Message ID | Time stamp | Message |
20230328170230 | 2023/03/28 17:02:30 | 1) Name of the substation and Time: 220 KV Okhla 14:46 Hrs
2) Name of element tripped/restored: 220kV Okhla-TKD Ckt-I
3) Relay Annunciation: -
4) Details of physically damaged equipment: -
5) Immediate corrective/system normalization steps performed: -
6) Any other relevant information: At 16:57 Hrs Charged
Regards, Delhi SLDC |
20230328152901 | 2023/03/28 15:29:01 | 1) Name of the substation and Time: 220kV Okhla, at 14:46 Hrs
2) Name of element tripped/restored: 220kV Okhla-TKD Ckt-I (Both end)
3) Relay Annunciation: Zone-1, R and B-Phase, distance- 2.9KM, 86, 86T, at Okhla end and
and Zone-1, Ib-18.89KA, TKD end
4) Details of physically damaged equipment: NA
5) Immediate corrective/system normalization steps performed: NA
6) Any other relevant information: No load effected
Regards, Delhi SLDC |
20230328142123 | 2023/03/28 14:21:24 | 1) Name of the substation and Time: 220kV Okhla, 13:02
2) Name of element tripped/restored: 220kV TKD Ckt-I
3) Relay Annunciation: -
4) Details of physically damaged equipment: -
5) Immediate corrective/system normalization steps performed: -
6) Any other relevant information: 14:17 hrs charged
Regards, Delhi SLDC |
20230328133126 | 2023/03/28 13:31:28 | 1) Name of the substation and Time: 220kV Okhla, 13:02Hrs
2) Name of element tripped/restored: 220kV TKD ckt-I (Both end tripped )
3) Relay Annunciation: Zone-1, R and B-Phase, distance- 2.59KM, 86, 86T, at Okhla end and Zone-1, B and C-Phase TKD end
4) Details of physically damaged equipment: NA
5) Immediate corrective/system normalization steps performed: NA
6) Any other relevant information: No load effected
Regards, Delhi SLDC |
20230327200017 | 2023/03/27 20:00:18 | 1) Name of the substation and Time: At Gopalpur(18:05hrs)
2) Name of element tripped/restored: 220KV Subzi mandi ckt-II
3) Relay Annunciation: RYB phase trip.
4) Details of physically damaged equipment: none.
5) Immediate corrective/system normalization steps performed: 220KV bus section put ON at Subzi mandi , load normalized.
6) Any other relevant information: none.
Regards, Delhi SLDC |
20230324150247 | 2023/03/24 15:02:48 | 1) Name of the substation and Time: 400 kv bamnouli @ 14.56
2) Name of element tripped/restored: 315MVA ICT-4 RESTORED
3) Relay Annunciation: NA
4) Details of physically damaged equipment: NA
5) Immediate corrective/system normalization steps performed: NA
6) Any other relevant information: NA
Regards, Delhi SLDC |
20230324140231 | 2023/03/24 14:02:32 | 1) Name of the substation and Time: 400KV Bamnauli, 13:27Hrs.
2) Name of element tripped/restored: 315MVA-IV along with 220KV I/C-IV with Local Transformer
3) Relay Annunciation: Differential Trip, RYB Phase, 86A, 86B, 186A and 186B on 315MVA-IV and Inter Tripping on 220KV I/C-IV
4) Details of physically damaged equipment: Nil
5) Immediate corrective/system normalization steps performed: Nil
6) Any other relevant information: Nil
Regards, Delhi SLDC |
20230324122959 | 2023/03/24 12:29:59 | 1) Name of the substation and Time: 400KV Bawana, 17:08Hrs.(23.03.2023)
2) Name of element tripped/restored: 315MVA ICT-IV restored
3) Relay Annunciation: Nil
4) Details of physically damaged equipment: Nil
5) Immediate corrective/system normalization steps performed: Nil
6) Any other relevant information: Nil
Regards, Delhi SLDC |
20230323165305 | 2023/03/23 16:53:06 | 1) Name of the substation and Time: At Sarita Vihar (16:04hrs)
2) Name of element tripped/restored: 220KV Maharani Bagh circuit.
3) Relay Annunciation: D/P, E/F, R phase, Zone-!.
4) Details of physically damaged equipment: none.
5) Immediate corrective/system normalization steps performed: 220KV B/C put ON at Sarita Vihar station.
6) Any other relevant information: No load was affected.
Regards, Delhi SLDC |
20230323154546 | 2023/03/23 15:45:47 | 1) Name of the substation and Time: At Sarita Vihar(14:38hrs)
2) Name of element tripped/restored: 220KV Maharani Bagh ckt
3) Relay Annunciation: Distance protection, zone-I, R phase, E/F.
4) Details of physically damaged equipment: awaited.
5) Immediate corrective/system normalization steps performed: 220KV B/C put ON at Sarita Vihar substation.
6) Any other relevant information: No load affected.
Regards, Delhi SLDC |
20230323143001 | 2023/03/23 14:30:01 | 1) Name of the substation and Time: At Bawana(12:17hrs)
2) Name of element tripped/restored: 315MVA ICT-IV
3) Relay Annunciation: Bucholz relay.
4) Details of physically damaged equipment: none.
5) Immediate corrective/system normalization steps performed: Transformer running in parallel with other transformers.
6) Any other relevant information: No load was affected.
Regards, Delhi SLDC |
20230322061956 | 2023/03/22 06:19:57 | 1) Name of the substation and Time: 220kv gazipur and 4.52
2) Name of element tripped/restored: 160 mva tr-1
3) Relay Annunciation: ovr flux optd
4) Details of physically damaged equipment: na
5) Immediate corrective/system normalization steps performed: na
6) Any other relevant information: na
Regards, Delhi SLDC |
20230321142241 | 2023/03/21 14:22:42 | 1) Name of the substation and Time: 220kV M/ Moth, 13:52 Hrs
2) Name of element tripped/restored: 100 MVA Tx.III with 33kV I/c-III
3) Relay Annunciation: HV side-Diff. relay RYB and
LV side- LV REF, 86
4) Details of physically damaged equipment: NA
5) Immediate corrective/system normalization steps performed: 33kV Bus-coupler put on at 14:15 hrs for system normalization
6) Any other relevant information: Approx. load effect 16 MW
Regards, Delhi SLDC |
20230321105241 | 2023/03/21 10:52:42 | 1) Name of the substation and Time: At 10:44 HRS
220KV SGTN
2) Name of element tripped/restored: 160MVA-I energized
3) Relay Annunciation: -
4) Details of physically damaged equipment: -
5) Immediate corrective/system normalization steps performed: -
6) Any other relevant information: 160MVA-I energized
system is normal
Regards, Delhi SLDC |
20230321005820 | 2023/03/21 00:58:20 | 1) Name of the substation and Time: Sabzi Mandi
2) Name of element tripped/restored: At 00:42Hrs 100MVA T/F-2 charged.
3) Relay Annunciation: na
4) Details of physically damaged equipment: na
5) Immediate corrective/system normalization steps performed: na
6) Any other relevant information: na
Regards, Delhi SLDC |
20230321001940 | 2023/03/21 00:19:41 | 1) Name of the substation and Time: SGTN
2) Name of element tripped/restored: 160MVA T/F-1 tripped on PRV at 23:54Hrs.
Load affected was 25MW.
At 00:12Hrs 66KV B/C closed and load normalised.
3) Relay Annunciation: na
4) Details of physically damaged equipment: na
5) Immediate corrective/system normalization steps performed: na
6) Any other relevant information: na
Regards, Delhi SLDC |
20230320200812 | 2023/03/20 20:08:14 | 1) Name of the substation and Time: Sabzi Mandi
2) Name of element tripped/restored: 100MVA T/F-2 tripped on E/F at 19:37Hrs.
Load affected was 50MW.
Discoms have been asked to shift their load.
3) Relay Annunciation: na
4) Details of physically damaged equipment: na
5) Immediate corrective/system normalization steps performed: na
6) Any other relevant information: na
Regards, Delhi SLDC |
20230320200450 | 2023/03/20 20:04:51 | 1) Name of the substation and Time: SOW
2) Name of element tripped/restored: At 19:09Hrs 220KV Mandaula ckt-I charged.
3) Relay Annunciation: na
4) Details of physically damaged equipment: na
5) Immediate corrective/system normalization steps performed: na
6) Any other relevant information: na
Regards, Delhi SLDC |
20230320200011 | 2023/03/20 20:00:12 | 1) Name of the substation and Time: SOW
2) Name of element tripped/restored: At 19:09Hrs 220KV Mandaula ckt-I charged.
3) Relay Annunciation: na
4) Details of physically damaged equipment: na
5) Immediate corrective/system normalization steps performed: na
6) Any other relevant information: na
Regards, Delhi SLDC |
20230320181623 | 2023/03/20 18:16:24 | 1) Name of the substation and Time: SOW
2) Name of element tripped/restored: At 18:02Hrs 220KV Mandaula ckt-I tripped on A-phase Z-1 0.8km If=16.65KA.
No load was affected.
3) Relay Annunciation: na
4) Details of physically damaged equipment: na
5) Immediate corrective/system normalization steps performed: na
6) Any other relevant information: na
Regards, Delhi SLDC |
20230319053649 | 2023/03/19 05:36:50 | 1) Name of the substation and Time: 220KV Park Street, 05:23Hrs.
2) Name of element tripped/restored: 220KV Dev Nagar restored
3) Relay Annunciation: Nil
4) Details of physically damaged equipment: Nil
5) Immediate corrective/system normalization steps performed: Nil
6) Any other relevant information: Nil
Regards, Delhi SLDC |
20230319053248 | 2023/03/19 05:32:49 | 1) Name of the substation and Time: 220KV Park Street, 04:02Hrs.
2) Name of element tripped/restored: 220KV Dev Nagar tripped
3) Relay Annunciation: Without any indication
4) Details of physically damaged equipment: Nil
5) Immediate corrective/system normalization steps performed: Confirm from both ends, no tripping at 220KV Dev Nagar end
6) Any other relevant information: After confirmation from 220KV Dev Nagar, circuit charged at 05:23Hrs.
Regards, Delhi SLDC |
20230316205646 | 2023/03/16 20:56:47 | 1) Name of the substation and Time: At Mundka(19:58hrs)
2) Name of element tripped/restored: 400KV Bus reactor 1 and 2.
3) Relay Annunciation: first time charging.
4) Details of physically damaged equipment: none.
5) Immediate corrective/system normalization steps performed: none.
6) Any other relevant information: 400KV Bay no. 401A and 402A energized.
Regards, Delhi SLDC |
20230315172130 | 2023/03/15 17:21:32 | 1) Name of the substation and Time: At Kanjhawla(13:06hrs)
2) Name of element tripped/restored: 100MVA-I and II .
3) Relay Annunciation: 100MVA-I tripped on 86 and 100MVA-II tripped on E/F ,86.
4) Details of physically damaged equipment: none.
5) Immediate corrective/system normalization steps performed: 66KV B/C put on at Kanjhawla.
6) Any other relevant information: none.
Regards, Delhi SLDC |
20230315171817 | 2023/03/15 17:18:18 | 1) Name of the substation and Time: At Bawana(14:59hrs)
2) Name of element tripped/restored: 220KV Kanjhawla ckt-II
3) Relay Annunciation: B phase, differential trip, zone-1.
4) Details of physically damaged equipment: none.
5) Immediate corrective/system normalization steps performed: 220KV B/C put on at Kanjhawla.
6) Any other relevant information: none.
Regards, Delhi SLDC |
20230315150618 | 2023/03/15 15:06:19 | 1) Name of the substation and Time: At Bawana(13:27hrs)
2) Name of element tripped/restored: 220KV Kanjhawla ckt-II.
3) Relay Annunciation: B phase differential trip, zone-I, 3.482KA fault.
4) Details of physically damaged equipment: none.
5) Immediate corrective/system normalization steps performed: 220KV B/C put ON at Kanjhawla and load normalized.
6) Any other relevant information: none.
Regards, Delhi SLDC |
20230315130121 | 2023/03/15 13:01:22 | 1) Name of the substation and Time: AT kANJHAWLA(12:18HRS)
2) Name of element tripped/restored: 100 MVA-I AND II(220/66 KV) TRANSFORMER
3) Relay Annunciation: 86 ON 100MVA-I AND E/F 86 ON 100MVA-II.
4) Details of physically damaged equipment: NONE
5) Immediate corrective/system normalization steps performed: 66KV B/C PUT ON , LOAD NORMALISED.
6) Any other relevant information: NONE.
Regards, Delhi SLDC |
20230311173707 | 2023/03/11 17:37:07 | 1) Name of the substation and Time: BTPS
2) Name of element tripped/restored: At 17:29Hrs 220KV Ballabgarh ckt-II charged.
3) Relay Annunciation: na
4) Details of physically damaged equipment: na
5) Immediate corrective/system normalization steps performed: na
6) Any other relevant information: na
Regards, Delhi SLDC |
20230311160505 | 2023/03/11 16:05:06 | 1) Name of the substation and Time: BTPS
2) Name of element tripped/restored: At 13:38Hrs 220KV Ballabgarh ckt-II tripped at BTPS end on Z-1 R-phase.
CVT Coming at BTPS end.
No load was affected.
3) Relay Annunciation: na
4) Details of physically damaged equipment: na
5) Immediate corrective/system normalization steps performed: na
6) Any other relevant information: na
Regards, Delhi SLDC |
20230310181705 | 2023/03/10 18:17:06 | 1) Name of the substation and Time: 220KV Pappankalan-II, 18:00Hrs.
2) Name of element tripped/restored: 100MVA-I restored
3) Relay Annunciation: N/A
4) Details of physically damaged equipment: N/A
5) Immediate corrective/system normalization steps performed: N/A
6) Any other relevant information: N/A
Regards, Delhi SLDC |
20230310133826 | 2023/03/10 13:38:27 | 1) Name of the substation and Time: PPK-2
2) Name of element tripped/restored: At 12:50Hrs 100MVA T/F-1 tripped on Differential C-phase LV REF.
No load was affected.
3) Relay Annunciation: na
4) Details of physically damaged equipment: na
5) Immediate corrective/system normalization steps performed: na
6) Any other relevant information: na
Regards, Delhi SLDC |
20230308151631 | 2023/03/08 15:16:32 | 1) Name of the substation and Time: 220kv PPK-1 @ 15.00 HRS
2) Name of element tripped/restored: 220KV BML- CKT-2 TRIPPED
3) Relay Annunciation: Z1 OPTD 7.1KM ,m2 optd dif trip ,86 optd
4) Details of physically damaged equipment: NA
5) Immediate corrective/system normalization steps performed: NA
6) Any other relevant information: cvt avaialble
Regards, Delhi SLDC |
20230305190346 | 2023/03/05 19:03:47 | 1) Name of the substation and Time: SCADA DATA COMMUNICATION
2) Name of element tripped/restored: NA
3) Relay Annunciation: NA
4) Details of physically damaged equipment: NA
5) Immediate corrective/system normalization steps performed: NA
6) Any other relevant information: SCADA Data for the Following Sub-Stations/lines/elements are suspect or not available: 1) 220kb lodhi road ,Power Transformer and Tr lines data suspect/not matching real time data 2) 220KV peeragarhi Power Transformer and Tr lines data suspect/not matching real time data 3) 220KV tRAUMA CENTREPower Transformer and Tr lines data suspect/not matching real time data 4) 220KV IP-PPG CKT-2 Tr lines data suspect/not matching real time data 5) ALL 220KV CB STATUS @ mBAGH END data suspect/not matching real time data 6) 220KV PPG-gEETACOLONY- CKT-2 CB STATUS suspect/not matching real time data Regards, Delhi SLDC
Regards, Delhi SLDC |
20230305185946 | 2023/03/05 18:59:47 | SCADA Data for the Following Sub-Stations/lines/elements are suspect or not available:
1) 220kb lodhi road ,Power Transformer and Tr lines data suspect/not matching real time data
2) 220KV peeragarhi Power Transformer and Tr lines data suspect/not matching real time data
3) 220KV tRAUMA CENTREPower Transformer and Tr lines data suspect/not matching real time data
4) 220KV IP-PPG CKT-2 Tr lines data suspect/not matching real time data
5) ALL 220KV CB STATUS @ mBAGH END data suspect/not matching real time data
6) 220KV PPG-gEETACOLONY- CKT-2 CB STATUS suspect/not matching real time data
Regards, Delhi SLDC |
20230305093559 | 2023/03/05 09:35:59 | 1) Name of the substation and Time: At 09:30HRS
220KV Sarita vihar
2) Name of element tripped/restored: 220KV SVR-Pragati ckt energized at 09:30 HRS
3) Relay Annunciation: -
4) Details of physically damaged equipment: -
5) Immediate corrective/system normalization steps performed: -
6) Any other relevant information: 220KV SVR-Pragati ckt energized at 09:30 HRS
Regards, Delhi SLDC |
20230304231714 | 2023/03/04 23:17:15 | 1) Name of the substation and Time: 220kV Sarita Vihar @ 22:59 Hrs
2) Name of element tripped/restored: 220kV Sarita Vihar-Pragati Tripped.
3) Relay Annunciation: @ Sarita Vihar : Distance 6.67km , Zone-1 , B Phase.
@ Pragati End : Distance Trip, Zone-I, 5.485km, 186, Fault Current - 11.96kA.
4) Details of physically damaged equipment: na
5) Immediate corrective/system normalization steps performed: na
6) Any other relevant information: na
Regards, Delhi SLDC |
20230303140834 | 2023/03/03 14:08:34 | 1) Name of the substation and Time: 220kV Maharani Bagh @ 13:58 Hrs
2) Name of element tripped/restored: 220kV Trauma Centre Ckt - I restored.
3) Relay Annunciation: na
4) Details of physically damaged equipment: na
5) Immediate corrective/system normalization steps performed: na
6) Any other relevant information: na
Regards, Delhi SLDC |
20230303122325 | 2023/03/03 12:23:26 | 1) Name of the substation and Time: Maharani Bagh
2) Name of element tripped/restored: At 11:56Hrs 220KV Mahrani Bagh-Trauma ckt-I tripped at Maharani Bagh end without indication.
Load affected was 136MW (Trauma Centre and RK Puram).
At 12:05Hrs Load normalised through 220KV B/C of RK Puram.
3) Relay Annunciation: na
4) Details of physically damaged equipment: na
5) Immediate corrective/system normalization steps performed: na
6) Any other relevant information: NA
Regards, Delhi SLDC |
20230302084709 | 2023/03/02 08:47:10 | 1) Name of the substation and Time: At 03:14 HRS
220KV Kanjhawala
2) Name of element tripped/restored: 220KV BWN-KNJ ckt-I energized
3) Relay Annunciation: -
4) Details of physically damaged equipment: -
5) Immediate corrective/system normalization steps performed: At 03:14 HRS
220KV Kanjhawala
220KV BWN-KNJ ckt-I energized
6) Any other relevant information: All Tripped Element has been energized and system is normal at KV Kanjhawala
Regards, Delhi SLDC |
20230302083210 | 2023/03/02 08:32:11 | 1) Name of the substation and Time: 220 KV KNJ at 08:25 Hrs
2) Name of element tripped/restored: 220 KV KNJ-BWA ckt-II Charged at 08:25 Hrs
3) Relay Annunciation: -
4) Details of physically damaged equipment: -
5) Immediate corrective/system normalization steps performed: -
6) Any other relevant information: -
Regards, Delhi SLDC |
20230302061951 | 2023/03/02 06:19:52 | 1) Name of the substation and Time: 220 KV KNJ Corrigendum massage
2) Name of element tripped/restored: 100 MVA Px-II at 03:10 Hrs charge
3) Relay Annunciation: -
4) Details of physically damaged equipment: -
5) Immediate corrective/system normalization steps performed: -
6) Any other relevant information: 100 MVA Px-II at 03:10 Hrs charge at 03:10 Hrs
Regards, Delhi SLDC |
20230302060610 | 2023/03/02 06:06:11 | 1) Name of the substation and Time: 220 KNJ
2) Name of element tripped/restored: 100 MVA Px-I and 220 KV BWA-KNJ Ckt-I
3) Relay Annunciation: -
4) Details of physically damaged equipment: -
5) Immediate corrective/system normalization steps performed: -
6) Any other relevant information: 100 MVA Px-I charge at 03:10 Hra and 220 KV BWA-KNJ Ckt-I charge at 03:14 Hrs
Regards, Delhi SLDC |
20230302025834 | 2023/03/02 02:58:35 | 1) Name of the substation and Time: 220kV KNJ, at 02:04 Hrs
2) Name of element tripped/restored: 220kV BWN I and II, 100 MVA Tx-II
3) Relay Annunciation: Without indication/ Relay at KNJ end.
at BWN end-B-Ph trip, Dist. trip, Zone-1,Fault location -8.06kM relay operated at 220 KNJ -II Ckt
4) Details of physically damaged equipment: NA
5) Immediate corrective/system normalization steps performed: System normalized , at 2:13 Hrs, 220kV Mundka CB closed and at 02:23 Hrs B/C closed. Load effected approx. 60 MW
6) Any other relevant information: System normalized 2:23 Hrs.
Regards, Delhi SLDC |
20230227154014 | 2023/02/27 15:40:14 | 1) Name of the substation and Time: At Mehrauli: 13:59hrs
2) Name of element tripped/restored: 220KV Dial-II
3) Relay Annunciation: B phase, BCU,E/F .
4) Details of physically damaged equipment: none
5) Immediate corrective/system normalization steps performed: 220KV Bamnauli-I put ON at 220KV Dial.
6) Any other relevant information: 220KV B/C was in ON position at Dial end.
Regards, Delhi SLDC |
20230227153533 | 2023/02/27 15:35:34 | 1) Name of the substation and Time: At Mehrauli: 13:29hrs
2) Name of element tripped/restored: 220KV Dial-II
3) Relay Annunciation: B phase, D/P amd E/F.
4) Details of physically damaged equipment: none.
5) Immediate corrective/system normalization steps performed: 220KV Bamnauli-I put ON for redundancy.
6) Any other relevant information: 220KV B/C was in ON position at Dial end.
Regards, Delhi SLDC |
20230223213757 | 2023/02/23 21:38:14 | 1) Name of the substation and Time: Test
2) Name of element tripped/restored: Test
3) Relay Annunciation: Test
4) Details of physically damaged equipment: Test
5) Immediate corrective/system normalization steps performed: Test
6) Any other relevant information: Test
Regards, Delhi SLDC |
20230223163621 | 2023/02/23 16:43:54 | 1) Name of the substation and Time: Test
2) Name of element tripped/restored: Test
3) Relay Annunciation: Test
4) Details of physically damaged equipment: Test
5) Immediate corrective/system normalization steps performed: Test
6) Any other relevant information: Test
Regards, Delhi SLDC |
20230223163400 | 2023/02/23 16:34:01 | 1) Name of the substation and Time: Test
2) Name of element tripped/restored: Test
3) Relay Annunciation: Test
4) Details of physically damaged equipment: Test
5) Immediate corrective/system normalization steps performed: Test
6) Any other relevant information: Test
Regards, Delhi SLDC |
20230223144108 | 2023/02/23 14:41:09 | 1) Name of the substation and Time: 220kV Kashmere Gate @ 14:23 Hrs
2) Name of element tripped/restored: 220kV K.Gate- SOW II tripped.
3) Relay Annunciation: Relay at K.Gate end: R-ph. Dist, Differential.
Relay at SOW end - R -Ph, Dist. Zone-I , 4.425km
4) Details of physically damaged equipment: nil
5) Immediate corrective/system normalization steps performed: B/C On at K.Gate
6) Any other relevant information: Nil
Regards, Delhi SLDC |
20230222112431 | 2023/02/22 11:24:32 | 1) Name of the substation and Time: Testing. Please ignore
2) Name of element tripped/restored: Testing. Please ignore
3) Relay Annunciation: Testing. Please ignore
4) Details of physically damaged equipment: Testing. Please ignore
5) Immediate corrective/system normalization steps performed: Testing. Please ignore
6) Any other relevant information: Testing. Please ignore
Regards, Delhi SLDC |
20230221192953 | 2023/02/21 19:29:55 | 1) Name of the substation and Time: 220kV Okhla, At 18:34 Hrs
2) Name of element tripped/restored: 100 MVA tx-III with 33kV I/C-III
3) Relay Annunciation: 96, LV REF, FA, F9 ,inter triping
4) Details of physically damaged equipment: -
5) Immediate corrective/system normalization steps performed: -
6) Any other relevant information: Due to Monkey electrocuted, and no load effected
Regards, Delhi SLDC |
20230221151723 | 2023/02/21 15:17:23 | 1) Name of the substation and Time: 220KV SOW, 15:05Hrs.
2) Name of element tripped/restored: 20MVA-III along with 11KV I/C-III restored
3) Relay Annunciation: N/A
4) Details of physically damaged equipment: N/A
5) Immediate corrective/system normalization steps performed: N/A
6) Any other relevant information: N/A
Regards, Delhi SLDC |
20230221151300 | 2023/02/21 15:13:01 | 1) Name of the substation and Time: 220KV SOW, 14:32Hrs.
2) Name of element tripped/restored: 20MVA-III along with 11KV I/C-III
3) Relay Annunciation: REFLV and E/F on 20MVA-III and Inter Tripping and Master Relay on 11KV I/C-III
4) Details of physically damaged equipment: N/A
5) Immediate corrective/system normalization steps performed: N/A
6) Any other relevant information: Total load effected - 5MW for 13 Minutes
Regards, Delhi SLDC |
20230220200939 | 2023/02/20 20:09:40 | 1) Name of the substation and Time: 220KV DIAL, 13:58hrs
2) Name of element tripped/restored: 220KV Mehrauli-I.
3) Relay Annunciation: Gen Trip, R phase, zone-II.
4) Details of physically damaged equipment: none.
5) Immediate corrective/system normalization steps performed: load taken on 220KV Bamnoli-I.
6) Any other relevant information: none.
Regards, Delhi SLDC |
20230220150235 | 2023/02/20 15:02:36 | 1) Name of the substation and Time: 220KV Tughlakabad, 14:46Hrs.
2) Name of element tripped/restored: 220KV Mehrauli-II restored
3) Relay Annunciation: N/A
4) Details of physically damaged equipment: N/A
5) Immediate corrective/system normalization steps performed: N/A
6) Any other relevant information: N/A
Regards, Delhi SLDC |
20230220150022 | 2023/02/20 15:00:23 | 1) Name of the substation and Time: 220KV Tughlakabad, 13:58Hrs.
2) Name of element tripped/restored: 220KV Mehrauli-II tripped
3) Relay Annunciation: Differential Trip, R-Phase, Fault Location - 14.40Km and Fault Current, R-Phase - 10.61KA
4) Details of physically damaged equipment: N/A
5) Immediate corrective/system normalization steps performed: N/A
6) Any other relevant information: 36MW Load effeted for 5 Minutes at 220KV Mehrauli, 33MW Load effected for 2 Minutes at 220KV Vasant Kunj and no load effected at 220KV DIAL.
Regards, Delhi SLDC |
20230220141640 | 2023/02/20 14:16:41 | 1) Name of the substation and Time: 220KV DIAL, 13:58Hrs.
2) Name of element tripped/restored: 220KV Mehrauli-I tripped
3) Relay Annunciation: General Trip, R-Phase and Zone-2
4) Details of physically damaged equipment: N/A
5) Immediate corrective/system normalization steps performed: N/A
6) Any other relevant information: N/A
Regards, Delhi SLDC |
20230220124923 | 2023/02/20 12:49:24 | 1) Name of the substation and Time: 220kV Trauma Center, 12:44Hrs
2) Name of element tripped/restored: 220kV Trauma center-Maharanibagh Ckt-1 charged at no load
3) Relay Annunciation: NIL
4) Details of physically damaged equipment: NIL
5) Immediate corrective/system normalization steps performed: NIL
6) Any other relevant information: NIL
Regards, Delhi SLDC |
20230219185041 | 2023/02/19 18:50:42 | 1) Name of the substation and Time: 220kV Subji Mandi @ 18:25Hrs
2) Name of element tripped/restored: 16MVA Tx got tripped with 33kV Tripolia Feeder @18:15Hrs. Differential relay. Tx restored @ 18:25 Hrs.
3) Relay Annunciation: na
4) Details of physically damaged equipment: na
5) Immediate corrective/system normalization steps performed: na
6) Any other relevant information: Tx Tripped with O/G Tripolia Feeder.
Regards, Delhi SLDC |
20230219082035 | 2023/02/19 08:20:36 | 1) Name of the substation and Time: 220kV MLI, 07:15 Hrs
2) Name of element tripped/restored: 220kV TKD ckt-II, 08:12 hrs Charged
3) Relay Annunciation: -
4) Details of physically damaged equipment: -
5) Immediate corrective/system normalization steps performed: -
6) Any other relevant information: 220kV TKD ckt-II, 08:12 hrs Charged
Regards, Delhi SLDC |
20230219074531 | 2023/02/19 07:45:32 | 1) Name of the substation and Time: At 07:15 HRS
220KV Mehrauli
2) Name of element tripped/restored: 220KV Tuglakabad -II
3) Relay Annunciation: Relay at TUGB
gen treip b-phase trip,diffrential trip 3 PHase,Fault current 10.748KA C- phase ,Location 4.60KM
Relay Meharuli
R,Y,B phase,Zone-I Diffrential
4) Details of physically damaged equipment: -
5) Immediate corrective/system normalization steps performed: At 07:23 HRS
220KV Bus coupler Closed at 220KV Mehrauli
Syatem normalised
6) Any other relevant information: Approx 81 MW Load effected
Regards, Delhi SLDC |
20230217063410 | 2023/02/17 06:34:11 | 1) Name of the substation and Time: 220kV Parkstreet @ 06:23 Hrs
2) Name of element tripped/restored: 33kV Incomer-II Restored on 33KV Bus-I in reference to previous tripping.
3) Relay Annunciation: NA
4) Details of physically damaged equipment: NA
5) Immediate corrective/system normalization steps performed: NA
6) Any other relevant information: 33kV Bus-II yet to be restored.
Regards, Delhi SLDC |
20230217052231 | 2023/02/17 05:22:32 | 1) Name of the substation and Time: 220kV Parkstreet @ 04:24Hrs
2) Name of element tripped/restored: 33kV Incomer-II Tripped. Possibly due to Monkey Fall and R Phase Conductor of Bus snapped. Approx 9 MW load affected.
3) Relay Annunciation: O/C R Ph. and Y Ph. , Any Trip.
4) Details of physically damaged equipment: R ph. Conductor of 33kV Bus.
5) Immediate corrective/system normalization steps performed: Thorugh Inspection and Shifting of Feeders to Another Bus.
6) Any other relevant information: NA
Regards, Delhi SLDC |
20230214165930 | 2023/02/14 16:59:30 | 1) Name of the substation and Time: 220kV Masjid Moth @ 16:53
2) Name of element tripped/restored: 33kv Incomer I and II Energised Of 100MVA Tx I and II.
3) Relay Annunciation: na
4) Details of physically damaged equipment: na
5) Immediate corrective/system normalization steps performed: na
6) Any other relevant information: na
Regards, Delhi SLDC |
20230214093920 | 2023/02/14 09:39:21 | 1) Name of the substation and Time: 220kV M/Moth, 09:05 Hrs
2) Name of element tripped/restored: 100 MVA Tx-I, Energized on no load
3) Relay Annunciation: -
4) Details of physically damaged equipment: -
5) Immediate corrective/system normalization steps performed: 09:05 Hrs, Energized on no load
6) Any other relevant information: -
Regards, Delhi SLDC |
20230214084013 | 2023/02/14 08:40:14 | 1) Name of the substation and Time: 220kV, GZP, at 07:55 Hrs
2) Name of element tripped/restored: 160 MVA-III with I/C-III
3) Relay Annunciation: Differential relay RY and B-Ph, HIS trip, O/C Y and Y-Ph
4) Details of physically damaged equipment: NA
5) Immediate corrective/system normalization steps performed: NA
6) Any other relevant information: No load effected
Regards, Delhi SLDC |
20230213195245 | 2023/02/13 19:52:46 | 1) Name of the substation and Time: At 18:55 HRS
220KV MAsjid MOTH
2) Name of element tripped/restored: 220KV Maharani Bagh Ckt-I ,with 220KV Bus-I and II Energized with 220KV Buscoupler
3) Relay Annunciation: -
4) Details of physically damaged equipment: -
5) Immediate corrective/system normalization steps performed: -
6) Any other relevant information: At 18:55 HRS
220KV Maharani Bagh Ckt-I ,with 220KV Bus-I and II Energized with 220KV Buscoupler
Regards, Delhi SLDC |
20230213170230 | 2023/02/13 17:02:30 | 1) Name of the substation and Time: 220KV GZP @16.58
2) Name of element tripped/restored: 220KV PPG RESTORED
3) Relay Annunciation: NA
4) Details of physically damaged equipment: NA
5) Immediate corrective/system normalization steps performed: NA
6) Any other relevant information: NA
Regards, Delhi SLDC |
20230213164930 | 2023/02/13 16:49:31 | 1) Name of the substation and Time: 220kv ppg @16.35
2) Name of element tripped/restored: 220kv gazipur
3) Relay Annunciation: any trip,ef stage 1 ,86
4) Details of physically damaged equipment: na
5) Immediate corrective/system normalization steps performed: na
6) Any other relevant information: na
Regards, Delhi SLDC |
20230213164901 | 2023/02/13 16:49:02 | 1) Name of the substation and Time: 220kv ppg @16.35
2) Name of element tripped/restored: 220kv gazipur
3) Relay Annunciation: any trip,ef stage 1 ,86
4) Details of physically damaged equipment: na
5) Immediate corrective/system normalization steps performed: na
6) Any other relevant information: na
Regards, Delhi SLDC |
20230213163011 | 2023/02/13 16:30:12 | 1) Name of the substation and Time: 220kV Harshvihar, 16:26
2) Name of element tripped/restored: 220kV Harshvihar-Preetvihar ckt-II charged
3) Relay Annunciation: Nil
4) Details of physically damaged equipment: Nil
5) Immediate corrective/system normalization steps performed: Nil
6) Any other relevant information: Nil
Regards, Delhi SLDC |
20230213161518 | 2023/02/13 16:15:18 | 1) Name of the substation and Time: 220kV Mazjid Mod, 13:58Hrs
2) Name of element tripped/restored: 220kV Maharani Bagh- Mazjid Mod Ckt I charged
3) Relay Annunciation: NIL
4) Details of physically damaged equipment: NIL
5) Immediate corrective/system normalization steps performed: NIL
6) Any other relevant information: NIL
Regards, Delhi SLDC |
20230212013550 | 2023/02/12 01:35:51 | 1) Name of the substation and Time: PPK-3
2) Name of element tripped/restored: At 00:32Hrs 160MVA T/F-2 tripped on LV REF.
Load affected was 20MW.
At 00:40Hrs load normalised through 66KV B/C.
At 01:34Hrs 160MVA T/F-2 charged.
3) Relay Annunciation: na
4) Details of physically damaged equipment: na
5) Immediate corrective/system normalization steps performed: na
6) Any other relevant information: na
Regards, Delhi SLDC |
20230211183250 | 2023/02/11 18:32:50 | 1) Name of the substation and Time: 220kV Mehrauli @ 18:00Hrs
2) Name of element tripped/restored: 100MVA Tx 2 with its 66kv Incomer Tripped.
3) Relay Annunciation: Differential Prot., Bucchholz, 86 Master
4) Details of physically damaged equipment: Nil
5) Immediate corrective/system normalization steps performed: Load came on other Transformers.
6) Any other relevant information: Yard is being checked for any other information
Regards, Delhi SLDC |
20230209145101 | 2023/02/09 14:51:01 | 1) Name of the substation and Time: 220kV Shalimarbagh, at 14:09 Hrs
2) Name of element tripped/restored: 220kV Bawana Ckt-I and SGTN-II with effected 220kV DMRC-I, WZP-I,WZP-II, SGTN-I
3) Relay Annunciation: Bus-Bar operated at Shalimarbagh end and At SGTN-II (In Main-I,Y and B-Ph, Zone-I) and (In Main-II,Y and B-Ph, Distance-2.53KM)
4) Details of physically damaged equipment: NA
5) Immediate corrective/system normalization steps performed: System is normalized at 14:26Hrs except SGTN-II
6) Any other relevant information: Approx. load effected 171 MW
Regards, Delhi SLDC |
20230208172558 | 2023/02/08 17:25:58 | 1) Name of the substation and Time: 220kV RPH, at 17.05 Hrs
2) Name of element tripped/restored: 33kV I/C-II (Bay-22) and 33kV Bay no. 18 due to monkey electrocuted
3) Relay Annunciation: 33kV I/C-II (Bay-22) due to O/C and E/F and 33kV Bay no. 18 on distance protection relay R and Y -Ph
4) Details of physically damaged equipment: NIL
5) Immediate corrective/system normalization steps performed: System is normalized at 17.20 hrs
6) Any other relevant information: Approx. load effect- 10MW
Regards, Delhi SLDC |
20230204084504 | 2023/02/04 08:45:05 | 1) Name of the substation and Time: Tughlakabad
2) Name of element tripped/restored: At 06:35Hrs 160MVA T/F-1 tripped on PRV Differential.
No load was affected
3) Relay Annunciation: na
4) Details of physically damaged equipment: na
5) Immediate corrective/system normalization steps performed: na
6) Any other relevant information: na
Regards, Delhi SLDC |
20230203063957 | 2023/02/03 06:39:58 | 1) Name of the substation and Time: 400kV Bamnauli, at 04:00 Hrs
2) Name of element tripped/restored: 400kV Jhatikara Ckt-II
3) Relay Annunciation: Over-voltage relay
4) Details of physically damaged equipment: -
5) Immediate corrective/system normalization steps performed: At 05:55 hrs, Energized
6) Any other relevant information: -
Regards, Delhi SLDC |
20230202195020 | 2023/02/02 19:50:21 | 1) Name of the substation and Time: 220kV RPH, 18:06 Hrs
2) Name of element tripped/restored: 33kV I/C-II with 33kV BUS(RHS) and bay-18(Town Hall)
3) Relay Annunciation: O/C and E/F on 33kV I/C-II and bay-18(Town Hall)
4) Details of physically damaged equipment: R and Y- Ph CT damaged of bay-18(Town Hall)
5) Immediate corrective/system normalization steps performed: System is normalized at 19:30 Hrs except bay-18(Town Hall)
6) Any other relevant information: Approx. load effected 22Mw
Regards, Delhi SLDC |
20230130212339 | 2023/01/30 21:23:40 | 1) Name of the substation and Time: At 220KV PPK-I (18:05hrs)
2) Name of element tripped/restored: 220KV Dwarka-II, and 66KV I/C-II and III.
3) Relay Annunciation: Tripped on E/f , R and B phase.
4) Details of physically damaged equipment: 66KV Bphase isolator jumper of DMRC snapped.
5) Immediate corrective/system normalization steps performed: System normalized after yard clearance.
6) Any other relevant information: None.
Regards, Delhi SLDC |
20230130211633 | 2023/01/30 21:16:33 | 1) Name of the substation and Time: At 220KV PPK-I (17:50hrs)
2) Name of element tripped/restored: 220KV Dwarka-II and 66KV I/C-II and III.
3) Relay Annunciation: Tripped on E/F , R and B phase.
4) Details of physically damaged equipment: 66KV B-phase isolator jumper of DMRC-I snapped.
5) Immediate corrective/system normalization steps performed: system normalized after yard clearance at 18:05hrs.
6) Any other relevant information: None.
Regards, Delhi SLDC |
20230130170433 | 2023/01/30 17:04:34 | 1) Name of the substation and Time: Okhla
2) Name of element tripped/restored: At 15:25Hrs
100MVA 220/33KV T/F-4 charged.
3) Relay Annunciation: na
4) Details of physically damaged equipment: na
5) Immediate corrective/system normalization steps performed: na
6) Any other relevant information: na
Regards, Delhi SLDC |
20230130085133 | 2023/01/30 08:51:34 | 1) Name of the substation and Time: 220kv okhla @ 08.26
2) Name of element tripped/restored: 100 mva tr-4
3) Relay Annunciation: Diff optd ,86,RYB trip
4) Details of physically damaged equipment: NA
5) Immediate corrective/system normalization steps performed: NA
6) Any other relevant information: NA
Regards, Delhi SLDC |
20230129233625 | 2023/01/29 23:36:25 | 1) Name of the substation and Time: 220kv peera garhi@23.14
2) Name of element tripped/restored: 100 mva tr-1
3) Relay Annunciation: diff optd ,trip ABC,86 AB,LV REF
4) Details of physically damaged equipment: NA
5) Immediate corrective/system normalization steps performed: LOAD Manged by other transformer
6) Any other relevant information: na
Regards, Delhi SLDC |
20230129173753 | 2023/01/29 17:37:54 | 1) Name of the substation and Time: Patparganj
2) Name of element tripped/restored: At 17:10Hrs 100MVA 220/66KV T/F-2 charged.
3) Relay Annunciation: na
4) Details of physically damaged equipment: na
5) Immediate corrective/system normalization steps performed: na
6) Any other relevant information: na
Regards, Delhi SLDC |
20230129170725 | 2023/01/29 17:07:26 | 1) Name of the substation and Time: Patparganj
2) Name of element tripped/restored: At 16:35Hrs 100MVA 220/66KV T/F-2 and 66KV B/C tripped.
Load affected was 25MW.
Discom have shifted its load.
3) Relay Annunciation: Relay on 66KV B/C are O/C R-phase E/F.
Relay on 66KV I/C-II is E/F.
4) Details of physically damaged equipment: na
5) Immediate corrective/system normalization steps performed: na
6) Any other relevant information: na
Regards, Delhi SLDC |
20230129163411 | 2023/01/29 16:34:12 | 1) Name of the substation and Time: Maharani Bagh
2) Name of element tripped/restored: At 15:50Hrs 220KV Maharani Bagh-Trauma Centre ckt. I and II and 220KV Maharani Bagh-Masjid Moth ckt. I and II caught fire near barapula flyover.
Fire Brigade dept. has also been informed.
Load affected was approx. 320MW.
Load of Trauma Centre grid normalised through Tughlakabad-Rk Puram ckt. while for Masjid Moth discoms have been asked to shift the load.
3) Relay Annunciation: na
4) Details of physically damaged equipment: na
5) Immediate corrective/system normalization steps performed: na
6) Any other relevant information: na
Regards, Delhi SLDC |
20230124145518 | 2023/01/24 14:55:19 | 1) Name of the substation and Time: At 14:35HRS
220KV Lodhi road
2) Name of element tripped/restored: 33KV I/C No-3
3) Relay Annunciation: 86A,B
4) Details of physically damaged equipment: -
5) Immediate corrective/system normalization steps performed: At 14:45HRS
33KV I/C No-3 Energized
6) Any other relevant information: Load effected approx 11MW
Regards, Delhi SLDC |
20230123214702 | 2023/01/23 21:47:02 | 1) Name of the substation and Time: 220kV Gopalpur@ 21:27Hrs
2) Name of element tripped/restored: 220kV Mandola - Gopalpur ckt 1 normal.
3) Relay Annunciation: NA
4) Details of physically damaged equipment: NA
5) Immediate corrective/system normalization steps performed: NA
6) Any other relevant information: NA
Regards, Delhi SLDC |
20230123195920 | 2023/01/23 19:59:20 | 1) Name of the substation and Time: Gopalpur
2) Name of element tripped/restored: At 19:33Hrs supply fail of 220KV Mandaula ckt-I.
Load affected was 47MW.
At 19:35Hrs Load normalised through 220KV SOW ckt-II.
3) Relay Annunciation: na
4) Details of physically damaged equipment: na
5) Immediate corrective/system normalization steps performed: na
6) Any other relevant information: na
Regards, Delhi SLDC |
20230120112843 | 2023/01/20 11:28:44 | 1) Name of the substation and Time: 220kV Kanjhawala, 10:30Hrs
2) Name of element tripped/restored: 66kV Incomer of 160MVA Transformer NO.3
3) Relay Annunciation: Master Trip, 50/51, IP Trip
4) Details of physically damaged equipment: R-Phase Isolator of 66kV Bus-II for Incomer NO.3 of 160MVA Transformer NO.-III.
5) Immediate corrective/system normalization steps performed: 66kV Feeders are shifted to 66kV BUS-I
6) Any other relevant information: At 11:05Hrs Load shifted to 66kV BUS-I, 60MW Load affected for 35 Minutes, Incomer of 160 MVA Transformer No-3 charged at 11:16 Hrs and connected to 66kV BUS-I.
Regards, Delhi SLDC |
20230119172230 | 2023/01/19 17:22:30 | 1) Name of the substation and Time: 220kv dev nagar@17.14
2) Name of element tripped/restored: 100 mva tr-4 restored
3) Relay Annunciation: na
4) Details of physically damaged equipment: na
5) Immediate corrective/system normalization steps performed: na
6) Any other relevant information: na
Regards, Delhi SLDC |
20230119172103 | 2023/01/19 17:21:04 | 1) Name of the substation and Time: 220kv dev nagar @17.08
2) Name of element tripped/restored: 100 mva tr-4
3) Relay Annunciation: nutral displacment relay
4) Details of physically damaged equipment: na
5) Immediate corrective/system normalization steps performed: na
6) Any other relevant information: na
Regards, Delhi SLDC |
20230119161755 | 2023/01/19 16:17:56 | 1) Name of the substation and Time: 220kv saritavihar@ 16.15
2) Name of element tripped/restored: 220kv pragati ckt charged
3) Relay Annunciation: na
4) Details of physically damaged equipment: na
5) Immediate corrective/system normalization steps performed: na
6) Any other relevant information: na
Regards, Delhi SLDC |
20230119144232 | 2023/01/19 14:42:32 | 1) Name of the substation and Time: 220kv saritavihae@14.26
2) Name of element tripped/restored: 220kv pragari
3) Relay Annunciation: y,b ph trip,z1, fault location 3.412 km
4) Details of physically damaged equipment: na
5) Immediate corrective/system normalization steps performed: na
6) Any other relevant information: na
Regards, Delhi SLDC |
20230119113054 | 2023/01/19 11:30:55 | 1) Name of the substation and Time: 220 kv lodhiroad @11.23
2) Name of element tripped/restored: 100 mva tr-3
3) Relay Annunciation: na
4) Details of physically damaged equipment: na
5) Immediate corrective/system normalization steps performed: na
6) Any other relevant information: restored
Regards, Delhi SLDC |
20230118204348 | 2023/01/18 20:43:49 | 1) Name of the substation and Time: Lodhi Road
2) Name of element tripped/restored: At 19:10Hrs 100MVA T/F-3 tripped on 86.
T/F was at no load.
3) Relay Annunciation: na
4) Details of physically damaged equipment: na
5) Immediate corrective/system normalization steps performed: na
6) Any other relevant information: na
Regards, Delhi SLDC |
20230116093322 | 2023/01/16 09:33:23 | 1) Name of the substation and Time: At 220KV Okhla(09:15hrs)
2) Name of element tripped/restored: 66KV I/C-I and II.
3) Relay Annunciation: O/C, R-phase.
4) Details of physically damaged equipment: none.
5) Immediate corrective/system normalization steps performed: BRPL informed to C/O load.
6) Any other relevant information: Monkey jump on 66KV common jumper -bus isolators of 20MVA-I transformer.
Regards, Delhi SLDC |
20230116093141 | 2023/01/16 09:31:42 | 1) Name of the substation and Time: At 220KV Okhkla(08:49hrs)
2) Name of element tripped/restored: 66KV I/C-I and II.
3) Relay Annunciation: O/C , R-phase.
4) Details of physically damaged equipment: none.
5) Immediate corrective/system normalization steps performed: BRPL informed to C/O load.
6) Any other relevant information: Monkey jump on 66KV common jumper -bus isolators of 20MVA-I transformer.
Regards, Delhi SLDC |
20230114153200 | 2023/01/14 15:32:01 | 1) Name of the substation and Time: 220kV Mehrauli @ 14:54Hrs
2) Name of element tripped/restored: 220kV TGK-2 restored.
3) Relay Annunciation: na
4) Details of physically damaged equipment: na
5) Immediate corrective/system normalization steps performed: na
6) Any other relevant information: na
Regards, Delhi SLDC |
20230114113423 | 2023/01/14 11:34:24 | 1) Name of the substation and Time: 220kV Maehrauli @ 10:35Hrs
2) Name of element tripped/restored: 220kV Tughlakabad ckt 2 tripped.
3) Relay Annunciation: Line Diffrential Y and B Phase, Wrongly shown distance - 25.3kM, Fauly Current - 24.7kA.
Relay at TGK end Zone-1 and 2, Y and B phase, Line Differential, Distance- 1.9km, Fault Current 24.3kA (Y phase) and 24.7kA(B-phase).
4) Details of physically damaged equipment: Nil
5) Immediate corrective/system normalization steps performed: Bus Coupler Put ON
6) Any other relevant information: 220kV Bus Coplers of Mehrauli and DIAL were in OFF position however 66kV B/C of DIAL was ON. This caused high loading of Txs at DIAL momentarily.
Regards, Delhi SLDC |
20230113162928 | 2023/01/13 16:29:29 | 1) Name of the substation and Time: 400/220kv Dwaraka @ 16:12 Hrs
2) Name of element tripped/restored: 220kV Bus-1 Section-1 restored @ 16:12 Hrs
3) Relay Annunciation: NA
4) Details of physically damaged equipment: NA
5) Immediate corrective/system normalization steps performed: NA
6) Any other relevant information: NA
Regards, Delhi SLDC |
20230113143719 | 2023/01/13 14:37:20 | 1) Name of the substation and Time: 400/220kV Dwaraka
2) Name of element tripped/restored: 220kV Bus-1 Section-1
3) Relay Annunciation: Low Gas Pressure Density
4) Details of physically damaged equipment: NIL
5) Immediate corrective/system normalization steps performed: Feeder shifted to other Bus section
6) Any other relevant information: NIL
Regards, Delhi SLDC |
20230112190554 | 2023/01/12 19:05:55 | 1) Name of the substation and Time: At 19:00 HRS
220KV BTPS
2) Name of element tripped/restored: 220KV BLLBGH-Badarpur CKT-I Energized
3) Relay Annunciation: -
4) Details of physically damaged equipment: -
5) Immediate corrective/system normalization steps performed: -
6) Any other relevant information: 220KV BLLBGH-Badarpur CKT-I Energized
Regards, Delhi SLDC |
20230112181535 | 2023/01/12 18:15:36 | 1) Name of the substation and Time: At 16:55 HRS
220KV BTPS
2) Name of element tripped/restored: 220KV Balabhgasrh CKT-I tripped at BTPS end only .CVT is available at BTPS end
3) Relay Annunciation: L!-L3 Fault Location 24.7KM
4) Details of physically damaged equipment: -
5) Immediate corrective/system normalization steps performed: Noload effected
6) Any other relevant information: -
Regards, Delhi SLDC |
20230112121028 | 2023/01/12 12:10:28 | 1) Name of the substation and Time: 220KV Preet Vihar, 09:38Hrs.
2) Name of element tripped/restored: 220KV Harsh Vihar-II restored
3) Relay Annunciation: N/A
4) Details of physically damaged equipment: N/A
5) Immediate corrective/system normalization steps performed: N/A
6) Any other relevant information: N/A
Regards, Delhi SLDC |
20230112081155 | 2023/01/12 08:11:56 | 1) Name of the substation and Time: At 220KVPreet Vihar(06:51hrs)
2) Name of element tripped/restored: 220KV Harsh Vihar ckt-II
3) Relay Annunciation: 86A, 86B, 50/51G.
4) Details of physically damaged equipment: none
5) Immediate corrective/system normalization steps performed: Load already running on 220KV Harsh Vihar- Preet Vihar ckt-I.
6) Any other relevant information: ckt remains charged from Harsh Vihar end.
Regards, Delhi SLDC |
20230109042452 | 2023/01/09 04:24:53 | 1) Name of the substation and Time: 220kv sgtn @ 3.54 am
2) Name of element tripped/restored: 220kv smb ckt-1 tripped on over voltage
3) Relay Annunciation: over coltage r ph,86
4) Details of physically damaged equipment: na
5) Immediate corrective/system normalization steps performed: 220kv b/c made on
6) Any other relevant information: na
Regards, Delhi SLDC |
20230108212624 | 2023/01/08 21:26:24 | 1) Name of the substation and Time: 220kV IP @20.57
2) Name of element tripped/restored: 100 MVA TR-1 CHARGED
3) Relay Annunciation: NA
4) Details of physically damaged equipment: NA
5) Immediate corrective/system normalization steps performed: NA
6) Any other relevant information: NA
Regards, Delhi SLDC |
20230108082603 | 2023/01/08 08:26:04 | 1) Name of the substation and Time: At 400kV Mundaka
2) Name of element tripped/restored: 400kV Bus-II Tripped @ 04:26Hrs. NO LOAD AFFECTED.
3) Relay Annunciation: LBB, VT Fail, TC-1 and 2, 395 Y phase (ICT-1)
4) Details of physically damaged equipment: NIL
5) Immediate corrective/system normalization steps performed: Load came on 400kV BUS-1.
6) Any other relevant information: ONE and HALF breaker scheme.
Regards, Delhi SLDC |
20230107171351 | 2023/01/07 17:13:52 | 1) Name of the substation and Time: At 15:22HRS
220KV IP
2) Name of element tripped/restored: Tripping of
1-100MVA-I with 33KV I/C-I
2-33KVI/C No-II
3) Relay Annunciation: 1-100MVA-I with 33KV I/C-I
Both HV and LV O/C and E/F
2-33KVI/C No-II
O/C and E/F
4) Details of physically damaged equipment: 1-33KV East Bus-II LA B and Y phase Damaged (02Nos LA)
2-B phase CB Pole damage of 33KV I/C-I
5) Immediate corrective/system normalization steps performed: At 15:55 HRS Load taken on 100MVA-III
16:20 HRS 33KV Bus-I Charged by 33KV I/C-II and system normalized
6) Any other relevant information: approx 70MW Load affected
Regards, Delhi SLDC |
20230107083553 | 2023/01/07 08:35:53 | 1) Name of the substation and Time: At 7:01 Hrs. CCGT BAWANA
2) Name of element tripped/restored: 400KV Bay#413 Bhadurgarh and Tie Bay#414(400KV Bhadurgarh-Bhiwani)
3) Relay Annunciation: Differential,R-Phase
4) Details of physically damaged equipment: R-Phase conductor snapped
5) Immediate corrective/system normalization steps performed: inform to NRLDC to put ON 400 KV Interconnector Bay#419 and 423
6) Any other relevant information: NA
Regards, Delhi SLDC |
20230105121802 | 2023/01/05 12:18:03 | 1) Name of the substation and Time: 220kv Kanjhawala
2) Name of element tripped/restored: 66kv I/c-1 and 3 tripped with Tripping of 66kV Karala-3 and RG-23 Ckt -1 @ 09:00 Hrs.
66kV I/c-3 restored@10.07 and I/c - 1 restored @ 10:30 Hrs. 66kV Karala-3 and RG-23 Ckt-1 is in Breakdown.
3) Relay Annunciation: O/C, E/F, 86
4) Details of physically damaged equipment: nil
5) Immediate corrective/system normalization steps performed: NA
6) Any other relevant information: NA
Regards, Delhi SLDC |
20230105094432 | 2023/01/05 09:44:33 | 1) Name of the substation and Time: 220kV RHN I, at 09:20 Hrs
2) Name of element tripped/restored: 66kV I/C-III and IV
3) Relay Annunciation: 66kV I/C-III- O/C, Prot. Opt, 86, O/C stage-I, O/C- Y pH
66kV I/C-IV- Any trip, O/C stage-I, O/C -Y and B Ph, 86
4) Details of physically damaged equipment: -
5) Immediate corrective/system normalization steps performed: Normalized system at 09:26 Hrs
6) Any other relevant information: Approx. load effected 170 MW
Regards, Delhi SLDC |
20230104232847 | 2023/01/04 23:28:48 | 1) Name of the substation and Time: 220kV Sabzi mandi, at 22:50 Hrs.
2) Name of element tripped/restored: 100 MVA Tx.-I
3) Relay Annunciation: Differential A, B C trip, Deiff. High speed trip, 30A- Buchholz relay, REF HV,REF LV,186
4) Details of physically damaged equipment: -
5) Immediate corrective/system normalization steps performed: -
6) Any other relevant information: Tx. tripped on no load
Regards, Delhi SLDC |
20230104154250 | 2023/01/04 15:42:51 | 1) Name of the substation and Time: 220KV Sabji Mandi, 15:20Hrs.
2) Name of element tripped/restored: 100MVA-I restored
3) Relay Annunciation: N/A
4) Details of physically damaged equipment: N/A
5) Immediate corrective/system normalization steps performed: N/A
6) Any other relevant information: 100MVA-I charged at no-load which was tripped off at 16:20Hrs. on 21.12.2022
Regards, Delhi SLDC |
20230104153923 | 2023/01/04 15:39:24 | 1) Name of the substation and Time: 220KV Sabji Mandi, 15:20Hrs.
2) Name of element tripped/restored: N/A
3) Relay Annunciation: N/A
4) Details of physically damaged equipment: N/A
5) Immediate corrective/system normalization steps performed: N/A
6) Any other relevant information: 100MVA-I charged at no-load which was tripped off at 16:20Hrs. on 21.12.2022
Regards, Delhi SLDC |
20230103054954 | 2023/01/03 05:49:55 | 1) Name of the substation and Time: Mehrauli
2) Name of element tripped/restored: At 01:22Hrs
100MVA T/F-2 and 160MVA T/F-4 tripped on 195.
Relay on 66KV I/C-2 and 66KV I/C-4 are O/C E/F Y-phase.
66KV C-Dot ckt-II also tripped on O/C E/F Y-phase(Blast observed in Y-phase CB pole).
Load affected was approx. 35MW.
Discoms were asked to shift their load.
At 04:05Hrs 160MVA T/F-4 charged.
3) Relay Annunciation: na
4) Details of physically damaged equipment: na
5) Immediate corrective/system normalization steps performed: na
6) Any other relevant information: na
Regards, Delhi SLDC |
20230102233945 | 2023/01/02 23:39:46 | 1) Name of the substation and Time: Maharani Bagh
2) Name of element tripped/restored: 220KV Maharani Bagh-Sarita Vihar ckt charged at 23:37Hrs.
3) Relay Annunciation: na
4) Details of physically damaged equipment: na
5) Immediate corrective/system normalization steps performed: na
6) Any other relevant information: na
Regards, Delhi SLDC |
20230102221748 | 2023/01/02 22:17:49 | 1) Name of the substation and Time: Maharani Bagh
2) Name of element tripped/restored: 220KV Maharani Bagh-Sarita Vihar ckt tripped at both end at 21:54Hrs.
Relay at Maharani Bagh end are Z-2 R-phase 9.3km Ir=13.3KA.
Relay at Sarita Vihar end are Z-1 R-phase 0.4km Ir=6.6KA.
No load was affected.
3) Relay Annunciation: na
4) Details of physically damaged equipment: na
5) Immediate corrective/system normalization steps performed: na
6) Any other relevant information: na
Regards, Delhi SLDC |
20230102062434 | 2023/01/02 06:24:35 | 1) Name of the substation and Time: At 06:18 HRS
220KV SGTN
2) Name of element tripped/restored: 220KV SMB-I Circuit breaker closed/energized
3) Relay Annunciation: -
4) Details of physically damaged equipment: -
5) Immediate corrective/system normalization steps performed: -
6) Any other relevant information: At 06:18 HRS
220KV SMB-I Circuit breaker closed/energized
System normal
Regards, Delhi SLDC |
20230102043004 | 2023/01/02 04:30:04 | 1) Name of the substation and Time: At 04:01 HRS
220KV SGTN
2) Name of element tripped/restored: 220KV SGTN-SMB ckt-I Only breaker trip
3) Relay Annunciation: 86A,B,86R2,Y2.B2,over voltage
4) Details of physically damaged equipment: -
5) Immediate corrective/system normalization steps performed: At 04:09 HRS\
220KV Buscoupler closed Load become normal
6) Any other relevant information: Approx 23MW Load efected
Regards, Delhi SLDC |
20230102014320 | 2023/01/02 01:43:21 | 1) Name of the substation and Time: At 01:16 HRS
220KV Maharani Bagh
2) Name of element tripped/restored: 220KV MBG-SVR CKT
3) Relay Annunciation: At SVR End -Y-phase trip Zone-I,Distance 8.86 KM Ia 165.3A,Ib 5.352 KA,Ic 92.18KA In 5.56KA,86
220KV MBG-end Y -ohase trip,Distance 8.3KM,L2E,IL1 0.0KA,IL2 15.19KA,IL3 0.0KA
4) Details of physically damaged equipment: -
5) Immediate corrective/system normalization steps performed: No Load effected
6) Any other relevant information: -
Regards, Delhi SLDC |
20221230130200 | 2022/12/30 13:02:01 | 1) Name of the substation and Time: At12:54 HRS
220KV Gazipur
2) Name of element tripped/restored: Corrigendum message regarding 66KV Vivek vihar ckt-II
3) Relay Annunciation: -
4) Details of physically damaged equipment: -
5) Immediate corrective/system normalization steps performed: -
6) Any other relevant information: Message recieved from grid Operation staff that fault found in Common Busbar jumper of 66KV Vivekvihar ckt-II.Earlier tripping message given by staff was not correct.
Regards, Delhi SLDC |
20221230113510 | 2022/12/30 11:35:10 | 1) Name of the substation and Time: At 10:25 HRS
220KV Gazipur
2) Name of element tripped/restored: Tripping of 66KV I/C-I,II and III
3) Relay Annunciation: 66KV I/C-I
No indication
66KV I/C-II
E/F,O/C,Y phase 86
66KV I/C-III
E/F,O/C,R,Y,B phase , Gen Trip 86
4) Details of physically damaged equipment: 66KV Vivek vihar-II cable caught fire and feeder didnot trip
5) Immediate corrective/system normalization steps performed: At 10:35 HRS
66KV I/C-I,II and III enegized sytem became normal
6) Any other relevant information: Load affected approx 60MW
Regards, Delhi SLDC |
20221229124455 | 2022/12/29 12:44:56 | 1) Name of the substation and Time: Gazipur
2) Name of element tripped/restored: At 11:57Hrs 66KV I/C-2, 66KV I/C-3 and 66KV B/C tripped on O/C Y-phase with the tripping of 66KV Patparganj Industrial Area ckt which tripped on distance relay Y-phase 1km. Grid staff have reported blast in R and Y-phase CB Pole of 66KV Patparganj Ind. Area.
Load affected was 65MW.
At 12:13Hrs 66KV I/C-2 and 66KV I/C-3 charged.
3) Relay Annunciation: na
4) Details of physically damaged equipment: na
5) Immediate corrective/system normalization steps performed: na
6) Any other relevant information: na
Regards, Delhi SLDC |
20221228091713 | 2022/12/28 09:17:14 | 1) Name of the substation and Time: At 07:39 HRS
At 220KV TUGLAKABAD
2) Name of element tripped/restored: 160MVA-II with 66KV I/C -II tripped
3) Relay Annunciation: 160MVA-II
PRV Trip,Gen Trip
66KV I/C-II
3 phase initiate fault,E/F stage-3
4) Details of physically damaged equipment: -
5) Immediate corrective/system normalization steps performed: No Load effected
Message conveyed
at 09:03 HRS from TUGB Staff
6) Any other relevant information: -
Regards, Delhi SLDC |
20221228030205 | 2022/12/28 03:02:05 | 1) Name of the substation and Time: At 02:58 HRS
220KV Ridge valley
2) Name of element tripped/restored: 160MVA-Tx-No-II Energised
3) Relay Annunciation: -
4) Details of physically damaged equipment: -
5) Immediate corrective/system normalization steps performed: -
6) Any other relevant information: 160MVA-Tx-No-II Energised
Ridge valley S/Stn is Normalised
Regards, Delhi SLDC |
20221228024909 | 2022/12/28 02:49:10 | 1) Name of the substation and Time: At 02:43 HRS
220KV Ridge Valley
2) Name of element tripped/restored: 220KV R/V-NRN Circuit
3) Relay Annunciation: -
4) Details of physically damaged equipment: -
5) Immediate corrective/system normalization steps performed: -
6) Any other relevant information: 220KV Circuit Breaker of Naraina CKT closed at Ridge valley
160MVA-II is already tripped on OLTC Buchholz
Regards, Delhi SLDC |
20221228022435 | 2022/12/28 02:24:36 | 1) Name of the substation and Time: At 01:14 HRS
220KV Tuglakabad
2) Name of element tripped/restored: 220KV TUGB-RKP-CKT-I Tripped(TUGB-RKP-CKT-II was already off due to High voltage at 23:27 HRs Dated 27.12.2022)
220KV Ridge valley Supply failed
220KV Circuit Breaker of Naraian ckt tripped
86 A,B
160MVA TX-No-II tripped
without indication
220KV naraina half Bus supply failed
3) Relay Annunciation: At Tuglakabad
R phase to neatral Zone-I,Distance 0 KM,If -R phase 14.97KA
4) Details of physically damaged equipment: -
5) Immediate corrective/system normalization steps performed: At 01:20 HRS
220KV Half Bus Of Naraina S/stn normalised through 220KV Bus coupler through 220KV Dwarka ckt I and II
At 01:29 HRS
220KV RKP-TUGB CKT-II energised
At 01:30HRS
220KV Ridgevalley substattion normalised throgh RKP-CKT-I
6) Any other relevant information: Approx Load effected 88MW
Regards, Delhi SLDC |
20221227124924 | 2022/12/27 12:49:25 | 1) Name of the substation and Time: 220KV Sabzi Mandi, 12:40Hrs.
2) Name of element tripped/restored: 100MVA-II along with 33KV I/C-II restored
3) Relay Annunciation: N/A
4) Details of physically damaged equipment: N/A
5) Immediate corrective/system normalization steps performed: N/A
6) Any other relevant information: N/A
Regards, Delhi SLDC |
20221227124052 | 2022/12/27 12:40:52 | 1) Name of the substation and Time: 220KV Sabzimandi, 12:20Hrs.
2) Name of element tripped/restored: 100MVA-II along with 33KV I/C-II tripped
3) Relay Annunciation: HV CB open and LV CB open on 100MVA-II and no indication showing on 33KV I/C-II
4) Details of physically damaged equipment: N/A
5) Immediate corrective/system normalization steps performed: N/A
6) Any other relevant information: Total load effected - 58MW, 100MVA-I along with 33KV I/C-I is already under shutdown.
Regards, Delhi SLDC |
20221226163302 | 2022/12/26 16:33:03 | 1) Name of the substation and Time: 220KV Sabzi Mandi, 16:20Hrs.
2) Name of element tripped/restored: 100MVA-II along with 33KV I/C-II
3) Relay Annunciation: HV CB open and LV CB open on 100MVA-II and no indication on 33KV I/C-II
4) Details of physically damaged equipment: N/A
5) Immediate corrective/system normalization steps performed: N/A
6) Any other relevant information: Total load effected - 49MW, 100MVA-I along with 33KV I/C-I is already under shutdown.
Regards, Delhi SLDC |
20221226093020 | 2022/12/26 09:30:21 | 1) Name of the substation and Time: 220kv Mehrauli @ 09:22 Hrs
2) Name of element tripped/restored: Tx 1 and # Normal/ Restored.
3) Relay Annunciation: na
4) Details of physically damaged equipment: na
5) Immediate corrective/system normalization steps performed: na
6) Any other relevant information: na
Regards, Delhi SLDC |
20221226092306 | 2022/12/26 09:23:07 | 1) Name of the substation and Time: 220kV Mehrauli @ 09:05 Hrs
2) Name of element tripped/restored: 100MVA Tx 1 and 3 Tripped
3) Relay Annunciation: O/C, B-ph on 66kV I/c-1, Incomer-3 Tripped with Incomer-1, Both Tx were parallel.
4) Details of physically damaged equipment: NA
5) Immediate corrective/system normalization steps performed: Load shifted to nearby Grids and Txs are being done normal at Mehrauli.
6) Any other relevant information: Approx Load on both Tx was 180MW. Before Tripping DISCOM was requested to reduce the Load immediately.
Regards, Delhi SLDC |
20221225155230 | 2022/12/25 15:52:31 | 1) Name of the substation and Time: At220 KV Gopalpur (15:06hrs)
2) Name of element tripped/restored: 220 KV Mandola-I
3) Relay Annunciation: Tripped without Indication at Gopal pur end. Tripped on R and Y Phase, 9.8 KA at Mandola End.
4) Details of physically damaged equipment: NONE
5) Immediate corrective/system normalization steps performed: 220 KB B/C put On at Gopalpur.
6) Any other relevant information: NIL
Regards, Delhi SLDC |
20221224070456 | 2022/12/24 07:04:57 | 1) Name of the substation and Time: 220KV Patparganj, 07:00Hrs.
2) Name of element tripped/restored: 33KV I/C-II restored
3) Relay Annunciation: N/A
4) Details of physically damaged equipment: N/A
5) Immediate corrective/system normalization steps performed: N/A
6) Any other relevant information: N/A
Regards, Delhi SLDC |
20221224070231 | 2022/12/24 07:02:32 | 1) Name of the substation and Time: 220KV Patparganj, 06:28Hrs.
2) Name of element tripped/restored: 33KV I/C-I restored
3) Relay Annunciation: N/A
4) Details of physically damaged equipment: N/A
5) Immediate corrective/system normalization steps performed: N/A
6) Any other relevant information: N/A
Regards, Delhi SLDC |
20221224065640 | 2022/12/24 06:56:41 | 1) Name of the substation and Time: 220KV Patparganj, 06:01Hrs.
2) Name of element tripped/restored: 33KV I/C-I, 33KV I/C-II and 33KV Karkardooma-I
3) Relay Annunciation: Any Trip and E/F Stage-1 on 33KV I/C-I, Second Hormony Block on 33 I/C-II and Any Trip, Zone-2, RYB Phase Trip, E/F Stage-1 and O/C Stage-1 on 33KV Karkardooma-I
4) Details of physically damaged equipment: R-Phase CT of 33KV Karkardooma-I
5) Immediate corrective/system normalization steps performed: N/A
6) Any other relevant information: Total load effected - 22MW
Regards, Delhi SLDC |
20221223045201 | 2022/12/23 04:52:02 | 1) Name of the substation and Time: 220kV Lodhi Road @ 4:12 Hrs
2) Name of element tripped/restored: CB of 220kv M. Bagh Ckt-1 Tripped. Line remained charged.
3) Relay Annunciation: Dist Prot. B- Phase,
4) Details of physically damaged equipment: nil
5) Immediate corrective/system normalization steps performed: 220kV Bus Coupler Put ON after Yard checked.
6) Any other relevant information: Line remained charged from M. Bagh End. Only CB Tripped at Loadhi Road.
Regards, Delhi SLDC |
20221223044503 | 2022/12/23 04:45:03 | 1) Name of the substation and Time: 220kv sarita vihar @ 4:12 Hrs
2) Name of element tripped/restored: 220kv Sarita Vihar- Pragati Tripped
3) Relay Annunciation: Z-1, Y phase, 2.872km, 8.471kA
4) Details of physically damaged equipment: nil
5) Immediate corrective/system normalization steps performed: clearance requested.
6) Any other relevant information: nil
Regards, Delhi SLDC |
20221222121759 | 2022/12/22 12:17:59 | 1) Name of the substation and Time: 400kV Bawana, at 09:54 Hrs
2) Name of element tripped/restored: 220kV Bus- Bar operated with 220kV I/C- I of 315 MVA tx. -I tripped, 220 kV RHN I Ckt-I and 220 KV SMB -I,
3) Relay Annunciation: 220kV Bus- Bar operated
4) Details of physically damaged equipment: -
5) Immediate corrective/system normalization steps performed: 09:58 Hrs, 220 kV B/C put on and normalized
6) Any other relevant information: -Approx. load effected -200 MW for 4 minuts only
Regards, Delhi SLDC |
20221221164619 | 2022/12/21 16:46:20 | 1) Name of the substation and Time: 220kv Sabji Mandi @ 16:20 Hrs
2) Name of element tripped/restored: 100MVA Tx 1 Tripped
3) Relay Annunciation: Diff ABC, HV REF, 95, 186
4) Details of physically damaged equipment: NIL
5) Immediate corrective/system normalization steps performed: Load Normal through 33kV Buscoupler @ 16:35 Hrs
6) Any other relevant information: 33MW Load affected
Regards, Delhi SLDC |
20221221055749 | 2022/12/21 05:57:49 | 1) Name of the substation and Time: 220kv svr@5.51
2) Name of element tripped/restored: 220kv pragati restored
3) Relay Annunciation: na
4) Details of physically damaged equipment: na
5) Immediate corrective/system normalization steps performed: na
6) Any other relevant information: na
Regards, Delhi SLDC |
20221221054033 | 2022/12/21 05:40:33 | 1) Name of the substation and Time: 220kv mbagh @5.33
2) Name of element tripped/restored: 220kv saritavihar line restored
3) Relay Annunciation: na
4) Details of physically damaged equipment: na
5) Immediate corrective/system normalization steps performed: na
6) Any other relevant information: na
Regards, Delhi SLDC |
20221221053934 | 2022/12/21 05:39:35 | 1) Name of the substation and Time: 220kv tuglakabad @5.26
2) Name of element tripped/restored: 220kv mehroli restroed
3) Relay Annunciation: na
4) Details of physically damaged equipment: na
5) Immediate corrective/system normalization steps performed: na
6) Any other relevant information: na
Regards, Delhi SLDC |
20221221034628 | 2022/12/21 03:46:29 | 1) Name of the substation and Time: 400KV Bamnauli, 03:41Hrs.
2) Name of element tripped/restored: 400KV Tughlakabad-I
3) Relay Annunciation: Restored
4) Details of physically damaged equipment: N/A
5) Immediate corrective/system normalization steps performed: N/A
6) Any other relevant information: N/A
Regards, Delhi SLDC |
20221221034237 | 2022/12/21 03:42:38 | 1) Name of the substation and Time: 400KV Bawana, 03:19Hrs.
2) Name of element tripped/restored: 400KV Maharani Bagh-II
3) Relay Annunciation: Zone-1, Fault Location - 17.32m
4) Details of physically damaged equipment: N/A
5) Immediate corrective/system normalization steps performed: N/A
6) Any other relevant information: N/A
Regards, Delhi SLDC |
20221221025931 | 2022/12/21 02:59:32 | 1) Name of the substation and Time: 400KV Bamnauli, 02:38Hrs.
2) Name of element tripped/restored: 400KV Tughlakabad-I
3) Relay Annunciation: Zone-1, B-Phase, Fault Location - 5.413Km and Fault Current, B-Phase - 17.39KA
4) Details of physically damaged equipment: N/A
5) Immediate corrective/system normalization steps performed: N/A
6) Any other relevant information: N/A
Regards, Delhi SLDC |
20221221023742 | 2022/12/21 02:37:42 | 1) Name of the substation and Time: 220KV GEETA COLONY @02.34
2) Name of element tripped/restored: 33 KV I/C -1
3) Relay Annunciation: NA
4) Details of physically damaged equipment: NA
5) Immediate corrective/system normalization steps performed: NA
6) Any other relevant information: NA
Regards, Delhi SLDC |
20221221022840 | 2022/12/21 02:28:41 | 1) Name of the substation and Time: 220KV GEETACOLNY @ 02.10 HR
2) Name of element tripped/restored: 33 KV I/C -1 ALONG WITH 33 KV KAILASH NAGAR CKT-1
3) Relay Annunciation: 30CB AUTO TRIP, 86,OC,
30 CB AUTO TRIP,OC START,Z1
4) Details of physically damaged equipment: NA
5) Immediate corrective/system normalization steps performed: NA
6) Any other relevant information: 33 KV B/C CLOSED @ 02.11 AND LOAD NORMAL
Regards, Delhi SLDC |
20221221022612 | 2022/12/21 02:26:13 | 1) Name of the substation and Time: 220kv tuglakabad @ 02.06 hrs
2) Name of element tripped/restored: 220kv mehrouli-ckt-2
3) Relay Annunciation: z1,falut location 4km,r ph trip, fault current 22.08 kA
4) Details of physically damaged equipment: NA
5) Immediate corrective/system normalization steps performed: NA
6) Any other relevant information: NA
Regards, Delhi SLDC |
20221221020050 | 2022/12/21 02:00:51 | 1) Name of the substation and Time: 220 kv btps @01.29 hrs
2) Name of element tripped/restored: 220kv Tuglakbad ckt-1
3) Relay Annunciation: z1,y ph,falut location 0.76 km
4) Details of physically damaged equipment: na
5) Immediate corrective/system normalization steps performed: na
6) Any other relevant information: ckt tripped both ends
Regards, Delhi SLDC |
20221221013031 | 2022/12/21 01:30:32 | 1) Name of the substation and Time: 220KV Maharani Bagh, 01:07Hrs.
2) Name of element tripped/restored: 220KV Sarita Vihar
3) Relay Annunciation: Fault Location - 7.2Km, Faulty Phase - R-Phase, Fault Phase, R-Phase - 15.44Km, Z-1, Z-2 and Z-3 opearted.
4) Details of physically damaged equipment: N/A
5) Immediate corrective/system normalization steps performed: N/A
6) Any other relevant information: N/A
Regards, Delhi SLDC |
20221221011902 | 2022/12/21 01:19:03 | 1) Name of the substation and Time: 220KV Sarita Vihar, 00:46Hrs.
2) Name of element tripped/restored: 220KV Pragati
3) Relay Annunciation: 86X, 186, Distance Protection Zone-1, Active Group-1, Fault Phase - Y-Phase, Fault Location - 7.901Km and Fault Current, Y-Phase - 11.05KA at Sarita Vihar end and 86A, 86B, 86C, 180A, 180B, Distance Protection Zone-1, 195CC, Fault Phase - Y-Phase, Fault Location - 5.091Km and Fault Current, Y-Phase - 7.215KA at Pragati end.
4) Details of physically damaged equipment: N/A
5) Immediate corrective/system normalization steps performed: N/A
6) Any other relevant information: N?A
Regards, Delhi SLDC |
20221220170533 | 2022/12/20 17:05:34 | 1) Name of the substation and Time: 400kv bml@16.58
2) Name of element tripped/restored: 220kv ppk-1 ckt-2 restored
3) Relay Annunciation: na
4) Details of physically damaged equipment: na
5) Immediate corrective/system normalization steps performed: na
6) Any other relevant information: na
Regards, Delhi SLDC |
20221220092512 | 2022/12/20 09:25:13 | 1) Name of the substation and Time: At 05:27 HRS
220KV Gopalpur
2) Name of element tripped/restored: 220KV mandola-I tripped at gopalpur end only
3) Relay Annunciation: Zone-I,b phase,R,Y,b ph,F/L 3.168KM
4) Details of physically damaged equipment: -
5) Immediate corrective/system normalization steps performed: At 05:30HRS
220KV Buscoupler closed and sytem normalised
6) Any other relevant information: approx 48MW effected
Regards, Delhi SLDC |
20221220091712 | 2022/12/20 09:17:13 | 1) Name of the substation and Time: At 06:48 HRS
400KV Mundka
2) Name of element tripped/restored: 400KV Jhajjar-I tripped
3) Relay Annunciation: R-Phase,zone-I,Protection -I,86
4) Details of physically damaged equipment: -
5) Immediate corrective/system normalization steps performed: -
6) Any other relevant information: At 08:48 HrS
400KV jhajjar-I charged but didnot hold
Regards, Delhi SLDC |
20221220091232 | 2022/12/20 09:12:33 | 1) Name of the substation and Time: At 05:30HRS
400KV Bawana
2) Name of element tripped/restored: 400KV MBG-II tripped at Bawana end only
3) Relay Annunciation: R,Y,B Ph trip,zone-I,F/L 09.384KM
4) Details of physically damaged equipment: -
5) Immediate corrective/system normalization steps performed: -
6) Any other relevant information: AT 06:30Hrs
400KV MBG-II charged system normal
Regards, Delhi SLDC |
20221220090844 | 2022/12/20 09:08:45 | 1) Name of the substation and Time: At 05:06 HRS
400KV MBG
2) Name of element tripped/restored: 220KV SVR CKT tripped
3) Relay Annunciation: Y ph,L2-E,Ia 0KA,Ib 18.81KA,Ic 0KA
4) Details of physically damaged equipment: -
5) Immediate corrective/system normalization steps performed: At 05:34 Hrs Tried held Ok and tripped at 05:45 HRS
6) Any other relevant information: -
Regards, Delhi SLDC |
20221220090513 | 2022/12/20 09:05:13 | 1) Name of the substation and Time: At 04:08 HRS and 05:08 HRS
220KV TUGB
2) Name of element tripped/restored: 220MLI-II at 04:08 HRS and 220KV Okhla-I at 05:08 HRS tripped
3) Relay Annunciation: relay MLI-II
Zone-I and II y,B Ph F/L 6.4KM If 18.585KA
Relay 220KV Okhla ckt-I
R ph,zone-I,F/L 0.5KM,Ir 29.043KA
4) Details of physically damaged equipment: -
5) Immediate corrective/system normalization steps performed: At 05:28 HRS 220KV Vasant kunj ckt-II energised and load of Mehrauli grid normalised
6) Any other relevant information: -
Regards, Delhi SLDC |
20221220085237 | 2022/12/20 08:52:38 | 1) Name of the substation and Time: At 05:13 HRS
220KV PPG
2) Name of element tripped/restored: 33KV I/C-I,220KV Busbar,220KV Geeta colony I and II,IP -I and II Tripped
3) Relay Annunciation: Relay I/C-Relay
y,B ph O/c
Relay Busbar
Zone-II
4) Details of physically damaged equipment: -
5) Immediate corrective/system normalization steps performed: At 05:44 Hrs at 220KV Pragati 220KV Buscoupler closed,geeta colony i and II ,IP-I charged
6) Any other relevant information: Load effected approx 28MW
Regards, Delhi SLDC |
20221220083436 | 2022/12/20 08:34:37 | 1) Name of the substation and Time: At 05:10 HRS
220KV SVR
2) Name of element tripped/restored: 220KV Pragati ckt tripped
3) Relay Annunciation: Zone-I,Y-ph,Distance 5.06KM,Ia146.5A,Ib7.092KA,Ic1.145KA
Relay Pragati
zone-I,F/L 7.0948KM
4) Details of physically damaged equipment: -
5) Immediate corrective/system normalization steps performed: -
6) Any other relevant information: No load affected
Regards, Delhi SLDC |
20221220081358 | 2022/12/20 08:13:59 | 1) Name of the substation and Time: At 08:08 hrs 220 KV I.P.S/stn
2) Name of element tripped/restored: 220 KV Patparganj ckt-II Charged at 08:08 Hrs
3) Relay Annunciation: -
4) Details of physically damaged equipment: --
5) Immediate corrective/system normalization steps performed: -
6) Any other relevant information: -
Regards, Delhi SLDC |
20221220063049 | 2022/12/20 06:30:50 | 1) Name of the substation and Time: At 05:27 HRS
220KV Gopalpur
2) Name of element tripped/restored: 220KV Mandola -I tripped
3) Relay Annunciation: Zone-I,B phase trip,R,Y,B phase F/L 3.168mm,Ia1.115KA,Ib 1.374KA,Ic1.302KA,In 3.787KA
4) Details of physically damaged equipment: -
5) Immediate corrective/system normalization steps performed: At 05:30 HRS 220KV Buscoupler closed LOad normalised
6) Any other relevant information: approx load affected 48 MW
Regards, Delhi SLDC |
20221220043111 | 2022/12/20 04:31:11 | 1) Name of the substation and Time: 220kV Gopal Pur, at 04:05 Hrs
2) Name of element tripped/restored: 220kV Mandola Ckt-I
3) Relay Annunciation: Y-Ph trip,Ia-1.5KA,Ib-1.45KA,Ic-1.31KA, In -4.217KA, Distance-09M,
4) Details of physically damaged equipment: _
5) Immediate corrective/system normalization steps performed: 220kV Bus-coupler put on at 4:08 Hrs,
6) Any other relevant information: Approx. load effected- 44 MW, and system is normalized at 4:08 Hrs,
Regards, Delhi SLDC |
20221220035625 | 2022/12/20 03:56:26 | 1) Name of the substation and Time: At 03:19 HRS
400KV Bamnauli
2) Name of element tripped/restored: 220KV PPK-II ckt-I tripped
3) Relay Annunciation: Realay Bamnauli
Y-phase zone -I,2.885KM,If 14.93KA
Realy PPK-II
D/P-II,Y-phase,MI operated,Distance inter trip,Bn zone-I,3.8KM
4) Details of physically damaged equipment: -
5) Immediate corrective/system normalization steps performed: -
6) Any other relevant information: No load effected
Regards, Delhi SLDC |
20221220035151 | 2022/12/20 03:51:51 | 1) Name of the substation and Time: At 03;10 HRS
400KV Bamnauli
2) Name of element tripped/restored: 220 PPK-I ckt-I tripped at 03:10 HRS
220KV PPK-I ckt-II tripped at 03:13 HRS
3) Relay Annunciation: PPK-I Ckt-IY-PHASE ,ZONE-II,6.959km,If 12.97ka
220KV PPK-I ckt-II
Trip B ph,zone-I,6.424 KM,If 12.7KA
4) Details of physically damaged equipment: -
5) Immediate corrective/system normalization steps performed: -
6) Any other relevant information: No loas affected
Regards, Delhi SLDC |
20221220034625 | 2022/12/20 03:46:26 | 1) Name of the substation and Time: At 02:32 HRS
400KV Munka
2) Name of element tripped/restored: 400KV Jhajjar-II tripped
3) Relay Annunciation: Relay Zone-I,D/P Y-phase both end tripping
4) Details of physically damaged equipment: -
5) Immediate corrective/system normalization steps performed: -
6) Any other relevant information: -
Regards, Delhi SLDC |
20221220034120 | 2022/12/20 03:41:20 | 1) Name of the substation and Time: At 03:22 HRS
400KV Dwarka
2) Name of element tripped/restored: 220KV Naraiana ckt-II
tripped
3) Relay Annunciation: Relay Dwaeka
Distance zone-I F/L 1.5KM,Fault stage -A,If 23052.482A
Naraiana
Autoreclosw R-Phase trip,D/P 5KM,86
4) Details of physically damaged equipment: -
5) Immediate corrective/system normalization steps performed: -
6) Any other relevant information: No load effected
Regards, Delhi SLDC |
20221220012141 | 2022/12/20 01:21:41 | 1) Name of the substation and Time: At 00.28 HRS
220KV Narela
2) Name of element tripped/restored: 220KV Panipat-I,Panipat-II and Panipat-III Tripped
3) Relay Annunciation: Relay Panipat -I
A,B,C pHASE,.ZONE-II,F/D-496.7 msec,F/L-98.98KM Ia 50.98Amp,Ib 20.10A,Ic 54.46A,86
Relay Panipat -II
A,B,C pHASE,F/D-528.4msec,F/L-66.64KM Ia 313.4Amp,Ib 338.8A,Ic 362.9A,86
Relay Panipat -III
A,B,C SOTF,86
4) Details of physically damaged equipment: -
5) Immediate corrective/system normalization steps performed: At 00:53 HRS
220KV Buscoupler made ON and load taken of BBMB Rohtak road I and II and BBMB Tranformer taken from 220KV Mandola ckt-I and II
6) Any other relevant information: Load affected approx 63MW
Regards, Delhi SLDC |
20221219195815 | 2022/12/19 19:58:16 | 1) Name of the substation and Time: AT 18:12 HRS
400KV Mundka
2) Name of element tripped/restored: 40KV Jhajjar-II charged at 18:12 HRS
3) Relay Annunciation: -
4) Details of physically damaged equipment: -
5) Immediate corrective/system normalization steps performed: -
6) Any other relevant information: -
Regards, Delhi SLDC |
20221219195639 | 2022/12/19 19:56:40 | 1) Name of the substation and Time: At 18:50 HRS
220 KV Kanjhawala
2) Name of element tripped/restored: 220KV Mundka ckt Charged at 18:50 HRS
3) Relay Annunciation: -
4) Details of physically damaged equipment: -
5) Immediate corrective/system normalization steps performed: -
6) Any other relevant information: -
Regards, Delhi SLDC |
20221219170311 | 2022/12/19 17:03:12 | 1) Name of the substation and Time: 220KV NARELA @16.47
2) Name of element tripped/restored: 220KV DSIDC BAWANA CKT-2 RESTORED
3) Relay Annunciation: NA
4) Details of physically damaged equipment: NA
5) Immediate corrective/system normalization steps performed: NA
6) Any other relevant information: NA
Regards, Delhi SLDC |
20221219170043 | 2022/12/19 17:00:44 | 1) Name of the substation and Time: 400KV BAWANA @16.49
2) Name of element tripped/restored: 220KV SMB -CKT-1
RESTORED
3) Relay Annunciation: NA
4) Details of physically damaged equipment: NA
5) Immediate corrective/system normalization steps performed: NA
6) Any other relevant information: NA
Regards, Delhi SLDC |
20221219165419 | 2022/12/19 16:54:20 | 1) Name of the substation and Time: 400 kv BAWANA @ 15.30
2) Name of element tripped/restored: 315 ICT -5
RESTORED
3) Relay Annunciation: NA
4) Details of physically damaged equipment: NA
5) Immediate corrective/system normalization steps performed: NA
6) Any other relevant information: NA
Regards, Delhi SLDC |
20221219164451 | 2022/12/19 16:44:52 | 1) Name of the substation and Time: 220kv rohini @16:41
2) Name of element tripped/restored: 220kv smb -2 restored
3) Relay Annunciation: na
4) Details of physically damaged equipment: na
5) Immediate corrective/system normalization steps performed: na
6) Any other relevant information: na
Regards, Delhi SLDC |
20221219151633 | 2022/12/19 15:16:34 | 1) Name of the substation and Time: 400kb bml @15.14
2) Name of element tripped/restored: 220kv ppk-1 ckt-2 restored
3) Relay Annunciation: na
4) Details of physically damaged equipment: na
5) Immediate corrective/system normalization steps performed: na
6) Any other relevant information: na
Regards, Delhi SLDC |
20221219131936 | 2022/12/19 13:19:36 | 1) Name of the substation and Time: 220KV SMB @13.16
2) Name of element tripped/restored: 220KV SGTN CKT-1 RESTORED
3) Relay Annunciation: NA
4) Details of physically damaged equipment: NA
5) Immediate corrective/system normalization steps performed: NA
6) Any other relevant information: NA
Regards, Delhi SLDC |
20221219124503 | 2022/12/19 12:45:03 | 1) Name of the substation and Time: 220KV SOW @12.40
2) Name of element tripped/restored: 220KV MANDOLA CKT 2
RESTORED
3) Relay Annunciation: NA
4) Details of physically damaged equipment: NA
5) Immediate corrective/system normalization steps performed: NA
6) Any other relevant information: NA
Regards, Delhi SLDC |
20221219123150 | 2022/12/19 12:31:51 | 1) Name of the substation and Time: 220 kv DSIDC BAWANA @12.28
2) Name of element tripped/restored: 220KV BAWAN CKT-2 RESTORED
3) Relay Annunciation: NA
4) Details of physically damaged equipment: NA
5) Immediate corrective/system normalization steps performed: NA
6) Any other relevant information: NA
Regards, Delhi SLDC |
20221219121730 | 2022/12/19 12:17:31 | 1) Name of the substation and Time: 220kv gopal pur @12.12
2) Name of element tripped/restored: 220kv mandola ckt-1 restored
3) Relay Annunciation: na
4) Details of physically damaged equipment: na
5) Immediate corrective/system normalization steps performed: na
6) Any other relevant information: na
Regards, Delhi SLDC |
20221219115015 | 2022/12/19 11:50:16 | 1) Name of the substation and Time: 400kv bawana @11.40
2) Name of element tripped/restored: 220kv knj ckt 1 and 2 restored
3) Relay Annunciation: na
4) Details of physically damaged equipment: na
5) Immediate corrective/system normalization steps performed: na
6) Any other relevant information: na
Regards, Delhi SLDC |
20221219113014 | 2022/12/19 11:30:15 | 1) Name of the substation and Time: 220KV Mehrauli, 11:22Hrs.
2) Name of element tripped/restored: 220KV Tughlakabad-II restored
3) Relay Annunciation: N/A
4) Details of physically damaged equipment: N/A
5) Immediate corrective/system normalization steps performed: N/A
6) Any other relevant information: N/A
Regards, Delhi SLDC |
20221219110653 | 2022/12/19 11:06:54 | 1) Name of the substation and Time: 220kV Shalimarbagh 11:03Hrs
2) Name of element tripped/restored: Wazirpur ckt-2 restored
3) Relay Annunciation: NIL
4) Details of physically damaged equipment: NIL
5) Immediate corrective/system normalization steps performed: NIL
6) Any other relevant information: NIL
Regards, Delhi SLDC |
20221219110400 | 2022/12/19 11:04:01 | 1) Name of the substation and Time: 220kV SOW 10:29Hrs
2) Name of element tripped/restored: Kashmiri gate ckt 1 charged
3) Relay Annunciation: NIL
4) Details of physically damaged equipment: NIL
5) Immediate corrective/system normalization steps performed: NIL
6) Any other relevant information: NIL
Regards, Delhi SLDC |
20221219110047 | 2022/12/19 11:00:48 | 1) Name of the substation and Time: 220kV Salimarbagh Rohini ckt-1 10:35Hrs
2) Name of element tripped/restored: 220kV Rihini ckt1 restored
3) Relay Annunciation: NIL
4) Details of physically damaged equipment: NIL
5) Immediate corrective/system normalization steps performed: NIL
6) Any other relevant information: NIL
Regards, Delhi SLDC |
20221219074645 | 2022/12/19 07:46:46 | 1) Name of the substation and Time: At 4;44 Hrs.
400 KV Bamnauli
2) Name of element tripped/restored: 220KV PPK-1 Ckt-2
3) Relay Annunciation: R-Phase
Z-1
4) Details of physically damaged equipment: NA
5) Immediate corrective/system normalization steps performed: CKT was on NO Load
6) Any other relevant information: na
Regards, Delhi SLDC |
20221219074104 | 2022/12/19 07:41:05 | 1) Name of the substation and Time: At 5:08
220KV Kanjhawala
2) Name of element tripped/restored: 220KV Mundka Ckt 1 n 2
3) Relay Annunciation: Z-1
Dist.Prot.
Y-Phase
4) Details of physically damaged equipment: na
5) Immediate corrective/system normalization steps performed: Load taken on 220KV Najafgarh
6) Any other relevant information: load normalized
Regards, Delhi SLDC |
20221219073513 | 2022/12/19 07:35:14 | 1) Name of the substation and Time: At 04:03
220KV Tuglakabad
2) Name of element tripped/restored: 220 KV Mehrauli Ckt-2
3) Relay Annunciation: R-Phase
Dist.Prot
4) Details of physically damaged equipment: na
5) Immediate corrective/system normalization steps performed: 220 kv B/C made on
6) Any other relevant information: na
Regards, Delhi SLDC |
20221219020719 | 2022/12/19 02:07:20 | 1) Name of the substation and Time: AT 220KV WAZIRABAD(01:07HRS)
2) Name of element tripped/restored: 220KV KASHMERE GATE-1
3) Relay Annunciation: Y PHASE, D/P , ZONE-1, 1.157KM
4) Details of physically damaged equipment: NONE.
5) Immediate corrective/system normalization steps performed: 220KV B/C PUT ON AT KASHMERE GATE.
6) Any other relevant information: NO TRIPPING FROM KASHMERE GATE.
Regards, Delhi SLDC |
20221219020424 | 2022/12/19 02:04:25 | 1) Name of the substation and Time: AT NARELA(00:55HRS)
2) Name of element tripped/restored: 220KV DSIIDC CKT-II
3) Relay Annunciation: C PHASE, D/P, ZONE-1
4) Details of physically damaged equipment: NONE.
5) Immediate corrective/system normalization steps performed: NO LOAD AFFECTED
6) Any other relevant information: LINE WAS CHARGED ON NO LOAD.
Regards, Delhi SLDC |
20221219020120 | 2022/12/19 02:01:21 | 1) Name of the substation and Time: AT 220kv GOPALPUR(00:52HRS)
2) Name of element tripped/restored: 220KV MANDOLA-1
3) Relay Annunciation: Y PHASE, ZONE-1
4) Details of physically damaged equipment: NONE.
5) Immediate corrective/system normalization steps performed: 220KV B/C PUT ON AT GOPALPUR, LOAD NORMALIZED.
6) Any other relevant information: NONE.
Regards, Delhi SLDC |
20221219005738 | 2022/12/19 00:57:38 | 1) Name of the substation and Time: AT ROHINI-1(00:53HRS)
2) Name of element tripped/restored: 220KV BAWANA-II
3) Relay Annunciation: R PHASE, D/P.
4) Details of physically damaged equipment: NONE.
5) Immediate corrective/system normalization steps performed: 220KV B/C PUT ON.
6) Any other relevant information: NONE.
Regards, Delhi SLDC |
20221219004559 | 2022/12/19 00:46:00 | 1) Name of the substation and Time: AT ROHINI-1(23:48HRS)
2) Name of element tripped/restored: 220KV BAWANA-II
3) Relay Annunciation: R PHASE, D/P, 8.609KM
4) Details of physically damaged equipment: NONE.
5) Immediate corrective/system normalization steps performed: 220KV B/C PUT ON AT ROHINI-1.
6) Any other relevant information: NONE.
Regards, Delhi SLDC |
20221219004047 | 2022/12/19 00:40:48 | 1) Name of the substation and Time: AT KASHMERE GATE(00:23HRS)
2) Name of element tripped/restored: 220KV WAZIRABAD-1
3) Relay Annunciation: B PHASE TRIP, ZONE-1
4) Details of physically damaged equipment: NONE
5) Immediate corrective/system normalization steps performed: 220KV B/C PUT ON.
6) Any other relevant information: NONE.
Regards, Delhi SLDC |
20221219003322 | 2022/12/19 00:33:24 | 1) Name of the substation and Time: AT KASHMERE GATE(00:23HRS)
2) Name of element tripped/restored: 220KV WAZIRABAD-1
3) Relay Annunciation: B PHASE TRIP, ZONE-1
4) Details of physically damaged equipment: NONE
5) Immediate corrective/system normalization steps performed: 220KV B/C PUT ON.
6) Any other relevant information: NONE.
Regards, Delhi SLDC |
20221219002942 | 2022/12/19 00:29:43 | 1) Name of the substation and Time: 220 KV Kashmirigate(23:52 HRS)
2) Name of element tripped/restored: 220 KV WAZIRABAD CKT-1
3) Relay Annunciation: B PHASE TRIP, ZONE-1
4) Details of physically damaged equipment: NONE
5) Immediate corrective/system normalization steps performed: 220KV B/C PUT ON AND LOAD NORMALIZED.
6) Any other relevant information: NONE.
Regards, Delhi SLDC |
20221215091320 | 2022/12/15 09:13:21 | 1) Name of the substation and Time: at 220kv Paretstreet and Pragati
2) Name of element tripped/restored: All System normal at Parkstreet and Pragati.
3) Relay Annunciation: na
4) Details of physically damaged equipment: na
5) Immediate corrective/system normalization steps performed: na
6) Any other relevant information: na
Regards, Delhi SLDC |
20221215083527 | 2022/12/15 08:35:28 | 1) Name of the substation and Time: 220kV Pragati and Parkstreet
2) Name of element tripped/restored: @07:52Hrs, Monkey fall on 33kV Incomer-2 at Parkstreet and this Incomer-2 tripped. Due to This 220kV Pragati- Parkstree -1 Tripped at Pragati end but not tripped at Parkstreet end. Also 220kv side of 100mVA Transformers not tripped of at Parkstreet end.
@8:15Hrs, 220kV Bus-1 charged through 220kv Bus Coupler and 33kV Bus-1 normalised as relay of 220kv Pragati-Parkstreet stuck/not reset.
3) Relay Annunciation: At Pragati- O/C, R-phase, Any Trip, Line differential RYB phase.
4) Details of physically damaged equipment: 33KV I/C-II AT PARKSTREET.
5) Immediate corrective/system normalization steps performed: SUPPLY TAKEN THROUGH 220KV BUS COUPLER AT PKS.
6) Any other relevant information: NA
Regards, Delhi SLDC |
20221215070632 | 2022/12/15 07:06:33 | 1) Name of the substation and Time: 220kv Naraina
2) Name of element tripped/restored: @06:52 Hrs. 220kv Dwaraka-1 tripped on Distance Protection. No load affected.
3) Relay Annunciation: na
4) Details of physically damaged equipment: na
5) Immediate corrective/system normalization steps performed: na
6) Any other relevant information: na
Regards, Delhi SLDC |
20221208195323 | 2022/12/08 19:53:23 | 1) Name of the substation and Time: At 220kV GIS Dev Nagar, (19:08- 19:40) Hrs.
2) Name of element tripped/restored: 1) 220kV Bus-Bar I enrgized through 220kV Park Street( Bay-209) and 220kV Bus -bar-II energized through 220kV Bus-coupler(Bay--207) at 19:08 Hrs.
2)220kV/33kV, 100 MVA Tx-4(Bay- 210) energized at 19:21 Hrs
3)220kV/33kV, 100 MVA Tx-3(Bay-201) energized at 19:40 Hrs
3) Relay Annunciation: -
4) Details of physically damaged equipment: -
5) Immediate corrective/system normalization steps performed: -
6) Any other relevant information: -
Regards, Delhi SLDC |
20221208001241 | 2022/12/08 00:12:43 | 1) Name of the substation and Time: 220kv Parkstreet @00.01 hrs
2) Name of element tripped/restored: 220kv dev nagar
3) Relay Annunciation: auto reclose trip
4) Details of physically damaged equipment: na
5) Immediate corrective/system normalization steps performed: na
6) Any other relevant information: na
Regards, Delhi SLDC |
20221207185652 | 2022/12/07 18:56:53 | 1) Name of the substation and Time: 220kv DEV Nagar @18.46
2) Name of element tripped/restored: 220kv parkstreet cb closed and 220 kv bus1 and b/c and bus 2 charged
3) Relay Annunciation: na
4) Details of physically damaged equipment: na
5) Immediate corrective/system normalization steps performed: na
6) Any other relevant information: na
Regards, Delhi SLDC |
20221207081622 | 2022/12/07 08:16:23 | 1) Name of the substation and Time: Park Street, .I.P, HCML
2) Name of element tripped/restored: Please provide uninterrupted power supply during the Parliament Session starts w.e.f. 07.12.2022 to 29.12.2022 on Park Street-Nirman Bhawan, Park Street-Baired Lane, I.P.Bay 2-Nirman Bhawan,I.P.Bay 4-Elect. Lane, HCML-Raisena Road,
3) Relay Annunciation: N.A.
4) Details of physically damaged equipment: N.A.
5) Immediate corrective/system normalization steps performed: N.A.
6) Any other relevant information: NDMC DISCOM AREA
Regards, Delhi SLDC |
20221207080220 | 2022/12/07 08:02:20 | 1) Name of the substation and Time: ALL BYPL AREA SUBSTATIONS
2) Name of element tripped/restored: Avoid any interruption in BYPL area for smooth counting at counting centers of MCD pole On 07/12/2022. Please ensure uninterrupted power supply.
3) Relay Annunciation: N.A.
4) Details of physically damaged equipment: N.A.
5) Immediate corrective/system normalization steps performed: N.A.
6) Any other relevant information: N.A.
Regards, Delhi SLDC |
20221206220105 | 2022/12/06 22:01:06 | 1) Name of the substation and Time: 220KV PARKSTREET
2) Name of element tripped/restored: NEWLY COMMISSIONED PARKSTREET- DEVNAGAR 220KV FEEDER CHARGED @20:58 HRS ON NO LOAD.
3) Relay Annunciation: N.A.
4) Details of physically damaged equipment: N.A.
5) Immediate corrective/system normalization steps performed: N.A.
6) Any other relevant information: N.A.
Regards, Delhi SLDC |
20221206144259 | 2022/12/06 14:42:59 | 1) Name of the substation and Time: 220kv Subzi mandi @14.02
2) Name of element tripped/restored: 220kv Gopalpur-2 CVT disaapered along with 33 kv BGroad ckt-1 and 2
3) Relay Annunciation: no indication
4) Details of physically damaged equipment: NA
5) Immediate corrective/system normalization steps performed: 31 MW LOAD EFFECTED @ 14.20
33 KV BUSSECTION MADE ON SUUPLY RESTORED
6) Any other relevant information: AT 220KV GOPLAPUR -SUBZIMANDI CKT-2 TRIPED WITHOUT INDICATION
Regards, Delhi SLDC |
20221202132133 | 2022/12/02 13:21:34 | 1) Name of the substation and Time: 220KV SHALIMERBAGH @12.58
2) Name of element tripped/restored: 33 KV I/C -3
3) Relay Annunciation: no indication
4) Details of physically damaged equipment: na
5) Immediate corrective/system normalization steps performed: bus coupler made on 13.10 hrs load restrored
6) Any other relevant information: load effected 40 mw
Regards, Delhi SLDC |
20221202131904 | 2022/12/02 13:19:05 | 1) Name of the substation and Time: 220kV DSIDC BAWANA @ 12.59
2) Name of element tripped/restored: 220KV BAWANA CKT-1
3) Relay Annunciation: Z2 OPTD ,RYB PH, 86
4) Details of physically damaged equipment: NA
5) Immediate corrective/system normalization steps performed: B/C MADE ON LOAD RESTORED @ 13.02
6) Any other relevant information: LOAD EFFECTED 87 MW
Regards, Delhi SLDC |
20221129114746 | 2022/11/29 11:47:47 | 1) Name of the substation and Time: aT 11:15 hRS,220Kv SMB
2) Name of element tripped/restored: 33kV I/C-III with 33kV Bus-II
3) Relay Annunciation: O/C- B Phase, 86
4) Details of physically damaged equipment: B-Ph, Bus PT blast, Y-Ph Bus PT damaged
5) Immediate corrective/system normalization steps performed: Load has been shifted to grid by TPDDL
6) Any other relevant information: Approx. load effected 28 MW
Regards, Delhi SLDC |
20221127113514 | 2022/11/27 11:35:15 | 1) Name of the substation and Time: Okhla
2) Name of element tripped/restored: At 11:09Hrs 160MVA T/F-1 tripped on differential YB-phase.
Load affected was 27MW.
At 11:15Hrs 66KV B/C closed and load normalised.
At 11:30Hrs 160MVA T/F-1 charged.
3) Relay Annunciation: na
4) Details of physically damaged equipment: na
5) Immediate corrective/system normalization steps performed: na
6) Any other relevant information: na
Regards, Delhi SLDC |
20221127102007 | 2022/11/27 10:20:08 | 1) Name of the substation and Time: 220KV Tughlakabad
2) Name of element tripped/restored: 220KV R. K. Puram-II
3) Relay Annunciation: Nil
4) Details of physically damaged equipment: Nil
5) Immediate corrective/system normalization steps performed: N/A
6) Any other relevant information: 220KV R. K. Puram-II put off at 22:14Hrs. on 26.11.2022 due to high voltage and tried to charge on today, 27.11.2022 till morning, but its CB could not be hold. Informed to AM(T) Maintenance, Tughlakabad
Regards, Delhi SLDC |
20221127085104 | 2022/11/27 08:51:05 | 1) Name of the substation and Time: 220kV Parkstreet, 8:20Hrs
2) Name of element tripped/restored: Discom Feeders normalized
3) Relay Annunciation: NIL
4) Details of physically damaged equipment: NIL
5) Immediate corrective/system normalization steps performed: Discoms requested to normalize the load diverted at thier end due to DC problem at Parkstreet
6) Any other relevant information: Discom normalized the load, no load affected during this period.
Regards, Delhi SLDC |
20221127074141 | 2022/11/27 07:41:41 | 1) Name of the substation and Time: 220KV Park Street, 05:11Hrs.
2) Name of element tripped/restored: DC leakage restored
3) Relay Annunciation: NIL
4) Details of physically damaged equipment: Nil
5) Immediate corrective/system normalization steps performed: Nil
6) Any other relevant information: Dioscm informed to normalize the load.No load affected, Didcom still normalizing the load diverted at their end.
Regards, Delhi SLDC |
20221127034309 | 2022/11/27 03:43:10 | 1) Name of the substation and Time: 220KV Park Street, 02:40Hrs.
2) Name of element tripped/restored: Load of 66KV and 33KV Feeders shifted/isolated due to DC problem
3) Relay Annunciation: DC fail, Trip Circuit faulty at 66KV and 33KV level
4) Details of physically damaged equipment: Nil
5) Immediate corrective/system normalization steps performed: DISCOM load shifted
6) Any other relevant information: Informed to concerned AGM SO and DGM O and M
Regards, Delhi SLDC |
20221127000455 | 2022/11/27 00:04:56 | 1) Name of the substation and Time: 220KV Sabji Mandi Substation charged at 23:54Hrs.
2) Name of element tripped/restored: 220KV Gopal Pur-I and II, 100MVA-I and II, 33KV I/C-I and II, 16MVA-I and II along with 11KV I/C-I and II charged.
3) Relay Annunciation: Nil
4) Details of physically damaged equipment: Nil
5) Immediate corrective/system normalization steps performed: N/A
6) Any other relevant information: 220KV Substation Subji Mandi was completely swithched off on 26.11.2022 at 09:45Hrs along with 220KV, 33KV, 11KV and Power Transformers for overhauling of 220KV and 33KV GIS System but same was return due to shortage of material.
Regards, Delhi SLDC |
20221124123131 | 2022/11/24 12:31:32 | 1) Name of the substation and Time: 220kV Parkstreet at 10:55Hrs
2) Name of element tripped/restored: 220kV Parkrtreet- Pragati ckt 1, 100MVA Tr No 4 220/33kV Incomer along with 33kV Shankar road 2 tripped due to monkey at 33kV Shankar road 2 bus isolator.
3) Relay Annunciation: Any trip e/f stage 1 86 at 220kV pragati ckt1, 33kV Incomer No2 (100MVA Tr-4) any trip over current stage 1 overcurrent B-Ph and earth fault stage 1 (86).
4) Details of physically damaged equipment: 33kV Shankar road-2 Bus -II isolator flash.
5) Immediate corrective/system normalization steps performed: Load diverted and instructed S/stn staff to check and give clearance.
6) Any other relevant information: Load affected 50MW from 10:55Hrs to 11:25Hrs.
Regards, Delhi SLDC |
20221123190157 | 2022/11/23 19:01:58 | 1) Name of the substation and Time: Okhla
2) Name of element tripped/restored: At 17:56Hrs 33kV I/C-III and 33KV I/C-IV tripped on O/C R and Y phase with the tripping of 33KV Alaknanda ckt-I and ckt-II.
Grid staff has reported electrocution of monkey.
Load affected was 25MW.
At 18:40Hrs 33KV I/C III and 33KV I/C-IV charged and load normalised.
3) Relay Annunciation: na
4) Details of physically damaged equipment: na
5) Immediate corrective/system normalization steps performed: na
6) Any other relevant information: na
Regards, Delhi SLDC |
20221122195016 | 2022/11/22 19:50:17 | 1) Name of the substation and Time: 220kV Park Street, 18:43 Hrs
2) Name of element tripped/restored: 33kV I/C-II
3) Relay Annunciation: Any trip, O/C St1,O/C-R-Ph, 86
4) Details of physically damaged equipment: -
5) Immediate corrective/system normalization steps performed: load shifted by BSES and Normalized
the system at 19:25 Hrs.
6) Any other relevant information: Approx. load effected 14 MW
Regards, Delhi SLDC |
20221119160707 | 2022/11/19 16:07:08 | 1) Name of the substation and Time: 400kv HARSH VIHAR
2) Name of element tripped/restored: 14:16 HRS 66KV BUSBAR RELAY OPERATED
LOAD AFFECTED : 63MW
At 14:39 Hrs Load Normalized
3) Relay Annunciation: n.a.
4) Details of physically damaged equipment: n.a.
5) Immediate corrective/system normalization steps performed: n.a.
6) Any other relevant information: n.a.
Regards, Delhi SLDC |
20221118141418 | 2022/11/18 14:14:20 | 1) Name of the substation and Time: Dial
2) Name of element tripped/restored: At 13:57Hrs 220KV Bamnauli-Dial ckt-II tripped at Bamnauli end on Z-2 AB-phase 11.9Km fault current 11.3KA.
No load was affected.
3) Relay Annunciation: na
4) Details of physically damaged equipment: na
5) Immediate corrective/system normalization steps performed: na
6) Any other relevant information: na
Regards, Delhi SLDC |
20221118090111 | 2022/11/18 09:01:12 | 1) Name of the substation and Time: 220kV Narela, 08:50 Hrs
2) Name of element tripped/restored: 20 MVA Tx. I with 11 kV I/C-I
3) Relay Annunciation: Buchholz and 86
4) Details of physically damaged equipment: NA
5) Immediate corrective/system normalization steps performed: 08:54Hes ,System is normalized bu using 11 kV Bus section
6) Any other relevant information: Approx. load effected 3 MW
Regards, Delhi SLDC |
20221117182110 | 2022/11/17 18:21:12 | 1) Name of the substation and Time: 220kV Meherauli, 14:41 Hrs
2) Name of element tripped/restored: 100 MVA Tx I,II and III
3) Relay Annunciation: At 100 MVA Tx I-86,
At 100 MVA Tx II-86 and
At 100 MVA Tx III-E/F and 86
4) Details of physically damaged equipment: NA
5) Immediate corrective/system normalization steps performed: System is normalized at 14:50 Hrs
6) Any other relevant information: Approx. load effected -130 MW
Regards, Delhi SLDC |
20221113142043 | 2022/11/13 14:20:44 | 1) Name of the substation and Time: 220kV IP, 12:52 hrs
2) Name of element tripped/restored: 100 MVA-III with 33kV I/C-III and 33kV I/C-II due to monkey elecrocuted on 33kV Bus- bar
3) Relay Annunciation: On 100 MVA-III- REF, 86,
On 33kV -I/C-III- O/C-R ph,
On 33kV I/C-II- O/C B- Ph and O/C St-I
4) Details of physically damaged equipment: NA
5) Immediate corrective/system normalization steps performed: 13:12 Hrs system is normalized by closing 33kV I/C-II
6) Any other relevant information: Approx. load effected 56 MW
Regards, Delhi SLDC |
20221112081626 | 2022/11/12 08:16:28 | 1) Name of the substation and Time: At 03:03 hrs: 220kV Rohini-II
2) Name of element tripped/restored: both 220KV ckts of BAWANA tripped at both ends
3) Relay Annunciation: At 400 KV Bawana end- E/F and 186 AB
At 220KV Rohini-II: Details N/A
4) Details of physically damaged equipment: 160 MVA-I oil leakage and fire observed in control Cables and Battery bank
5) Immediate corrective/system normalization steps performed: 220kV B/C made ON and Load Shifted by Discoms
6) Any other relevant information: At same time 315MVA ICT-II tripped and restored at 7:02 hrs at 400kV Bawana
Regards, Delhi SLDC |
20221112074411 | 2022/11/12 07:44:12 | 1) Name of the substation and Time: At 03:03 Hrs.
400KV Bawana Sub.Stn.
2) Name of element tripped/restored: 315 MVA ICT#2 tripped
3) Relay Annunciation: O/C,R-Phase
4) Details of physically damaged equipment: At 220 KV Rohini-II Sub.Stn. fire observed in control cables and battery bank
5) Immediate corrective/system normalization steps performed: Load shifted by DISCOM
6) Any other relevant information: 315 MVA ICT#2 normalize at 07:02 hrs at 400 KV Bawana
Regards, Delhi SLDC |
20221106172631 | 2022/11/06 17:26:32 | 1) Name of the substation and Time: At 16:42 HRS
220KV BTPS
2) Name of element tripped/restored: 220KV OKHALA CKT-I
3) Relay Annunciation: At OKHLA,tripped,Zone-I
BTPS
Gen TRip ZOne-IR-Ph,Fault Distance 0.2KM
4) Details of physically damaged equipment: R-Phase 220KV LA damage
5) Immediate corrective/system normalization steps performed: No Load affected
6) Any other relevant information: -
Regards, Delhi SLDC |
20221105162232 | 2022/11/05 16:22:33 | 1) Name of the substation and Time: 220 M/ Moth , 16:15
2) Name of element tripped/restored: 100 MVA Tx. -II with 33 kv I/C-II
3) Relay Annunciation: PRV and master relay
4) Details of physically damaged equipment: NA
5) Immediate corrective/system normalization steps performed: 16:16 Hrs , system is normalized
6) Any other relevant information: Approx. load effected 39 MW
Regards, Delhi SLDC |
20221104113040 | 2022/11/04 11:30:40 | 1) Name of the substation and Time: 220kV Lodhi Rd., 09:13
2) Name of element tripped/restored: 16 MVA Tx. -IV with 11kV I/c-IV due to Monkey electrocuted on HV side bushing, 100MVA Tx-II with 33kV I/C-II tripped due DC supply failed
3) Relay Annunciation: On 16 MVA-Master relay,
On 100 MVA Tx-II-Master relay I and II .
4) Details of physically damaged equipment: NA
5) Immediate corrective/system normalization steps performed: At 10:10Hrs, system is normal and 16 MVA tx. under B/D already
6) Any other relevant information: Approx. 26 MW load effected
Regards, Delhi SLDC |
20221104091823 | 2022/11/04 09:18:23 | 1) Name of the substation and Time: At 220KV Sarita Vihar(23:54) 03.11.22
2) Name of element tripped/restored: 220KV Pragati ckt
3) Relay Annunciation: B phase trip(RYB) 5.15KA fault current .distance protection
4) Details of physically damaged equipment: none
5) Immediate corrective/system normalization steps performed: no load affected.
6) Any other relevant information: both end tripping.
Regards, Delhi SLDC |
20221102084058 | 2022/11/02 08:40:59 | 1) Name of the substation and Time: 220kV Pragati, 08:18
2) Name of element tripped/restored: 220kV Pragati-Sarita Vihar
3) Relay Annunciation: At Pragati:- Trip Phase AN , Distance Zone-2, Fault located-11.70KM, Ia--8.09kA, Ib-120.1A, Ic-132.0A, In-8.338KA.
At Sarita Vihar:- Zone-1,Dist. 2.712kM, Fault current IA-8.345Ka, Ib-116.2A,Ic-131.3A,In-8.102KA, R-Phase Trip
4) Details of physically damaged equipment: NA
5) Immediate corrective/system normalization steps performed: NA
6) Any other relevant information: NA
Regards, Delhi SLDC |
20221031104154 | 2022/10/31 10:41:55 | 1) Name of the substation and Time: 220KV Dwarka, 09:57Hrs.
2) Name of element tripped/restored: 220KV Naraina-I
3) Relay Annunciation: Zone-1, R-Phase, Fault Location - 1.60Km, Fault Current, R-Phase - 22.078KA and In - 21.441KA.
4) Details of physically damaged equipment: N/A
5) Immediate corrective/system normalization steps performed: N/A
6) Any other relevant information: N/A
Regards, Delhi SLDC |
20221024151511 | 2022/10/24 15:15:12 | 1) Name of the substation and Time: 400 kv bawana @13.05
2) Name of element tripped/restored: 220kv i/c -5,220kv bus section,220 kv DSIDC BAWANA CKT-1
3) Relay Annunciation: LBB BB TRIP
4) Details of physically damaged equipment: NA
5) Immediate corrective/system normalization steps performed: NA
6) Any other relevant information: NA
Regards, Delhi SLDC |
20221022074821 | 2022/10/22 07:48:22 | 1) Name of the substation and Time: 220kV Park street, at 06.32 Hrs
2) Name of element tripped/restored: 33kV I/C-II due to monkey Electrocuted
3) Relay Annunciation: E/F, FT-1,86
4) Details of physically damaged equipment: -
5) Immediate corrective/system normalization steps performed: at 06.50 Hrs, system is normalized
6) Any other relevant information: Load effected approx. 60 MA
Regards, Delhi SLDC |
20221022002407 | 2022/10/22 00:24:08 | 1) Name of the substation and Time: 220kV Park street, At 23:37 Hrs
2) Name of element tripped/restored: 100 MVA Tx-I with 33kV I/C-I and 33kV I/C-II (Monkey electrocuted)
3) Relay Annunciation: 30A-Bucholz trip,O/C,86 at 100 MVA Tx. with intertrip and St-1, O/C-R-Ph at 33kV I/C-II
4) Details of physically damaged equipment: -
5) Immediate corrective/system normalization steps performed: At 23:55 Hrs 33kV -I/C-II and B/C put on and system is normalized
6) Any other relevant information: Approx.Load effected 58 MW
Regards, Delhi SLDC |
20221018134715 | 2022/10/18 13:47:16 | 1) Name of the substation and Time: Sabzi Mandi
2) Name of element tripped/restored: At 13:44Hrs 220KV Gopalpur-Sabzi Mandi ckt-II charged.
3) Relay Annunciation: na
4) Details of physically damaged equipment: na
5) Immediate corrective/system normalization steps performed: na
6) Any other relevant information: na
Regards, Delhi SLDC |
20221018121616 | 2022/10/18 12:16:17 | 1) Name of the substation and Time: Sabzi Mandi
2) Name of element tripped/restored: At 11:53Hrs supply failed of 220KV Gopalpur ckt-II.
Relay at Gopalpur end are YB-phase Z-1 3.1km Iy=Ib=7KA.
Load affected was 50MW of Sabzi Mandi.
Load normalised through 33KV B/C.
3) Relay Annunciation: na
4) Details of physically damaged equipment: na
5) Immediate corrective/system normalization steps performed: na
6) Any other relevant information: na
Regards, Delhi SLDC |
20221016135351 | 2022/10/16 13:53:52 | 1) Name of the substation and Time: 400 KV BML@ 10.30
2) Name of element tripped/restored: 220KV PPK-3- CKT-2
3) Relay Annunciation: Z1 OPTD 186 A B
4) Details of physically damaged equipment: NA
5) Immediate corrective/system normalization steps performed: na
6) Any other relevant information: CKT IS ON NO LOAD
Regards, Delhi SLDC |
20221016135205 | 2022/10/16 13:52:05 | 1) Name of the substation and Time: 220kv BTPS @1250
2) Name of element tripped/restored: 220KV TUGLAKABAD
3) Relay Annunciation: na
4) Details of physically damaged equipment: na
5) Immediate corrective/system normalization steps performed: na
6) Any other relevant information: 220kv BTPS-TUGLAKABAD ckt-1 restored
Regards, Delhi SLDC |
20221012125000 | 2022/10/12 12:50:01 | 1) Name of the substation and Time: At 11:48HRS
220 KV Patparganj
2) Name of element tripped/restored: 220 KV Geeta Colony Ckt-1
3) Relay Annunciation: -
4) Details of physically damaged equipment: -
5) Immediate corrective/system normalization steps performed: normal
6) Any other relevant information: -
Regards, Delhi SLDC |
20221011210133 | 2022/10/11 21:01:33 | 1) Name of the substation and Time: Patparganj
2) Name of element tripped/restored: At 20:39Hrs 220KV Geeta Colony ckt-I tripped without indication. CVT coming at Patparganj end.
No load was affected.
3) Relay Annunciation: na
4) Details of physically damaged equipment: na
5) Immediate corrective/system normalization steps performed: na
6) Any other relevant information: na
Regards, Delhi SLDC |
20221011181604 | 2022/10/11 18:16:05 | 1) Name of the substation and Time: Patparganj
2) Name of element tripped/restored: At 17:25Hrs 220KV Geeta Colony ckt-I tripped on 86 and 220KV Geeta Colony ckt-II tripped on 86 RYB-phase distance relay.
Load affected was approx. 200MW (IP,Rajghat and 66KV Park Street).
At 17:30Hrs 220KV Geeta Colony ckt-II charged and load normalised and at 17:34Hrs 220KV Geeta Colony ckt-I charged.
3) Relay Annunciation: na
4) Details of physically damaged equipment: na
5) Immediate corrective/system normalization steps performed: na
6) Any other relevant information: na
Regards, Delhi SLDC |
20221011151638 | 2022/10/11 15:16:39 | 1) Name of the substation and Time: 400 kV Bawana, 14:25 hrs
2) Name of element tripped/restored: 220kV Salimar Bagh Ckt-I
3) Relay Annunciation: At 400kV Bawana:- Distance protection with 86 relay
4) Details of physically damaged equipment: NA
5) Immediate corrective/system normalization steps performed: At 14:26 Hrs, System is normalized by CB closing at 220kV Bawana Ckt-1
6) Any other relevant information: Supply failed :-220kV Salimarbagh Ckt-1 and 2 at 220kV SGTN end and 220kV Salimarbagh Ckt-1 at220kV Wazirpur end.
Load effected approx. 145 MW only one minut(14:25 to 14;26)
Regards, Delhi SLDC |
20221011091850 | 2022/10/11 09:18:52 | 1) Name of the substation and Time: At Mehrauli:(08:58hrs)
2) Name of element tripped/restored: 100MVA-II
3) Relay Annunciation: OLTC and OSR
4) Details of physically damaged equipment: none.
5) Immediate corrective/system normalization steps performed: load taken on other transformer.
6) Any other relevant information: no load taken.
Regards, Delhi SLDC |
20221011090300 | 2022/10/11 09:03:01 | 1) Name of the substation and Time: At Mehrauli: 05:40hrs
2) Name of element tripped/restored: 100MVA-I and 100MVA-II.
3) Relay Annunciation: transformer-I tripped on trip ckt faulty. and Transformer-II tripped on OLTC and OSR.
4) Details of physically damaged equipment: none.
5) Immediate corrective/system normalization steps performed: load taken on other transformers.
6) Any other relevant information: No load affected.
Regards, Delhi SLDC |
20221011085805 | 2022/10/11 08:58:06 | 1) Name of the substation and Time: At Gazipur:03:54hrs
2) Name of element tripped/restored: 160MVA-I along with 66KV I/C-I
3) Relay Annunciation: overflux
4) Details of physically damaged equipment: none
5) Immediate corrective/system normalization steps performed: load met by other transformer.
6) Any other relevant information: No load affected.
Regards, Delhi SLDC |
20221010092011 | 2022/10/10 09:20:12 | 1) Name of the substation and Time: 220KV Gazipur, 08:40Hrs.
2) Name of element tripped/restored: 100MVA-II along with 66KV I/C-II and 25MVA-I along with 11KV I/C-I
3) Relay Annunciation: Bucchholz Relay on 100MVA-II and Differential Y and B Phase, REF VL, HFI on 25MVA-I
4) Details of physically damaged equipment: N/A
5) Immediate corrective/system normalization steps performed: N/A
6) Any other relevant information: N/A
Regards, Delhi SLDC |
20221008152249 | 2022/10/08 15:22:50 | 1) Name of the substation and Time: 220KV Gazipur, 15:15Hrs.
2) Name of element tripped/restored: 160MVA-III along with 66KV I/C-III with 66KV Bus-Coupler
3) Relay Annunciation: N/A
4) Details of physically damaged equipment: N/A
5) Immediate corrective/system normalization steps performed: N/A
6) Any other relevant information: Restored 160MVA-III along with 66KV I/C-III with 66KV Bus-Coupler
Regards, Delhi SLDC |
20221008151349 | 2022/10/08 15:13:49 | 1) Name of the substation and Time: 220KV Gazipur, 13:54Hrs.
2) Name of element tripped/restored: 160MVA-III along with 66KV I/C-III with 66KV Bus-Coupler
3) Relay Annunciation: O/C and RYB Phase on 160MVA-III and O/C Stage 1, O/C Y-Phase, O/C B-Phase and 80AC1 on 66KV Bus-Coupler
4) Details of physically damaged equipment: N/A
5) Immediate corrective/system normalization steps performed: N/A
6) Any other relevant information: N/A
Regards, Delhi SLDC |
20221007155513 | 2022/10/07 15:55:13 | 1) Name of the substation and Time: 220KV South of Wazirabad, 14:13Hrs.
2) Name of element tripped/restored: 220KV Mandaula-I
3) Relay Annunciation: R-Phase Trip, Y-Phase Trip, Distance Trip, Zone-I, AR Lockout, 86, AB Trip, Fault Location - 3.791Km and Fault Current, R-Phase - 9.65KA and Y-Phase - 10.5KA
4) Details of physically damaged equipment: N/A
5) Immediate corrective/system normalization steps performed: N/A
6) Any other relevant information: N/A
Regards, Delhi SLDC |
20221007133712 | 2022/10/07 13:37:13 | 1) Name of the substation and Time: 220KV Okhla, 13:18Hrs.
2) Name of element tripped/restored: Restored all 220KV, 66KV, 33KV and 11KV Feeders (except 33KV Tughlakabad-I)
3) Relay Annunciation: N/A
4) Details of physically damaged equipment: N/A
5) Immediate corrective/system normalization steps performed: N/A
6) Any other relevant information: N/A
Regards, Delhi SLDC |
20221007115459 | 2022/10/07 11:55:00 | 1) Name of the substation and Time: Corrigendum :
220kV Parkstreet 10:32Hrs to 10:46Hrs
2) Name of element tripped/restored: 220kV Pragati Ckt II
3) Relay Annunciation: DC Leakage
4) Details of physically damaged equipment: NIL
5) Immediate corrective/system normalization steps performed: Ckt charged at 10:46Hrs
6) Any other relevant information: Total 53 MW Load affected for 14Min, rest load shiftewd by discoms
Regards, Delhi SLDC |
20221007105847 | 2022/10/07 10:58:48 | 1) Name of the substation and Time: 220KV parkstreet, 10:32Min
2) Name of element tripped/restored: 220kV Pragati ckt II tripped, due to DC leakage
3) Relay Annunciation: 186A, 195CB, 295CA,80DC Supervision 1 and 2
4) Details of physically damaged equipment: Nil
5) Immediate corrective/system normalization steps performed: clearance recieved from S/stn ckt charged at 10:46Hrs
6) Any other relevant information: Load shifted by Discom
Regards, Delhi SLDC |
20221007102711 | 2022/10/07 10:27:12 | 1) Name of the substation and Time: 220kV okhla 3:50Hrs
2) Name of element tripped/restored: 220KV BTPS ckt 1 and II, and 220kV TKD ckt II along with Complete 33kV and 66kV feeders are switched off due to DC leakage.
3) Relay Annunciation: DC leakage
4) Details of physically damaged equipment: NIL
5) Immediate corrective/system normalization steps performed: Concered Manager and DM(T) are informed to take corrective action
6) Any other relevant information: Nil
Regards, Delhi SLDC |
20221004144714 | 2022/10/04 14:47:14 | 1) Name of the substation and Time: 220kV Bawana, at 12:33hrs
2) Name of element tripped/restored: -
3) Relay Annunciation: -
4) Details of physically damaged equipment: -
5) Immediate corrective/system normalization steps performed: -
6) Any other relevant information: system restored at 14:41 at 220kV KNJ
Regards, Delhi SLDC |
20221004135810 | 2022/10/04 13:58:10 | 1) Name of the substation and Time: 220kV Bawana, at 12:33hrs
2) Name of element tripped/restored: 220kV KNJ Ckt-II
3) Relay Annunciation: Distance protection operated , Zone-1,Dist.-10.42km, Ia-420A, Ib-970A,Ic-4.86kA, In-3.59KA, O/C
4) Details of physically damaged equipment: NA
5) Immediate corrective/system normalization steps performed: 220kV KNJ is normalized through 220kV Mundka Ckt at 12:34 hrs
6) Any other relevant information: Load effected approx. 120MW for 1 minut only at KNJ end
Regards, Delhi SLDC |
20221003145915 | 2022/10/03 14:59:15 | 1) Name of the substation and Time: At 13:54 HRS
220KV Mehrauli
2) Name of element tripped/restored: 220KV TUGB-II
3) Relay Annunciation: -
4) Details of physically damaged equipment: -
5) Immediate corrective/system normalization steps performed: -
6) Any other relevant information: 220KV TUGB-II energized at 13:54 HRS
System normal
Regards, Delhi SLDC |
20221003112920 | 2022/10/03 11:29:20 | 1) Name of the substation and Time: 220kV Meherauli , at 10:14
2) Name of element tripped/restored: 220kV TKD-MLI ckt-II,
3) Relay Annunciation:
At TKD End:-A-Phase, fault current -20.64 KA, Zone-1, Distance -4.2kM
At 220kV Mli end:- R-Ph, Line differential relay operated
4) Details of physically damaged equipment: NA
5) Immediate corrective/system normalization steps performed: Laken taken on 220kV Vasant Kunj Ckt-2
6) Any other relevant information: NA
Regards, Delhi SLDC |
20221002170707 | 2022/10/02 17:07:08 | 1) Name of the substation and Time: 220KV OKHLA @ 16:32
2) Name of element tripped/restored: 160MVA TX -I TRIPPED DUE TO TRIPPING OF 66KV MALVIYA NAGAR-II. TRANSFORMER RESTORED @ 16:55 HRS. LOAD AFFECTED 49MW
3) Relay Annunciation: O/C, Y and B PHASE.
4) Details of physically damaged equipment: NA
5) Immediate corrective/system normalization steps performed: FAULTY FEEDER NOT CHARGED.
6) Any other relevant information: TRANSFORMER TRIPPED WITH A OUTGOING FEEDER 66KV MALVIYA NAGAR -II
Regards, Delhi SLDC |
20221002163509 | 2022/10/02 16:35:10 | 1) Name of the substation and Time: 400KV BAMNAULI
2) Name of element tripped/restored: 400/220KV 500MVA ICT-III RESTORED @ 16:29
3) Relay Annunciation: NA
4) Details of physically damaged equipment: NA
5) Immediate corrective/system normalization steps performed: NA
6) Any other relevant information: NA
Regards, Delhi SLDC |
20221002160141 | 2022/10/02 16:01:42 | 1) Name of the substation and Time: 220kv PPGJ
2) Name of element tripped/restored: 220KV GEETA COLONY-II TRIPPED @ 15:22HRS ON RELAY: R and Y PH. Z-1, 86, 883.7 MTR, RELAY AT G.COLONY END : 86ABC, 27A and B, 30E, ZONE-1, 3.510KM
3) Relay Annunciation: NA
4) Details of physically damaged equipment: NA
5) Immediate corrective/system normalization steps performed: NA
6) Any other relevant information: CKT TRIPPED FROM BOTH END
Regards, Delhi SLDC |
20221002154442 | 2022/10/02 15:44:42 | 1) Name of the substation and Time: 220KV IP
2) Name of element tripped/restored: 220KV IP - PPGJ CKT 1 TRIPPED @ 186, R and Y PHASE, ZONE-1, DIST - 181.4 MTR.
RELAY AT PPGJ - ZONE-1, R and Y PHASE, 550 MTRS, FAULT CURRENT - 12.58KA (R PH), 12.84KA (yPH)
3) Relay Annunciation: NA
4) Details of physically damaged equipment: NA
5) Immediate corrective/system normalization steps performed: DISCOME REQUETED TO REDUCE LOAD FROM IP AND RAJGHAT
6) Any other relevant information: CKT TRIPPED FROM BOTH END
Regards, Delhi SLDC |
20221002152749 | 2022/10/02 15:27:49 | 1) Name of the substation and Time: 220kv DIAL @ 15:13
2) Name of element tripped/restored: 220KV BAMNAULI - I RESTORED
3) Relay Annunciation: NA
4) Details of physically damaged equipment: NA
5) Immediate corrective/system normalization steps performed: NA
6) Any other relevant information: NA
Regards, Delhi SLDC |
20221002141910 | 2022/10/02 14:19:10 | 1) Name of the substation and Time: 220kv sarita vihar
2) Name of element tripped/restored: 220kv pragati - sarita vihar restored@14:07
3) Relay Annunciation: na
4) Details of physically damaged equipment: na
5) Immediate corrective/system normalization steps performed: na
6) Any other relevant information: na
Regards, Delhi SLDC |
20221002131558 | 2022/10/02 13:15:59 | 1) Name of the substation and Time: 220kV SARITA VIHAR @ 12:57
2) Name of element tripped/restored: 220KV PRAGATI CKT
3) Relay Annunciation: AT SARITA VIHAR END : B - PHASE ZONE-II, 15.02 KM, FAULT CURRENT - 3.558KA
AT PRAGATI END : B - PHASE, ZONE-1, 1.459KM FAULT CURRENT - 17.52KA
4) Details of physically damaged equipment: NIL
5) Immediate corrective/system normalization steps performed: N.A.
6) Any other relevant information: CKT TRIPPED AT BOTH END.
Regards, Delhi SLDC |
20221002125708 | 2022/10/02 12:57:09 | 1) Name of the substation and Time: 400KV BAMNAULI @ 12:09
2) Name of element tripped/restored: 400/220KV ICT-III
3) Relay Annunciation: 186A and B, 30B, PRV ,GRPA 86A1, GRP B 86B-1
4) Details of physically damaged equipment: N.A.
5) Immediate corrective/system normalization steps performed: LOAD CAME ON OTHER TRANFORMERS
6) Any other relevant information: TRANSFORMER TRIPPED WITH 220KV DIAL CKT -I
Regards, Delhi SLDC |
20221002125116 | 2022/10/02 12:51:17 | 1) Name of the substation and Time: 220kv DIAL @ 12:09
2) Name of element tripped/restored: 220KV BAMNAULI CKT -1
3) Relay Annunciation: TRIPPED ON R PH. TRIP, ZONE-II, GEN TRIP
4) Details of physically damaged equipment: NA
5) Immediate corrective/system normalization steps performed: LOAD TAKEN ON 220KV MEHRAULI
6) Any other relevant information: NO LOAD AFFECTED
Regards, Delhi SLDC |
20221001235929 | 2022/10/01 23:59:30 | 1) Name of the substation and Time: 220KV Sabji Mandi, 23:20Hrs.
2) Name of element tripped/restored: 100MVA-II
3) Relay Annunciation: 86, 186, Buchholz Relay operated
4) Details of physically damaged equipment: N/A
5) Immediate corrective/system normalization steps performed: N/A
6) Any other relevant information: N/A
Regards, Delhi SLDC |
20221001143948 | 2022/10/01 14:39:48 | 1) Name of the substation and Time: Vasant Kunj
2) Name of element tripped/restored: At 13:13Hrs supply fail of 220KV Mehrauli ckt-II.
Relay at Mehrauli end- E/F.
Load affected was 40MW.
Load normalised through 220KV RK Puram ckt at 13:15Hrs.
3) Relay Annunciation: na
4) Details of physically damaged equipment: na
5) Immediate corrective/system normalization steps performed: na
6) Any other relevant information: na
Regards, Delhi SLDC |
20221001130321 | 2022/10/01 13:03:22 | 1) Name of the substation and Time: Geeta Colony
2) Name of element tripped/restored: At 12:36Hrs 100MVA T/F-1 tripped on PRV Buchholz relay OTI WTI OSR SPR 86.
Load affected was 39MW.
Load normalised through 33KV B/C at 12:45Hrs
3) Relay Annunciation: na
4) Details of physically damaged equipment: na
5) Immediate corrective/system normalization steps performed: na
6) Any other relevant information: na
Regards, Delhi SLDC |
20220927170946 | 2022/09/27 17:09:47 | 1) Name of the substation and Time: At Sarita Vihar(14:29hrs)
2) Name of element tripped/restored: 220KV Maharani Bagh ckt.
3) Relay Annunciation: zone-I , Rphase ,4.89KA, 2.915KM.
4) Details of physically damaged equipment: Awaited.
5) Immediate corrective/system normalization steps performed: 220KV Bus coupler put ON at Sarita Vihar.
6) Any other relevant information: No load was affected.
Regards, Delhi SLDC |
20220927132508 | 2022/09/27 13:25:08 | 1) Name of the substation and Time: At Tughlakabad(12:30hrs)
2) Name of element tripped/restored: 220KV Mehrauli ckt-II
3) Relay Annunciation: R and Y phase, 16.6KM, 11.22KA, zone-I.
4) Details of physically damaged equipment: Information awaited.
5) Immediate corrective/system normalization steps performed: BSES asked to C/O load on available sources.
6) Any other relevant information: Supply of 220KV Vasant Kunj also affected.Since all the three transformers at Vasant Kunj has tripped and are not closing due to breaker trouble.
Regards, Delhi SLDC |
20220923171618 | 2022/09/23 17:16:18 | 1) Name of the substation and Time: At 220KV PPK-III(16:28hrs)
2) Name of element tripped/restored: 160MVA-II
3) Relay Annunciation: 67N, ST-1
4) Details of physically damaged equipment: none.
5) Immediate corrective/system normalization steps performed: 66KV bus coupler put ON.
6) Any other relevant information: Load normalized.
Regards, Delhi SLDC |
20220922173150 | 2022/09/22 17:31:51 | 1) Name of the substation and Time: 220KV Okhla, 11:04Hrs.
2) Name of element tripped/restored: 33KV I/C-III and IV
3) Relay Annunciation: O/C, 86
4) Details of physically damaged equipment: N/A
5) Immediate corrective/system normalization steps performed: N/A
6) Any other relevant information: Load shifted by DISCOM (BRPL) and total load effected is 3.5MW due to faulty cable of DISCOM (BRPL).
Regards, Delhi SLDC |
20220918160342 | 2022/09/18 16:03:43 | 1) Name of the substation and Time: 220kV Geeta clny, At 15:25 hrs.
2) Name of element tripped/restored: 33kV I/C-II along with 33kV Kailash Ngr-1 and 2
3) Relay Annunciation: At 33kV I/C-II O/C and 86, at 33kV O/G fdr Kailash Ngr- 1 and 2 with O/C high set and E/F high set.
4) Details of physically damaged equipment: NA
5) Immediate corrective/system normalization steps performed: Load has been transfered by BYPL
6) Any other relevant information: At 15:44 Hrs- 33kV bus energized through I/C-II with O/G fdrs.Approx. load effected 50 MW
Regards, Delhi SLDC |
20220918090200 | 2022/09/18 09:02:00 | 1) Name of the substation and Time: Sabzi Mandi
2) Name of element tripped/restored: 100MVA T/F-2 charged at 07:20Hrs.
3) Relay Annunciation: na
4) Details of physically damaged equipment: na
5) Immediate corrective/system normalization steps performed: na
6) Any other relevant information: na
Regards, Delhi SLDC |
20220918012520 | 2022/09/18 01:25:21 | 1) Name of the substation and Time: Sabzi Mandi
2) Name of element tripped/restored: At 23:35Hrs 100MVA T/F-2 tripped on 86.
Load affected was 32MW.
Load normalised through 33KV B/C at 23:45Hrs.
3) Relay Annunciation: na
4) Details of physically damaged equipment: na
5) Immediate corrective/system normalization steps performed: na
6) Any other relevant information: na
Regards, Delhi SLDC |
20220917141154 | 2022/09/17 14:11:55 | 1) Name of the substation and Time: 400kV Bamnauli, at 13:18
2) Name of element tripped/restored: 220kV Dail ckt-II
3) Relay Annunciation: At bamnauli:- Zone-II,86 A and B,Dis-9.85kM, Fault current Ic-12.25kA.
At 220kV Dail:- Zone-II tripped, B-Phase trip, fault current 797.0kA
4) Details of physically damaged equipment: NIL
5) Immediate corrective/system normalization steps performed: 13:35 Hrs:- Load taken on 220kV Meherauli Ckt-II and 66kV B/C put off
6) Any other relevant information: Load effected-Nill
Regards, Delhi SLDC |
20220917002352 | 2022/09/17 00:23:53 | 1) Name of the substation and Time: At 20:03 Hrs.400 KV Bawana
2) Name of element tripped/restored: 315MVA ICT#4 Energised
3) Relay Annunciation: na
4) Details of physically damaged equipment: na
5) Immediate corrective/system normalization steps performed: After completion of work NRLDC issued charging code
6) Any other relevant information: 315 MVA #4 was in breakdown wef 08 Sep (20:00 Hrs)
Regards, Delhi SLDC |
20220915164723 | 2022/09/15 16:47:24 | 1) Name of the substation and Time: Najafgarh
2) Name of element tripped/restored: Supply fail of 220KV Bamnauli ckt-II at 16:30Hrs
Relay at Bamnauli end are B-phase Z-1 5.37km fault current 14KA.
Load affected was 84MW.
At 16:34Hrs load normalised through 220KV B/C at Najafgarh.
3) Relay Annunciation: na
4) Details of physically damaged equipment: na
5) Immediate corrective/system normalization steps performed: na
6) Any other relevant information: na
Regards, Delhi SLDC |
20220910163550 | 2022/09/10 16:35:50 | 1) Name of the substation and Time: At 15:47 HRS
220KV DSIIDC BAWANA
2) Name of element tripped/restored: 220KV Bawana-I
3) Relay Annunciation: AT DSIIDC
Zone-I,Differential R-phase,Ia 921A,Ib408A,Ic 803A In2.096A
At 400KV
Zone -I,R,Y and B phase trip,Rn trip, Ia 25.19KA,Ib410A Ic 836A and In24.01A Distance 1.59KM
4) Details of physically damaged equipment: -
5) Immediate corrective/system normalization steps performed: At15:49 HRS
220KV Buscoupler closed system normalised
6) Any other relevant information: Approx 75MW load effected only for 2Minutes
Regards, Delhi SLDC |
20220909083917 | 2022/09/09 08:39:18 | 1) Name of the substation and Time: At Narela(00:05 hrs)
2) Name of element tripped/restored: 220KV Narela - DSIIDC ckt-II
3) Relay Annunciation: B and C phase, Zone-I, 9.002KA
4) Details of physically damaged equipment: Y phase conductor between Tower no. 224 and 225 snapped.
5) Immediate corrective/system normalization steps performed: 220KV B/C at DSIIDC put on and load normalized.
6) Any other relevant information: Supply of Narela failed at DSIIDC Bawana end.
Regards, Delhi SLDC |
20220908145313 | 2022/09/08 14:53:14 | 1) Name of the substation and Time: Bawana
2) Name of element tripped/restored: At 13:20Hrs
315MVA ICT-4 tripped on PRV, OTI WTI. Grid staff has reported fire in control cable which is under control now.
No load was affected.
3) Relay Annunciation: na
4) Details of physically damaged equipment: na
5) Immediate corrective/system normalization steps performed: na
6) Any other relevant information: na
Regards, Delhi SLDC |
20220906142436 | 2022/09/06 14:24:37 | 1) Name of the substation and Time: 220KV NARELLA 13.58
2) Name of element tripped/restored: 220KV MANDOLA CKT-2
3) Relay Annunciation: NA
4) Details of physically damaged equipment: NA
5) Immediate corrective/system normalization steps performed: NA
6) Any other relevant information: NA
Regards, Delhi SLDC |
20220906142225 | 2022/09/06 14:22:25 | 1) Name of the substation and Time: 220kv narella 12.09
2) Name of element tripped/restored: 220kv mandola ckt-1 and 2
3) Relay Annunciation: 220kv mandola ckt-1
Z1 ,RPH,7.3037 KM
220KV MANDOLA CKT-2
86 AB ,OC,R PH
4) Details of physically damaged equipment: NA
5) Immediate corrective/system normalization steps performed: NA
6) Any other relevant information: NA
Regards, Delhi SLDC |
20220906002612 | 2022/09/06 00:26:12 | 1) Name of the substation and Time: At23:23 HRS
400KV MUNDKA
2) Name of element tripped/restored: 160MVA-II Energised
3) Relay Annunciation: -
4) Details of physically damaged equipment: -
5) Immediate corrective/system normalization steps performed: -
6) Any other relevant information: 160 MVA-II Energised
Regards, Delhi SLDC |
20220905213904 | 2022/09/05 21:39:05 | 1) Name of the substation and Time: At 19:18 Hrs.400 KV Mundka
2) Name of element tripped/restored: 315 MVA ICT#3,220 KV Peeragarhi Ckt-1 and 160MVA-2
3) Relay Annunciation: Buchholz,Distance Protection and w/o indication
4) Details of physically damaged equipment: R-Y-B Phase bushing of 400KV side and R-Y Phase bushing 220KV side of 315MVA ICT-3
5) Immediate corrective/system normalization steps performed: load of 220 kv wazirpur s/stn shifted to 220 kv Shalimar bagh
6) Any other relevant information: Affected load approx. 200 MW for 05 Min.
Regards, Delhi SLDC |
20220902173515 | 2022/09/02 17:35:16 | 1) Name of the substation and Time: At 17:19 HRS
220KV ParkStreet
2) Name of element tripped/restored: 100 MVA,220/33KV Tx No-4 ,TAL Make is energized in replacement of Faulty 100 MVA,220/33KV Tx No-4 of BHEL make which was went faulty on dated 30.05.2022 at 17:39 HRS
3) Relay Annunciation: -
4) Details of physically damaged equipment: -
5) Immediate corrective/system normalization steps performed: -
6) Any other relevant information: Transformer is charged on no load
Regards, Delhi SLDC |
20220902142325 | 2022/09/02 14:23:25 | 1) Name of the substation and Time: 220kV Geeta colny, at 13:55 Hrs
2) Name of element tripped/restored: -
3) Relay Annunciation: Revised information :-Relay operated as per operation staff
On 100 MVA-II- HV O/C and LV O/C.
4) Details of physically damaged equipment: 33kV I/C-II will be under break down as Circuit Breaker problem,It is required to replaced as per DM(T) G. clny
5) Immediate corrective/system normalization steps performed: 100 MVA Tx. -II has been energized on no load at 13:55 Hrs
6) Any other relevant information: NIL
Regards, Delhi SLDC |
20220902132034 | 2022/09/02 13:20:34 | 1) Name of the substation and Time: 220 kV Geeta colny, at 12:52 Hrs
2) Name of element tripped/restored: 100 MVA Tx. II along with 33 kV I/C-II tripped
3) Relay Annunciation: On 100MVA-II- 86, WTI, OTI, HV and LV.
On 33kV I/C-II- 86 (Inter tripping)
4) Details of physically damaged equipment: -
5) Immediate corrective/system normalization steps performed: 33kV bus-coupler put on and system normalized at 12:55 hrs
6) Any other relevant information: Load effected approx. 45 MW for 03 minuts
Regards, Delhi SLDC |
20220902085047 | 2022/09/02 08:50:48 | 1) Name of the substation and Time: IP
2) Name of element tripped/restored: At 06:32Hrs 33KV I/C-II tripped on O/C Y and B-phase with the tripping of 33KV Bay 7(Exhibition-3) which tripped on O/C R-phase.
Grid staff has reported electrocution of monkey.
Load affected was 29MW.
At 07:10Hrs 33KV I/C-II charged and load normalised.
3) Relay Annunciation: na
4) Details of physically damaged equipment: na
5) Immediate corrective/system normalization steps performed: na
6) Any other relevant information: na
Regards, Delhi SLDC |
20220901185434 | 2022/09/01 18:54:35 | 1) Name of the substation and Time: Najafgarh
2) Name of element tripped/restored: At 18:30Hrs 66KV I/C I,II,III and IV tripped on E/F with the tripping of 66KV Nangloi which tripped on O/C YB-phase E/F.
Load affected was 260MW.
At 18:40Hrs 66KV I/C I,II,III and IV charged and load normalised.
3) Relay Annunciation: na
4) Details of physically damaged equipment: na
5) Immediate corrective/system normalization steps performed: na
6) Any other relevant information: na
Regards, Delhi SLDC |
20220830191359 | 2022/08/30 19:14:01 | 1) Name of the substation and Time: 220kv sariataviahr 18.11
2) Name of element tripped/restored: 220kv SVR-MBAGH LINE
3) Relay Annunciation: NA
4) Details of physically damaged equipment: NA
5) Immediate corrective/system normalization steps performed: NA
6) Any other relevant information: NA
Regards, Delhi SLDC |
20220830175110 | 2022/08/30 17:51:11 | 1) Name of the substation and Time: 220KV Maharanibagh 17.21
2) Name of element tripped/restored: 220KV Maharanibagh -Saritavihar
3) Relay Annunciation: zone 3,R ph ,7.3 km ,If=13 ka
4) Details of physically damaged equipment: NA
5) Immediate corrective/system normalization steps performed: NA
6) Any other relevant information: AT 22O KV SVR END RELAYS NOTICED :ZONE1 ,r PH,3.36 KM
Regards, Delhi SLDC |
20220830174226 | 2022/08/30 17:42:27 | 1) Name of the substation and Time: 220kv geeta colony 17.21
2) Name of element tripped/restored: 220KV Buscoupler
3) Relay Annunciation: 86, E/F
4) Details of physically damaged equipment: NA
5) Immediate corrective/system normalization steps performed: 17.30 hrs load restored
aprox 48 mw effected
6) Any other relevant information: bypl conformed no shedding at theire end
Regards, Delhi SLDC |
20220830002947 | 2022/08/30 00:29:47 | 1) Name of the substation and Time: 220kV Dwarka, at 18:36 Hrs
2) Name of element tripped/restored: 220kV Dwarka-Naraina Ckt-1
3) Relay Annunciation: -
4) Details of physically damaged equipment: -
5) Immediate corrective/system normalization steps performed: -
6) Any other relevant information: Energized at 00:18 Hrs dated 30.08.2022 and load has been taken .
Regards, Delhi SLDC |
20220830002414 | 2022/08/30 00:24:15 | 1) Name of the substation and Time: 220 KV Dwarka, at 18:36 Hrs.
2) Name of element tripped/restored: 220kV Dwarka-Naraina Ckt-1
3) Relay Annunciation: -
4) Details of physically damaged equipment: -
5) Immediate corrective/system normalization steps performed: -
6) Any other relevant information: Energized at 00:18 hrs dated 30.08.2022
Regards, Delhi SLDC |
20220829214825 | 2022/08/29 21:48:26 | 1) Name of the substation and Time: 220kV Dwarka, at 18:36 Hrs
2) Name of element tripped/restored: 220kV Naraina-Dwarka ckt-I tripped both end
3) Relay Annunciation: At Naraina end-A/R lockout, 80 BC-1, Zone-1, 86 AB,86 X, 86 ABC.
At Dwarka end-Differential protection operated, fault location-8.7 kM, fault phase Current-15.3 kA.
4) Details of physically damaged equipment: As per AM(T) Narain, OPGW wire has been broken , massage given at 21:00 Hrs
5) Immediate corrective/system normalization steps performed: -
6) Any other relevant information: No load effected
Regards, Delhi SLDC |
20220829123838 | 2022/08/29 12:38:39 | 1) Name of the substation and Time: 440KV Substation, Bamnauli, 12:20
2) Name of element tripped/restored: 220KV PPK-I, Ckt-II
3) Relay Annunciation: 86T, 86A, 86B, 86C, Zone-I, R-Phase
4) Details of physically damaged equipment: NA
5) Immediate corrective/system normalization steps performed: NA
6) Any other relevant information: CB is already under OFF Position at PPK-I end.
Regards, Delhi SLDC |
20220827000844 | 2022/08/27 00:08:45 | 1) Name of the substation and Time: 220kV Geeta Clny, at 22:05 Hrs
2) Name of element tripped/restored: 100 MVA Tx. I and II alongwith 33kV I/C-I and II
3) Relay Annunciation: On 100 MVA Tx I-E/F, 86, IInd harmonic relay LV., On 100MVA Tx. II-86, On 33kV I/C-I- O/C, E/F ,86, On 33kV I/C-II- O/C ,86
4) Details of physically damaged equipment: 33kV I/C-I- R-Phase CB pole damaged.
5) Immediate corrective/system normalization steps performed: Load has been transfered by BYPL
6) Any other relevant information: Approx. 98MW load effected, 100 MVA Tx-II alongwith 33kV-I/c-II and 33kV Bus-coupler are energized and system is normalized at 22:50Hrs (Execpt 100 MVA Tx-I alongwith 33kV-I/c-I)
Regards, Delhi SLDC |
20220826190407 | 2022/08/26 19:04:08 | 1) Name of the substation and Time: At 17:42 HRS 220KV Narela
2) Name of element tripped/restored: 20MVA-I with 11KV I/C No-I
3) Relay Annunciation: y-phase differential REf LV and HV,86
4) Details of physically damaged equipment: Y-Ph LA damaged informed by operation staf at 18:53Hrs
5) Immediate corrective/system normalization steps performed: -
6) Any other relevant information: -
Regards, Delhi SLDC |
20220826184417 | 2022/08/26 18:44:18 | 1) Name of the substation and Time: At 17:42 HRS
220KV Narela
2) Name of element tripped/restored: 20MVA-I with 11KV I/C No-I
3) Relay Annunciation: y-phase differential REf LV and HV,86
4) Details of physically damaged equipment: -
5) Immediate corrective/system normalization steps performed: At 17:56 HRS
11KV Bus section close and system became normal
6) Any other relevant information: Approx 5MW load affected
Regards, Delhi SLDC |
20220826064305 | 2022/08/26 06:43:06 | 1) Name of the substation and Time: 220KV Dial, 02:47
2) Name of element tripped/restored: 02:47 (26.08.2022)
3) Relay Annunciation: N/A
4) Details of physically damaged equipment: N/A
5) Immediate corrective/system normalization steps performed: N/A
6) Any other relevant information: 160MVA-I along with 66KV I/C-I restored
Regards, Delhi SLDC |
20220825231647 | 2022/08/25 23:16:48 | 1) Name of the substation and Time: 220kV dial
2) Name of element tripped/restored: 66 kv incomer-1
3) Relay Annunciation: NA
4) Details of physically damaged equipment: NA
5) Immediate corrective/system normalization steps performed: NA
6) Any other relevant information: ON 66KV ONCOMMER B ph current not showing and hummimg noise coming out. Mnagaer (T) ,Dial informed to put off 66 kv incommer-1
Regards, Delhi SLDC |
20220824160300 | 2022/08/24 16:03:01 | 1) Name of the substation and Time: At 15:56 HRS
220KV PPK-I
2) Name of element tripped/restored: 220KV DWARKA Ckt-II
3) Relay Annunciation: -
4) Details of physically damaged equipment: -
5) Immediate corrective/system normalization steps performed: -
6) Any other relevant information: 220KV DWARKA Ckt-II energized
Regards, Delhi SLDC |
20220824160259 | 2022/08/24 16:03:00 | 1) Name of the substation and Time: At 15:56 HRS
220KV PPK-I
2) Name of element tripped/restored: 220KV DWARKA Ckt-II
3) Relay Annunciation: -
4) Details of physically damaged equipment: -
5) Immediate corrective/system normalization steps performed: -
6) Any other relevant information: 220KV DWARKA Ckt-II energized
Regards, Delhi SLDC |
20220824155227 | 2022/08/24 15:52:28 | 1) Name of the substation and Time: At 220kV PPK-I, 15:30Hrs
2) Name of element tripped/restored: -
3) Relay Annunciation: -
4) Details of physically damaged equipment: -
5) Immediate corrective/system normalization steps performed: System is normalized with load taken on 220kV Bamnouli Ckt-II ( excepted 100 MVA Tx.-I)
6) Any other relevant information: -
Regards, Delhi SLDC |
20220824154820 | 2022/08/24 15:48:21 | 1) Name of the substation and Time: At 220kV PPK-I, 14:47 Hrs.
2) Name of element tripped/restored: 1) 220kV Dwarka Ckt- II .
2) 100 MVA Tx. I
3 At drarka end,PPK-I Ckt-II tripped on diffential stage-1, faulty A-B Phase
3) Relay Annunciation: 1) 220kV Dwarka Ckt- II tripped without indcation.
2) 100 MVA Tx. I tripped on buchholze alam, buchholze trip, 86 AB trip.
4) Details of physically damaged equipment: NIL
5) Immediate corrective/system normalization steps performed: DMRC and instructed to load transfer to another grid imediatly
6) Any other relevant information: Approx. 76 MW load effected
Regards, Delhi SLDC |
20220824121319 | 2022/08/24 12:13:20 | 1) Name of the substation and Time: At 11:40 HRS
220KV Parkstreet
2) Name of element tripped/restored: 220/66 KV,100MVA Tx No-II
3) Relay Annunciation: -
4) Details of physically damaged equipment: -
5) Immediate corrective/system normalization steps performed: -
6) Any other relevant information: 220/66 KV,100MVA Tx No-II Energized at no LOAD
Regards, Delhi SLDC |
20220822192856 | 2022/08/22 19:28:56 | 1) Name of the substation and Time: 400KV Bawana, 18:43
2) Name of element tripped/restored: 400KV Maharani Bagh Ckt.-I
3) Relay Annunciation: R-Phase Trip, Y-Phase Trip, Zone-2 and 3, Fault Location - 40.45Km, Fault Current, R-Phase - 8.708KA and Y-Phase - 7.716KA.
4) Details of physically damaged equipment: Nil
5) Immediate corrective/system normalization steps performed: Nil
6) Any other relevant information: Nil
Regards, Delhi SLDC |
20220821155216 | 2022/08/21 15:52:17 | 1) Name of the substation and Time: 220kv PPG 15:45
2) Name of element tripped/restored: 220KV PPG-GC CKT-2 restored
3) Relay Annunciation: na
4) Details of physically damaged equipment: na
5) Immediate corrective/system normalization steps performed: na
6) Any other relevant information: NA
Regards, Delhi SLDC |
20220821154941 | 2022/08/21 15:49:42 | 1) Name of the substation and Time: 220kv ppg 14.57
2) Name of element tripped/restored: 220kb geeta colony -ppg ckt -2
3) Relay Annunciation: z1 R ph 4.028 kn
cvt appearing at PPG end
4) Details of physically damaged equipment: na
5) Immediate corrective/system normalization steps performed: na
6) Any other relevant information: na
Regards, Delhi SLDC |
20220819000552 | 2022/08/19 00:05:53 | 1) Name of the substation and Time: 220kV SOW, 22:15 Hrs.
2) Name of element tripped/restored: -
3) Relay Annunciation: -
4) Details of physically damaged equipment: staff visited yard, found kite thread and birdage on bus- bar and on 66kV I/C- IV CT clamp and Y-Ph Bus-I dropper juper snaped and Y-Ph disc damaged
5) Immediate corrective/system normalization steps performed: -
6) Any other relevant information: At 23:22Hrs:- System is normal except 66kV I/C- IV with Bus-I
Regards, Delhi SLDC |
20220818234633 | 2022/08/18 23:46:34 | 1) Name of the substation and Time: 220kV SOW, at 22:15 Hrs
2) Name of element tripped/restored: 66kV I/C-IV tripped and staff visited yard, found kite thread and birdage on bus- bar and on 66kV I/C- IV CT clamp
3) Relay Annunciation: Y and B- Ph E/F, O/C
4) Details of physically damaged equipment: Y-Ph Bus-I dropper juper snaped and Y-Ph disc damaged
5) Immediate corrective/system normalization steps performed: System is normalized at 23:22 hrs.
6) Any other relevant information: Approx. 100 MW load effected
Regards, Delhi SLDC |
20220818184519 | 2022/08/18 18:45:27 | 1) Name of the substation and Time: At 18:40 HRS
220KV Mehrauli
2) Name of element tripped/restored: 220KV TUGB-MLI-I
3) Relay Annunciation: -
4) Details of physically damaged equipment: -
5) Immediate corrective/system normalization steps performed: -
6) Any other relevant information: 220KV TUGB-MLI-I restored
Regards, Delhi SLDC |
20220818003855 | 2022/08/18 00:38:55 | 1) Name of the substation and Time: 220 kv Saritavihar 00.21 hrs
2) Name of element tripped/restored: 220kv Saritavihar-Maharanaibagh ckt both end CB put off
3) Relay Annunciation: NA
4) Details of physically damaged equipment: Heavy sparking on tower at Gali no.11 jakeer Nagar ,Reopreted by loacal resident and same was conformed by AM(T),mtc Saritaviharr
5) Immediate corrective/system normalization steps performed: ckt both end CB put off
6) Any other relevant information: NA
Regards, Delhi SLDC |
20220817153407 | 2022/08/17 15:34:07 | 1) Name of the substation and Time: 220kV Mehrauli, at 13:35 Hrs.
2) Name of element tripped/restored: -
3) Relay Annunciation: -
4) Details of physically damaged equipment: -
5) Immediate corrective/system normalization steps performed: -
6) Any other relevant information: Normalized at 13:35Hrs
Regards, Delhi SLDC |
20220817143505 | 2022/08/17 14:35:06 | 1) Name of the substation and Time: 220kV Mehrauli, at 13:07 Hrs.
2) Name of element tripped/restored: 220kV Vasant Kunj Ckt-I tripped from Vsk end
3) Relay Annunciation: O/C, Y-Phase, master trip and auto trip
4) Details of physically damaged equipment: -
5) Immediate corrective/system normalization steps performed: system is normalized by closing 220 kV Vasant Kunj Ckt-II
6) Any other relevant information: Approx. 63 MW load is effected.
Regards, Delhi SLDC |
20220817084650 | 2022/08/17 08:46:51 | 1) Name of the substation and Time: 220kv Geta Colony @ 00:05Hrs
2) Name of element tripped/restored: 100 MVA Tx. II charged on No Load @ 00:05 Hrs.
3) Relay Annunciation: na
4) Details of physically damaged equipment: na
5) Immediate corrective/system normalization steps performed: na
6) Any other relevant information: na
Regards, Delhi SLDC |
20220817084425 | 2022/08/17 08:44:25 | 1) Name of the substation and Time: 220kv Geeta Colony
2) Name of element tripped/restored: 33kv Incomer -1 and 33kv Bus-1 charged @ 23:30 Hrs
3) Relay Annunciation: na
4) Details of physically damaged equipment: na
5) Immediate corrective/system normalization steps performed: na
6) Any other relevant information: na
Regards, Delhi SLDC |
20220817084245 | 2022/08/17 08:42:46 | 1) Name of the substation and Time: 220kv Geeta Colony
2) Name of element tripped/restored: 33kv Incomer -1 and 33kv Bus-1 charged @ 23:30 Hrs
3) Relay Annunciation: na
4) Details of physically damaged equipment: na
5) Immediate corrective/system normalization steps performed: na
6) Any other relevant information: na
Regards, Delhi SLDC |
20220816233748 | 2022/08/16 23:37:49 | 1) Name of the substation and Time: Geeta Colony
2) Name of element tripped/restored: At 23:30Hrs 33KV I/C-1 charged on 33KV Bus-I.
3) Relay Annunciation: na
4) Details of physically damaged equipment: na
5) Immediate corrective/system normalization steps performed: na
6) Any other relevant information: na
Regards, Delhi SLDC |
20220816231422 | 2022/08/16 23:14:23 | 1) Name of the substation and Time: SOW
2) Name of element tripped/restored: 220KV Mandaula ckt-I charged at 23:11Hrs.
3) Relay Annunciation: na
4) Details of physically damaged equipment: na
5) Immediate corrective/system normalization steps performed: na
6) Any other relevant information: na
Regards, Delhi SLDC |
20220816225559 | 2022/08/16 22:56:00 | 1) Name of the substation and Time: SOW
2) Name of element tripped/restored: At 18:44Hrs supply fail of 220KV Mandaula ckt-II and 220KV Mandaula ckt-III.
220KV Mandaula ckt-I tripped on Z-1 0.1km BC-phase
Ib=13.3KA Ic=13.5KA.
No load was affected
At 19:48Hrs 220KV Mandaula ckt-II closed and at 19:50Hrs 220KV Mandaula ckt-III closed from Mandaula end.
3) Relay Annunciation: na
4) Details of physically damaged equipment: na
5) Immediate corrective/system normalization steps performed: na
6) Any other relevant information: na
Regards, Delhi SLDC |
20220816223936 | 2022/08/16 22:39:37 | 1) Name of the substation and Time: Geeta Colony
2) Name of element tripped/restored: At 17:15Hrs 100MVA T/F-1 and 100MVA T/F-2 tripped.
Y-phase Breaker pole of 33KV I/C-II damaged. On yard inspection by grid staff kite threads found on 220KV Bushing of R and B phase Bushings of 100MVA T/F-1.
Relay on 100MVA T/F-1 are O/C B-phase HV LV REF.
Relay on 100MVA T/F-2 are O/C differential.
Load affected was 52MW.
Discoms were asked to shift their load.
At 19:03Hrs 100MVA T/F-1 charged at no load.
At 20:06Hrs 33KV Bus-II back charged by 33KV Geeta colony ckt-I to feed 33KV Krishna Nagar ckt-I.
Presently no load is affected and 100MVA T/-F-2, 33KV I/C-II ,33KV I/C-I and 33KV Bus-I is under breakdown and grid staff is attending the same.
3) Relay Annunciation: na
4) Details of physically damaged equipment: na
5) Immediate corrective/system normalization steps performed: na
6) Any other relevant information: na
Regards, Delhi SLDC |
20220816174507 | 2022/08/16 17:45:08 | 1) Name of the substation and Time: 220kv South of Wazirabad
2) Name of element tripped/restored: 66kv Incomer- I, II, III and IV Restored @ 17:10 which were tripped @ 16:50 on Relays : O/C, E/F
3) Relay Annunciation: o/c, e/f
4) Details of physically damaged equipment: na
5) Immediate corrective/system normalization steps performed: na
6) Any other relevant information: na
Regards, Delhi SLDC |
20220816171216 | 2022/08/16 17:12:17 | 1) Name of the substation and Time: 220kV SOW, at 16:00 Hrs.
2) Name of element tripped/restored: 220kV Bus-bar tripped alongwith 220kV Mandola Ckt-I and III, G.clony-I, kashmerigate-II, Gopalpur Ckt-I, 100 MVA Tx-I,II and III and 160 MVA Tx.
CVT appeared from 220kV Mandola Ckt I and III
220kV Mandola Ckt- II and IV tripped from mandola Grid
3) Relay Annunciation: Bus-bar protection operated
4) Details of physically damaged equipment: -
5) Immediate corrective/system normalization steps performed:
System is normalized at 16:24 Hrs. except 220kV Mandola Ckt II and IV.
6) Any other relevant information: Approx. 227 MW load affected
Regards, Delhi SLDC |
20220816144133 | 2022/08/16 14:41:34 | 1) Name of the substation and Time: At 220kV Geeta Clny, 14:50 Hrs.
2) Name of element tripped/restored: 33kV B/C tripped
3) Relay Annunciation: 30CB auto tripped, 86
4) Details of physically damaged equipment: -
5) Immediate corrective/system normalization steps performed: Load has been taken on 33lV I/C-II
6) Any other relevant information: Approx. 50MW load affected only 5 Minuts, system is normalized at 14:55 Hrs.
Regards, Delhi SLDC |
20220815173339 | 2022/08/15 17:33:40 | 1) Name of the substation and Time: Patparganj
2) Name of element tripped/restored: At 15:18Hrs 220KV Geeta colony ckt-I and II tripped on E/F, CVT of 220KV Geeta colony ckt-II available at Patparganj end.
Load affected was approx. 130MW.
Discoms were asked to shift their load.
At 15:25Hrs 220KV Geeta Colony ckt-II tried but did not hold.
At 15:32Hrs 220KV Gazipur ckt tried but tripped on R-phase differential.
At 15:57Hrs 100MVA 220/33KV T/F-1 charged after shifting on 220KV Bus-II.
At 16:03Hrs 100MVA 220/66KV T/F-1 charged after shifting on 220KV Bus-II.
At 16:38Hrs 220KV Geeta colony ckt-II charged from Geeta Colony side.
3) Relay Annunciation: na
4) Details of physically damaged equipment: na
5) Immediate corrective/system normalization steps performed: na
6) Any other relevant information: na
Regards, Delhi SLDC |
20220815162039 | 2022/08/15 16:20:39 | 1) Name of the substation and Time: Naraina
2) Name of element tripped/restored: 220KV Dwarka ckt-II tripped at 15:40Hrs on Line Differential BC-phase from both the ends.
Load affected was 73MW.
Load normalised through 220KV Ridge Valley ckt at 15:50Hrs.
At 16:10Hrs 220KV Dwarka ckt-I and ckt-II charged.
3) Relay Annunciation: na
4) Details of physically damaged equipment: na
5) Immediate corrective/system normalization steps performed: na
6) Any other relevant information: na
Regards, Delhi SLDC |
20220815153033 | 2022/08/15 15:30:33 | 1) Name of the substation and Time: Naraina
2) Name of element tripped/restored: 220KV Bus-I Bus Bar relay operated on Z-1 5.3km at 14:34Hrs.
Load affected was 78MW.
Load normalised through 220KV Dwarka ckt-II at 14:50Hrs.
3) Relay Annunciation: na
4) Details of physically damaged equipment: na
5) Immediate corrective/system normalization steps performed: na
6) Any other relevant information: na
Regards, Delhi SLDC |
20220815152445 | 2022/08/15 15:24:45 | 1) Name of the substation and Time: SOW
2) Name of element tripped/restored: 220KV Mandaula ckt-III charged at 14:47Hrs.
3) Relay Annunciation: na
4) Details of physically damaged equipment: na
5) Immediate corrective/system normalization steps performed: na
6) Any other relevant information: na
Regards, Delhi SLDC |
20220815151948 | 2022/08/15 15:19:48 | 1) Name of the substation and Time: SOW
2) Name of element tripped/restored: 220KV Mandaula ckt-III charged at 14:47Hrs.
3) Relay Annunciation: na
4) Details of physically damaged equipment: na
5) Immediate corrective/system normalization steps performed: na
6) Any other relevant information: na
Regards, Delhi SLDC |
20220815151731 | 2022/08/15 15:17:32 | 1) Name of the substation and Time: Bawana
2) Name of element tripped/restored: 400KV Maharani Bagh ckt-I charged at 14:04Hrs.
3) Relay Annunciation: na
4) Details of physically damaged equipment: na
5) Immediate corrective/system normalization steps performed: na
6) Any other relevant information: na
Regards, Delhi SLDC |
20220815124717 | 2022/08/15 12:47:18 | 1) Name of the substation and Time: Bawana
2) Name of element tripped/restored: 400KV Maharani Bagh ckt-I tripped on Z-1 RY-phase 29km at 12:33Hrs.
Ir=11.4KA Iy=10.3KA.
No load was affected.
3) Relay Annunciation: na
4) Details of physically damaged equipment: na
5) Immediate corrective/system normalization steps performed: na
6) Any other relevant information: na
Regards, Delhi SLDC |
20220815121653 | 2022/08/15 12:16:54 | 1) Name of the substation and Time: SOW
2) Name of element tripped/restored: 220KV Mandaula ckt-III tripped on Z-1 RY-phase 2.21km Ir=10.8KA
Iy=11.2KA at 11:27Hrs.
No load was affected.
3) Relay Annunciation: na
4) Details of physically damaged equipment: na
5) Immediate corrective/system normalization steps performed: na
6) Any other relevant information: na
Regards, Delhi SLDC |
20220814162602 | 2022/08/14 16:26:02 | 1) Name of the substation and Time: IP
2) Name of element tripped/restored: 33KV I/C-3 tripped on B-phase O/C E/F at 14:43Hrs.
B-phase Bus-II isolator of 33KV I/C-3 got damaged.
Load affected was 48MW.
Discoms had shifted their load.
At 15:32Hrs 33KV B/C closed.
3) Relay Annunciation: na
4) Details of physically damaged equipment: na
5) Immediate corrective/system normalization steps performed: na
6) Any other relevant information: na
Regards, Delhi SLDC |
20220813220045 | 2022/08/13 22:00:46 | 1) Name of the substation and Time: 220kV Gopal Pur, at 21:52Hrs
2) Name of element tripped/restored: 220kV Mandola Ckt-II
3) Relay Annunciation: -
4) Details of physically damaged equipment: -
5) Immediate corrective/system normalization steps performed: -
6) Any other relevant information: 220kV Mandola Ckt-II charged and taken the load on Ckt at 21:52 Hrs and 220kV SOW Ckt-I put off.System is normalized.
Regards, Delhi SLDC |
20220813191312 | 2022/08/13 19:13:13 | 1) Name of the substation and Time: 220kV Gopalpur, at 18:48hrs
2) Name of element tripped/restored: 220kV Mandola Ckt-II tripped
3) Relay Annunciation: Differential trip relay operated, R and Y-Ph trip, 186 Master relay, fault current A-Ph-97A, B-Ph- 478A, C-Ph-492A,
4) Details of physically damaged equipment: NIL
5) Immediate corrective/system normalization steps performed: Load taken immediate through 220kV Wazirabad-Gopalpur Ckt-I at 18:50Hrs.
6) Any other relevant information: Approx. Load affected-138MW for 2 minuts only
Regards, Delhi SLDC |
20220812081730 | 2022/08/12 08:17:31 | 1) Name of the substation and Time: Okhla
2) Name of element tripped/restored: At 06:25Hrs 100MVA 220/33KV T/F-3 tripped on 86 TC faulty, 33KV I/C-4 tripped on RYB-phase O/C, 33KV I/C-5 tripped without indication along with this 33KV Tughlakabad ckt-I and II and 33KV East of Kailash also tripped.
Load affected was 57MW.
33KV I/C-5 charged at 06:55Hrs and load normalised.
33KV I/C-4 charged at 06:58Hrs.
100MVA 220/33KV T/F-3 charged at 08:07Hrs.
3) Relay Annunciation: na
4) Details of physically damaged equipment: na
5) Immediate corrective/system normalization steps performed: na
6) Any other relevant information: na
Regards, Delhi SLDC |
20220811205024 | 2022/08/11 20:50:25 | 1) Name of the substation and Time: Geeta Colony
2) Name of element tripped/restored: 100MVA T/F-1 and 100MVA T/F-2 tripped on O/C 86 at 18:48Hrs.
B-phase bus isolator of 33KV Shakarpur got damaged.
Load affected was 75MW.
Discoms were asked to shift their load.
100MVA T/F-1 and 100MVA T/F-2 charged at 19:15Hrs.
3) Relay Annunciation: na
4) Details of physically damaged equipment: na
5) Immediate corrective/system normalization steps performed: na
6) Any other relevant information: na
Regards, Delhi SLDC |
20220809190723 | 2022/08/09 19:07:24 | 1) Name of the substation and Time: 220KV IP
2) Name of element tripped/restored: 220KV IP-Patparganj-I
3) Relay Annunciation: N/A
4) Details of physically damaged equipment: N/A
5) Immediate corrective/system normalization steps performed: N/A
6) Any other relevant information: Circuit restored at 17:30Hrs.
Regards, Delhi SLDC |
20220809164235 | 2022/08/09 16:42:35 | 1) Name of the substation and Time: At 15:54 HRS
220KV Shalimar bagh
2) Name of element tripped/restored: 100MVA-III with 33KV I/C No-III and 20MVA with 11KV I/C
3) Relay Annunciation: 100MVA-96,86,O/C-Y phase
20MVA-Differential 87T,R,Y and b phase,86
4) Details of physically damaged equipment: 33KV YPhase CT Blast/burned/Damaged
5) Immediate corrective/system normalization steps performed: Load transfered by TPDDL
6) Any other relevant information: Load affected approx 53 MW
Regards, Delhi SLDC |
20220809141526 | 2022/08/09 14:15:27 | 1) Name of the substation and Time: At 10:50 HRS
220KV IP
2) Name of element tripped/restored: Due to Problem of CB operation at 220KV IP-Pataprganj ckt-I
3) Relay Annunciation: -
4) Details of physically damaged equipment: -
5) Immediate corrective/system normalization steps performed: -
6) Any other relevant information: 220KV IP-PPG ckt-I is not available in network. PTW issued at 11:20 HRS to maintenanace staff for 220KV CB rectification at 220KV IP substation
Regards, Delhi SLDC |
20220809125847 | 2022/08/09 12:58:48 | 1) Name of the substation and Time: At 11:21 HRS
220KV Substation Gopalpur
2) Name of element tripped/restored: 220KV Mandola CKT-I
3) Relay Annunciation: -
4) Details of physically damaged equipment: -
5) Immediate corrective/system normalization steps performed: -
6) Any other relevant information: 220KV Mandola-I charged and load taken
Regards, Delhi SLDC |
20220809125557 | 2022/08/09 12:55:58 | 1) Name of the substation and Time: At 09:56 HRS
220KV Gopalpur
2) Name of element tripped/restored: 220KV Mandola CKT-I tripped at Gopalpur end only
3) Relay Annunciation: R-Phase differential operated
4) Details of physically damaged equipment: -
5) Immediate corrective/system normalization steps performed: At 09:56 HRs
220KV SOW-CKT-II ch.arged and systen became normal
6) Any other relevant information: Load affected approx 132 MW for 1 minute only
Regards, Delhi SLDC |
20220806234701 | 2022/08/06 23:47:02 | 1) Name of the substation and Time: At 19:25Hrs., 220KV kanjhawala
2) Name of element tripped/restored: 220KV Kanjhawala-Bawana Circuit - I and II, charged
3) Relay Annunciation: Nil
4) Details of physically damaged equipment: Nil
5) Immediate corrective/system normalization steps performed: Nil
6) Any other relevant information: Nil
Regards, Delhi SLDC |
20220806141226 | 2022/08/06 14:12:27 | 1) Name of the substation and Time: Kanjhawala
13:18Hrs.
2) Name of element tripped/restored: 220KV Bawana ckt-I tripped on RB-phase Z-2 25.4km
Supply fail of 220KV Bawana ckt-II.
Relay at Bawana end on 220KV Kanjhawala ckt-I are R-phase Z-1 SOTF 8.3km fault current 4.8KA.
Relay at Bawana end on 220KV Kanjhawala ckt-II are o/c 86 26.27km.
Load affected was 120MW.
Load normalised through 220KV Mundka ckt at 13:22Hrs.
3) Relay Annunciation: na
4) Details of physically damaged equipment: na
5) Immediate corrective/system normalization steps performed: na
6) Any other relevant information: na
Regards, Delhi SLDC |
20220806075424 | 2022/08/06 07:54:25 | 1) Name of the substation and Time: 220 KV S.O.W. At-01:16 Hrs
2) Name of element tripped/restored: 100 MVA Tr-I with 66kV I/C-I tripped
3) Relay Annunciation: Magnitude current -138.3A,Ic-39.3Amp,REF HV,REF LV 71.62Amp.REF LV2-4.610Amp
4) Details of physically damaged equipment: -
5) Immediate corrective/system normalization steps performed: Load NO Effected
6) Any other relevant information: Load has been taken to other transformer.
Regards, Delhi SLDC |
20220804073312 | 2022/08/04 07:33:13 | 1) Name of the substation and Time: Rajghat
2) Name of element tripped/restored: 100MVA T/F-1 tripped on differential RYB-phase LV REF at 04:50Hrs.
No load was affected.
3) Relay Annunciation: na
4) Details of physically damaged equipment: na
5) Immediate corrective/system normalization steps performed: na
6) Any other relevant information: na
Regards, Delhi SLDC |
20220802215843 | 2022/08/02 21:58:44 | 1) Name of the substation and Time: At 21:40Hrs
220 Kanjhawla
2) Name of element tripped/restored: 100 MVA -I and II
charged at 21:18 and 21:40 Hrs resp.
3) Relay Annunciation: --
4) Details of physically damaged equipment: -
5) Immediate corrective/system normalization steps performed: -
6) Any other relevant information: -
Regards, Delhi SLDC |
20220802215526 | 2022/08/02 21:55:27 | 1) Name of the substation and Time: At 20:07 hrs. 220 KV Kanjhawala
2) Name of element tripped/restored: 100 MVA -I,II Tripped along with 66 KV I/C-I,II
3) Relay Annunciation: 100 MVA-I relay 86 Operated
100 MVA -II relay Any trip,O/C B ph.
4) Details of physically damaged equipment: -
5) Immediate corrective/system normalization steps performed: 66 KV bus coupler close at 20:26Hrs
6) Any other relevant information: Load effected approx 56 MW
Regards, Delhi SLDC |
20220801192652 | 2022/08/01 19:26:53 | 1) Name of the substation and Time: 220kv masjid moth 18.55HR
2) Name of element tripped/restored: 100 mva tr-1 along with i/c 1,2 and 3
3) Relay Annunciation: non dir EF,DIFF B,C 87(1),87(2),87(3) ,86
4) Details of physically damaged equipment: NA
MONKEY ELCTROCUTATED
5) Immediate corrective/system normalization steps performed: 19.10 MASJID MOTH S/STN POWER SUPPLY RESTORED
6) Any other relevant information: 19.10 MASJID MOTH S/STN POWER SUPPLY RESTORED
Regards, Delhi SLDC |
20220801192040 | 2022/08/01 19:20:40 | 1) Name of the substation and Time: 400 kv Teglakabad 18.10
2) Name of element tripped/restored: 220kv RK PURAM D/C NEW Tr cable charged
3) Relay Annunciation: NA
4) Details of physically damaged equipment: NA
5) Immediate corrective/system normalization steps performed: NA
6) Any other relevant information: 18 30 HR LOAD TAKEN ON THIS FEEDER
Regards, Delhi SLDC |
20220801103405 | 2022/08/01 10:34:06 | 1) Name of the substation and Time: At 09:05Hrs, 220kV RPH
2) Name of element tripped/restored: 33kV I/C-II with Half bus-bar tripped due monkey electrocute
3) Relay Annunciation: Y and B-Ph O/C
4) Details of physically damaged equipment: NIL
5) Immediate corrective/system normalization steps performed: 33kV B/c on and system normalized at 09:42 hrs
6) Any other relevant information: 33kV load affected approx. 80MW, 33kV I/C-II energized at 09:52 Hrs
Regards, Delhi SLDC |
20220801103230 | 2022/08/01 10:32:32 | 1) Name of the substation and Time: at 09:05 Hrs, 220KV RPH
2) Name of element tripped/restored: 33KV I/C no-II along with Half bus tripped due to money electrocute
3) Relay Annunciation: Y and B- Phase O/C Relay operated.
4) Details of physically damaged equipment: Nil
5) Immediate corrective/system normalization steps performed: System Normailised at 09:42 Hrs by 33KV B/C CB closed and Load effected approx 80 MW.
6) Any other relevant information: 33KV I/C No-II Enersised at 09:52Hrs.
Regards, Delhi SLDC |
20220801103227 | 2022/08/01 10:32:30 | 1) Name of the substation and Time: at 09:05 Hrs, 220KV RPH
2) Name of element tripped/restored: 33KV I/C no-II along with Half bus tripped due to money electrocute
3) Relay Annunciation: Y and B- Phase O/C Relay operated.
4) Details of physically damaged equipment: Nil
5) Immediate corrective/system normalization steps performed: System Normailised at 09:42 Hrs by 33KV B/C CB closed and Load effected approx 80 MW.
6) Any other relevant information: 33KV I/C No-II Enersised at 09:52Hrs.
Regards, Delhi SLDC |
20220801103226 | 2022/08/01 10:32:27 | 1) Name of the substation and Time: at 09:05 Hrs, 220KV RPH
2) Name of element tripped/restored: 33KV I/C no-II along with Half bus tripped due to money electrocute
3) Relay Annunciation: Y and B- Phase O/C Relay operated.
4) Details of physically damaged equipment: Nil
5) Immediate corrective/system normalization steps performed: System Normailised at 09:42 Hrs by 33KV B/C CB closed and Load effected approx 80 MW.
6) Any other relevant information: 33KV I/C No-II Enersised at 09:52Hrs.
Regards, Delhi SLDC |
20220801103222 | 2022/08/01 10:32:26 | 1) Name of the substation and Time: at 09:05 Hrs, 220KV RPH
2) Name of element tripped/restored: 33KV I/C no-II along with Half bus tripped due to money electrocute
3) Relay Annunciation: Y and B- Phase O/C Relay operated.
4) Details of physically damaged equipment: Nil
5) Immediate corrective/system normalization steps performed: System Normailised at 09:42 Hrs by 33KV B/C CB closed and Load effected approx 80 MW.
6) Any other relevant information: 33KV I/C No-II Enersised at 09:52Hrs.
Regards, Delhi SLDC |
20220731204752 | 2022/07/31 20:47:53 | 1) Name of the substation and Time: 220kv R.K. PURAM
2) Name of element tripped/restored: NEW 220KV FEEDERS 220KV RK PURAM - TUGHLAKABAD ENERGISED @ 20:38 (CKT-I) and 20:39 (CKT-II)
3) Relay Annunciation: NA
4) Details of physically damaged equipment: NA
5) Immediate corrective/system normalization steps performed: NA
6) Any other relevant information: NA
Regards, Delhi SLDC |
20220731182700 | 2022/07/31 18:27:01 | 1) Name of the substation and Time: 220kv Patparganj
2) Name of element tripped/restored: 100 MVA Tx No. III, 220/33kV Restored @ 17:45 Hrs and load taken.
3) Relay Annunciation: na
4) Details of physically damaged equipment: na
5) Immediate corrective/system normalization steps performed: na
6) Any other relevant information: na
Regards, Delhi SLDC |
20220731164343 | 2022/07/31 16:43:44 | 1) Name of the substation and Time: At. 16:07 Hrs, 220kV PPG
2) Name of element tripped/restored: 220/33kV 100 MVA Tx. III
3) Relay Annunciation: RY and B-Ph Differential relay with Master relay operated
4) Details of physically damaged equipment: 33kV R-Ph LA Damaged as per Grid information
5) Immediate corrective/system normalization steps performed: By using B/C load normalized and load affected Approx. 25 MW
6) Any other relevant information: NA
Regards, Delhi SLDC |
20220730161101 | 2022/07/30 16:11:01 | 1) Name of the substation and Time: Lodhi Road
2) Name of element tripped/restored: 11KV I/C-I charged at 15:45Hrs.
3) Relay Annunciation: na
4) Details of physically damaged equipment: na
5) Immediate corrective/system normalization steps performed: na
6) Any other relevant information: na
Regards, Delhi SLDC |
20220730120043 | 2022/07/30 12:00:44 | 1) Name of the substation and Time: Lodhi Road
2) Name of element tripped/restored: 11KV I/C-I and II tripped on O/C RYB-phase with heavy sound and smoke at 10:24Hrs.
Load affected was 7MW.
Discoms have been asked to shift their load.
Presently maintenance staff is attending the fault.
3) Relay Annunciation: na
4) Details of physically damaged equipment: na
5) Immediate corrective/system normalization steps performed: na
6) Any other relevant information: na
Regards, Delhi SLDC |
20220729112205 | 2022/07/29 11:22:06 | 1) Name of the substation and Time: Kashmiri Gate
2) Name of element tripped/restored: 220KV SOW ckt-II tripped at 09:43Hrs.
Relay at SOW end are R and Y-phase Z-1 1.4km fault current 18KA.
Relay at Kashmiri Gate end are R and Y-phase Differential trip.
Load affected was 13MW.
Load normalised at 09:44Hrs through 220KV B/C.
220KV SOW-Kashmiri Gate ckt-II charged at 11:12Hrs.
3) Relay Annunciation: na
4) Details of physically damaged equipment: na
5) Immediate corrective/system normalization steps performed: na
6) Any other relevant information: na
Regards, Delhi SLDC |
20220106122142 | 2022/01/06 12:21:43 | SCADA Data for the Following Sub-Stations/lines/elements are suspect or not available:
1) 220KV testing
2) 220/33 testing
3) -
4) -
5) -
6) -
Regards, Delhi SLDC |
20220718184655 | 2022-07-18 18:46:56 | 1) Name of the substation and Time: Mehrauli
2) Name of element tripped/restored: 100MVA T/F-1 and 100MVA T/F-3 tripped without indication at 18:20Hrs.
Load affected was 150MW (approx).
Load normalised after charging 100MVA T/F-1 and 100MVA T/F-3 at 18:28Hrs.
3) Relay Annunciation: na
4) Details of physically damaged equipment: na
5) Immediate corrective/system normalization steps performed: na
6) Any other relevant information: na
Regards, Delhi SLDC |
20220717212642 | 2022-07-17 21:26:43 | 1) Name of the substation and Time: 20:06Hrs, 220kV SOW
2) Name of element tripped/restored: 100 MVA Tx. I,II and III with 66kV I/c-I, II and III
3) Relay Annunciation: _
4) Details of physically damaged equipment: -
5) Immediate corrective/system normalization steps performed: -
6) Any other relevant information: 100 MVA Tx. I,II and III with 66kV I/c- II and III are energized and 66kV I/C- I is in trip position due to not operated the CB.
Regards, Delhi SLDC |
20220717210836 | 2022-07-17 21:08:37 | 1) Name of the substation and Time: At 19:30Hrs, 220kV SOW
2) Name of element tripped/restored: 100 MVA Tx. I, II and III alongwith 66 KV I/C- I, II and III
3) Relay Annunciation: 100 MVA Tx. I relay operated-O/C YB-Ph, SP-I trip,
66 KV I/C- I relay operated -Y,B -pH, 186
100 MVA Tx. II relay operated-O/C YB-Ph, SP-I trip
66 KV I/C- II relay operated -Y,B -pH, 186
100 MVA Tx. III relay operated-O/C YB-Ph, SP-I trip
66 KV I/C-III relay operated -Y,B -pH, 186
4) Details of physically damaged equipment: NIL
5) Immediate corrective/system normalization steps performed: Load has been shifted to other substation by BYPL
6) Any other relevant information: Load effected approx. 132 MW and 66 KV I/C-I is tripped position
Regards, Delhi SLDC |
20220717202942 | 2022-07-17 20:29:43 | 1) Name of the substation and Time: At 19:50Hrs ,220kV PPG
2) Name of element tripped/restored: 220kV IP ckt-I
3) Relay Annunciation: -
4) Details of physically damaged equipment: -
5) Immediate corrective/system normalization steps performed: -
6) Any other relevant information: At 19:50 Hrs Ckt energized
Regards, Delhi SLDC |
20220717202617 | 2022-07-17 20:26:19 | 1) Name of the substation and Time: At 220kV PPG, 19:20 Hrs
2) Name of element tripped/restored: 220kV IP Ckt-I
3) Relay Annunciation: 220kV PPG- Trip R,Y and B- Ph trip distance 1.406 KM , Zone-I trip, O/C 86 220kV IP end distance 1.44 kM Zone -1,186,86
4) Details of physically damaged equipment: NIL
5) Immediate corrective/system normalization steps performed: At 19.50 Hrs 220kV ckt normilized
6) Any other relevant information: load Approx. 55 MW effected .
Regards, Delhi SLDC |
20220716133426 | 2022-07-16 13:34:28 | 1) Name of the substation and Time: At 11:30 Hrs
220 kV Shalimar bagh
2) Name of element tripped/restored: 220kV Bawana ckt-1 and 2,
220kV SGTN Ckt-1 and 2,
220 kV DMRC Ckt- 1 and 2,
100 MVA -1,2 and 3
3) Relay Annunciation: Bus bar protection operated due to kite thread fell on 220 kV bus-1
4) Details of physically damaged equipment: NIL
5) Immediate corrective/system normalization steps performed: At 11:40 hrs 220kV Bawana ckt-1 and 2,
220kV SGTN Ckt-1 and 2,
220 kV DMRC Ckt- 1 and 2 charged,
At 11:42 Hrs-100 MVA -1,2 charged,
At 12:44 Hrs- 100 MVA -3 charged
6) Any other relevant information: Total load effected approx. 339 MW system is normalized
Regards, Delhi SLDC |
20220715151305 | 2022-07-15 15:13:06 | 1) Name of the substation and Time: At 14:18 Hrs, 220kV Meharauli
2) Name of element tripped/restored: 220kV TUGB Ckt-I tripped
3) Relay Annunciation: At TUGB end R,Y and B-Ph. tripeed , Zone-3 tripped , distance-14.008 KM, Ib =9.373 KA
4) Details of physically damaged equipment: NIL
5) Immediate corrective/system normalization steps performed: At 14:41 hrs charged system normalized
6) Any other relevant information: Load effected 105 MW approx.
Regards, Delhi SLDC |
20220713190553 | 2022-07-13 19:05:55 | 1) Name of the substation and Time: 18:47 Hrs, 220kV Geeta Colony
2) Name of element tripped/restored: 220kV Geeta colony - SOW ckt1 charged
3) Relay Annunciation: NIL
4) Details of physically damaged equipment: NIL
5) Immediate corrective/system normalization steps performed: NIL
6) Any other relevant information: NIL
Regards, Delhi SLDC |
20220713183908 | 2022-07-13 18:39:10 | 1) Name of the substation and Time: 18:15Hrs 220kV Geeta colony
2) Name of element tripped/restored: 220kV Geeta Colony- SOW-Ckt-1
3) Relay Annunciation: R-Y Phase, Distance Z-1, 240Mtr from SOW S/stn
4) Details of physically damaged equipment: NIL
5) Immediate corrective/system normalization steps performed: Informed to S/stn staff to check the ckt.
6) Any other relevant information: NIL
Regards, Delhi SLDC |
20220709222625 | 2022-07-09 22:26:26 | 1) Name of the substation and Time: Correction: 220kV Pappankala 2 ckt 1 and 2 charged for the first time on no load from 220kV Dwarka end at 21:31 and 21:33 Hrs respectively
2) Name of element tripped/restored: -
3) Relay Annunciation: -
4) Details of physically damaged equipment: -
5) Immediate corrective/system normalization steps performed: -
6) Any other relevant information: Load to be taken on 11/07/2022 after mapping of available raw SCADA data in SCADA HMI displays
Regards, Delhi SLDC |
20220709222406 | 2022-07-09 22:24:07 | 1) Name of the substation and Time: 220kV Pappankala 2 ckt 1 and 2 charged for the first time on no load from 220kV Dwarka end.
2) Name of element tripped/restored: -
3) Relay Annunciation: -
4) Details of physically damaged equipment: -
5) Immediate corrective/system normalization steps performed: -
6) Any other relevant information: Load to be taken on 11/07/2022 after mapping of available raw SCADA data in SCADA HMI displays
Regards, Delhi SLDC |
20220708181223 | 2022-07-08 18:12:23 | 1) Name of the substation and Time: 220 Kv Geeta Colony
2) Name of element tripped/restored: at 17:05 hrs Incomer-II charged.but at 17:20 hrs incomer-II again tripped on Over current.at 17:32 hrs incomer -II charged along with all 33 kv feeders.
3) Relay Annunciation: na
4) Details of physically damaged equipment: common jumper of bus-II of 33 KV Kanti nagar ckt-I
5) Immediate corrective/system normalization steps performed: na
6) Any other relevant information: No load affected after 17:32 hrs.Incomer-I ,33 Kv bus-II still out attended by Mtc. staff.
Regards, Delhi SLDC |
20220708164832 | 2022-07-08 16:48:32 | 1) Name of the substation and Time: 220kV Geeta Colony at 16:25 hrs
2) Name of element tripped/restored: 33kV Kanti Nagar ckt 1, 33kV B/C, 33kV I/C I and II
3) Relay Annunciation: --
4) Details of physically damaged equipment: R ph common jumper of 33kV Kanti Nagar ckt 1 broke and fell on nearby gantry
5) Immediate corrective/system normalization steps performed: BYPL instructed to divert all possible load
6) Any other relevant information: total load approx 128MW effected initially of which abouy 30 MW has been diverted by BYPL.
Regards, Delhi SLDC |
20220708140429 | 2022-07-08 14:04:31 | 1) Name of the substation and Time: At 400kV Bawana and 220kV Kanjhawla 11:54 Hrs
2) Name of element tripped/restored: Bawana 315 MVA ICT 3 tripped effecting all load of 220kV Kanjhawla. Also trippings on Kanjhawla 100MVA Tx 1 and 2 and 160MVA Tx.
3) Relay Annunciation: At Bawana: 86A1,B1, Dir. E/F,At Kanjhawla: 100MVA Tx 1 and 2 on 86 while 160MVA Tx on O/C RYB ph ANE trip
4) Details of physically damaged equipment: -
5) Immediate corrective/system normalization steps performed: Kanjhawala restored on 220kV Mundka-Kanjhawala ckt. and feeders normalized from 12:41 to 13:16 hrs
6) Any other relevant information: approx 150 MW load effected, normalized by TPDDL in approx 15 to 20 minutes. ICT 3 charged at 13:07 Hrs. and Kanjhawala-Bawana 1 and 2 charged and load taken on 13:57 hrs.
Regards, Delhi SLDC |
20220707153227 | 2022-07-07 15:32:28 | 1) Name of the substation and Time: At 220kV Naraina 12:58 Hrs
2) Name of element tripped/restored: 220kV B/C, 220kV Dwarka ckt 1, 100MVA Tx-2 and 100MVA Tx-3
3) Relay Annunciation: Bus bar Protection on Bus 1
4) Details of physically damaged equipment: -
5) Immediate corrective/system normalization steps performed: 220kV Ridge Valley ckt put on and 100MVA-1 Normalized (on Bus 2) at 13:10 hrs. 220kV Dwarka ckt 1, Bus 1, Tx 2 and 3 normalized at 13:29
6) Any other relevant information: approx 200MW load was effected which was restored at 13:29 Hrs.
220kV Dwarka-Naraina ckt 2 was put off for S/D at 12:36 hrs. After Tripping, S/D was cancelled. System normalized at 14:00Hrs.
Regards, Delhi SLDC |
20220706113824 | 2022-07-06 11:38:25 | 1) Name of the substation and Time: Pragati
2) Name of element tripped/restored: GT-2 tripped on internal fault at 10:31Hrs.
No load was affected.
3) Relay Annunciation: na
4) Details of physically damaged equipment: na
5) Immediate corrective/system normalization steps performed: na
6) Any other relevant information: na
Regards, Delhi SLDC |
20220705132952 | 2022-07-05 13:29:53 | 1) Name of the substation and Time: Wazirpur
2) Name of element tripped/restored: 100MVA T/F-2 charged at 13:21Hrs.
3) Relay Annunciation: na
4) Details of physically damaged equipment: na
5) Immediate corrective/system normalization steps performed: na
6) Any other relevant information: na
Regards, Delhi SLDC |
20220705132711 | 2022-07-05 13:27:12 | 1) Name of the substation and Time: Naraina
2) Name of element tripped/restored: 100MVA T/F-3 charged at no load at 12:44Hrs.
3) Relay Annunciation: na
4) Details of physically damaged equipment: na
5) Immediate corrective/system normalization steps performed: na
6) Any other relevant information: na
Regards, Delhi SLDC |
20220705132433 | 2022-07-05 13:24:34 | 1) Name of the substation and Time: Naraina
2) Name of element tripped/restored: 100MVA T/F-3 charged at no load at 12:44Hrs.
3) Relay Annunciation: na
4) Details of physically damaged equipment: na
5) Immediate corrective/system normalization steps performed: na
6) Any other relevant information: na
Regards, Delhi SLDC |
20220705115320 | 2022-07-05 11:53:22 | 1) Name of the substation and Time: Wazirpur
2) Name of element tripped/restored: 100MVA T/F-2 tripped on oil surge relay at 10:58Hrs.
Load affected was 57MW.
Discoms have shifted its load.
3) Relay Annunciation: na
4) Details of physically damaged equipment: na
5) Immediate corrective/system normalization steps performed: na
6) Any other relevant information: na
Regards, Delhi SLDC |
20220703000822 | 2022-07-03 00:08:23 | 1) Name of the substation and Time: Kanjhawala
2) Name of element tripped/restored: 100MVA T/F-2 charged at 21:31Hrs and 100MVA T/F-1 charged at 22:12Hrs.
3) Relay Annunciation: na
4) Details of physically damaged equipment: na
5) Immediate corrective/system normalization steps performed: na
6) Any other relevant information: na
Regards, Delhi SLDC |
20220702210147 | 2022-07-02 21:01:48 | 1) Name of the substation and Time: Kanjhawala
2) Name of element tripped/restored: 100MVA T/F-1 tripped on 86, 100MVA T/F-2 tripped on RYB-phase O/C E/F and 66KV DMRC tripped on RY-phase O/C at 20:05Hrs.
Load affected was 54MW.
Load normalised through 66KV B/C at 20:20Hrs
3) Relay Annunciation: na
4) Details of physically damaged equipment: na
5) Immediate corrective/system normalization steps performed: na
6) Any other relevant information: na
Regards, Delhi SLDC |
20220701105815 | 2022-07-01 10:58:16 | 1) Name of the substation and Time: At GTPS(09:48hrs)
2) Name of element tripped/restored: 66KV I/C-I and II of 160MVA transformers tripped.
3) Relay Annunciation: E/F and O/C.
4) Details of physically damaged equipment: NCT of HV and LV side of both 160MVA transformers found flashed.
5) Immediate corrective/system normalization steps performed: All the concerned utilities informed to C/O their load on other sources.
6) Any other relevant information: Monkey electocuted in 66KV yard of GTPS. However 25MW load of NDMC still remains affected.
Regards, Delhi SLDC |
20220630205357 | 2022-06-30 20:53:58 | 1) Name of the substation and Time: At 220 KV Naraina
2) Name of element tripped/restored: 100 MVA-II charged at 20:10hrs.
3) Relay Annunciation: na
4) Details of physically damaged equipment: na
5) Immediate corrective/system normalization steps performed: na
6) Any other relevant information: na
Regards, Delhi SLDC |
20220630164555 | 2022-06-30 16:45:56 | 1) Name of the substation and Time: At 16:16 HRS
220KV NARAINA
2) Name of element tripped/restored: 100MVA-II with 33KV I/C-II
3) Relay Annunciation: SPR,86
4) Details of physically damaged equipment: -
5) Immediate corrective/system normalization steps performed: At 16:32 HRS 33KV Bus coupler closed
6) Any other relevant information: Load affected approx 74MW
Regards, Delhi SLDC |
20220630122126 | 2022-06-30 12:21:27 | 1) Name of the substation and Time: At 12:15 HRS
220KV M.MOTH
2) Name of element tripped/restored: 100MVA-II with 33KV I/C No-II tripped
3) Relay Annunciation: PRV operated ,86 I and II
4) Details of physically damaged equipment: -
5) Immediate corrective/system normalization steps performed: 33KV Buscoupler was alredy closed hence no load affected
6) Any other relevant information: -
Regards, Delhi SLDC |
20220628144350 | 2022-06-28 14:43:50 | 1) Name of the substation and Time: PPK-1
2) Name of element tripped/restored: 220KV Dwarka ckt-II made off by grid staff manually due to fire observed in Y-phase Bus-II isolator at 13:34Hrs.
Load affected was 145MW.
Load normalised through 220KV Bamnauli ckt-II at 13:45.
3) Relay Annunciation: na
4) Details of physically damaged equipment: na
5) Immediate corrective/system normalization steps performed: na
6) Any other relevant information: na
Regards, Delhi SLDC |
20220628133324 | 2022-06-28 13:33:25 | 1) Name of the substation and Time: Rajghat
2) Name of element tripped/restored: 33KV I/C-1 made off by grid staff manually due to fire observed in B-phase bus isolator of 33KV I/C-I at 13:02Hrs.
Load affected was 42MW.
Load normalised through 33KV B/C at 13:16Hrs.
3) Relay Annunciation: na
4) Details of physically damaged equipment: na
5) Immediate corrective/system normalization steps performed: na
6) Any other relevant information: na
Regards, Delhi SLDC |
20220628132420 | 2022-06-28 13:24:21 | 1) Name of the substation and Time: PPK-3
2) Name of element tripped/restored: 160MVA T/F-2 tripped on IV REF at 12:53Hrs.
Load affected was 74MW.
Load normalised through 66KV B/C at 13:03Hrs.
3) Relay Annunciation: na
4) Details of physically damaged equipment: na
5) Immediate corrective/system normalization steps performed: na
6) Any other relevant information: na
Regards, Delhi SLDC |
20220628131939 | 2022-06-28 13:19:40 | 1) Name of the substation and Time: Mehrauli and Vasant Kunj
2) Name of element tripped/restored: 220KV Tughlakabad-Mehrauli ckt-I tripped at 12:10Hrs. Relay at Tughlakabad end are RYB-phase Z-2.
220KV Vasant Kunj-Mehrauli ckt-I tripped on E/F and 220KV Vasant-Mehrauli ckt-II tripped without indication at 12:10Hrs.
Load affected was approx. 140MW of Mehrauli and 138MW of Vasant Kunj.
Load of Vasant Kunj normalised through 220KV R.K Puram ckt-I and II at 12:17Hrs.
220KV Tughlakabad-Mehrauli ckt-I charged at 12:34Hrs and load of Mehrauli normalised.
3) Relay Annunciation: na
4) Details of physically damaged equipment: na
5) Immediate corrective/system normalization steps performed: na
6) Any other relevant information: na
Regards, Delhi SLDC |
20220628131316 | 2022-06-28 13:13:17 | 1) Name of the substation and Time: Mehrauli and Vasant Kunj
2) Name of element tripped/restored: 220KV Tughlakabad-Mehrauli ckt-I tripped at 12:10Hrs. Relay at Tughlakabad end are RYB-phase Z-2.
220KV Vasant Kunj-Mehrauli ckt-I tripped on E/F and 220KV Vasant-Mehrauli ckt-II tripped without indication at 12:10Hrs.
Load affected was approx. 140MW of Mehrauli and 138MW of Vasant Kunj.
Load of Vasant Kunj normalised through 220KV R.K Puram ckt-I and II at 12:17Hrs.
220KV Tughlakabad-Mehrauli ckt-I charged at 12:34Hrs and load of Mehrauli normalised.
3) Relay Annunciation: na
4) Details of physically damaged equipment: na
5) Immediate corrective/system normalization steps performed: na
6) Any other relevant information: na
Regards, Delhi SLDC |
20220627222030 | 2022-06-27 22:20:31 | 1) Name of the substation and Time: DTL 20:22HRs
2) Name of element tripped/restored: Load Curtail to maintain grid balance
3) Relay Annunciation: NIL
4) Details of physically damaged equipment: NIL
5) Immediate corrective/system normalization steps performed: NIL
6) Any other relevant information: Even after repeated violation massages, discoms did not curtail overdrawl at low frequency of 49.59Hz in consultation with NRLDC and discoms following steps were taken to maintain grid balance.
400/220/66kV S/stn Mundka, At 20:25Hrs, 66kV Munka ckt-1 switched off 25MW load curtailed.
220KV Shalibarbagh, Ranibagh ckt switched off, At 20:32Hrs, 21 MW load curtailed, At 20:38Hrs Wazirpur-II cktII Switched off 13MW load curtailed, both ckt restored at 21:00Hrs
220kV Peeragarhi, At 20:22Hrs all 33kV feeders switched off, 187MW Load Curtailed, at 20:36Hrs Mukharji park ckt 1 and 2 and Pashchim puri ckt 1 and 2 switched on 42MW.
1 unit of CCGT bawana has been synchronized at 19:35 hrs. and massage conveyed to bring one unit of PPCL-I (150 mw) and 1 unit of GTPS on bar.
Some load was also curtailed by Discoms at their end, quantum of load is yet not uploaded.
Regards, Delhi SLDC |
20220627111854 | 2022-06-27 11:18:55 | 1) Name of the substation and Time: Sarita Vihar
2) Name of element tripped/restored: 160MVA T/F-1 tripped without indication at 10:50Hrs.
Load affected was 58MW.
160MVA T/F-1 charged at 10:53Hrs and load normalised.
3) Relay Annunciation: na
4) Details of physically damaged equipment: na
5) Immediate corrective/system normalization steps performed: na
6) Any other relevant information: na
Regards, Delhi SLDC |
20220625082942 | 2022-06-25 08:29:43 | 1) Name of the substation and Time: Rajghat
2) Name of element tripped/restored: 100MVA T/F-2 charged at 08:00Hrs.
3) Relay Annunciation: na
4) Details of physically damaged equipment: na
5) Immediate corrective/system normalization steps performed: na
6) Any other relevant information: na
Regards, Delhi SLDC |
20220625030442 | 2022-06-25 03:04:43 | 1) Name of the substation and Time: Rajghat
2) Name of element tripped/restored: 100MVA T/F-2 tripped on PRV at 00:40Hrs.
No load was affected.
3) Relay Annunciation: na
4) Details of physically damaged equipment: na
5) Immediate corrective/system normalization steps performed: na
6) Any other relevant information: na
Regards, Delhi SLDC |
20220622204937 | 2022-06-22 20:49:38 | 1) Name of the substation and Time: 220 KV Ghazipur
2) Name of element tripped/restored: 220 KV MBGH ckt-II charged at 20:05 hrs.
3) Relay Annunciation: na
4) Details of physically damaged equipment: na
5) Immediate corrective/system normalization steps performed: na
6) Any other relevant information: na
Regards, Delhi SLDC |
20220622192546 | 2022-06-22 19:25:47 | 1) Name of the substation and Time: 220 KV Gazipur at 19:00 hrs
2) Name of element tripped/restored: 220 KV MBGH ckt-II tripped from Both end on distance prot.z-IY phase
3) Relay Annunciation: na
4) Details of physically damaged equipment: na
5) Immediate corrective/system normalization steps performed: na
6) Any other relevant information: no load affected.
Regards, Delhi SLDC |
20220622092823 | 2022-06-22 09:28:27 | 1) Name of the substation and Time: IP
2) Name of element tripped/restored: 33KV I/C I and 33KV I/C-II tripped on E/F at 08:12Hrs.
Load affected was 53MW.
33KV I/C-I charged at 08:23Hrs and load normalised.
33KV I/C-II charged at 08:40Hrs.
3) Relay Annunciation: na
4) Details of physically damaged equipment: na
5) Immediate corrective/system normalization steps performed: na
6) Any other relevant information: na
Regards, Delhi SLDC |
20220621181625 | 2022-06-21 18:16:28 | 1) Name of the substation and Time: Lodhi Road
2) Name of element tripped/restored: 220KV Maharani Bagh ckt-I charged at 17:45Hrs.
3) Relay Annunciation: na
4) Details of physically damaged equipment: na
5) Immediate corrective/system normalization steps performed: na
6) Any other relevant information: na
Regards, Delhi SLDC |
20220621163919 | 2022-06-21 16:39:20 | 1) Name of the substation and Time: AT-15:50 Hrs ,220 KV Masjid moth
2) Name of element tripped/restored: 220 KV Maharani Bagh ckt-1
3) Relay Annunciation: -
4) Details of physically damaged equipment: -
5) Immediate corrective/system normalization steps performed: -
6) Any other relevant information: Restored at 15:50 Hrs)
Regards, Delhi SLDC |
20220621161752 | 2022-06-21 16:17:54 | 1) Name of the substation and Time: M bagh 1530 hrs
2) Name of element tripped/restored: lodhi road ckt1
3) Relay Annunciation: distance protection, 0.1 km, 33 kA fault in R phase
4) Details of physically damaged equipment: none reported
5) Immediate corrective/system normalization steps performed: load made normal by switching B coupler ON
6) Any other relevant information: 220 kV M Moth ckt1 also tripped at M Moth end at the same time. Total load affected about 95 MW for 5 mins
Regards, Delhi SLDC |
20220616140015 | 2022-06-16 14:00:17 | 1) Name of the substation and Time: At Sarita Vihar(12:53hrs)
2) Name of element tripped/restored: 220KV Pragati
3) Relay Annunciation: Tripped on B-N phase(RYB) ,1.8KA fault current.
4) Details of physically damaged equipment: none.
5) Immediate corrective/system normalization steps performed: 220KV B/C put ON at Pragati station.
6) Any other relevant information: A/R operated.
Regards, Delhi SLDC |
20220616085332 | 2022-06-16 08:53:33 | 1) Name of the substation and Time: At 220kV Gopalpur, at 08:04 Hrs
2) Name of element tripped/restored: 220kV Mandola ckt 2 energized
3) Relay Annunciation: -
4) Details of physically damaged equipment: -
5) Immediate corrective/system normalization steps performed: -
6) Any other relevant information: -
Regards, Delhi SLDC |
20220616085207 | 2022-06-16 08:52:08 | 1) Name of the substation and Time: At 220kV IP, at 08:49
2) Name of element tripped/restored: 220kV Pragati ckt energized.
3) Relay Annunciation: -
4) Details of physically damaged equipment: -
5) Immediate corrective/system normalization steps performed: -
6) Any other relevant information: -
Regards, Delhi SLDC |
20220616025515 | 2022-06-16 02:55:16 | 1) Name of the substation and Time: At 220kV IP 02:30 Hrs
2) Name of element tripped/restored: 220kV Pragati ckt 2
3) Relay Annunciation: 86
4) Details of physically damaged equipment: -
5) Immediate corrective/system normalization steps performed: -
6) Any other relevant information: Line didnot trip at Pragati end
Regards, Delhi SLDC |
20220616024442 | 2022-06-16 02:44:43 | 1) Name of the substation and Time: At 220kV Gopalpur 02:00 Hrs
2) Name of element tripped/restored: 160MV tx 4 220/66kV
3) Relay Annunciation: differential, LV REF, Buchholz
4) Details of physically damaged equipment: -
5) Immediate corrective/system normalization steps performed: Discom instructed to shift load
6) Any other relevant information: 53 MW load effected, Shifted by TPDDL
Regards, Delhi SLDC |
20220616024213 | 2022-06-16 02:42:15 | 1) Name of the substation and Time: At 220kV Pragati 01:37 Hrs
2) Name of element tripped/restored: 220kV Sarita Vihar ckt
3) Relay Annunciation: At PGT: Z-1, 4 CN Phase , At SVR: 36.13km, BM Phase
4) Details of physically damaged equipment: -
5) Immediate corrective/system normalization steps performed: Tried but didnot hold. 220kV B/C put on at Pragati and MBG ckt put off.at 01:56Hrs
6) Any other relevant information: -
Regards, Delhi SLDC |
20220616023949 | 2022-06-16 02:39:51 | 1) Name of the substation and Time: At 220kV Gopalpur 01:30 Hrs
2) Name of element tripped/restored: 220kV Mandola ckt 2
3) Relay Annunciation: Y B Ph differential
4) Details of physically damaged equipment: -
5) Immediate corrective/system normalization steps performed: 220kV Wazirabad ckt 1 put on at 01:32 hrs
6) Any other relevant information: 75MW load effected
Regards, Delhi SLDC |
20220614183706 | 2022-06-14 18:37:08 | 1) Name of the substation and Time: 220kV Okhla 18:05Hrs
2) Name of element tripped/restored: 100MVA Transformer NO.4.
3) Relay Annunciation: Nil
4) Details of physically damaged equipment: Nil
5) Immediate corrective/system normalization steps performed: Nil
6) Any other relevant information: 100MVA Transformer, 220/66-33/11kV EMCO make, shifted from 220kV Pappankalan-1, to replace the damaged 100MVA 220/33kV transformer at 220kV Okhla.
Regards, Delhi SLDC |
20220614160144 | 2022-06-14 16:01:45 | 1) Name of the substation and Time: AT 15:30 Hrs,220 KV Lodhi Road
2) Name of element tripped/restored: 33 KV I/C-II with 33 KV HUDCO frd tripped
3) Relay Annunciation: 67N,86A,B
4) Details of physically damaged equipment: 33 KV HUDCO cable found puncture by JCB
5) Immediate corrective/system normalization steps performed: AT 15:40 Hrs 33 KV I/C -II Charge
6) Any other relevant information: Load effected aprox.60 MW onlay 10 Mint.
and system normal
Regards, Delhi SLDC |
20220614154738 | 2022-06-14 15:47:39 | 1) Name of the substation and Time: 15:30Hrs.220KV I.P.
2) Name of element tripped/restored: 33 KV I/C-II
3) Relay Annunciation: Earth Fault ,Birdage
4) Details of physically damaged equipment: -
5) Immediate corrective/system normalization steps performed: AT 15:38 HRS
33 KV I/C-II Charge and load taken
6) Any other relevant information: Load effected approx. 65 MW Only 09 Min.
System Normal
Regards, Delhi SLDC |
20220613004021 | 2022-06-13 00:40:22 | 1) Name of the substation and Time: At Patparganj(23:26hrs).
2) Name of element tripped/restored: 66KV I/C-I and II.
3) Relay Annunciation: tripped on E/F,86.
4) Details of physically damaged equipment: None
5) Immediate corrective/system normalization steps performed: Yard visited by grid staff, found OK.
6) Any other relevant information: 66KV B/C was on at the time of tripping.
Regards, Delhi SLDC |
20220613003639 | 2022-06-13 00:36:40 | 1) Name of the substation and Time: At Patparganj(23:03hrs)
2) Name of element tripped/restored: 66KV I/C- I and II
3) Relay Annunciation: tripped on E/F, 86.
4) Details of physically damaged equipment: None
5) Immediate corrective/system normalization steps performed: BSES asked to C/O load.
6) Any other relevant information: No feeder tripped.
Regards, Delhi SLDC |
20220611202558 | 2022-06-11 20:25:59 | 1) Name of the substation and Time: 220kV Patparganj 19:07Hrs
2) Name of element tripped/restored: 220kV Bus-II, Tripped, resulting tripping of 220kV Geeta Colony ckt-1 and 2 and 220kV IP ckt-1 and 2.
3) Relay Annunciation: Bus Bar operated, resulting disturbance of 230MW load loss for 2 Min, and 19MW load shed due to overloading of 220kV Maharnibagh-Pragati ckt
4) Details of physically damaged equipment: NIL
5) Immediate corrective/system normalization steps performed: 220kV Bus coupler switch ON at 220kV Pragati to manage load of 220kV IP and Rajghat S/stns
6) Any other relevant information: At 19:30 HRs 220kV Geeta Colony-Patparganj ckt 1 and 2 and 220kV IP-Pragati ckt 1 and 2 charged and load Normalized
Regards, Delhi SLDC |
20220607213450 | 2022-06-07 21:34:51 | 1) Name of the substation and Time: AT 21:20 HRS
220KV park street
2) Name of element tripped/restored: 30MVA Tx No-I and II
charged/energized
3) Relay Annunciation: -
4) Details of physically damaged equipment: -
5) Immediate corrective/system normalization steps performed: -
6) Any other relevant information: 20:45 HRS Prashad Nagar-II charged
Regards, Delhi SLDC |
20220607213222 | 2022-06-07 21:32:22 | 1) Name of the substation and Time: AT 20:17 HRS
220KV parkstreet
2) Name of element tripped/restored: 30MVA Tx No-I and II
3) Relay Annunciation: Any trip E/F HT 86 operated both tranformer
4) Details of physically damaged equipment: 33KV Prashad nagar-I porcelien part of Bus isolator insulator found crack
5) Immediate corrective/system normalization steps performed: 33KV Prashad nagar -2 taken load through 33KV Bus-I
6) Any other relevant information: approx 19MW load affected for 28Minutes only
Regards, Delhi SLDC |
20220607212231 | 2022-06-07 21:22:31 | 1) Name of the substation and Time: 16:39 HRS
400KV Mundka
2) Name of element tripped/restored: 220KV Mundka-Kanjhawala ckt tripped
3) Relay Annunciation: At Mundka RB phase zone 2 and 3 Distance 10.3.3KM,Ir 415A,Iy428A and Ib 241A
4) Details of physically damaged equipment: -
5) Immediate corrective/system normalization steps performed: -
6) Any other relevant information: Maintenance staff of KNJ taken PTW
Regards, Delhi SLDC |
20220607190517 | 2022-06-07 19:05:20 | 1) Name of the substation and Time: AT 400 KV CCGT BAWANA inter connectors put on at
16:35 Hrs
2) Name of element tripped/restored: both circuits 220 kv Shalimaar Baagh, 220 kv Rohini and DSIIDC ckts restored
3) Relay Annunciation: -
4) Details of physically damaged equipment: -
5) Immediate corrective/system normalization steps performed: both 400kV interconnectors made on and 315 MVA ICT 1, 4, 5, 6 normalized
6) Any other relevant information: approx. 750 MW Load affected
Regards, Delhi SLDC |
20220607185817 | 2022-06-07 18:58:18 | 1) Name of the substation and Time: test
2) Name of element tripped/restored: test
3) Relay Annunciation: test
4) Details of physically damaged equipment: test
5) Immediate corrective/system normalization steps performed: test
6) Any other relevant information: test
Regards, Delhi SLDC |
20220607170048 | 2022-06-07 17:00:50 | 1) Name of the substation and Time: At 16:01 400 KV CCGT BAWANA
2) Name of element tripped/restored: BOTH BUS OF 400 KV DEAD AT 400 KV CCGT BAWANA
3) Relay Annunciation: NA
4) Details of physically damaged equipment: 400 KV HISSAR LINE CONDUCTOR SNAPPED AND HANGING ON 400 KV BHADURGARH LINE
5) Immediate corrective/system normalization steps performed: 400 KV INTERCONNECTOR TO BE MADE ON
6) Any other relevant information: NRLDC ISSUED CODE FOR CONNECTING INTERCONNECTOR
Regards, Delhi SLDC |
20220606190012 | 2022-06-06 19:00:13 | 1) Name of the substation and Time: 220kV Peeragarhi, 18:50Hrs
2) Name of element tripped/restored: 100MVA Transformer No.1 charged.
3) Relay Annunciation: NIL
4) Details of physically damaged equipment: NIL
5) Immediate corrective/system normalization steps performed: NIL
6) Any other relevant information: NEW 100MVA TRANSFORMER, TAL MAKE,2022 is installed and charged in replacement of old IMP make transformer damaged on 11.07.2021.
Regards, Delhi SLDC |
20220605171952 | 2022-06-05 17:19:54 | 1) Name of the substation and Time: At 17:03 HRS 400KV MBG
2) Name of element tripped/restored: 220KV Sarita vihar ckt tripped
3) Relay Annunciation: Relay MBG-
Gen trip,R-phase trip, zone-I Distance 4.1KM
SARITAVIHAR
A/R L/O, Distance protection operated,zone-I R-phase, distance 8.351KM
4) Details of physically damaged equipment: -
5) Immediate corrective/system normalization steps performed: -
6) Any other relevant information: -
Regards, Delhi SLDC |
20220605163748 | 2022-06-05 16:37:49 | 1) Name of the substation and Time: At 16:35HRS
220KV Mehrauli
2) Name of element tripped/restored: 100MVA-II with 66KV I/C-II energised
3) Relay Annunciation: -
4) Details of physically damaged equipment: -
5) Immediate corrective/system normalization steps performed: -
6) Any other relevant information: -
Regards, Delhi SLDC |
20220605152146 | 2022-06-05 15:21:47 | 1) Name of the substation and Time: At 14:34 HRS
220KV Mehrauli
2) Name of element tripped/restored: AT 14:34 HRS
Transformer 1,3 and 4 energised.
and system normalised
3) Relay Annunciation: -
4) Details of physically damaged equipment: -
5) Immediate corrective/system normalization steps performed: AT 14:34 HRS
Transformer 1,3 and 4 energised.
Load affected 140MW MW approx.
And system normalised
6) Any other relevant information: AT 14:16 HRS 100 MVA-II also tripped w/o indication and did not closed
Regards, Delhi SLDC |
20220605151645 | 2022-06-05 15:16:47 | 1) Name of the substation and Time: At 220KV Mehrauli 14:16 HRS
100MVA-I and III tripped and Tx No-4 tripped at 14:22 HRS
2) Name of element tripped/restored: 100MVA-I and III tripped and Tx No-4 tripped at 14:22 HRS
3) Relay Annunciation: -
4) Details of physically damaged equipment: -
5) Immediate corrective/system normalization steps performed: AT 14:34 HRS
Transformer 1,3 and 4 energised.
Load affected 140MW MW approx.
And system normalised
6) Any other relevant information: -
Regards, Delhi SLDC |
20220605150845 | 2022-06-05 15:08:46 | 1) Name of the substation and Time: AT 14:05 HRS 220KV TUGB
2) Name of element tripped/restored: 220KV TUGB-Mehrauli ckt-II charged
3) Relay Annunciation: -
4) Details of physically damaged equipment: -
5) Immediate corrective/system normalization steps performed: -
6) Any other relevant information: 14:07HRS at VSK S/stn
Load taken on 220KV mehrauli-II and 220KV Buscoupler made offf
Regards, Delhi SLDC |
20220605150157 | 2022-06-05 15:01:59 | 1) Name of the substation and Time: At 13:45 HRS
220KV TUGB
2) Name of element tripped/restored: 220KV TUGB Mehrauli ckt-II tripped
3) Relay Annunciation: Relay Zone-3,Zone-2,R.Y,B Phase trip Ir 11.39KA, Distance 9.5KM
4) Details of physically damaged equipment: Mehrauli-VSK-II supply failed breaker didnot trp at VSK Side
5) Immediate corrective/system normalization steps performed: AT 13:47 HRS ,Vasant Kunj -220KV CB of mehrauli -II manually trip and 220KV Buscoupler closed and system normalised at VSK,Load affected approx 57MW for 2 minutes at VSK.
At 220KV Mehrauli-Due to DMRC one ckt affected 100MVA transformer shifted.
6) Any other relevant information: -
Regards, Delhi SLDC |
20220603223737 | 2022-06-03 22:37:39 | 1) Name of the substation and Time: CCGT Bawana, 22:04 Hrs
2) Name of element tripped/restored: GT-I, STG-I, Tripped, 300MW Generation loss
3) Relay Annunciation: Due to internal fault
4) Details of physically damaged equipment: NIL
5) Immediate corrective/system normalization steps performed: NIL
6) Any other relevant information: NIL
Regards, Delhi SLDC |
20220602194346 | 2022-06-02 19:43:47 | 1) Name of the substation and Time: At 17:55 HRS
220KV RPH
2) Name of element tripped/restored: 100MVA-2 with 33KV I/C-II charged and load taken
3) Relay Annunciation: -
4) Details of physically damaged equipment: -
5) Immediate corrective/system normalization steps performed: -
6) Any other relevant information: -
Regards, Delhi SLDC |
20220602155212 | 2022-06-02 15:52:13 | 1) Name of the substation and Time: 220kV Rajghat, 14:55Hrs
2) Name of element tripped/restored: 33kV Incomer of 100MVA Tr. 2 manually switched of due to heave flashing in incomer isolator, 42MW Load affected for 8Min
3) Relay Annunciation: NIL
4) Details of physically damaged equipment: NIL
5) Immediate corrective/system normalization steps performed: PTW Issued
6) Any other relevant information: Buscoupler switched ON at 15:03Hrs to normalize the load
Regards, Delhi SLDC |
20220602115852 | 2022-06-02 11:58:53 | 1) Name of the substation and Time: 220kV Parkstreet
2) Name of element tripped/restored: 100/33kV TR No.1, Put on Load.
3) Relay Annunciation: NIL
4) Details of physically damaged equipment: NIL
5) Immediate corrective/system normalization steps performed: NIL
6) Any other relevant information: NIL
Regards, Delhi SLDC |
20220602082955 | 2022-06-02 08:29:56 | 1) Name of the substation and Time: At SGTN(18:22hrs) 01.06.22
2) Name of element tripped/restored: 160MVA-II
3) Relay Annunciation: low gas pressure in BP-III chamber of 66KV I/C-II
4) Details of physically damaged equipment: None
5) Immediate corrective/system normalization steps performed: Emergency S/D taken.
6) Any other relevant information: Permit issued to maintenance staff at 08:15hrs(02.06.22)
Regards, Delhi SLDC |
20220601145658 | 2022-06-01 14:57:01 | 1) Name of the substation and Time: 400 KV Mundaka at 14:29 hrs
2) Name of element tripped/restored: 400 Kv Bawana-Mundaka ckt-II tripped on distance prot R pahse ,zone-I ,7.87 KM,15.59 KA. from Mundka. No load affected
3) Relay Annunciation: na
4) Details of physically damaged equipment: na
5) Immediate corrective/system normalization steps performed: na
6) Any other relevant information: na
Regards, Delhi SLDC |
20220530195636 | 2022-05-30 19:56:37 | 1) Name of the substation and Time: AT 17:55HRS
400KV Bawana
2) Name of element tripped/restored: 400KV CB No-1552 and 400KV CB 1752 of 400KV lines of Maranibagh ckt-I and II charged
3) Relay Annunciation: -
4) Details of physically damaged equipment: -
5) Immediate corrective/system normalization steps performed: -
6) Any other relevant information: -
Regards, Delhi SLDC |
20220530194458 | 2022-05-30 19:44:59 | 1) Name of the substation and Time: AT 17:36 HRS
220Geetacolony
2) Name of element tripped/restored: 220KV SOW-Geetacolony ckt-I and II charged
3) Relay Annunciation: -
4) Details of physically damaged equipment: -
5) Immediate corrective/system normalization steps performed: -
6) Any other relevant information: -
Regards, Delhi SLDC |
20220530194014 | 2022-05-30 19:40:17 | 1) Name of the substation and Time: At 19:30HRS
220KV Gopalpur
2) Name of element tripped/restored: 220KV GOpalpur-mandola-II charged
3) Relay Annunciation: -
4) Details of physically damaged equipment: -
5) Immediate corrective/system normalization steps performed: -
6) Any other relevant information: -
Regards, Delhi SLDC |
20220530192341 | 2022-05-30 19:23:45 | 1) Name of the substation and Time: At 19:21 HRS
220KV Kashmirigate
2) Name of element tripped/restored: 220KV KGT-SOW ckt-I charged
3) Relay Annunciation: -
4) Details of physically damaged equipment: -
5) Immediate corrective/system normalization steps performed: -
6) Any other relevant information: -
Regards, Delhi SLDC |
20220530191732 | 2022-05-30 19:17:33 | 1) Name of the substation and Time: At 17:14 HRS
220KV Saritavihar
2) Name of element tripped/restored: 220KV SVR-Paragati ckt charged
3) Relay Annunciation: -
4) Details of physically damaged equipment: -
5) Immediate corrective/system normalization steps performed: -
6) Any other relevant information: -
Regards, Delhi SLDC |
20220530190236 | 2022-05-30 19:02:38 | 1) Name of the substation and Time: At 18:58 HRS
220KV Saritavihar
2) Name of element tripped/restored: 220KV SVR-MBG ckt charged
3) Relay Annunciation: -
4) Details of physically damaged equipment: -
5) Immediate corrective/system normalization steps performed: -
6) Any other relevant information: -
Regards, Delhi SLDC |
20220530184538 | 2022-05-30 18:45:39 | 1) Name of the substation and Time: 220 KV Gopal pur At 18:05 Hrs
2) Name of element tripped/restored: 220KV Gopalpur- Mandola ckt-1 charge
3) Relay Annunciation: -
4) Details of physically damaged equipment: -
5) Immediate corrective/system normalization steps performed: -
6) Any other relevant information: -
Regards, Delhi SLDC |
20220530184056 | 2022-05-30 18:40:56 | 1) Name of the substation and Time: At 18:07 HRS
220KV TUGB
2) Name of element tripped/restored: 220kv TUGB-Mehrauli-II charged
3) Relay Annunciation: -
4) Details of physically damaged equipment: -
5) Immediate corrective/system normalization steps performed: -
6) Any other relevant information: -
Regards, Delhi SLDC |
20220530183729 | 2022-05-30 18:37:34 | 1) Name of the substation and Time: At 18:01 HRS
220 Kv Geeta Colony
2) Name of element tripped/restored: 220KV Geeta-PPG-I charged
3) Relay Annunciation: -
4) Details of physically damaged equipment: -
5) Immediate corrective/system normalization steps performed: -
6) Any other relevant information: -
Regards, Delhi SLDC |
20220530182016 | 2022-05-30 18:20:17 | 1) Name of the substation and Time: 220 kv Geeta Colony 18:02Hrs
2) Name of element tripped/restored: 220 KV Geeta colony - Kashmari gate ckt-1 Restroed at 18:03 Hrs
3) Relay Annunciation: -
4) Details of physically damaged equipment: -
5) Immediate corrective/system normalization steps performed: -
6) Any other relevant information: -
Regards, Delhi SLDC |
20220530173504 | 2022-05-30 17:35:05 | 1) Name of the substation and Time: 400 kv BAWANA
2) Name of element tripped/restored: TIE CB#1552 AND 1752 TRIPPED OF 400 KV MAHARANI BAAG CKT.1 and 2
3) Relay Annunciation: W/O INDICATION
4) Details of physically damaged equipment: NO
5) Immediate corrective/system normalization steps performed: NO LOAD AFFECTED AS SUPPLY ON THROUGH MAIN BRKR
6) Any other relevant information: NA
Regards, Delhi SLDC |
20220530173430 | 2022-05-30 17:34:31 | 1) Name of the substation and Time: Various 220 kV elements tripped at from 16:25 hrs onwards
2) Name of element tripped/restored:
SoW - K Gate Ckt 1
Geeta Colony - SoW Ckt 1 and 2
Geeta Colony - PPG ckt 1
M Bagh - Gazipur ckt - 1
M Bagh - Sarita Vihar
Sarita Vihar - Pragati
Mehrauli - Tugh Ckt - 2
Mehrauli - V Kunj Ckt - 2
3) Relay Annunciation: Details Avaited
4) Details of physically damaged equipment: Details Avaited
5) Immediate corrective/system normalization steps performed: Details Avaited
6) Any other relevant information: Total load reduction of about 2000 MW observed. Many 66kV and 33kV elements also tripped.
Regards, Delhi SLDC |
20220529214942 | 2022-05-29 21:49:43 | 1) Name of the substation and Time: At 400 KV Mundaka
2) Name of element tripped/restored: 400 KV Bawana-mundka ckt-II charged at 21:29 hrs
3) Relay Annunciation: na
4) Details of physically damaged equipment: na
5) Immediate corrective/system normalization steps performed: na
6) Any other relevant information: na
Regards, Delhi SLDC |
20220529213313 | 2022-05-29 21:33:14 | 1) Name of the substation and Time: At 220 KV Narela
2) Name of element tripped/restored: 220 KV PNP ckt-III charged at 21:27 hrs,
3) Relay Annunciation: na
4) Details of physically damaged equipment: na
5) Immediate corrective/system normalization steps performed: na
6) Any other relevant information: na
Regards, Delhi SLDC |
20220529195113 | 2022-05-29 19:51:14 | 1) Name of the substation and Time: At 400 KV Bawana
2) Name of element tripped/restored: 400 Kv Abdullapur ckt charged at 19:23 hrs.
3) Relay Annunciation: na
4) Details of physically damaged equipment: na
5) Immediate corrective/system normalization steps performed: na
6) Any other relevant information: na
Regards, Delhi SLDC |
20220529183125 | 2022-05-29 18:31:26 | 1) Name of the substation and Time: 220kV Narela 18:14Hrs
2) Name of element tripped/restored: Panipat Ckt-I, II
65MW Load Affected for 3 Min
At 18:17Hrs B/C ON
3) Relay Annunciation: Not informed
4) Details of physically damaged equipment: Nil
5) Immediate corrective/system normalization steps performed: Nil
6) Any other relevant information: NIl
Regards, Delhi SLDC |
20220529182837 | 2022-05-29 18:28:38 | 1) Name of the substation and Time: 400kV Bawana 18:14Hrs
2) Name of element tripped/restored: 400kV Abdulapur
3) Relay Annunciation: B-Ph, Z-I, 12.8Km
4) Details of physically damaged equipment: Nil
5) Immediate corrective/system normalization steps performed: Nil
6) Any other relevant information: Nil
Regards, Delhi SLDC |
20220529182635 | 2022-05-29 18:26:35 | 1) Name of the substation and Time: 220kV Narela 17:49Hrs
2) Name of element tripped/restored: Panipat ckt-III
3) Relay Annunciation: RYB-Ph, Z-II, A/R LO
4) Details of physically damaged equipment: Nil
5) Immediate corrective/system normalization steps performed: Nil
6) Any other relevant information: Nil
Regards, Delhi SLDC |
20220529182627 | 2022-05-29 18:26:29 | 1) Name of the substation and Time: 220kV Narela 17:49Hrs
2) Name of element tripped/restored: Panipat ckt-III
3) Relay Annunciation: RYB-Ph, Z-II, A/R LO
4) Details of physically damaged equipment: Nil
5) Immediate corrective/system normalization steps performed: Nil
6) Any other relevant information: Nil
Regards, Delhi SLDC |
20220529160247 | 2022-05-29 16:02:48 | 1) Name of the substation and Time: At 15:42 HRS
400KV Mundka
2) Name of element tripped/restored: 400KV Mundka-bawana ckt-II
3) Relay Annunciation: Relay bawana-186A and B,Trip A phase,Zone-I trip ,Distance 10.95KM, Ia 18.22KA, Ib 836.9 A, Ic748.9A, In 18.25KA Mundka Relay R-phase trip zone-I,Distance 7.71KM, Ia 16.79 KA
4) Details of physically damaged equipment: -
5) Immediate corrective/system normalization steps performed: -
6) Any other relevant information: -
Regards, Delhi SLDC |
20220529143509 | 2022-05-29 14:35:10 | 1) Name of the substation and Time: At 14:31HRS,
400KV Mundka
2) Name of element tripped/restored: 400KV Mundka-Bawana ckt-II
3) Relay Annunciation: -
4) Details of physically damaged equipment: -
5) Immediate corrective/system normalization steps performed: Ckt tried once held/Charged and load shared
6) Any other relevant information: -
Regards, Delhi SLDC |
20220529142121 | 2022-05-29 14:21:22 | 1) Name of the substation and Time: AT 13:29 HRs 400KV Mundka
2) Name of element tripped/restored: 400KV Munka-Bawana-II
3) Relay Annunciation: Tripping bawana-II Relay bawana-186A and B,Trip A phase,Zone-I trip ,Distance 11.07KM,Ia 18.19KA,Ib827.2A,Ic761.9A,In18.20KA Mundka Relay R-phase trip zone-I,Distance 7.83KM,Ia 16.35KA
4) Details of physically damaged equipment: -
5) Immediate corrective/system normalization steps performed: -
6) Any other relevant information: -
Regards, Delhi SLDC |
20220528112732 | 2022-05-28 11:27:33 | 1) Name of the substation and Time: 400kV Harsh Vihar
2) Name of element tripped/restored: 400kV Dadri ckt 1 charged at 10:45
and 400kV Dadri ckt 2 charged at 11:19
3) Relay Annunciation: -
4) Details of physically damaged equipment: -
5) Immediate corrective/system normalization steps performed: -
6) Any other relevant information: -
Regards, Delhi SLDC |
20220527213051 | 2022-05-27 21:30:52 | 1) Name of the substation and Time: At 400KV Harsh Vihar(20:42hrs)
2) Name of element tripped/restored: 400KV Dadri ckt -I and II
3) Relay Annunciation: On Dadri-I-(B phase, Z-I, 32.6KM)and on Dadri-II(B phase, Z-I,44KM)
4) Details of physically damaged equipment: None
5) Immediate corrective/system normalization steps performed: 220KV B/C put On at 220KV Patparganj.
6) Any other relevant information: All load restored.
Regards, Delhi SLDC |
20220527152738 | 2022-05-27 15:27:39 | 1) Name of the substation and Time: CCGT Bawana
15:05Hrs
2) Name of element tripped/restored: 400KV Bhiwani ckt tripped from both the ends.
No load was affected
3) Relay Annunciation: Relat at CCGT end are R-phase Z-1 Earth fault 70.4km
4) Details of physically damaged equipment: na
5) Immediate corrective/system normalization steps performed: na
6) Any other relevant information: na
Regards, Delhi SLDC |
20220526122026 | 2022-05-26 12:20:27 | 1) Name of the substation and Time: Park Street
2) Name of element tripped/restored: 100MVA 220/66KV T/F-2 charged at no load at 11:36Hrs which was made off on dated 20/5/2022 due to high acetylene gas.
3) Relay Annunciation: na
4) Details of physically damaged equipment: na
5) Immediate corrective/system normalization steps performed: na
6) Any other relevant information: na
Regards, Delhi SLDC |
20220525102158 | 2022-05-25 10:21:59 | 1) Name of the substation and Time: 400kV Bamnauli 10:05Hrs
2) Name of element tripped/restored: 500MVA ICT -3, Charged
3) Relay Annunciation: NIL
4) Details of physically damaged equipment: NIL
5) Immediate corrective/system normalization steps performed: NIL
6) Any other relevant information: NIL
Regards, Delhi SLDC |
20220525065329 | 2022-05-25 06:53:30 | 1) Name of the substation and Time: At Bamnoli(06:08hrs)
2) Name of element tripped/restored: 500MVA, ICT-III
3) Relay Annunciation: OLTC, BUCHOLZ, 30E, B phase
4) Details of physically damaged equipment: None
5) Immediate corrective/system normalization steps performed: No load was affected.
6) Any other relevant information: 220KV I/C -III also tripped.
Regards, Delhi SLDC |
20220524144750 | 2022-05-24 14:47:51 | 1) Name of the substation and Time: At 220 KV Vasant Kunj
2) Name of element tripped/restored: 100 MVA tr-I charged at 14:24 hrs and again tripped on PRV at 14:38 hrs.
3) Relay Annunciation: PRV
4) Details of physically damaged equipment: na
5) Immediate corrective/system normalization steps performed: na
6) Any other relevant information: No Load affected.
Regards, Delhi SLDC |
20220524142432 | 2022-05-24 14:24:33 | 1) Name of the substation and Time: At 220 KV PPK-I
2) Name of element tripped/restored: 100 MVA tr-II charged at 14:12 hrs.
3) Relay Annunciation: NA
4) Details of physically damaged equipment: NA
5) Immediate corrective/system normalization steps performed: NA
6) Any other relevant information: NA
Regards, Delhi SLDC |
20220524123856 | 2022-05-24 12:38:57 | 1) Name of the substation and Time: At 220 KV RK Puram
2) Name of element tripped/restored: 100 MVA-II (220/33 kv) charged at 10:45 hrs
3) Relay Annunciation: NA
4) Details of physically damaged equipment: NA
5) Immediate corrective/system normalization steps performed: NA
6) Any other relevant information: NA
Regards, Delhi SLDC |
20220524123704 | 2022-05-24 12:37:06 | 1) Name of the substation and Time: At 220 KV PPK-I,12:20 hrs
2) Name of element tripped/restored: 100 MVA tr-II tripped on Buchholz relay
3) Relay Annunciation: NA
4) Details of physically damaged equipment: NA
5) Immediate corrective/system normalization steps performed: NA
6) Any other relevant information: No load affected
Regards, Delhi SLDC |
20220524120042 | 2022-05-24 12:00:44 | 1) Name of the substation and Time: At 220 KV Narela
2) Name of element tripped/restored: 100 MVA Tr-II made manually off due to heavy oil leakage in
66 KV, B phae bushing.
3) Relay Annunciation: NA
4) Details of physically damaged equipment: NA
5) Immediate corrective/system normalization steps performed: NA
6) Any other relevant information: NO Load affected.
Regards, Delhi SLDC |
20220524084402 | 2022-05-24 08:44:03 | 1) Name of the substation and Time: Patparganj
07:30Hrs
2) Name of element tripped/restored: 220KV Preet Vihar ckt-I tripped on earth fault.
CVT coming at Patparganj end.
No load was affected.
3) Relay Annunciation: na
4) Details of physically damaged equipment: na
5) Immediate corrective/system normalization steps performed: na
6) Any other relevant information: na
Regards, Delhi SLDC |
20220524064118 | 2022-05-24 06:41:19 | 1) Name of the substation and Time: Patparganj
2) Name of element tripped/restored: 220KV Preet Vihar ckt-I charged at 05:30Hrs.
3) Relay Annunciation: na
4) Details of physically damaged equipment: na
5) Immediate corrective/system normalization steps performed: na
6) Any other relevant information: na
Regards, Delhi SLDC |
20220524063959 | 2022-05-24 06:40:00 | 1) Name of the substation and Time: RK Puram
01:08Hrs
2) Name of element tripped/restored: 100MVA 220/33KV T/F-2 tripped on 86 oil surge alarm.
No load was affected.
3) Relay Annunciation: na
4) Details of physically damaged equipment: na
5) Immediate corrective/system normalization steps performed: na
6) Any other relevant information: na
Regards, Delhi SLDC |
20220524063542 | 2022-05-24 06:35:44 | 1) Name of the substation and Time: Vasant kunj
02:42Hrs
2) Name of element tripped/restored: 100MVA T/F-1 tripped on PRV.
No load was affected
3) Relay Annunciation: na
4) Details of physically damaged equipment: na
5) Immediate corrective/system normalization steps performed: na
6) Any other relevant information: na
Regards, Delhi SLDC |
20220524001551 | 2022-05-24 00:15:52 | 1) Name of the substation and Time: Narela
23:47Hrs
2) Name of element tripped/restored: 220KV Panipat ckt-III tripped on B-phase Z-1.
No load was affected.
3) Relay Annunciation: na
4) Details of physically damaged equipment: nan
5) Immediate corrective/system normalization steps performed: na
6) Any other relevant information: na
Regards, Delhi SLDC |
20220524001401 | 2022-05-24 00:14:02 | 1) Name of the substation and Time: Patparganj
23:01Hrs
2) Name of element tripped/restored: 220KV Preet Vihar ckt-I tripped on earth fault.
CVT coming at Patparganj end.
No load was affected.
3) Relay Annunciation: na
4) Details of physically damaged equipment: na
5) Immediate corrective/system normalization steps performed: na
6) Any other relevant information: na
Regards, Delhi SLDC |
20220522214744 | 2022-05-22 21:47:46 | 1) Name of the substation and Time: At 20:58 HRS
220KV Parkstreet
2) Name of element tripped/restored: 33KV I/c no-I and II energized
3) Relay Annunciation: -
4) Details of physically damaged equipment: -
5) Immediate corrective/system normalization steps performed: -
6) Any other relevant information: 33KV I/c no-I and II energized and system normalised
Regards, Delhi SLDC |
20220522214529 | 2022-05-22 21:45:31 | 1) Name of the substation and Time: At 20:44 Hrs
220KV Park street
2) Name of element tripped/restored: 33KV I/c no-I and 33KV I/C No-II
3) Relay Annunciation: 33KV I/c no-I and II Relay
O/c R,Y and B phase trip,86
4) Details of physically damaged equipment: This tripping occured due to monkey
5) Immediate corrective/system normalization steps performed: -
6) Any other relevant information: Load affected approx 52 MW
Normalised at 20:58 Hrs
Regards, Delhi SLDC |
20220521221525 | 2022-05-21 22:15:25 | 1) Name of the substation and Time: At 22:10HRs
220kV Dial
220kV Okhla
2) Name of element tripped/restored: Dial- BML Ckt2 charged
Okhla-BTPS ckt2 charged
3) Relay Annunciation: NIL
4) Details of physically damaged equipment: NIL
5) Immediate corrective/system normalization steps performed: NIL
6) Any other relevant information: NIL
Regards, Delhi SLDC |
20220521214104 | 2022-05-21 21:41:07 | 1) Name of the substation and Time: 220kV Naraina at 20:31
2) Name of element tripped/restored: 33kV Incomer of 100MVA Transformer No.1,2 and 3 tripped, Load shifted by Discom
3) Relay Annunciation: 33kV Incomer of
Tr-1: E/F, 86
Tr-2: E/F, 86
Tr-3: O/C,E/F, 86
4) Details of physically damaged equipment: 33kV Incomer CB of 100MVA Tr No.3, Y-Phase pole damaged.
5) Immediate corrective/system normalization steps performed: Informed to S/stn staff to take corrective measure
6) Any other relevant information: 33kV Incomer of 100MVA Tr No.1 and 2 charged at 20:59Hrs Load Normalized
Regards, Delhi SLDC |
20220521200449 | 2022-05-21 20:04:49 | 1) Name of the substation and Time: At 400 KV Bawana:100 MVA tr charged at 19:56 hrs.
2) Name of element tripped/restored: NA
3) Relay Annunciation: NA
4) Details of physically damaged equipment: NA
5) Immediate corrective/system normalization steps performed: NA
6) Any other relevant information: NA
Regards, Delhi SLDC |
20220521195025 | 2022-05-21 19:50:26 | 1) Name of the substation and Time: at 22o kv BTPS
2) Name of element tripped/restored: 220KV -BTPS-OKHLA-2
3) Relay Annunciation: 86,Z-2,B PH,5.6KM
4) Details of physically damaged equipment: NA
5) Immediate corrective/system normalization steps performed: NA
6) Any other relevant information: NA
Regards, Delhi SLDC |
20220521194756 | 2022-05-21 19:47:57 | 1) Name of the substation and Time: at 400KV BML
2) Name of element tripped/restored: 220 kv Dail-BML-CKT-2
3) Relay Annunciation: 186 AB,Y PH,
ZONE-1,2.7KM,17 KA
4) Details of physically damaged equipment: NA
5) Immediate corrective/system normalization steps performed: NA
6) Any other relevant information: no load effected
Regards, Delhi SLDC |
20220521191903 | 2022-05-21 19:19:06 | 1) Name of the substation and Time: 220kV Dial 18:53HRs
2) Name of element tripped/restored: 220kV BML-Dial ckt II
3) Relay Annunciation: Dial: Z-II, Y-Ph
BML: Z-I, Y-PH, 2.7KM, 17KA
4) Details of physically damaged equipment: Nil
5) Immediate corrective/system normalization steps performed: Informed to S/stn staff to ckeck the ckt
6) Any other relevant information: Nil
Regards, Delhi SLDC |
20220521184557 | 2022-05-21 18:45:58 | 1) Name of the substation and Time: 400kV Bawana time 18:21HRs
2) Name of element tripped/restored: 100MVA Tr along with 66kV In/comer
3) Relay Annunciation: Diffrential and LV- REF, 86A,B
4) Details of physically damaged equipment: NIL
5) Immediate corrective/system normalization steps performed: Informed to S/stn Staff to check the transformer
6) Any other relevant information: NIL
Regards, Delhi SLDC |
20220521135803 | 2022-05-21 13:58:04 | 1) Name of the substation and Time: At 13:14 HRs
220KV Parkstreet
2) Name of element tripped/restored: Restored 66KV I/c-I
3) Relay Annunciation: -
4) Details of physically damaged equipment: -
5) Immediate corrective/system normalization steps performed: -
6) Any other relevant information: All feeders shifted on bus-I
Regards, Delhi SLDC |
20220521135509 | 2022-05-21 13:55:10 | 1) Name of the substation and Time: At 12:46 HRS
220KV Parkstreet
2) Name of element tripped/restored: 66KV I/C-I
3) Relay Annunciation: 86,O/C Y-phase
4) Details of physically damaged equipment: (Conducter broken and fell on the ground)
5) Immediate corrective/system normalization steps performed: All feeder shifted to Bus-I
and Energized all feeders at 13:14 HRS
6) Any other relevant information: At 13:14 HRS system normalised Approx 74MW load affected
Regards, Delhi SLDC |
20220521125916 | 2022-05-21 12:59:17 | 1) Name of the substation and Time: At 11:22 HRS
220KV Naraina
2) Name of element tripped/restored: 100MVA-3 with 66KV-I/C-3 and I/C-2
tripped
3) Relay Annunciation: Relay 86,O/C R,Y and b phase
4) Details of physically damaged equipment: 33KV kibri place-II CT Breaker damaged and jumper broken touching to bus-II
5) Immediate corrective/system normalization steps performed: Load shifted to Bus-I
and 66KV I/C-3 breaker problem
6) Any other relevant information: Approx load affected 87 MW
Regards, Delhi SLDC |
20220521004938 | 2022-05-21 00:49:39 | 1) Name of the substation and Time: Sarita Vihar
00:27Hrs
2) Name of element tripped/restored: 220KV Pragati ckt tripped.
3) Relay Annunciation: Relay at Sarita Vihar end are Z-1 B-phase 2.28km fault current 23.49KA.
Relay at Pragati end are Z-2 C-phase 13.04km fault current 8.36KA.
No load was affected.
4) Details of physically damaged equipment: na
5) Immediate corrective/system normalization steps performed: na
6) Any other relevant information: na
Regards, Delhi SLDC |
20220520230230 | 2022-05-20 23:02:30 | 1) Name of the substation and Time: Rohini-1
2) Name of element tripped/restored: 220KV Shalimar Bagh ckt-II charged at 22:58Hrs.
3) Relay Annunciation: na
4) Details of physically damaged equipment: na
5) Immediate corrective/system normalization steps performed: na
6) Any other relevant information: na
Regards, Delhi SLDC |
20220520230015 | 2022-05-20 23:00:16 | 1) Name of the substation and Time: Rohini-1
21:35Hrs
2) Name of element tripped/restored: 220KV Shalimar Bagh ckt-II tripped on B-phase differential trip.
No load was affected.
3) Relay Annunciation: na
4) Details of physically damaged equipment: na
5) Immediate corrective/system normalization steps performed: na
6) Any other relevant information: na
Regards, Delhi SLDC |
20220520225608 | 2022-05-20 22:56:09 | 1) Name of the substation and Time: Rohini-1
21:35Hrs
2) Name of element tripped/restored: 220KV Shalimar Bagh ckt-II tripped on B-phase differential trip.
No load was affected.
3) Relay Annunciation: na
4) Details of physically damaged equipment: na
5) Immediate corrective/system normalization steps performed: na
6) Any other relevant information: na
Regards, Delhi SLDC |
20220520225336 | 2022-05-20 22:53:37 | 1) Name of the substation and Time: Gopalpur
2) Name of element tripped/restored: 220KV Mandaula ckt-II tripped at Mandaula end at 22:31Hrs.
3) Relay Annunciation: Relay at Mandaula end are B-phase 12.38km fault current 11.16KA.
4) Details of physically damaged equipment: na
5) Immediate corrective/system normalization steps performed: Load affected was 140MW. Load normalised through 220KV SOW ckt-I at 22:35Hrs.
6) Any other relevant information: na
Regards, Delhi SLDC |
20220520225152 | 2022-05-20 22:51:53 | 1) Name of the substation and Time: Gopalpur
2) Name of element tripped/restored: 220KV Mandaula ckt-II tripped at Mandaula end at 22:31Hrs.
3) Relay Annunciation: Relay at Mandaula end are B-phase 12.38km fault current 11.16KA.
4) Details of physically damaged equipment: na
5) Immediate corrective/system normalization steps performed: Load affected was 140MW. Load normalised through 220KV SOW ckt-I at 22:35Hrs.
6) Any other relevant information: na
Regards, Delhi SLDC |
20220520212726 | 2022-05-20 21:27:26 | 1) Name of the substation and Time: Bamnauli
2) Name of element tripped/restored: 220KV Dial ckt-II charged at 20:04Hrs and load taken at 20:44Hrs and ckt again tripped at 20:49Hrs.
3) Relay Annunciation: Relay at Bamnauli end Z-1 B-phase 2.2km fault current 17.34KA.
Relay at Dial end are Y-phase Z-2 general trip fuse fail.
4) Details of physically damaged equipment: na
5) Immediate corrective/system normalization steps performed: 220KV Mehrauli-Dial ckt-II closed
6) Any other relevant information: na
Regards, Delhi SLDC |
20220520212245 | 2022-05-20 21:22:46 | 1) Name of the substation and Time: Bamnauli
2) Name of element tripped/restored: 220KV Najafgarh ckt-I charged at 19:42Hrs.
3) Relay Annunciation: na
4) Details of physically damaged equipment: na
5) Immediate corrective/system normalization steps performed: na
6) Any other relevant information: na
Regards, Delhi SLDC |
20220520193400 | 2022-05-20 19:34:00 | 1) Name of the substation and Time: Bamnauli
18:57Hrs.
2) Name of element tripped/restored: Najafgarh ckt-I
3) Relay Annunciation: Relay at Bamnauli end are R-phase Z-2 8.6km fault current 7.8KA.
Relay at Najafgarh end are RYB-phase Z-1.
4) Details of physically damaged equipment: na
5) Immediate corrective/system normalization steps performed: na
6) Any other relevant information: No load was affected
Regards, Delhi SLDC |
20220520193023 | 2022-05-20 19:30:30 | 1) Name of the substation and Time: Dial
18:55Hrs
2) Name of element tripped/restored: Bamnauli ckt-II
3) Relay Annunciation: Relay at Dial end are YB-phase Z-2 general trip.
Relay at Bamnauli end are B-phase Z-1 2.59km fault current 17.5KA.
4) Details of physically damaged equipment: na
5) Immediate corrective/system normalization steps performed: Mehrauli-Dial ckt-II closed.
6) Any other relevant information: No load was affected
Regards, Delhi SLDC |
20220520130148 | 2022-05-20 13:01:49 | 1) Name of the substation and Time: At 12:55 HRS 220 KV Sarita vihar
2) Name of element tripped/restored: 220KV SVR-MBG CKT
3) Relay Annunciation: -
4) Details of physically damaged equipment: -
5) Immediate corrective/system normalization steps performed: -
6) Any other relevant information: CKT Energized at 12:55HRS
Regards, Delhi SLDC |
20220520062056 | 2022-05-20 06:20:57 | 1) Name of the substation and Time: At 220KV Rajghat(05:19hrs)
2) Name of element tripped/restored: 33KV I/c-I, 33KV I/C-II and 33KV B/C
3) Relay Annunciation: 33KV I/C-I and II on O/C ,E/F ,B phase while B/C on W/I.
4) Details of physically damaged equipment: None
5) Immediate corrective/system normalization steps performed: Discoms asked to C/O load till clearance from grid.
6) Any other relevant information: Monkey found electrocuted in the yard.
Regards, Delhi SLDC |
20220519163210 | 2022-05-19 16:32:11 | 1) Name of the substation and Time: Sarita Vihar
16:08Hrs
2) Name of element tripped/restored: 220KV Maharani Bagh ckt tripped on C-phase Z-1 4.5km, fault current 4KA.
No load was affected.
3) Relay Annunciation: na
4) Details of physically damaged equipment: na
5) Immediate corrective/system normalization steps performed: na
6) Any other relevant information: na
Regards, Delhi SLDC |
20220517194233 | 2022-05-17 19:42:34 | 1) Name of the substation and Time: At 19:40 HRS
400KV MBG
2) Name of element tripped/restored: 220KV SVR MBG CKT Energized
3) Relay Annunciation: --
4) Details of physically damaged equipment: -
5) Immediate corrective/system normalization steps performed: -
6) Any other relevant information: -
Regards, Delhi SLDC |
20220517190610 | 2022-05-17 19:06:11 | 1) Name of the substation and Time: At 18:46 Hrs
400KV Maharani bagh
2) Name of element tripped/restored: 220KV SVR ckt
3) Relay Annunciation: SVR-Trip zone-I,Trip b,c phase distance 8.5 KM,Ia 70.11A,Ib 2.149KA,Ic2.137KA
In 35.06A
MBG
Trip L1L2
Distance 2.4KM L1-0A
L218KA and l318KA
4) Details of physically damaged equipment: -
5) Immediate corrective/system normalization steps performed: -
6) Any other relevant information: Noload affected
Regards, Delhi SLDC |
20220517120214 | 2022-05-17 12:02:15 | SCADA Data for the Following Sub-Stations/lines/elements are suspect or not available:
1) Data of the following stations are not updating :220 KV Peeragarhi,220 KV Trama centre,220 Kv Rohini-II 220 KV Wazirpur,220 KV IP lines data and 315 MVA ICT-II at Bawana
2) na
3) na
4) na
5) na
6) na
Regards, Delhi SLDC |
20220515233950 | 2022-05-15 23:39:51 | 1) Name of the substation and Time: Harsh Vihar
2) Name of element tripped/restored: 400KV Dadri ckt-I charged at 23:25Hrs.
3) Relay Annunciation: na
4) Details of physically damaged equipment: na
5) Immediate corrective/system normalization steps performed: na
6) Any other relevant information: na
Regards, Delhi SLDC |
20220515223539 | 2022-05-15 22:35:40 | 1) Name of the substation and Time: Harsh Vihar
21:26Hrs
2) Name of element tripped/restored: 400KV Dadri ckt-I tripped on general trip RYB phase 0.1km Z-1 fault current 10.65KA SOTF.
No load was affected.
3) Relay Annunciation: na
4) Details of physically damaged equipment: na
5) Immediate corrective/system normalization steps performed: na
6) Any other relevant information: na
Regards, Delhi SLDC |
20220515192509 | 2022-05-15 19:25:09 | 1) Name of the substation and Time: Tughlakabad
2) Name of element tripped/restored: 220KV Okhla ckt-I charged at 19:23Hrs.
3) Relay Annunciation: na
4) Details of physically damaged equipment: na
5) Immediate corrective/system normalization steps performed: na
6) Any other relevant information: na
Regards, Delhi SLDC |
20220515191346 | 2022-05-15 19:13:46 | 1) Name of the substation and Time: Narela
2) Name of element tripped/restored: 220KV DSIDC ckt-I charged at 19:05Hrs.
3) Relay Annunciation: na
4) Details of physically damaged equipment: na
5) Immediate corrective/system normalization steps performed: na
6) Any other relevant information: na
Regards, Delhi SLDC |
20220515181639 | 2022-05-15 18:16:40 | 1) Name of the substation and Time: Gopalpur
2) Name of element tripped/restored: 220KV Mandaula ckt-I charged at 17:51Hrs.
3) Relay Annunciation: na
4) Details of physically damaged equipment: na
5) Immediate corrective/system normalization steps performed: na
6) Any other relevant information: na
Regards, Delhi SLDC |
20220515181141 | 2022-05-15 18:11:42 | 1) Name of the substation and Time: Tughlakabad
2) Name of element tripped/restored: 220KV Mehrauli ckt-II charged at 17:51Hrs.
3) Relay Annunciation: na
4) Details of physically damaged equipment: na
5) Immediate corrective/system normalization steps performed: na
6) Any other relevant information: na
Regards, Delhi SLDC |
20220515170952 | 2022-05-15 17:09:52 | 1) Name of the substation and Time: At 220KV Narela(14:20hrs)
2) Name of element tripped/restored: 220KV DSIIDC ckt-I
3) Relay Annunciation: R phase ,Zone-I
4) Details of physically damaged equipment: None
5) Immediate corrective/system normalization steps performed: Patrolling underway.
6) Any other relevant information: circuit was charged at No load from Narela end.
Regards, Delhi SLDC |
20220515170536 | 2022-05-15 17:05:37 | 1) Name of the substation and Time: At 220KV Tughlakabad(14:46hrs)
2) Name of element tripped/restored: 220KV Okhla ckt-I
3) Relay Annunciation: Y and B phase trip(24KA fault), 3.8KM distance.
4) Details of physically damaged equipment: None reported by grid staff.
5) Immediate corrective/system normalization steps performed: 220KV B/C put ON at Okhla and load normalized on BTPS ckts.
6) Any other relevant information: 220KV Tughlakabad ckt-II is already out since yesterday.
Regards, Delhi SLDC |
20220515170052 | 2022-05-15 17:00:53 | 1) Name of the substation and Time: At Tughlakabad(14:01hrs)
2) Name of element tripped/restored: 220KV Mehrauli ckt-II
3) Relay Annunciation: R phase,12.82KA fault, 9 KM distance.
4) Details of physically damaged equipment: None
5) Immediate corrective/system normalization steps performed: BSES asked to C/O their load.
6) Any other relevant information: Partial load of 220KV Mehrauli and Vasant Kunj station was affected. Line Patrolling underway.
Regards, Delhi SLDC |
20220515151917 | 2022-05-15 15:19:18 | 1) Name of the substation and Time: gopalpur 13:23 hrs
2) Name of element tripped/restored: supply failed from mandola on 220 kV mandola 1
3) Relay Annunciation: distance protection at mandola end
4) Details of physically damaged equipment: none reported
5) Immediate corrective/system normalization steps performed: load taken on SoW -2
6) Any other relevant information: line being patrolled
Regards, Delhi SLDC |
20220514230039 | 2022-05-14 23:00:40 | 1) Name of the substation and Time: At22:50 HRS
220KV Parkstreet
2) Name of element tripped/restored: 100MVA-I with 66KV I/C No-I energized
3) Relay Annunciation: -
4) Details of physically damaged equipment: -
5) Immediate corrective/system normalization steps performed: -
6) Any other relevant information: -
Regards, Delhi SLDC |
20220514195122 | 2022-05-14 19:51:23 | 1) Name of the substation and Time: At 18:02 HRS
220KV Parkstreet
2) Name of element tripped/restored: 100MVA-I with 66KV I/C No-I and 66KV I/C No-II
3) Relay Annunciation: 100MVA-I O/C and E/F
66Kvi/C-II intertripping
4) Details of physically damaged equipment: 66KV Buscoupler B-phase CT Damaged/burnt
5) Immediate corrective/system normalization steps performed: At 18:54 Hrs 66KV I/C-II charged
6) Any other relevant information: approx 100MW Load affected.
Maintenanace team will test 100MVa-I transformer
Regards, Delhi SLDC |
20220514172538 | 2022-05-14 17:25:39 | 1) Name of the substation and Time: At 17:00Hrs,220 KV Tunglakabad
2) Name of element tripped/restored: 220 Kv Okhla-Tugb ckt-I Restored
3) Relay Annunciation: -
4) Details of physically damaged equipment: -
5) Immediate corrective/system normalization steps performed: -
6) Any other relevant information: -
Regards, Delhi SLDC |
20220514142359 | 2022-05-14 14:24:01 | 1) Name of the substation and Time: tughlakabad @13:29
2) Name of element tripped/restored: okhla ckt 1 and 2
3) Relay Annunciation: distance protection
4) Details of physically damaged equipment: none reported by O and M
5) Immediate corrective/system normalization steps performed: Okhla Load taken on BTPS by closing bus coupler
6) Any other relevant information: 100 MW
Regards, Delhi SLDC |
20220513160812 | 2022-05-13 16:08:20 | 1) Name of the substation and Time: 220kV Pappankalan 2 at 15:55hrs
2) Name of element tripped/restored: 220kV Bamnauli ckt 2 normalized
3) Relay Annunciation: -
4) Details of physically damaged equipment: -
5) Immediate corrective/system normalization steps performed: -
6) Any other relevant information: -
Regards, Delhi SLDC |
20220513133054 | 2022-05-13 13:30:56 | 1) Name of the substation and Time: At 400kV Bamnauli 12:58 Hrs
2) Name of element tripped/restored: 220kV Pappankalan 2 ckt 2 at Bamnoli end only
3) Relay Annunciation: Z-1, 8.6km, 8.9kA R Ph.
4) Details of physically damaged equipment: -
5) Immediate corrective/system normalization steps performed: 220kV B/C put on at 13:07 hrs at PPK-2
6) Any other relevant information: 85MW load effected. Delayed normalization due to communication failure. Lne being patrolled.
Regards, Delhi SLDC |
20220510214728 | 2022-05-10 21:47:29 | SCADA Data for the Following Sub-Stations/lines/elements are suspect or not available:
1) Data of the following station are not updating : 1) 220 KV Masjid Moth,
2)Trama center,
3) Peeragarhi
4) Rohini-II
5) Wazirpur.
2) na
3) na
4) na
5) na
6) na
Regards, Delhi SLDC |
20220510203235 | 2022-05-10 20:32:35 | 1) Name of the substation and Time: 220kV SOW 20:28 HRs
2) Name of element tripped/restored: SOW-MAnadaula ckt-1 charged
3) Relay Annunciation: Nil
4) Details of physically damaged equipment: Nil
5) Immediate corrective/system normalization steps performed: Nil
6) Any other relevant information: Nil
Regards, Delhi SLDC |
20220510190318 | 2022-05-10 19:03:19 | 1) Name of the substation and Time: 220kV SOW 18:56
2) Name of element tripped/restored: 220kV SOW-Mandaula Ckt 3 charged
3) Relay Annunciation: Nil
4) Details of physically damaged equipment: Nil
5) Immediate corrective/system normalization steps performed: Nil
6) Any other relevant information: Nil
Regards, Delhi SLDC |
20220510184814 | 2022-05-10 18:48:15 | 1) Name of the substation and Time: 220kV Kanjhawal 18:42 HRs
2) Name of element tripped/restored: 20MVA Tr NO.1 charged
3) Relay Annunciation: NIL
4) Details of physically damaged equipment: Nil
5) Immediate corrective/system normalization steps performed: Nil
6) Any other relevant information: Nil
Regards, Delhi SLDC |
20220510184715 | 2022-05-10 18:47:15 | 1) Name of the substation and Time: 220kV Kanjhawal 18:42 HRs
2) Name of element tripped/restored: 20MVA Tr NO.1 charged
3) Relay Annunciation: NIL
4) Details of physically damaged equipment: Nil
5) Immediate corrective/system normalization steps performed: Nil
6) Any other relevant information: Nil
Regards, Delhi SLDC |
20220510182712 | 2022-05-10 18:27:14 | 1) Name of the substation and Time: 220kV SOW, 18:06HRs
2) Name of element tripped/restored: 220kV SOW-Mandaula ckt 1 and ckt 3
3) Relay Annunciation: SOW-Mandaula ckt1, at SOW- Y-B Ph, Distance Z1 A/R Lockout, 2.741 Km, 86ABC.
At Mandaula- Y-B Phase, 11.00Km,
No Indication at SOW-Mandaula ckt 3 at both ends, only CB from Mandaula end tripped, CB at SOW end is in ON position
4) Details of physically damaged equipment: Nil
5) Immediate corrective/system normalization steps performed: SOW staff is informed to check the ckt and give clearance
6) Any other relevant information: Nil
Regards, Delhi SLDC |
20220510122748 | 2022-05-10 12:27:48 | 1) Name of the substation and Time: Kanjhawala
2) Name of element tripped/restored: 20MVA T/F-1 tripped on RYB differential at 11:48Hrs.
No load was affected.
3) Relay Annunciation: na
4) Details of physically damaged equipment: na
5) Immediate corrective/system normalization steps performed: na
6) Any other relevant information: na
Regards, Delhi SLDC |
20220510114433 | 2022-05-10 11:44:34 | 1) Name of the substation and Time: Test Message. Please Ignore
2) Name of element tripped/restored: Test Message. Please Ignore
3) Relay Annunciation: Test Message. Please Ignore
4) Details of physically damaged equipment: Test Message. Please Ignore
5) Immediate corrective/system normalization steps performed: Test Message. Please Ignore
6) Any other relevant information: Test Message. Please Ignore
Regards, Delhi SLDC |
20220509101941 | 2022-05-09 10:19:42 | SCADA Data for the Following Sub-Stations/lines/elements are suspect or not available:
1) Data of the following station are not updating from last few days:
2) 220 KV Masjid Moth,Trama center,Peeragarhi.
3) na
4) nan
5) na
6) na
Regards, Delhi SLDC |
20220508232503 | 2022-05-08 23:25:03 | 1) Name of the substation and Time: IP, 19:05
2) Name of element tripped/restored: 33 kV Incomer 1 and 2
3) Relay Annunciation: EF
4) Details of physically damaged equipment: Bay 10
5) Immediate corrective/system normalization steps performed: .
6) Any other relevant information: 33 kV Bay 10 still being attended by DTL maintenance
Regards, Delhi SLDC |
20220508202303 | 2022-05-08 20:23:04 | 1) Name of the substation and Time: 220 kV IP at 18:35 hrs
2) Name of element tripped/restored: 33 kV incomer 1 and 2,
3) Relay Annunciation: EF
4) Details of physically damaged equipment: B phase insulator disc of 33 kV Bay 10, EL, East Bus damaged
5) Immediate corrective/system normalization steps performed: immediate load loss of about 100 MW
6) Any other relevant information: monkey electrocuted at Bay 10.
Regards, Delhi SLDC |
20220505154921 | 2022-05-05 15:49:22 | 1) Name of the substation and Time: At 400kV Bawana at 12:24 Hrs
2) Name of element tripped/restored: CGL Make 315MVA ICT 2 energized on no load
3) Relay Annunciation: -
4) Details of physically damaged equipment: -
5) Immediate corrective/system normalization steps performed: -
6) Any other relevant information: -
Regards, Delhi SLDC |
20220504184340 | 2022-05-04 18:43:41 | 1) Name of the substation and Time: Bawana
2) Name of element tripped/restored: 220KV DSIDC ckt-I charged at 17:40Hrs.
3) Relay Annunciation: na
4) Details of physically damaged equipment: na
5) Immediate corrective/system normalization steps performed: na
6) Any other relevant information: na
Regards, Delhi SLDC |
20220504153742 | 2022-05-04 15:37:43 | 1) Name of the substation and Time: 400KV BAWANA 14.20
2) Name of element tripped/restored: 220KV DSIDC CKT-1 and 2
3) Relay Annunciation: 220KV DSIDC BAWANA CKT-1
ZONE 1 ,RYB PH TRIP,DIS OPTD,FALUT LOCATION 4.36 KM ,ia=12.53 ka, ib=12.2 ka ic=404.7 amp
220KV DSIDC BAWANA CKT-2
ZONE 1 ,RYB PH TRIP,DIS OPTD,FALUT LOCATION 40KM IA=508 AMP,IB=6.035 KA ,IC 5.85 KA
4) Details of physically damaged equipment: NA
5) Immediate corrective/system normalization steps performed: 220KV NARELA CKT-1 and 2 MADE ON AND SUPPLY RESTORED
6) Any other relevant information: 160 MW EFFECTED FOR 15 MINT.
Regards, Delhi SLDC |
20220503104049 | 2022-05-03 10:40:50 | 1) Name of the substation and Time: Gopalpur
2) Name of element tripped/restored: 160MVA T/F-4 tripped without indication at 10:01Hrs.
Load affected was 49MW, discoms had shifted their load.
At 10:16Hrs 160MVA T/F-4 charged.
3) Relay Annunciation: na
4) Details of physically damaged equipment: na
5) Immediate corrective/system normalization steps performed: na
6) Any other relevant information: na
Regards, Delhi SLDC |
20220503103703 | 2022-05-03 10:37:03 | 1) Name of the substation and Time: Geeta Colony
2) Name of element tripped/restored: 100MVA T/F-2 charged at 10:20Hrs.
3) Relay Annunciation: na
4) Details of physically damaged equipment: na
5) Immediate corrective/system normalization steps performed: na
6) Any other relevant information: na
Regards, Delhi SLDC |
20220503103406 | 2022-05-03 10:34:07 | 1) Name of the substation and Time: Geeta Colony
2) Name of element tripped/restored: 100MVA T/F-2 charged at 10:20Hrs.
3) Relay Annunciation: na
4) Details of physically damaged equipment: na
5) Immediate corrective/system normalization steps performed: na
6) Any other relevant information: na
Regards, Delhi SLDC |
20220503095258 | 2022-05-03 09:52:59 | 1) Name of the substation and Time: Geeta Colony
2) Name of element tripped/restored: 100MVA T/F-2 tripped on buchholz relay at 09:22Hrs.
Load affected was 18MW.
Load normalised through 33KV B/C at 09:27Hrs.
3) Relay Annunciation: na
4) Details of physically damaged equipment: na
5) Immediate corrective/system normalization steps performed: na
6) Any other relevant information: na
Regards, Delhi SLDC |
20220501120608 | 2022-05-01 12:06:09 | 1) Name of the substation and Time: 220kV Maharani bagh 12:02Hrs
2) Name of element tripped/restored: Maharanibagh- Gazipur ckt 2 charged
3) Relay Annunciation: NIL
4) Details of physically damaged equipment: Nil
5) Immediate corrective/system normalization steps performed: Nil
6) Any other relevant information: Nil
Regards, Delhi SLDC |
20220501110243 | 2022-05-01 11:02:44 | 1) Name of the substation and Time: 220kV Maharani bagh at 10:43 AM
2) Name of element tripped/restored: 220kV Maharani bagh- Gazipur ckt-II
3) Relay Annunciation: B-Phase Differential
4) Details of physically damaged equipment: NIL
5) Immediate corrective/system normalization steps performed: Conveyed to 220kV S/stn staff to check the ckt and give clearance if ckt found ok
6) Any other relevant information: Nil
Regards, Delhi SLDC |
20220429170739 | 2022-04-29 17:07:40 | 1) Name of the substation and Time: At Harsh Vihar(16:58hrs)
2) Name of element tripped/restored: 400KV Dadri-II
3) Relay Annunciation: R-N phase fault at Dadri end.
4) Details of physically damaged equipment: None.
5) Immediate corrective/system normalization steps performed: System was already restored.
6) Any other relevant information: ICT-III was energized at 16:12hrs.(It was erroneously reported to be 15:55 in earlier message).
Regards, Delhi SLDC |
20220429170147 | 2022-04-29 17:01:47 | 1) Name of the substation and Time: At Harsh Vihar(15:22hrs).
2) Name of element tripped/restored: 400KV Dadri-I
3) Relay Annunciation: E/F , B phase, D/P ,4.10KM at Dadri end.
4) Details of physically damaged equipment: None.
5) Immediate corrective/system normalization steps performed: Circuit restored after supply fron Dadri received.
6) Any other relevant information: 400KV B/C at Harsh Vihar was normalized simultaneously. ICT-III normalized at 15:55hrs.
Regards, Delhi SLDC |
20220429165343 | 2022-04-29 16:53:44 | 1) Name of the substation and Time: At Harsh Vihar(14:43hrs)
2) Name of element tripped/restored: Supply from 400KV Dardri-II failed. Earlier supply from Dadri -I had failed at 14:28hrs.
3) Relay Annunciation: Supply fail from Dadri.Breakers of Dadri I and II didnt trip at Harsh Vihar station.
4) Details of physically damaged equipment: None.
5) Immediate corrective/system normalization steps performed: 220Kv Gazipur ckt put ON and load of Patparganj station restored. Load of Harsh Vihar and Preet Vihar station were C/O by BSES.
6) Any other relevant information: Dadri-Harsh Vihar Ckts were feeding Preet Vihar and Patparganj station at the time of tripping. Simultaneously 400KV B/C and ICT-III had tripped at Harsh Vihar (14:43hrs).
Regards, Delhi SLDC |
20220428193303 | 2022-04-28 19:33:04 | 1) Name of the substation and Time: At 17:20HRS ,400KV MUNDKA
2) Name of element tripped/restored: 315 MVA-ICT-IV
3) Relay Annunciation: -
4) Details of physically damaged equipment: -
5) Immediate corrective/system normalization steps performed: -
6) Any other relevant information: 315 MVA-ICT-IV energised at 17:20HRS
Regards, Delhi SLDC |
20220427212624 | 2022-04-27 21:26:25 | 1) Name of the substation and Time: 220kV SGTN at 16:45Hrs
2) Name of element tripped/restored: 160MVA Tr no. 1, manually switched off by S/stn staff
3) Relay Annunciation: Low gas pressure in BPI-III at 66kV In comer No.1, Line Isolator
4) Details of physically damaged equipment: NIL
5) Immediate corrective/system normalization steps performed: Check the gas pressure and take necessary action
6) Any other relevant information: NIL
Regards, Delhi SLDC |
20220427073520 | 2022-04-27 07:35:21 | 1) Name of the substation and Time: Patparganj
06:50Hrs
2) Name of element tripped/restored: 100MVA 220/66KV T/F-1 tripped without indication.
No load was affected.
3) Relay Annunciation: na
4) Details of physically damaged equipment: na
5) Immediate corrective/system normalization steps performed: na
6) Any other relevant information: na
Regards, Delhi SLDC |
20220427073319 | 2022-04-27 07:33:20 | 1) Name of the substation and Time: Naraina
2) Name of element tripped/restored: 33KV I/C-2 and 33KV I/C-3 tripped on O/C B=phase E/F at 05:22Hrs. Grid staff had reported fire in 33KV Bus-II B-phase cable extension.
Load affected was 65MW.
Discoms had shifted their load.
At 06:40Hrs 33KV I/C-3 and 33KV feeders charged on 33KV Bus-I.
At 07:08Hrs 33KV I/C-2 charged.
Presently 33KV Bus-II is out
3) Relay Annunciation: na
4) Details of physically damaged equipment: na
5) Immediate corrective/system normalization steps performed: na
6) Any other relevant information: na
Regards, Delhi SLDC |
20220427073234 | 2022-04-27 07:32:35 | 1) Name of the substation and Time: Naraina
2) Name of element tripped/restored: 33KV I/C-2 and 33KV I/C-3 tripped on O/C B=phase E/F at 05:22Hrs. Grid staff had reported fire in 33KV Bus-II B-phase cable extension.
Load affected was 65MW.
Discoms had shifted their load.
At 06:40Hrs 33KV I/C-3 and 33KV feeders charged on 33KV Bus-I.
At 07:08Hrs 33KV I/C-2 charged.
Presently 33KV Bus-II is out
3) Relay Annunciation: na
4) Details of physically damaged equipment: na
5) Immediate corrective/system normalization steps performed: na
6) Any other relevant information: na
Regards, Delhi SLDC |
20220426133339 | 2022-04-26 13:33:40 | 1) Name of the substation and Time: 11:31 at 220kV PPG
2) Name of element tripped/restored: 220kV IP-1 and 2, 220kV Geeta Colony -1 and 2, 220kV Preet Vihar -1 and 2, 100MVA (220/66kV) Tx 2
3) Relay Annunciation: Bus Bar Protection.
4) Details of physically damaged equipment: -
5) Immediate corrective/system normalization steps performed: Partial load normalised through Pragati bus coupler
6) Any other relevant information: Suppply fail at IP, RPH, Pragati Bus-2 and Park Street 66kV. Load Loss 430 MW approx and generation loss 270 MW approx.
EVentually Load normalised by 11:58Hrs and system normalised by 12:05 Hrs. Generation being brought up on bar.
Regards, Delhi SLDC |
20220426105218 | 2022-04-26 10:52:19 | 1) Name of the substation and Time: At 220kV lodhi Road 09:07 Hrs
2) Name of element tripped/restored: 220kV Maharanibagh ckt 2 normalized
3) Relay Annunciation: -
4) Details of physically damaged equipment: -
5) Immediate corrective/system normalization steps performed: -
6) Any other relevant information: -
Regards, Delhi SLDC |
20220426082801 | 2022-04-26 08:28:02 | 1) Name of the substation and Time: At Maharani Bagh(22:02hrs)
2) Name of element tripped/restored: 220KV Lodi Road ckt-II
3) Relay Annunciation: Zone-1, 2.4KM, (L3)21.18KA fault current.
4) Details of physically damaged equipment: Not known yet.
5) Immediate corrective/system normalization steps performed: 220KV B/C put ON at Lodi Road end.
6) Any other relevant information: Supply fail at Lodi Road end.
Regards, Delhi SLDC |
20220426012027 | 2022-04-26 01:20:28 | 1) Name of the substation and Time: At Vasant Kunj(22:57hrs)
2) Name of element tripped/restored: 100MVA-I(220/66KV) transformer.
3) Relay Annunciation: 96 bus bar protection
4) Details of physically damaged equipment: None
5) Immediate corrective/system normalization steps performed: 160MVA transformer taken on Load.
6) Any other relevant information: However No load was affected.
Regards, Delhi SLDC |
20220426011653 | 2022-04-26 01:16:53 | 1) Name of the substation and Time: At Bamnauli(23:40hrs)
2) Name of element tripped/restored: 220KV Dial ckt-II
3) Relay Annunciation: Zone-I, B phase, 17.69KA fault.
4) Details of physically damaged equipment: none
5) Immediate corrective/system normalization steps performed: 220KV Vasant Kunj-RK Puram ckt-II put ON in case of tripping of Bamnauli-DIAL ckt-I.
6) Any other relevant information: ckt tried from Bamnauli end , held OK.
Regards, Delhi SLDC |
20220426011258 | 2022-04-26 01:13:00 | 1) Name of the substation and Time: AT Tughlakabad(22:50hrs)
2) Name of element tripped/restored: 220KV Mehrauli-II
3) Relay Annunciation: D/P R and Y phase trip, 14KA fault.
4) Details of physically damaged equipment: None
5) Immediate corrective/system normalization steps performed: load C/O by BSES,B/C put ON at Vasant Kunj
6) Any other relevant information: Ckt tried from Tughlakabad end after patrolling.
Regards, Delhi SLDC |
20220425221812 | 2022-04-25 22:18:13 | 1) Name of the substation and Time: BAMNAULI 21:24
2) Name of element tripped/restored: DIAL2
3) Relay Annunciation: DP Z1 2.627 km B-Ph 17.69 kA
4) Details of physically damaged equipment: NONE REPORTED
5) Immediate corrective/system normalization steps performed: NO LOAD AFFECTED
6) Any other relevant information: STRONG WINDS REPORTED
Regards, Delhi SLDC |
20220425212717 | 2022-04-25 21:27:17 | 1) Name of the substation and Time: At 220KV Tughlakabad(20:37hrs)
2) Name of element tripped/restored: 220KV Mehrauli-II
3) Relay Annunciation: Zone-II, R and Y phase trip, 10.10KM, and 14.22KA fault.
4) Details of physically damaged equipment: NOT KNOWN YET.
5) Immediate corrective/system normalization steps performed: BSES ASKED TO C/O LOAD.
220kV B/C PUT ON AT VASANT KUNJ STATION.
66KV FATEHPUR BERI-I C/O AT MEHRAULI STATION.
6) Any other relevant information: 220KV Bus-II at Mehrauli still out. Due to protection issues at 220KV Mehrauli station ,Supply from DIAL avoided at Mehrauli .
Regards, Delhi SLDC |
20220424225029 | 2022-04-24 22:50:32 | 1) Name of the substation and Time: 220kV Lodhi Road 22:05Hrs
2) Name of element tripped/restored: 100MVA TR NO.1 Tripped, 49MW Load affect for 7 Min
3) Relay Annunciation: Diff R,Y,B REF HV side, 86A, 33kV In Comer 86 A and B
4) Details of physically damaged equipment: Nil
5) Immediate corrective/system normalization steps performed: Informed Discom to shift load
6) Any other relevant information: Nil
Regards, Delhi SLDC |
20220424160402 | 2022-04-24 16:04:04 | 1) Name of the substation and Time: Mehrauli
2) Name of element tripped/restored: At 13:09Hrs 160MVA T/F-4 charged.
At 14:23Hrs 100MVA T/F-1 and 100MVA T/F-3 charged.
At 14:30Hrs 100MVA T/F-2 charged and presently no load is affected.
3) Relay Annunciation: na
4) Details of physically damaged equipment: na
5) Immediate corrective/system normalization steps performed: na
6) Any other relevant information: na
Regards, Delhi SLDC |
20220424122251 | 2022-04-24 12:22:54 | 1) Name of the substation and Time: Mehrauli
10:42Hrs
2) Name of element tripped/restored: 160MVA T/F-4 tripped on 86.
66KV I/C-4 and 66KV I/C-2 tripped on O/C Y-phase. Grid staff have reported blast and fire in Y-phase CT of 66KV C-2. Load affected was approx 100MW.
All outgoing feeder have been made off to control the fire on 66KV side and discoms have shifted their load.
3) Relay Annunciation: na
4) Details of physically damaged equipment: na
5) Immediate corrective/system normalization steps performed: na
6) Any other relevant information: na
Regards, Delhi SLDC |
20220424081720 | 2022-04-24 08:17:21 | 1) Name of the substation and Time: At08:07HRS,PPK-II
2) Name of element tripped/restored: 220KV Bamnauli-ckt-I
3) Relay Annunciation: -
4) Details of physically damaged equipment: -
5) Immediate corrective/system normalization steps performed: -
6) Any other relevant information: 220KV CB of bamnauli ckt-I closed held o.k
and 220KV Buscoupler off
Regards, Delhi SLDC |
20220424065510 | 2022-04-24 06:55:11 | 1) Name of the substation and Time: At 05:41 HRS , 220KV PPK-II
2) Name of element tripped/restored: 220KV Bamnauli ckt-I
3) Relay Annunciation: Bamnauli-186A and B,86T, Main-I Zone-I Distance 5.9KM,IB-13.65KA
PPK-II
Main-I B and N Trip,zone-I distance 6.4 KM main-II R and Y PH TRIP ,86A
4) Details of physically damaged equipment: -
5) Immediate corrective/system normalization steps performed: At 05:43 hrs, 220KV Buscoupler closed at PPK-II
Load normalised
6) Any other relevant information: At 06:11 HRS Tried to close at Bamnauli end held OK
and Circuit Breaker didnot close at PPK-II due to P/D relay operated
Regards, Delhi SLDC |
20220420000833 | 2022-04-20 00:08:34 | 1) Name of the substation and Time: At 220 KV Sarita Vihar
2) Name of element tripped/restored: 220 KV Maharani bagh ckt charged at 00:05 hrs
3) Relay Annunciation: na
4) Details of physically damaged equipment: na
5) Immediate corrective/system normalization steps performed: na
6) Any other relevant information: na
Regards, Delhi SLDC |
20220419212935 | 2022-04-19 21:29:36 | 1) Name of the substation and Time: 220kV Sarita Vihar, 21:24HRs
2) Name of element tripped/restored: 220kV Sarita vihar-Maharanibagh ckt
3) Relay Annunciation: Nil
4) Details of physically damaged equipment: Sparking reported by local residents near tower no.30
5) Immediate corrective/system normalization steps performed: 220kV Sarita vihar- Maharanibagh ckt switched off
6) Any other relevant information: Informed to concerned DGM and Manager to look into this matter
Regards, Delhi SLDC |
20220415230619 | 2022-04-15 23:06:20 | 1) Name of the substation and Time: 22:28Hrs 220 KV Geeta Colony S/Stn
2) Name of element tripped/restored: 100 P.Tr. NO-1
3) Relay Annunciation: -
4) Details of physically damaged equipment: Removed the kite thread on 220 KV Bus-II
5) Immediate corrective/system normalization steps performed: -
6) Any other relevant information: Total System Normlised at 220 Geeta Colony S/Stn
Regards, Delhi SLDC |
20220415204028 | 2022-04-15 20:40:29 | 1) Name of the substation and Time: At 19:45 HRS,220KV RPH
2) Name of element tripped/restored: 220KV IP ckt -I
3) Relay Annunciation: -
4) Details of physically damaged equipment: -
5) Immediate corrective/system normalization steps performed: 19:45 HRS ckt normalised
6) Any other relevant information: -system is normal at RPH
Regards, Delhi SLDC |
20220415203803 | 2022-04-15 20:38:04 | 1) Name of the substation and Time: At:18:40 HRS,220KV RPH
2) Name of element tripped/restored: 220KV IP Ckt-I
3) Relay Annunciation: 86A,B,C and 186X and Distance zone-I
4) Details of physically damaged equipment: -
5) Immediate corrective/system normalization steps performed: AT 18:45 HRS 33KV Bus coupler closed load normalised.
Approx 37MW Load affected
6) Any other relevant information: -
Regards, Delhi SLDC |
20220415203335 | 2022-04-15 20:33:36 | 1) Name of the substation and Time: At 18:40 HRS,220KV Geeta Colony
2) Name of element tripped/restored: 220KV SOW-Ckt-I,220KV BUS COUPLER,220KV PPG-I,100MVA-I
3) Relay Annunciation: Main-I BUS BAR OPERATED
4) Details of physically damaged equipment: -
5) Immediate corrective/system normalization steps performed: 18:57 HRS 33KV BUS COUPLER closed load Normalised,approx 40MW load affected
19:10 220Kv Bus coupler closed
19:20 220KV SOW-I closed
19:24 PPG-I closed
6) Any other relevant information: System is normal except 100MVA-I
Regards, Delhi SLDC |
20220415001459 | 2022-04-15 00:15:00 | 1) Name of the substation and Time: bamnauli 23:36
2) Name of element tripped/restored: najafgarh 1
3) Relay Annunciation: na
4) Details of physically damaged equipment: na
5) Immediate corrective/system normalization steps performed: na
6) Any other relevant information: as per request of maintenance, load to be taken in the morning
Regards, Delhi SLDC |
20220414200942 | 2022-04-14 20:09:43 | 1) Name of the substation and Time: At 220KV Najafgarh(19:28hrs)
2) Name of element tripped/restored: 220KV Bamnauli-I
3) Relay Annunciation: R phase, D/P.
4) Details of physically damaged equipment: No damage but tripped with sparking and heavy sound.
5) Immediate corrective/system normalization steps performed: Load taken on 220KV Mundka ckt.
6) Any other relevant information: Both end tripping.
Regards, Delhi SLDC |
20220412192117 | 2022-04-12 19:21:18 | 1) Name of the substation and Time: 220kV Masjid Moth at 17:55 Hrs
2) Name of element tripped/restored: 33kV I/c 3 tripped on 86. 33kV Balaji Yph CT blast but ckt didnot trip
3) Relay Annunciation: -
4) Details of physically damaged equipment: 33kV Balaji Yph CT blast
5) Immediate corrective/system normalization steps performed: Load Shifted by Discom by 18:04 as Grid staff was busy dousing fire. 33kV B/C put on at 18:15 Hrs.
6) Any other relevant information: 64MW load effected which was normalized by BRPL by 18:04 Hrs. I/C 3 closed at 19:00 Hrs.
Regards, Delhi SLDC |
20220411142706 | 2022-04-11 14:27:07 | 1) Name of the substation and Time: 220kV DIAL
2) Name of element tripped/restored: 220kV Bamnauli ckt 1
3) Relay Annunciation: At 220kV DIAL, 220kV Bamnauli 1 tripped on Rph, z-2, 86, Ir=1.1kA, At Bamnauli end: Z-2, Rph, 135.7km, 186AB, Ir=64.8A.
4) Details of physically damaged equipment: Fault led to tripping of 220kV Bamnauli 1 and 2 At Najafgarh
5) Immediate corrective/system normalization steps performed: ckt tried from Bamnauli at 14:08 Held ok
6) Any other relevant information: no load effected at DIAL.
Regards, Delhi SLDC |
20220411142247 | 2022-04-11 14:22:48 | 1) Name of the substation and Time: 13:37, 220kV Najafgarh
2) Name of element tripped/restored: 220kV Bamnauli 1 and 2, Lines remained charged at Bamnauli end.
3) Relay Annunciation: Tripped by BCU on Voltage fluctuation.
4) Details of physically damaged equipment: -
5) Immediate corrective/system normalization steps performed: Both ckts closed at 13:40 Hrs
6) Any other relevant information: effecting 160MW load at Najafgarh.
Regards, Delhi SLDC |
20220411134102 | 2022-04-11 13:41:03 | 1) Name of the substation and Time: 220kV Narela
2) Name of element tripped/restored: 220kV Mandola ckt 1
3) Relay Annunciation: At Narela end: R ph distance trip. Main 86A relay burnt .
At Mandola end: R-E fault, Ir=7.1kA, dist 15.6km
4) Details of physically damaged equipment: Main 86A relay burnt
5) Immediate corrective/system normalization steps performed: -
6) Any other relevant information: no load effected
Regards, Delhi SLDC |
20220410223049 | 2022-04-10 22:30:50 | 1) Name of the substation and Time: Mehrauli
2) Name of element tripped/restored: At 20:48Hrs 100MVA T/F-1 tripped on O/C R and B-phase, 66KV I/C-2 and 66KV I/C-3 tripped without indication.
Load affected was approx. 140MW.
At 21:08Hrs 66KV I/C-2 and 66KV I/C-3 charged and load normalised.
At 21:38Hrs 160MVA T/F-4 tripped on O/C Y-phase.
At 22:00Hrs 160MVA T/F-4 charged
At 22:04Hrs 100MVA T/F-1 charged.
3) Relay Annunciation: na
4) Details of physically damaged equipment: na
5) Immediate corrective/system normalization steps performed: na
6) Any other relevant information: na
Regards, Delhi SLDC |
20220410174306 | 2022-04-10 17:43:07 | 1) Name of the substation and Time: Kanjhawala
2) Name of element tripped/restored: 220KV Bawana ckt I and II charged at 17:38Hrs.
3) Relay Annunciation: na
4) Details of physically damaged equipment: na
5) Immediate corrective/system normalization steps performed: na
6) Any other relevant information: na
Regards, Delhi SLDC |
20220410173923 | 2022-04-10 17:39:23 | 1) Name of the substation and Time: Tughlakabad
2) Name of element tripped/restored: 220KV Mehrauli ckt-II charged at 17:26Hrs.
3) Relay Annunciation: na
4) Details of physically damaged equipment: na
5) Immediate corrective/system normalization steps performed: na
6) Any other relevant information: na
Regards, Delhi SLDC |
20220410173659 | 2022-04-10 17:37:00 | 1) Name of the substation and Time: Tughlakabad
2) Name of element tripped/restored: 220KV Mehrauli ckt-II charged at 17:26Hrs.
3) Relay Annunciation: na
4) Details of physically damaged equipment: na
5) Immediate corrective/system normalization steps performed: na
6) Any other relevant information: na
Regards, Delhi SLDC |
20220410153545 | 2022-04-10 15:35:46 | 1) Name of the substation and Time: 14:47HRS and 14:48 HRS 400KV BAWANA
2) Name of element tripped/restored: 220KV KNJ CKTI and II tripped
3) Relay Annunciation: (KNJ-I-Relay R-Phase trip zone-I Distance trip zone-II R and B phase
F/L 2.627km)
(knj-II-Relay-Y and B phase trip zone-I f
F/L-1.435 KM)
4) Details of physically damaged equipment: -
5) Immediate corrective/system normalization steps performed: AT 14:55 HRS 220KV Buscoupler closed at KNJ and load taken on 220KV Mundka ckt
load normalised...
6) Any other relevant information: -
Regards, Delhi SLDC |
20220410152740 | 2022-04-10 15:27:41 | 1) Name of the substation and Time: 13:24HRS,220KV TUGB
2) Name of element tripped/restored: 220KV Mehrauli ckt-II
3) Relay Annunciation: Rphase trip,zone-II,F/L 8.8KM,If 13.9KA
4) Details of physically damaged equipment: -
5) Immediate corrective/system normalization steps performed: 13:28HRS,220KV Buscoupler closed at 220KV Vasant KUNG station.220KV RKP ckt-II supply given and load taken
6) Any other relevant information: Mehrauli 160MVA transfred to TUGB-CKT-I.System normalised
Regards, Delhi SLDC |
20220409170243 | 2022-04-09 17:02:44 | 1) Name of the substation and Time: PPK-2
2) Name of element tripped/restored: 220KV Bamnauli ckt-I charged at 16:56Hrs.
3) Relay Annunciation: na
4) Details of physically damaged equipment: na
5) Immediate corrective/system normalization steps performed: na
6) Any other relevant information: na
Regards, Delhi SLDC |
20220409135225 | 2022-04-09 13:52:26 | 1) Name of the substation and Time: PPK-2
2) Name of element tripped/restored: 220KV Bamnauli ckt-I tripped on YB-phase Z-1 differential at 13:22Hrs.
Relay at Bamnauli end are YB-phase Z-1 5.09km fault current 12KA.
Load affected was 100MW.
3) Relay Annunciation: na
4) Details of physically damaged equipment: na
5) Immediate corrective/system normalization steps performed: Load normalised through 220KV B/C at 13:25Hrs.
6) Any other relevant information: na
Regards, Delhi SLDC |
20220408230256 | 2022-04-08 23:02:57 | SCADA Data for the Following Sub-Stations/lines/elements are suspect or not available:
1) Data of 220 Kv Peeragarhi and 220 KV Wazirpur is not updating.
2) na
3) na
4) na
5) na
6) na
Regards, Delhi SLDC |
20220408184028 | 2022-04-08 18:40:29 | 1) Name of the substation and Time: at 220 KV Narela
2) Name of element tripped/restored: 220 KV Narela madola ckt-II charged at 17:56 hrs and ckt-I charged at 18:34 hrs
3) Relay Annunciation: na
4) Details of physically damaged equipment: na
5) Immediate corrective/system normalization steps performed: na
6) Any other relevant information: na
Regards, Delhi SLDC |
20220408145843 | 2022-04-08 14:58:44 | 1) Name of the substation and Time: Sarita Vihar
2) Name of element tripped/restored: 220KV BTPS ckt-I charged at 10:58Hrs.
3) Relay Annunciation: na
4) Details of physically damaged equipment: na
5) Immediate corrective/system normalization steps performed: na
6) Any other relevant information: na
Regards, Delhi SLDC |
20220408140823 | 2022-04-08 14:08:23 | 1) Name of the substation and Time: Narela
2) Name of element tripped/restored: At 13:20Hrs 220KV Mandaula ckt-II tripped on C-phase 21.16km.
At 13:40Hrs supply of 220KV Mandaula ckt-I failed.
Load affected was 86MW.
3) Relay Annunciation: na
4) Details of physically damaged equipment: na
5) Immediate corrective/system normalization steps performed: Load normalised through 220KV Narela-DSIDC ckt-I and II at 13:47Hrs.
6) Any other relevant information: na
Regards, Delhi SLDC |
20220408065404 | 2022-04-08 06:54:05 | 1) Name of the substation and Time: At 05:38 HRS ,220KV Saritavihar
2) Name of element tripped/restored: 220KV BTPS ckt-I only at SVR end.
3) Relay Annunciation: Zone-I,trip phase Bn.F/L 120KM, Y and B phasse trip
4) Details of physically damaged equipment: -
5) Immediate corrective/system normalization steps performed: 06:47 HRS tried to close at SVR end but didnot hold.
6) Any other relevant information: -
Regards, Delhi SLDC |
20220407165516 | 2022-04-07 16:55:17 | 1) Name of the substation and Time: 220 KV NZF
2) Name of element tripped/restored: 220 NZF-BMLY ckt-I charged at 16:52 hrs
3) Relay Annunciation: na
4) Details of physically damaged equipment: na
5) Immediate corrective/system normalization steps performed: na
6) Any other relevant information: na
Regards, Delhi SLDC |
20220407164709 | 2022-04-07 16:47:10 | 1) Name of the substation and Time: 220 KV Narela
2) Name of element tripped/restored: 220 KV Narela-MDL ckt-II charged at 16:26 hrs
3) Relay Annunciation: na
4) Details of physically damaged equipment: na
5) Immediate corrective/system normalization steps performed: na
6) Any other relevant information: na
Regards, Delhi SLDC |
20220407155951 | 2022-04-07 15:59:52 | 1) Name of the substation and Time: At 220 KV NZF
2) Name of element tripped/restored: 220 KV BMLY-NZF Ckt-II charged at 15:17 hrs
3) Relay Annunciation: na
4) Details of physically damaged equipment: na
5) Immediate corrective/system normalization steps performed: na
6) Any other relevant information: na
Regards, Delhi SLDC |
20220407145431 | 2022-04-07 14:54:32 | 1) Name of the substation and Time: 220KV NZF at 14:17 hrs
2) Name of element tripped/restored: 220 kv BMLY-NZF CKT- II TRIPPED ON DISTANCE PROT.ZONE-I 2.64 KM B PHASE FROM BMLY END.CKT CB REMAIN CLOSED FROM NZF. 220 KV BMLY-NZF CKT-I TRIPPED FROM NZF ON 86.CKT RAMAIN CHARGED FROM BAMLY END.
3) Relay Annunciation: DISTANCE
4) Details of physically damaged equipment: NONE REPORTED
5) Immediate corrective/system normalization steps performed: AT 14:30 HRS LOAD SHIFTED ON MUNDKA AND KANJHAWALA CKT.
6) Any other relevant information: PARTIALLY LOAD SHIFTED BY BSES.46 MW LOAD REMAIN AFFECTED FROM 14:17 HRS TO 14:30 HRS
Regards, Delhi SLDC |
20220407134055 | 2022-04-07 13:40:56 | 1) Name of the substation and Time: 220 KV Narela at 13:11 hrs
2) Name of element tripped/restored: 220 KV Mandola ckt-II tripped on distance prot. zone-I 7.70 km zone-I
3) Relay Annunciation: distance
4) Details of physically damaged equipment: none reported
5) Immediate corrective/system normalization steps performed: na
6) Any other relevant information: No load affected.
Regards, Delhi SLDC |
20220406161305 | 2022-04-06 16:13:06 | 1) Name of the substation and Time: At 220 KV Narela at 15:19 hrs.
2) Name of element tripped/restored: 220 KV Mandola ckt-II charged at 15:15 hrs.but ckt again tripped on distance prot. B phase,6.2 km.
3) Relay Annunciation: distance prot
4) Details of physically damaged equipment: None reported
5) Immediate corrective/system normalization steps performed: na
6) Any other relevant information: No load affected
Regards, Delhi SLDC |
20220405140658 | 2022-04-05 14:06:59 | 1) Name of the substation and Time: At 13:23 hrs.
220 KV Narela
2) Name of element tripped/restored: 220KV Mandola ckt-2
3) Relay Annunciation: Dist. Prot,Zone-1 Dist 4.5 KM
4) Details of physically damaged equipment: None
5) Immediate corrective/system normalization steps performed: NO load affected
6) Any other relevant information: CVT: NA
Regards, Delhi SLDC |
20220405135851 | 2022-04-05 13:58:51 | 1) Name of the substation and Time: 220 kv narela, @ 13:23 hrs
2) Name of element tripped/restored: 220 kv mandola ckt2
3) Relay Annunciation: Zone 1, 4.5 km, I(C) = 4 kA
4) Details of physically damaged equipment: none reported
5) Immediate corrective/system normalization steps performed: no load affected
6) Any other relevant information: CVT : NA
Regards, Delhi SLDC |
20220404163047 | 2022-04-04 16:30:48 | 1) Name of the substation and Time: At 15:00 hrs. 220KV Meharauli
2) Name of element tripped/restored: 66 KV I/Cs 1,2 and 3
3) Relay Annunciation: o/c b-phase
4) Details of physically damaged equipment: none
5) Immediate corrective/system normalization steps performed: after fault analysis all kV 66 I/Cs made normal
6) Any other relevant information: 82 MW load affected for 10 Min.
Regards, Delhi SLDC |
20220404162202 | 2022-04-04 16:22:03 | 1) Name of the substation and Time: At 14:50 hrs. 220KV Meharauli
2) Name of element tripped/restored: 66 kv I/C-1,2 AND 3
3) Relay Annunciation: O/C B-PHASE
4) Details of physically damaged equipment: None
5) Immediate corrective/system normalization steps performed: AT 15:00 hrs all I/Cs made on after fault analysis
6) Any other relevant information: none
Regards, Delhi SLDC |
20220402175155 | 2022-04-02 17:51:56 | 1) Name of the substation and Time: Bamnauli`
2) Name of element tripped/restored: 400KV Tughlakabad ckt-II charged at 17:48Hrs.
3) Relay Annunciation: na
4) Details of physically damaged equipment: na
5) Immediate corrective/system normalization steps performed: na
6) Any other relevant information: na
Regards, Delhi SLDC |
20220402150621 | 2022-04-02 15:06:23 | 1) Name of the substation and Time: 400kV Harsh Vihar at 14:27
2) Name of element tripped/restored: 400kV Dadri ckt 2
3) Relay Annunciation: z-1, 41.3km, Y ph. E/F
4) Details of physically damaged equipment: -
5) Immediate corrective/system normalization steps performed: -
6) Any other relevant information: Line being Patrolled by NTPC
Regards, Delhi SLDC |
20220401152539 | 2022-04-01 15:25:40 | 1) Name of the substation and Time: Bamnauli
14:12Hrs.
2) Name of element tripped/restored: 500MVA ICT-3 charged.
3) Relay Annunciation: na
4) Details of physically damaged equipment: na
5) Immediate corrective/system normalization steps performed: na
6) Any other relevant information: na
Regards, Delhi SLDC |
20220401152247 | 2022-04-01 15:22:48 | 1) Name of the substation and Time: 220KV IP 12:37Hrs
2) Name of element tripped/restored: corrigendum
At 12:37Hrs 220KV Patparganj ckt I and II tripped on distance relay Z-4 RYB-phase further due to this there was loss of generation at Pragati and Pragati-Pragati Street ckt-II tripped on distance relay line differential Z-1 B-phase.
Grid staff of IP grid has reported thread on 220KV Bus I and II.
Total load affected during this was approx 280MW of IP, Rajghat and Partstreet(only 66KV load)
At 12:45Hrs 220KV B/C at Pragati closed and load of Park Street normalised.
At 12:55Hrs 220KV Patparganj-IP ckt-I charged but tripped on DPR Z-4 RYB-phase.
At 13:18Hrs 220KV Patparganj-IP ckt-II charged and load of IP normalised.
At 13:37Hrs 220KV IP-Rajghat ckt I and II charged and load of Rajghat normalised.
At 13:42Hrs 220KV Patparganj-IP ckt-I charged.
3) Relay Annunciation: na
4) Details of physically damaged equipment: na
5) Immediate corrective/system normalization steps performed: na
6) Any other relevant information: na
Regards, Delhi SLDC |
20220401151127 | 2022-04-01 15:11:27 | 1) Name of the substation and Time: 220KV IP
2) Name of element tripped/restored: At 12:37Hrs 220KV Patparganj ckt I and II tripped on distance relay Z-4 RYB-phase further due to this there was loss of generation at Pragati and Pragati-Pragati Street ckt-II tripped on distance relay line differential Z-1 B-phase.
Grid staff of IP grid has reported thread on 220KV Bus I and II.
Total load affected during this was approx 280MW (IP, Rajghat, Partstreet and GT)
At 12:45Hrs 220KV B/C at Pragati closed and load of GT and Park Street normalised.
At 12:55Hrs 220KV Patparganj-IP ckt-I charged but tripped on DPR Z-4 RYB-phase.
At 13:18Hrs 220KV Patparganj-IP ckt-II charged and load of IP normalised.
At 13:37Hrs 220KV IP-Rajghat ckt I and II charged and load of Rajghat normalised.
At 13:42Hrs 220KV Patparganj-IP ckt-I charged.
3) Relay Annunciation: na
4) Details of physically damaged equipment: na
5) Immediate corrective/system normalization steps performed: na
6) Any other relevant information: na
Regards, Delhi SLDC |
20220401080809 | 2022-04-01 08:08:10 | 1) Name of the substation and Time: 400kV Bamnauli 18:41Hrs 31.03.2022, Radiator leakage Radiator leakage reported at 07.58 Hrs on 01.04.2022
2) Name of element tripped/restored: 500MVA ICT-III
3) Relay Annunciation: Tripped on O/C 86 A and B
4) Details of physically damaged equipment: Radiator leakage
5) Immediate corrective/system normalization steps performed: PTW issued
6) Any other relevant information: NIL
Regards, Delhi SLDC |
20220331230836 | 2022-03-31 23:08:37 | 1) Name of the substation and Time: 400 KV Bamnauli at 22:53 hrs.
2) Name of element tripped/restored: 400 KV Bus-II charged.
3) Relay Annunciation: na
4) Details of physically damaged equipment: na
5) Immediate corrective/system normalization steps performed: na
6) Any other relevant information: na
Regards, Delhi SLDC |
20220331202822 | 2022-03-31 20:28:23 | 1) Name of the substation and Time: 220 KV NJF
2) Name of element tripped/restored: 220 KV Bamnauli ckt-I charged at 19:30 hrs.
3) Relay Annunciation: na
4) Details of physically damaged equipment: na
5) Immediate corrective/system normalization steps performed: na
6) Any other relevant information: na
Regards, Delhi SLDC |
20220331195600 | 2022-03-31 19:56:01 | 1) Name of the substation and Time: 400 Kv Bamnauli at 18:41 hrs
2) Name of element tripped/restored: 400 KV Tugalkabad ckt-II tripped on distance prot. zone -I 228 mtr.and 500 MVA ICT-III tripped on o/c.bus bar opearted on 400 kv BUS-II.
3) Relay Annunciation: bus bar operated
4) Details of physically damaged equipment: R phase CT fired of BUS-II of Tugalkabad ckt-II and ICT-III
5) Immediate corrective/system normalization steps performed: na
6) Any other relevant information: No load affected.
Regards, Delhi SLDC |
20220331185810 | 2022-03-31 18:58:12 | 1) Name of the substation and Time: Najafgarh at 18:44Hrs
2) Name of element tripped/restored: 220kV Najafgarh- BML ckt1, Load transferred to 220kV Mundka at 18:45 HRs, Load affected 62 MW for 1 Min
3) Relay Annunciation: 86, E/f
4) Details of physically damaged equipment: NIL
5) Immediate corrective/system normalization steps performed: Substation staff informed to Check the ckt
6) Any other relevant information: Nil
Regards, Delhi SLDC |
20220330120439 | 2022-03-30 12:04:40 | 1) Name of the substation and Time: 220kV Geeta Colony 11:39HRs
2) Name of element tripped/restored: Geeta colony Wazirabad Ckt 2
3) Relay Annunciation: Distance prot Zone-1, B-Phase, 86, SOTF
4) Details of physically damaged equipment: Conductor Snap reported
5) Immediate corrective/system normalization steps performed: Substation staff informed for needful
6) Any other relevant information: NIL
Regards, Delhi SLDC |
20220330105518 | 2022-03-30 10:55:19 | 1) Name of the substation and Time: 220 KLV OKHLA
2) Name of element tripped/restored: 33KV INCOMMER MADE OFF MANNUALLY BY GRID STAFF, I/C 3 ALREADY UNDER BREAKDOWN
3) Relay Annunciation: NA
4) Details of physically damaged equipment: ISOLATOR MELT
5) Immediate corrective/system normalization steps performed: NA
6) Any other relevant information: NA
Regards, Delhi SLDC |
20220329163233 | 2022-03-29 16:32:35 | 1) Name of the substation and Time: 220kV TKD- Okhla ckt2 at 15:52HRs
2) Name of element tripped/restored: 220kV TKD- Okhla ckt2
3) Relay Annunciation: Nil
4) Details of physically damaged equipment: Nil
5) Immediate corrective/system normalization steps performed: Nil
6) Any other relevant information: Nil
Regards, Delhi SLDC |
20220329162904 | 2022-03-29 16:29:05 | 1) Name of the substation and Time: 220kV Narela 16:08HRs
2) Name of element tripped/restored: 220kV Narela- MAndaula ckt 1 and 2 tripped at 186A and B, Load normalise through bus 220kV coupler at 16:16HRs, 25MW Load affected for 8Min
3) Relay Annunciation: 186 A and B
4) Details of physically damaged equipment: NIL
5) Immediate corrective/system normalization steps performed: Informed to S/stn staff to check the line
6) Any other relevant information: Nil
Regards, Delhi SLDC |
20220329144545 | 2022-03-29 14:45:47 | 1) Name of the substation and Time: Corrigendum : 220kV Tukalkabad 14:03HRs
2) Name of element tripped/restored: 220kV TKD-Mehrauli ckt-1 tripped, 60 MW load affected for 16 Min at 220kV Vasant Kunj. Load restored at 220kV Vasant kunj end through bus coupler
3) Relay Annunciation: 220kV TKD end: Zone-III, Zone-II, R-Ph, 11.1KM
4) Details of physically damaged equipment: Nil
5) Immediate corrective/system normalization steps performed: Informed to concerned S/stn staff to check the ckt
6) Any other relevant information: Nil
Regards, Delhi SLDC |
20220329143721 | 2022-03-29 14:37:22 | 1) Name of the substation and Time: 220kV Tukalkabad 14:03HRs
2) Name of element tripped/restored: 220kV TKD-Mehrauli ckt-1 tripped, 7 MW load affected for 16 Min at 220kV Vasant Kunj. Load restored at 220kV Vasant kunj end through bus coupler
3) Relay Annunciation: 220kV TKD end: Zone-III, Zone-II, R-Ph, 11.1KM
4) Details of physically damaged equipment: Nil
5) Immediate corrective/system normalization steps performed: Informed to concerned S/stn staff to check the ckt
6) Any other relevant information: NIl
Regards, Delhi SLDC |
20220329135817 | 2022-03-29 13:58:18 | 1) Name of the substation and Time: 220kV Okhla 13:10PM
2) Name of element tripped/restored: 220kV Okhla-TKD ckt2
3) Relay Annunciation: Distance Protection, Zone-1, Zone-2, ZOne-3, 86T, Fault currect 18.751KA, Distance 2.06KM
4) Details of physically damaged equipment: NIL
5) Immediate corrective/system normalization steps performed: S/stn staff informed to check the ckt
6) Any other relevant information: NIL
Regards, Delhi SLDC |
20220329135502 | 2022-03-29 13:55:03 | 1) Name of the substation and Time: 400KV BAWANA, 13:25PM
2) Name of element tripped/restored: 400kV Bawana- Maharanibagh ckt-1 charged (LILO of 400kV Bawana- Mandaula ckt-1)
3) Relay Annunciation: NIL
4) Details of physically damaged equipment: NIL
5) Immediate corrective/system normalization steps performed: NIL
6) Any other relevant information: NIL
Regards, Delhi SLDC |
20220329123325 | 2022-03-29 12:33:26 | 1) Name of the substation and Time: 400KV BAWANA, 11:51AM
2) Name of element tripped/restored: 400 kv Bawana-Maharanibagh ckt-2 (LILO of 400KV Bawana-mandola ckt-2) charged
3) Relay Annunciation: NA
4) Details of physically damaged equipment: NA
5) Immediate corrective/system normalization steps performed: NA
6) Any other relevant information: NA
Regards, Delhi SLDC |
20220328195957 | 2022-03-28 19:59:59 | 1) Name of the substation and Time: Patparganj
2) Name of element tripped/restored: 220KV Geeta colony ckt-II charged at 18:52hrs.
3) Relay Annunciation: na
4) Details of physically damaged equipment: na
5) Immediate corrective/system normalization steps performed: na
6) Any other relevant information: na
Regards, Delhi SLDC |
20220328181912 | 2022-03-28 18:19:14 | 1) Name of the substation and Time: Patparganj
18:05Hrs
2) Name of element tripped/restored: 220KV Geeta colony ckt-II
3) Relay Annunciation: Relay at Patparganj end are distance relay Z-1 R-phase 0.7km.
Relay at Geeta colony end are o/c earth fault Z-1 3.4km R-phase.
No load was affected
4) Details of physically damaged equipment: na
5) Immediate corrective/system normalization steps performed: na
6) Any other relevant information: na
Regards, Delhi SLDC |
20220328174634 | 2022-03-28 17:46:35 | 1) Name of the substation and Time: AT 15:27hrs, Pappankalan-II
2) Name of element tripped/restored: 220KV Bamnoli-II
3) Relay Annunciation: RYB phase ,Z-I
4) Details of physically damaged equipment: NA
5) Immediate corrective/system normalization steps performed: Restoration.
6) Any other relevant information: CKT normalized.
Regards, Delhi SLDC |
20220328174625 | 2022-03-28 17:46:27 | 1) Name of the substation and Time: At 13:45hrs, Pappankalan-II
2) Name of element tripped/restored: 220KV Bamnoli-II
3) Relay Annunciation: RYB phase , 86T, -173.5KM
4) Details of physically damaged equipment: NA
5) Immediate corrective/system normalization steps performed: BRPL asked to immediately C/O load on other 220KV substations.
6) Any other relevant information: AT 14:09hrs, Bamnoli-PPK-II ckt-II was made available and supply of 220KV PPK-II restored.
Regards, Delhi SLDC |
20220328173749 | 2022-03-28 17:37:50 | 1) Name of the substation and Time: At 12:55 hrs.220kv PPK-2
2) Name of element tripped/restored: 220 KV BAMNAULI-1 tripped
3) Relay Annunciation: dist.prot zone-1 B- PHASE
4) Details of physically damaged equipment: NA
5) Immediate corrective/system normalization steps performed: 220 KV B/C Put on
6) Any other relevant information: load normalized at 12:59 hrs.
Regards, Delhi SLDC |
20220328171737 | 2022-03-28 17:17:40 | 1) Name of the substation and Time: At 1550 hrs. 220 kv okhala
2) Name of element tripped/restored: 33 KV I/C-3
3) Relay Annunciation: R-Y-B PHASE TRIP,86
4) Details of physically damaged equipment: NA
5) Immediate corrective/system normalization steps performed: BRPL asked to changeover their load
6) Any other relevant information: 33 kv nehru place-4 tripped simultaneously
Regards, Delhi SLDC |
20220328170930 | 2022-03-28 17:09:34 | 1) Name of the substation and Time: At 15:50 hrs.220 kv okhala
2) Name of element tripped/restored: 33 kv I/C-5
3) Relay Annunciation: E/F
4) Details of physically damaged equipment: NA
5) Immediate corrective/system normalization steps performed: BRPL asked to change over their load
6) Any other relevant information: 33 kv nehru place-4 also tripped simultaneously and CB blast reported at BRPL end
Regards, Delhi SLDC |
20220318195048 | 2022-03-18 19:50:50 | 1) Name of the substation and Time: 400kv Bamnauli
2) Name of element tripped/restored: 220kv DIAL-1 and DIAL-2.
3) Relay Annunciation: earth fault,R-PH ,186,fault current 3.374 KA.
4) Details of physically damaged equipment: n/a
5) Immediate corrective/system normalization steps performed: adviced to discom for shifting load.
6) Any other relevant information: Also tripped 220 kv Tuglakabad -mehrauli-2,jone-2 operated ,R-phase ,9.80 km,fault current 14.4 KA.
Regards, Delhi SLDC |
20220315164227 | 2022-03-15 16:42:28 | 1) Name of the substation and Time: Okhla
2) Name of element tripped/restored: 220KV BTPS ckt-I charged at 16:33Hrs and 160MVA T/F-1 charged at 16:38Hrs.
3) Relay Annunciation: na
4) Details of physically damaged equipment: na
5) Immediate corrective/system normalization steps performed: na
6) Any other relevant information: na
Regards, Delhi SLDC |
20220315164011 | 2022-03-15 16:40:12 | 1) Name of the substation and Time: Dial
2) Name of element tripped/restored: 220KV Bamnauli ckt-I charged at 16:23Hrs.
3) Relay Annunciation: na
4) Details of physically damaged equipment: na
5) Immediate corrective/system normalization steps performed: na
6) Any other relevant information: na
Regards, Delhi SLDC |
20220315163320 | 2022-03-15 16:33:21 | 1) Name of the substation and Time: Dial
2) Name of element tripped/restored: 220KV Bamnauli ckt-I charged at 16:23Hrs.
3) Relay Annunciation: na
4) Details of physically damaged equipment: na
5) Immediate corrective/system normalization steps performed: na
6) Any other relevant information: na
Regards, Delhi SLDC |
20220315130610 | 2022-03-15 13:06:11 | 1) Name of the substation and Time: Dial
12:09Hrs.
2) Name of element tripped/restored: 220KV Bamnauli ckt-I
3) Relay Annunciation: Relay at Dial end R-phase Z-2
Relay at Bamnauli end Z-1 R-phase 1.9km.
No load was affected
4) Details of physically damaged equipment: NA
5) Immediate corrective/system normalization steps performed: NA
6) Any other relevant information: NA
Regards, Delhi SLDC |
20220315130040 | 2022-03-15 13:00:41 | 1) Name of the substation and Time: Okhla
11:50Hrs.
2) Name of element tripped/restored: BTPS ckt-I and 160MVA T/F-1
3) Relay Annunciation: 220KV BTPS ckt-I tripped on distance relay Y-phase Z-1.
160MVA T/F-1 tripped on 86.
220KV BTPS ckt-II was under shutdown.
Load affected was 53MW.
4) Details of physically damaged equipment: NA
5) Immediate corrective/system normalization steps performed: Load normalised through 220KV B/C at 11:55Hrs.
6) Any other relevant information: NA
Regards, Delhi SLDC |
20220315130033 | 2022-03-15 13:00:34 | 1) Name of the substation and Time: Okhla
11:50Hrs.
2) Name of element tripped/restored: BTPS ckt-I and 160MVA T/F-1
3) Relay Annunciation: 220KV BTPS ckt-I tripped on distance relay Y-phase Z-1.
160MVA T/F-1 tripped on 86.
220KV BTPS ckt-II was under shutdown.
Load affected was 53MW.
4) Details of physically damaged equipment: NA
5) Immediate corrective/system normalization steps performed: Loa |