| ANALYSIS OF FORCED OUTAGES - ATPS CHACHAI 2009-10 | |||||||
| JULY | |||||||
| S.N. | DETAILS | DATE OF SHUTDOWN | DATE OF SYNCHRONISATION | OUTAGE IN HOURS:MIN | MU LOST | REASON | CORRECTIVE ACTION TAKEN |
| PLANNED | |||||||
| 3 | UNIT-3 | 0.00 | 0.00 | ||||
| 4 | UNIT-4 | 26.07.09 | 144:00 | 17.28 | C.O.H. | C.O.H.is being carried out. | |
| FORCED | |||||||
| 3 | UNIT-3 | 03.07.2009 | 09.07.2009 | 151:40 | 18.20 | Tube leakage in Cage Bypass. | Tube Leakage Attended. |
| 21.07.2009 | 21.07.2009 | 6:08 | 0.74 | Furnace Dark. | After purging,unit restarted. | ||
| 22.07.2009 | 27.07.2009 | 107:50 | 12.94 | Tube leakage in Cage Bypass. | Tube Leakage Attended. | ||
| 27.07.2009 | Generator Seal Face Temp. rise | Unit is under shutdown. | |||||
| 4 | UNIT-4 | 07.07.09 | 07.07.09 | 7:35 | 0.91 | Electrical fault | Fault Attended & Unit restarted |
| 08.07.09 | 20.07.09 | 296:17 | 35.554 | Tripped on Furnace Protection. | After purging,unit restarted. | ||
| 21.07.09 | 24.07.09 | 94:55 | 11.39 | Furnace Dark, HR/CR line hangers got broken. | Unit declared on C.O.H.w.e.f.25.07.09 | ||
| TOTAL | 0.00 | 79.73 | |||||
| AUGUST | |||||||
| S.N. | DETAILS | DATE OF SHUTDOWN | DATE OF SYNCHRONISATION | OUTAGE IN HOURS:MIN | MU LOST | REASON | CORRECTIVE ACTION TAKEN |
| PLANNED | |||||||
| 3 | UNIT-3 | 0.00 | 0.00 | ||||
| 4 | UNIT-4 | 0.00 | 0.00 | ||||
| FORCED | |||||||
| 3 | UNIT-3 | 27.07.2009 | 06.08.09 | 248:35 | 29.83 | Generator Seal Face Temp. rise | Generator Seal replaced & Unit restarted |
| 06.08.09 | 08.08.09 | 46:40 | 5.60 | Relay oil pressure low | Unit restarted & synchronised. | ||
| 11.08.09 | 13.08.09 | 25:40 | 3.08 | Relay oil pressure low | Unit restarted & synchronised. | ||
| 19.08.09 | 19.08.09 | 6:25 | 0.77 | 220 KV Station Supply Failure | Unit restarted & synchronised. | ||
| 19.08.09 | 20.08.09 | 20:58 | 2.52 | Low Farward relay operated | Unit restarted & synchronised. | ||
| 20.08.09 | 20.08.09 | 1:25 | 0.17 | Relay oil pressure low | Unit restarted & synchronised. | ||
| 20.08.09 | 21.08.09 | 5:28 | 0.66 | Relay oil pressure low | Unit restarted & synchronised. | ||
| 21.08.09 | 23.08.09 | 59:10 | 7.10 | Relay oil pressure low | Unit restarted & synchronised. | ||
| 4 | UNIT-4 | 25.07.09 | C.O.H. | ||||
| TOTAL | 49.73 | ||||||
| SEPTEMBER | |||||||
| S.N. | DETAILS | DATE OF SHUTDOWN | DATE OF SYNCHRONISATION | OUTAGE IN HOURS:MIN | MU LOST | REASON | CORRECTIVE ACTION TAKEN |
| PLANNED | |||||||
| 3 | UNIT-3 | 0.00 | 0.00 | ||||
| 4 | UNIT-4 | 25.07.09 | C.O.H. | ||||
| FORCED | |||||||
| 3 | UNIT-3 (120 MW) | NO TRIPPING | |||||
| 4 | UNIT-4 (120 MW) | 25.07.09 | C.O.H. | ||||
| UNIT-5 (210 MW) | 13.09.09 | 13.09.09 | 04:41 | 0.96 | System Jerk | Fault attended, Unit restarted & synchronised. | |
| 17.09.09 | 20.09.09 | 51:31 | 10.82 | Station XR tripped on Earth Fault | Fault attended, Unit restarted & synchronised. | ||
| 22.09.09 | 22.09.09 | 03:26 | 0.72 | Generator Protection Operated | Fault attended, Unit restarted & synchronised. | ||
| TOTAL | 0.00 | 12.50 | |||||