An ISO 9001:2015 Organization
State Load Despatch Center, Delhi
Meetings Home ContactUs Feedback
Skip Navigation Links
    SMS Report

   

Message IDTime stampMessage
202303281702302023/03/28 17:02:301) 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
202303281529012023/03/28 15:29:011) 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
202303281421232023/03/28 14:21:241) 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
202303281331262023/03/28 13:31:281) 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
202303272000172023/03/27 20:00:181) 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
202303241502472023/03/24 15:02:481) 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
202303241402312023/03/24 14:02:321) 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
202303241229592023/03/24 12:29:591) 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
202303231653052023/03/23 16:53:061) 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
202303231545462023/03/23 15:45:471) 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
202303231430012023/03/23 14:30:011) 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
202303220619562023/03/22 06:19:571) 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
202303211422412023/03/21 14:22:421) 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
202303211052412023/03/21 10:52:421) 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
202303210058202023/03/21 00:58:201) 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
202303210019402023/03/21 00:19:411) 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
202303202008122023/03/20 20:08:141) 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
202303202004502023/03/20 20:04:511) 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
202303202000112023/03/20 20:00:121) 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
202303201816232023/03/20 18:16:241) 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
202303190536492023/03/19 05:36:501) 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
202303190532482023/03/19 05:32:491) 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
202303162056462023/03/16 20:56:471) 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
202303151721302023/03/15 17:21:321) 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
202303151718172023/03/15 17:18:181) 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
202303151506182023/03/15 15:06:191) 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
202303151301212023/03/15 13:01:221) 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
202303111737072023/03/11 17:37:071) 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
202303111605052023/03/11 16:05:061) 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
202303101817052023/03/10 18:17:061) 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
202303101338262023/03/10 13:38:271) 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
202303081516312023/03/08 15:16:321) 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
202303051903462023/03/05 19:03:471) 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
202303051859462023/03/05 18:59:47SCADA 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
202303050935592023/03/05 09:35:591) 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
202303042317142023/03/04 23:17:151) 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
202303031408342023/03/03 14:08:341) 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
202303031223252023/03/03 12:23:261) 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
202303020847092023/03/02 08:47:101) 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
202303020832102023/03/02 08:32:111) 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
202303020619512023/03/02 06:19:521) 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
202303020606102023/03/02 06:06:111) 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
202303020258342023/03/02 02:58:351) 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
202302271540142023/02/27 15:40:141) 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
202302271535332023/02/27 15:35:341) 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
202302232137572023/02/23 21:38:141) 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
202302231636212023/02/23 16:43:541) 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
202302231634002023/02/23 16:34:011) 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
202302231441082023/02/23 14:41:091) 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
202302221124312023/02/22 11:24:321) 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
202302211929532023/02/21 19:29:551) 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
202302211517232023/02/21 15:17:231) 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
202302211513002023/02/21 15:13:011) 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
202302202009392023/02/20 20:09:401) 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
202302201502352023/02/20 15:02:361) 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
202302201500222023/02/20 15:00:231) 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
202302201416402023/02/20 14:16:411) 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
202302201249232023/02/20 12:49:241) 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
202302191850412023/02/19 18:50:421) 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
202302190820352023/02/19 08:20:361) 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
202302190745312023/02/19 07:45:321) 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
202302170634102023/02/17 06:34:111) 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
202302170522312023/02/17 05:22:321) 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
202302141659302023/02/14 16:59:301) 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
202302140939202023/02/14 09:39:211) 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
202302140840132023/02/14 08:40:141) 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
202302131952452023/02/13 19:52:461) 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
202302131702302023/02/13 17:02:301) 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
202302131649302023/02/13 16:49:311) 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
202302131649012023/02/13 16:49:021) 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
202302131630112023/02/13 16:30:121) 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
202302131615182023/02/13 16:15:181) 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
202302120135502023/02/12 01:35:511) 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
202302111832502023/02/11 18:32:501) 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
202302091451012023/02/09 14:51:011) 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
202302081725582023/02/08 17:25:581) 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
202302040845042023/02/04 08:45:051) 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
202302030639572023/02/03 06:39:581) 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
202302021950202023/02/02 19:50:211) 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
202301302123392023/01/30 21:23:401) 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
202301302116332023/01/30 21:16:331) 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
202301301704332023/01/30 17:04:341) 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
202301300851332023/01/30 08:51:341) 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
202301292336252023/01/29 23:36:251) 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
202301291737532023/01/29 17:37:541) 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
202301291707252023/01/29 17:07:261) 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
202301291634112023/01/29 16:34:121) 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
202301241455182023/01/24 14:55:191) 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
202301232147022023/01/23 21:47:021) 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
202301231959202023/01/23 19:59:201) 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
202301201128432023/01/20 11:28:441) 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
202301191722302023/01/19 17:22:301) 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
202301191721032023/01/19 17:21:041) 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
202301191617552023/01/19 16:17:561) 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
202301191442322023/01/19 14:42:321) 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
202301191130542023/01/19 11:30:551) 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
202301182043482023/01/18 20:43:491) 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
202301160933222023/01/16 09:33:231) 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
202301160931412023/01/16 09:31:421) 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
202301141532002023/01/14 15:32:011) 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
202301141134232023/01/14 11:34:241) 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
202301131629282023/01/13 16:29:291) 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
202301131437192023/01/13 14:37:201) 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
202301121905542023/01/12 19:05:551) 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
202301121815352023/01/12 18:15:361) 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
202301121210282023/01/12 12:10:281) 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
202301120811552023/01/12 08:11:561) 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
202301090424522023/01/09 04:24:531) 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
202301082126242023/01/08 21:26:241) 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
202301080826032023/01/08 08:26:041) 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
202301071713512023/01/07 17:13:521) 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
202301070835532023/01/07 08:35:531) 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
202301051218022023/01/05 12:18:031) 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
202301050944322023/01/05 09:44:331) 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
202301042328472023/01/04 23:28:481) 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
202301041542502023/01/04 15:42:511) 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
202301041539232023/01/04 15:39:241) 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
202301030549542023/01/03 05:49:551) 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
202301022339452023/01/02 23:39:461) 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
202301022217482023/01/02 22:17:491) 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
202301020624342023/01/02 06:24:351) 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
202301020430042023/01/02 04:30:041) 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
202301020143202023/01/02 01:43:211) 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
202212301302002022/12/30 13:02:011) 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
202212301135102022/12/30 11:35:101) 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
202212291244552022/12/29 12:44:561) 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
202212280917132022/12/28 09:17:141) 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
202212280302052022/12/28 03:02:051) 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
202212280249092022/12/28 02:49:101) 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
202212280224352022/12/28 02:24:361) 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
202212271249242022/12/27 12:49:251) 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
202212271240522022/12/27 12:40:521) 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
202212261633022022/12/26 16:33:031) 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
202212260930202022/12/26 09:30:211) 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
202212260923062022/12/26 09:23:071) 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
202212251552302022/12/25 15:52:311) 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
202212240704562022/12/24 07:04:571) 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
202212240702312022/12/24 07:02:321) 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
202212240656402022/12/24 06:56:411) 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
202212230452012022/12/23 04:52:021) 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
202212230445032022/12/23 04:45:031) 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
202212221217592022/12/22 12:17:591) 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
202212211646192022/12/21 16:46:201) 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
202212210557492022/12/21 05:57:491) 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
202212210540332022/12/21 05:40:331) 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
202212210539342022/12/21 05:39:351) 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
202212210346282022/12/21 03:46:291) 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
202212210342372022/12/21 03:42:381) 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
202212210259312022/12/21 02:59:321) 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
202212210237422022/12/21 02:37:421) 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
202212210228402022/12/21 02:28:411) 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
202212210226122022/12/21 02:26:131) 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
202212210200502022/12/21 02:00:511) 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
202212210130312022/12/21 01:30:321) 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
202212210119022022/12/21 01:19:031) 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
202212201705332022/12/20 17:05:341) 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
202212200925122022/12/20 09:25:131) 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
202212200917122022/12/20 09:17:131) 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
202212200912322022/12/20 09:12:331) 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
202212200908442022/12/20 09:08:451) 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
202212200905132022/12/20 09:05:131) 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
202212200852372022/12/20 08:52:381) 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
202212200834362022/12/20 08:34:371) 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
202212200813582022/12/20 08:13:591) 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
202212200630492022/12/20 06:30:501) 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
202212200431112022/12/20 04:31:111) 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
202212200356252022/12/20 03:56:261) 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
202212200351512022/12/20 03:51:511) 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
202212200346252022/12/20 03:46:261) 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
202212200341202022/12/20 03:41:201) 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
202212200121412022/12/20 01:21:411) 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
202212191958152022/12/19 19:58:161) 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
202212191956392022/12/19 19:56:401) 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
202212191703112022/12/19 17:03:121) 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
202212191700432022/12/19 17:00:441) 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
202212191654192022/12/19 16:54:201) 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
202212191644512022/12/19 16:44:521) 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
202212191516332022/12/19 15:16:341) 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
202212191319362022/12/19 13:19:361) 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
202212191245032022/12/19 12:45:031) 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
202212191231502022/12/19 12:31:511) 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
202212191217302022/12/19 12:17:311) 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
202212191150152022/12/19 11:50:161) 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
202212191130142022/12/19 11:30:151) 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
202212191106532022/12/19 11:06:541) 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
202212191104002022/12/19 11:04:011) 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
202212191100472022/12/19 11:00:481) 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
202212190746452022/12/19 07:46:461) 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
202212190741042022/12/19 07:41:051) 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
202212190735132022/12/19 07:35:141) 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
202212190207192022/12/19 02:07:201) 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
202212190204242022/12/19 02:04:251) 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
202212190201202022/12/19 02:01:211) 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
202212190057382022/12/19 00:57:381) 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
202212190045592022/12/19 00:46:001) 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
202212190040472022/12/19 00:40:481) 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
202212190033222022/12/19 00:33:241) 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
202212190029422022/12/19 00:29:431) 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
202212150913202022/12/15 09:13:211) 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
202212150835272022/12/15 08:35:281) 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
202212150706322022/12/15 07:06:331) 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
202212081953232022/12/08 19:53:231) 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
202212080012412022/12/08 00:12:431) 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
202212071856522022/12/07 18:56:531) 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
202212070816222022/12/07 08:16:231) 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
202212070802202022/12/07 08:02:201) 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
202212062201052022/12/06 22:01:061) 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
202212061442592022/12/06 14:42:591) 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
202212021321332022/12/02 13:21:341) 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
202212021319042022/12/02 13:19:051) 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
202211291147462022/11/29 11:47:471) 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
202211271135142022/11/27 11:35:151) 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
202211271020072022/11/27 10:20:081) 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
202211270851042022/11/27 08:51:051) 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
202211270741412022/11/27 07:41:411) 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
202211270343092022/11/27 03:43:101) 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
202211270004552022/11/27 00:04:561) 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
202211241231312022/11/24 12:31:321) 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
202211231901572022/11/23 19:01:581) 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
202211221950162022/11/22 19:50:171) 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
202211191607072022/11/19 16:07:081) 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
202211181414182022/11/18 14:14:201) 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
202211180901112022/11/18 09:01:121) 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
202211171821102022/11/17 18:21:121) 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
202211131420432022/11/13 14:20:441) 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
202211120816262022/11/12 08:16:281) 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
202211120744112022/11/12 07:44:121) 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
202211061726312022/11/06 17:26:321) 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
202211051622322022/11/05 16:22:331) 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
202211041130402022/11/04 11:30:401) 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
202211040918232022/11/04 09:18:231) 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
202211020840582022/11/02 08:40:591) 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
202210311041542022/10/31 10:41:551) 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
202210241515112022/10/24 15:15:121) 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
202210220748212022/10/22 07:48:221) 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
202210220024072022/10/22 00:24:081) 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
202210181347152022/10/18 13:47:161) 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
202210181216162022/10/18 12:16:171) 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
202210161353512022/10/16 13:53:521) 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
202210161352052022/10/16 13:52:051) 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
202210121250002022/10/12 12:50:011) 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
202210112101332022/10/11 21:01:331) 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
202210111816042022/10/11 18:16:051) 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
202210111516382022/10/11 15:16:391) 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
202210110918502022/10/11 09:18:521) 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
202210110903002022/10/11 09:03:011) 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
202210110858052022/10/11 08:58:061) 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
202210100920112022/10/10 09:20:121) 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
202210081522492022/10/08 15:22:501) 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
202210081513492022/10/08 15:13:491) 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
202210071555132022/10/07 15:55:131) 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
202210071337122022/10/07 13:37:131) 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
202210071154592022/10/07 11:55:001) 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
202210071058472022/10/07 10:58:481) 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
202210071027112022/10/07 10:27:121) 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
202210041447142022/10/04 14:47:141) 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
202210041358102022/10/04 13:58:101) 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
202210031459152022/10/03 14:59:151) 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
202210031129202022/10/03 11:29:201) 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
202210021707072022/10/02 17:07:081) 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
202210021635092022/10/02 16:35:101) 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
202210021601412022/10/02 16:01:421) 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
202210021544422022/10/02 15:44:421) 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
202210021527492022/10/02 15:27:491) 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
202210021419102022/10/02 14:19:101) 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
202210021315582022/10/02 13:15:591) 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
202210021257082022/10/02 12:57:091) 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
202210021251162022/10/02 12:51:171) 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
202210012359292022/10/01 23:59:301) 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
202210011439482022/10/01 14:39:481) 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
202210011303212022/10/01 13:03:221) 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
202209271709462022/09/27 17:09:471) 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
202209271325082022/09/27 13:25:081) 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
202209231716182022/09/23 17:16:181) 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
202209221731502022/09/22 17:31:511) 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
202209181603422022/09/18 16:03:431) 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
202209180902002022/09/18 09:02:001) 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
202209180125202022/09/18 01:25:211) 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
202209171411542022/09/17 14:11:551) 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
202209170023522022/09/17 00:23:531) 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
202209151647232022/09/15 16:47:241) 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
202209101635502022/09/10 16:35:501) 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
202209090839172022/09/09 08:39:181) 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
202209081453132022/09/08 14:53:141) 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
202209061424362022/09/06 14:24:371) 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
202209061422252022/09/06 14:22:251) 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
202209060026122022/09/06 00:26:121) 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
202209052139042022/09/05 21:39:051) 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
202209021735152022/09/02 17:35:161) 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
202209021423252022/09/02 14:23:251) 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
202209021320342022/09/02 13:20:341) 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
202209020850472022/09/02 08:50:481) 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
202209011854342022/09/01 18:54:351) 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
202208301913592022/08/30 19:14:011) 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
202208301751102022/08/30 17:51:111) 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
202208301742262022/08/30 17:42:271) 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
202208300029472022/08/30 00:29:471) 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
202208300024142022/08/30 00:24:151) 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
202208292148252022/08/29 21:48:261) 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
202208291238382022/08/29 12:38:391) 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
202208270008442022/08/27 00:08:451) 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
202208261904072022/08/26 19:04:081) 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
202208261844172022/08/26 18:44:181) 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
202208260643052022/08/26 06:43:061) 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
202208252316472022/08/25 23:16:481) 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
202208241603002022/08/24 16:03:011) 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
202208241602592022/08/24 16:03:001) 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
202208241552272022/08/24 15:52:281) 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
202208241548202022/08/24 15:48:211) 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
202208241213192022/08/24 12:13:201) 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
202208221928562022/08/22 19:28:561) 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
202208211552162022/08/21 15:52:171) 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
202208211549412022/08/21 15:49:421) 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
202208190005522022/08/19 00:05:531) 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
202208182346332022/08/18 23:46:341) 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
202208181845192022/08/18 18:45:271) 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
202208180038552022/08/18 00:38:551) 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
202208171534072022/08/17 15:34:071) 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
202208171435052022/08/17 14:35:061) 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
202208170846502022/08/17 08:46:511) 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
202208170844252022/08/17 08:44:251) 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
202208170842452022/08/17 08:42:461) 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
202208162337482022/08/16 23:37:491) 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
202208162314222022/08/16 23:14:231) 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
202208162255592022/08/16 22:56:001) 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
202208162239362022/08/16 22:39:371) 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
202208161745072022/08/16 17:45:081) 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
202208161712162022/08/16 17:12:171) 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
202208161441332022/08/16 14:41:341) 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
202208151733392022/08/15 17:33:401) 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
202208151620392022/08/15 16:20:391) 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
202208151530332022/08/15 15:30:331) 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
202208151524452022/08/15 15:24:451) 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
202208151519482022/08/15 15:19:481) 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
202208151517312022/08/15 15:17:321) 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
202208151247172022/08/15 12:47:181) 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
202208151216532022/08/15 12:16:541) 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
202208141626022022/08/14 16:26:021) 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
202208132200452022/08/13 22:00:461) 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
202208131913122022/08/13 19:13:131) 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
202208120817302022/08/12 08:17:311) 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
202208112050242022/08/11 20:50:251) 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
202208091907232022/08/09 19:07:241) 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
202208091642352022/08/09 16:42:351) 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
202208091415262022/08/09 14:15:271) 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
202208091258472022/08/09 12:58:481) 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
202208091255572022/08/09 12:55:581) 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
202208062347012022/08/06 23:47:021) 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
202208061412262022/08/06 14:12:271) 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
202208060754242022/08/06 07:54:251) 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
202208040733122022/08/04 07:33:131) 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
202208022158432022/08/02 21:58:441) 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
202208022155262022/08/02 21:55:271) 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
202208011926522022/08/01 19:26:531) 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
202208011920402022/08/01 19:20:401) 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
202208011034052022/08/01 10:34:061) 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
202208011032302022/08/01 10:32:321) 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
202208011032272022/08/01 10:32:301) 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
202208011032262022/08/01 10:32:271) 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
202208011032222022/08/01 10:32:261) 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
202207312047522022/07/31 20:47:531) 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
202207311827002022/07/31 18:27:011) 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
202207311643432022/07/31 16:43:441) 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
202207301611012022/07/30 16:11:011) 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
202207301200432022/07/30 12:00:441) 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
202207291122052022/07/29 11:22:061) 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
202201061221422022/01/06 12:21:43SCADA 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
202207181846552022-07-18 18:46:561) 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
202207172126422022-07-17 21:26:431) 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
202207172108362022-07-17 21:08:371) 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
202207172029422022-07-17 20:29:431) 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
202207172026172022-07-17 20:26:191) 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
202207161334262022-07-16 13:34:281) 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
202207151513052022-07-15 15:13:061) 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
202207131905532022-07-13 19:05:551) 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
202207131839082022-07-13 18:39:101) 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
202207092226252022-07-09 22:26:261) 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
202207092224062022-07-09 22:24:071) 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
202207081812232022-07-08 18:12:231) 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
202207081648322022-07-08 16:48:321) 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
202207081404292022-07-08 14:04:311) 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
202207071532272022-07-07 15:32:281) 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
202207061138242022-07-06 11:38:251) 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
202207051329522022-07-05 13:29:531) 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
202207051327112022-07-05 13:27:121) 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
202207051324332022-07-05 13:24:341) 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
202207051153202022-07-05 11:53:221) 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
202207030008222022-07-03 00:08:231) 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
202207022101472022-07-02 21:01:481) 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
202207011058152022-07-01 10:58:161) 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
202206302053572022-06-30 20:53:581) 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
202206301645552022-06-30 16:45:561) 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
202206301221262022-06-30 12:21:271) 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
202206281443502022-06-28 14:43:501) 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
202206281333242022-06-28 13:33:251) 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
202206281324202022-06-28 13:24:211) 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
202206281319392022-06-28 13:19:401) 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
202206281313162022-06-28 13:13:171) 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
202206272220302022-06-27 22:20:311) 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
202206271118542022-06-27 11:18:551) 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
202206250829422022-06-25 08:29:431) 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
202206250304422022-06-25 03:04:431) 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
202206222049372022-06-22 20:49:381) 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
202206221925462022-06-22 19:25:471) 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
202206220928232022-06-22 09:28:271) 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
202206211816252022-06-21 18:16:281) 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
202206211639192022-06-21 16:39:201) 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
202206211617522022-06-21 16:17:541) 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
202206161400152022-06-16 14:00:171) 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
202206160853322022-06-16 08:53:331) 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
202206160852072022-06-16 08:52:081) 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
202206160255152022-06-16 02:55:161) 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
202206160244422022-06-16 02:44:431) 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
202206160242132022-06-16 02:42:151) 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
202206160239492022-06-16 02:39:511) 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
202206141837062022-06-14 18:37:081) 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
202206141601442022-06-14 16:01:451) 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
202206141547382022-06-14 15:47:391) 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
202206130040212022-06-13 00:40:221) 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
202206130036392022-06-13 00:36:401) 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
202206112025582022-06-11 20:25:591) 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
202206072134502022-06-07 21:34:511) 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
202206072132222022-06-07 21:32:221) 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
202206072122312022-06-07 21:22:311) 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
202206071905172022-06-07 19:05:201) 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
202206071858172022-06-07 18:58:181) 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
202206071700482022-06-07 17:00:501) 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
202206061900122022-06-06 19:00:131) 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
202206051719522022-06-05 17:19:541) 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
202206051637482022-06-05 16:37:491) 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
202206051521462022-06-05 15:21:471) 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
202206051516452022-06-05 15:16:471) 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
202206051508452022-06-05 15:08:461) 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
202206051501572022-06-05 15:01:591) 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
202206032237372022-06-03 22:37:391) 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
202206021943462022-06-02 19:43:471) 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
202206021552122022-06-02 15:52:131) 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
202206021158522022-06-02 11:58:531) 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
202206020829552022-06-02 08:29:561) 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
202206011456582022-06-01 14:57:011) 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
202205301956362022-05-30 19:56:371) 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
202205301944582022-05-30 19:44:591) 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
202205301940142022-05-30 19:40:171) 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
202205301923412022-05-30 19:23:451) 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
202205301917322022-05-30 19:17:331) 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
202205301902362022-05-30 19:02:381) 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
202205301845382022-05-30 18:45:391) 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
202205301840562022-05-30 18:40:561) 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
202205301837292022-05-30 18:37:341) 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
202205301820162022-05-30 18:20:171) 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
202205301735042022-05-30 17:35:051) 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
202205301734302022-05-30 17:34:311) 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
202205292149422022-05-29 21:49:431) 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
202205292133132022-05-29 21:33:141) 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
202205291951132022-05-29 19:51:141) 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
202205291831252022-05-29 18:31:261) 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
202205291828372022-05-29 18:28:381) 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
202205291826352022-05-29 18:26:351) 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
202205291826272022-05-29 18:26:291) 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
202205291602472022-05-29 16:02:481) 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
202205291435092022-05-29 14:35:101) 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
202205291421212022-05-29 14:21:221) 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
202205281127322022-05-28 11:27:331) 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
202205272130512022-05-27 21:30:521) 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
202205271527382022-05-27 15:27:391) 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
202205261220262022-05-26 12:20:271) 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
202205251021582022-05-25 10:21:591) 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
202205250653292022-05-25 06:53:301) 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
202205241447502022-05-24 14:47:511) 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
202205241424322022-05-24 14:24:331) 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
202205241238562022-05-24 12:38:571) 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
202205241237042022-05-24 12:37:061) 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
202205241200422022-05-24 12:00:441) 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
202205240844022022-05-24 08:44:031) 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
202205240641182022-05-24 06:41:191) 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
202205240639592022-05-24 06:40:001) 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
202205240635422022-05-24 06:35:441) 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
202205240015512022-05-24 00:15:521) 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
202205240014012022-05-24 00:14:021) 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
202205222147442022-05-22 21:47:461) 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
202205222145292022-05-22 21:45:311) 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
202205212215252022-05-21 22:15:251) 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
202205212141042022-05-21 21:41:071) 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
202205212004492022-05-21 20:04:491) 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
202205211950252022-05-21 19:50:261) 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
202205211947562022-05-21 19:47:571) 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
202205211919032022-05-21 19:19:061) 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
202205211845572022-05-21 18:45:581) 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
202205211358032022-05-21 13:58:041) 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
202205211355092022-05-21 13:55:101) 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
202205211259162022-05-21 12:59:171) 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
202205210049382022-05-21 00:49:391) 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
202205202302302022-05-20 23:02:301) 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
202205202300152022-05-20 23:00:161) 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
202205202256082022-05-20 22:56:091) 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
202205202253362022-05-20 22:53:371) 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
202205202251522022-05-20 22:51:531) 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
202205202127262022-05-20 21:27:261) 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
202205202122452022-05-20 21:22:461) 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
202205201934002022-05-20 19:34:001) 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
202205201930232022-05-20 19:30:301) 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
202205201301482022-05-20 13:01:491) 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
202205200620562022-05-20 06:20:571) 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
202205191632102022-05-19 16:32:111) 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
202205171942332022-05-17 19:42:341) 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
202205171906102022-05-17 19:06:111) 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
202205171202142022-05-17 12:02:15SCADA 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
202205152339502022-05-15 23:39:511) 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
202205152235392022-05-15 22:35:401) 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
202205151925092022-05-15 19:25:091) 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
202205151913462022-05-15 19:13:461) 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
202205151816392022-05-15 18:16:401) 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
202205151811412022-05-15 18:11:421) 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
202205151709522022-05-15 17:09:521) 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
202205151705362022-05-15 17:05:371) 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
202205151700522022-05-15 17:00:531) 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
202205151519172022-05-15 15:19:181) 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
202205142300392022-05-14 23:00:401) 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
202205141951222022-05-14 19:51:231) 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
202205141725382022-05-14 17:25:391) 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
202205141423592022-05-14 14:24:011) 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
202205131608122022-05-13 16:08:201) 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
202205131330542022-05-13 13:30:561) 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
202205102147282022-05-10 21:47:29SCADA 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
202205102032352022-05-10 20:32:351) 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
202205101903182022-05-10 19:03:191) 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
202205101848142022-05-10 18:48:151) 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
202205101847152022-05-10 18:47:151) 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
202205101827122022-05-10 18:27:141) 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
202205101227482022-05-10 12:27:481) 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
202205101144332022-05-10 11:44:341) 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
202205091019412022-05-09 10:19:42SCADA 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
202205082325032022-05-08 23:25:031) 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
202205082023032022-05-08 20:23:041) 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
202205051549212022-05-05 15:49:221) 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
202205041843402022-05-04 18:43:411) 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
202205041537422022-05-04 15:37:431) 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
202205031040492022-05-03 10:40:501) 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
202205031037032022-05-03 10:37:031) 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
202205031034062022-05-03 10:34:071) 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
202205030952582022-05-03 09:52:591) 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
202205011206082022-05-01 12:06:091) 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
202205011102432022-05-01 11:02:441) 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
202204291707392022-04-29 17:07:401) 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
202204291701472022-04-29 17:01:471) 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
202204291653432022-04-29 16:53:441) 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
202204281933032022-04-28 19:33:041) 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
202204272126242022-04-27 21:26:251) 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
202204270735202022-04-27 07:35:211) 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
202204270733192022-04-27 07:33:201) 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
202204270732342022-04-27 07:32:351) 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
202204261333392022-04-26 13:33:401) 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
202204261052182022-04-26 10:52:191) 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
202204260828012022-04-26 08:28:021) 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
202204260120272022-04-26 01:20:281) 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
202204260116532022-04-26 01:16:531) 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
202204260112582022-04-26 01:13:001) 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
202204252218122022-04-25 22:18:131) 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
202204252127172022-04-25 21:27:171) 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
202204242250292022-04-24 22:50:321) 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
202204241604022022-04-24 16:04:041) 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
202204241222512022-04-24 12:22:541) 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
202204240817202022-04-24 08:17:211) 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
202204240655102022-04-24 06:55:111) 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
202204200008332022-04-20 00:08:341) 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
202204192129352022-04-19 21:29:361) 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
202204152306192022-04-15 23:06:201) 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
202204152040282022-04-15 20:40:291) 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
202204152038032022-04-15 20:38:041) 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
202204152033352022-04-15 20:33:361) 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
202204150014592022-04-15 00:15:001) 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
202204142009422022-04-14 20:09:431) 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
202204121921172022-04-12 19:21:181) 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
202204111427062022-04-11 14:27:071) 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
202204111422472022-04-11 14:22:481) 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
202204111341022022-04-11 13:41:031) 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
202204102230492022-04-10 22:30:501) 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
202204101743062022-04-10 17:43:071) 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
202204101739232022-04-10 17:39:231) 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
202204101736592022-04-10 17:37:001) 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
202204101535452022-04-10 15:35:461) 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
202204101527402022-04-10 15:27:411) 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
202204091702432022-04-09 17:02:441) 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
202204091352252022-04-09 13:52:261) 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
202204082302562022-04-08 23:02:57SCADA 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
202204081840282022-04-08 18:40:291) 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
202204081458432022-04-08 14:58:441) 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
202204081408232022-04-08 14:08:231) 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
202204080654042022-04-08 06:54:051) 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
202204071655162022-04-07 16:55:171) 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
202204071647092022-04-07 16:47:101) 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
202204071559512022-04-07 15:59:521) 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
202204071454312022-04-07 14:54:321) 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
202204071340552022-04-07 13:40:561) 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
202204061613052022-04-06 16:13:061) 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
202204051406582022-04-05 14:06:591) 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
202204051358512022-04-05 13:58:511) 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
202204041630472022-04-04 16:30:481) 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
202204041622022022-04-04 16:22:031) 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
202204021751552022-04-02 17:51:561) 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
202204021506212022-04-02 15:06:231) 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
202204011525392022-04-01 15:25:401) 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
202204011522472022-04-01 15:22:481) 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
202204011511272022-04-01 15:11:271) 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
202204010808092022-04-01 08:08:101) 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
202203312308362022-03-31 23:08:371) 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
202203312028222022-03-31 20:28:231) 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
202203311956002022-03-31 19:56:011) 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
202203311858102022-03-31 18:58:121) 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
202203301204392022-03-30 12:04:401) 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
202203301055182022-03-30 10:55:191) 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
202203291632332022-03-29 16:32:351) 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
202203291629042022-03-29 16:29:051) 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
202203291445452022-03-29 14:45:471) 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
202203291437212022-03-29 14:37:221) 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
202203291358172022-03-29 13:58:181) 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
202203291355022022-03-29 13:55:031) 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
202203291233252022-03-29 12:33:261) 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
202203281959572022-03-28 19:59:591) 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
202203281819122022-03-28 18:19:141) 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
202203281746342022-03-28 17:46:351) 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
202203281746252022-03-28 17:46:271) 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
202203281737492022-03-28 17:37:501) 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
202203281717372022-03-28 17:17:401) 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
202203281709302022-03-28 17:09:341) 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
202203181950482022-03-18 19:50:501) 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
202203151642272022-03-15 16:42:281) 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
202203151640112022-03-15 16:40:121) 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
202203151633202022-03-15 16:33:211) 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
202203151306102022-03-15 13:06:111) 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
202203151300402022-03-15 13:00:411) 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
202203151300332022-03-15 13:00:341) 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