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TURBINE FIRE PROTECTION LOGICS

TWO NUMBER OF FIRE PROTECTION PUSH BUTTONS IN RED COLOUR WERE PROVIDED IN

3 PLACES.

1. UCB CONTROL DESK - FROM TOP TO BOTTOM

1. FP.CHANNEL-I

2. FP.CHANNEL-II

2. NEAR LP TURBINE [PUSH BUTTON ARRANGEMENT FROM LEFT TO RIGHT]

RESPECTIVELY.

FP.CHANNEL-I FP.CHANNEL-II

3. MAIN OIL TANK ROOM ENTRANCE [PUSH BUTTON ARRANGEMENT FROM LEFT TORIGHT]RESPECTIVELY.

FP.CHANNEL-I FP.CHANNEL-II

FIRE PROTECTION CHANNEL-I OPERATES GATE VALVE-I NEAR MAIN OIL TANK.

FIRE PROTECTION CHANNEL-II OPERATES GATE VALVE-II NEAR GOVERNING RACK.

1. FP.CHANNEL-I(MINOR)

2. FP.CHANNEL-II(MAJOR)

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FIRE PROTECTION CHANNEL-I

FIRE PROTECTION OPERATED.

FIRE PROTECTION CHANNEL-1 NOT COMPLETE.

TURBINE TRIPPED.

TURBINE TRIP GEAR OPERATED.

FIRE PROTECTION CHANNEL-II

FIRE PROTECTION OPERATED.

FIRE PROTECTION CHANNEL-2 NOT COMPLETE.

TURBINE TRIPPED.

TURBINE TRIP GEAR OPERATED.

IF FIRE PROTECTION CHANNEL-II OPERATES FOLLOWING THING HAPPENS:

1. TURBINE TRIPS.

2. GATE VALVE-II TRIPS (NEAR GOVERNOR RACK)-SHUT-OFF VALVE CLOSES.

3. VACUUM BREAKER PROTECTION OPENS.

4. STARTING EJECTOR STEAM VALVE - PROTECTION CLOSES.

5. STARTING EJECTOR AIR VALVE - PROTECTION OPENS.

6. FIRE PROTECTION SWITCH-II OPERATED ALARM.

7. SGC OIL SUPPLY IS MADE OFF.

8. SLC AUXILIARY OIL PUMP-A IS MADE OFF.

9. SLC AUXILIARY OIL PUMP -B IS MADE OFF.

10. SLC EMERGENCY OIL PUMP IS MADE ON.ON HP CASING.120C LOGIC EOP WILL START.

11. SLC JOCKING OIL PUMP-A IS MADE OFF.

12. SLC JOCKING OIL PUMP-B IS MADE OFF.

13. SLC TURNING GEAR IS MADE OFF.

14. AOP-A IS PROTECTION OFF.

15. AOP-B IS PROTECTION OFF.

16. JOP-A IS PROTECTION OFF. 17. JOP-B IS PROTECTION ON FOR HAND BEARING PURPOSE.