| ANALYSIS OF FORCED OUTAGES - ATPS CHACHAI 2009-10 | |||||||
| OCTOBER | |||||||
| S.N. | DETAILS | DATE OF SHUTDOWN | DATE OF SYNCHRONISATION | OUTAGE IN HOURS:MIN | MU LOST | REASON | CORRECTIVE ACTION TAKEN |
| PLANNED | |||||||
| 1 | UNIT-3 | 0.00 | 0.00 | ||||
| 2 | UNIT-4 | 744:00 | 89.28 | C.O.H. | C.O.H.is being carried out. | ||
| FORCED | |||||||
| 1 | UNIT-3 | 07.10.2009 | 07.10.2009 | 8:58 | 1.08 | Failure of 6.6 KV unit & Station Supply | Supply restored & Unit Synchronised |
| 2 | UNIT-4 | C.O.H. | |||||
| 3 | UNIT-5 | 13.10.2009 | 13.10.2009 | 3:36 | 0.756 | Tripped due to Drum Level protection auto control failed | Unit restarted |
| TOTAL | 0.00 | 1.83 | |||||
| NOVEMBER | |||||||
| S.N. | DETAILS | DATE OF SHUTDOWN | DATE OF SYNCHRONISATION | OUTAGE IN HOURS:MIN | MU LOST | REASON | CORRECTIVE ACTION TAKEN |
| PLANNED | |||||||
| 1 | UNIT-3 | 0.00 | 0.00 | ||||
| 2 | UNIT-4 | 720.00 | 86.40 | C.O.H. | C.O.H.is being carried out. | ||
| FORCED | |||||||
| 1 | UNIT-3 | 11.11.2009 | 13.11.2009 | 53:50 | 6.46 | Boiler Tube Leakage | Tube leakage attended,Unit synch. |
| 2 | UNIT-4 | C.O.H. | |||||
| 3 | UNIT-5 | 01.11.2009 | 01.11.2009 | 11:50 | 2.485 | Tripped due to PA Fan control damper malfunctioning | Unit re-started & Synchronised. |
| 01.11.2009 | 01.11.2009 | 3:44 | 0.784 | Both I.D.Fan tripped on over current. | Unit re-started & Synchronised. | ||
| TOTAL | 9.73 | ||||||
| DECEMBER | |||||||
| S.N. | DETAILS | DATE OF SHUTDOWN | DATE OF SYNCHRONISATION | OUTAGE IN HOURS:MIN | MU LOST | REASON | CORRECTIVE ACTION TAKEN |
| PLANNED | |||||||
| 1 | UNIT-3 | 0.00 | 0.00 | ||||
| 2 | UNIT-4 | 744:00 | 89.28 | C.O.H. | C.O.H.is being carried out. | ||
| FORCED | |||||||
| 1 | UNIT-3 (120 MW) | 16.12.2009 | 20.12.2009 | 105:30 | 12.66 | Economiser tube leakage | Tube leakage attended,Unit synch. |
| 23.12.2009 | 26.12.2009 | 65:15 | 7.83 | Pendent Reheater tube leakage | Tube leakage attended,Unit synch. | ||
| 2 | UNIT-4 (120 MW) | C.O.H. | |||||
| 3 | UNIT-5 (210 MW) | 09.12.2009 | 09.12.2009 | 02:47 | 0.59 | PA fan IGV control failure | Fault attended, Unit restarted & synchronised. |
| 09.12.2009 | 10.12.2009 | 03:37 | 0.76 | Drum Level very high | Unit re-started & Synchronised. | ||
| 10.12.2009 | 10.12.2009 | 10:21 | 2.17 | Main Steam temperature Low | Unit re-started & Synchronised. | ||
| 10.12.2009 | 10.12.2009 | 3:30 | 0.74 | Drum Level very high | Unit re-started & Synchronised. | ||
| 16.12.2009 | 18.12.2009 | 33:17 | 6.99 | Generator Stator E/F relay operated | Unit re-started & Synchronised. | ||
| TOTAL | 0.00 | 11.24 | |||||