Instruction for recovery of power generating plant after blackout

ENGINEER ON WATCH:

1. Change over the control level to ER
2. Inform duty officer by phone about blackout and estimated time for engine recovery
3. Stop the main engine
4. Sound engineer alarm
5. Start stand by diesel generator
6. Switch on synchronoscope and main circuit breaker running DG on main switchboard
7. Restart all pumps in following sequence:

• ME LO pump
• ME SW cooling pump
• ME FW cooling pump
• Piston cooling pump
• Boiler feed pump
• Check whether ME AUX blower is on auto mode

CHIEF ENGINEER:

1. Check all ME service system parameters and reset ME shut down button
2. Ring “DEAD SLOW AHEAD” by telegraph
3. Upon positive replay from bridge – start ME

ENGINEERS:

1. Check and restart all AUX systems
2. Check and restart the boiler
3. Check all running pumps in engine room for leakage and proper temperature
4. Restart A/C compressor; domestic fridge (ECR); A/C cooling pump

EL. ENGINEER:

1. Investigate reason of blackout to avoid reocurrence
2. Switch on ESB LINK circuit breaker
3. Stop emergency generator
4. Restart all consumer’s breakers

Procedure of restoring of power after black out on the vessel (example)

Vessel has 3 Main Diesel Generators; Power is supplied by one DG under normal operation at sea and in port. The other two DG is in place on 1st Standby and 2nd Standby accordingly. 

Power is restored after a blackout in the following process: 

AFTER A POWER BLACK OUT, EMERGENCY GENERATOR IN AUTO STAND BY STARTS UP AUTOMATICALLY AND POWER CAN BE BACK UP BY EMERGENCY GENERATOR IN LESS THAN 15 SECONDS. 

(E/G is started by battery power. If it not starts automatically, we have to manually start by switching to "MANUAL" mode position and Push Engine "START BUTTON" switch.) 

INTERCONNECTION BREAKER WITH "MSB" IS SWITCH-OFF AND THE E/G BREAKER IS SWITCH-ON AUTOMATICALLY. POWER IS NOW SUPPLIED FROM EG "ESB". 

WITHIN SECONDS FROM BLACK OUT TiME, AFTER EMC'Y GEN. STARTED AND POWER IS SUPPLIED FROM E/G "ESB", THE 1ST STANDBY MAIN DG STARTS UP AUTOMATICALLY AND GET ON LOAD. 

IF THE 1ST STANDBY MAIN DG FAILS TO START AUTOMATICALLY THE 2ND STANDBY MAIN D/G STARTS UP AND TAKE ON LOAD AUTOMATICALLY. 

If both the standby Main Diesel Generator fails to start automatically, we have to start at engine side and take it on load manually. Check that the reserve main air bottle no.2 must always be full. (Proceed to manual starting as per Starting Sequence as posted).

WHEN THE MAIN DIESEL GENERATOR GET ON LOAD, THE EMERGENCY GENERATOR BREAKER TRIPS, INTERCONNECTION BREAKER "SWITCH-ON" AND "ESB" HAVING POWER FROM "MSB". 

MAIN POWER IS NOW RESTORED. AS POWER IS RESTORED ALL AUXILIARY MACHINERY/PUMPS RUNNING IN OPERATION BEFORE THE BLACK OUT STARTS UP AUTO-SEQUENCIALLY ACCORDING TO PRIORITY SETTING INTERVAL IN SECONDS. 

STOP EMERGENCY GENERATOR MANUALLY AND RESET TO AUTO-STANDBY. 

CHECK THE CAUSE OF THE POWER BLACKOUT AND RECTIFY. 

OPERATE OR PUT TO STANDBY THE OTHER MAIN D/G AS REQUIRED.

Blackout recovery

The following action have been carried out.

1. Inform the Bridge and Master.
2. Notify Chief Engineer.
3. Start STBY generator and cut-in power.
4. Check and stop Emergency Generator & STBY position mode activated.
5. Start SW pump cooling system.
6. Check cause of black out and rectify.
7. Start ME Auxiliary Blowers.
8. Start ME Auxiliary pumps, LO Pump, etc.
9. Check all pressures & temperatures are normal.
10. STBY pumps check and restore to STBY mode.
11. Steering system check and restore to STBY mode.
12. Check Main Starting Air Bottle and press-up.
13. Check LO System on all STBY and service machinery & top-up as needed.
14. Check and remedy caused on STBY generator failure to gain power upon black-out.
15. Check Bridge & Engine communication system.
16. Check control air system at 6.5 – 7 kg/sm².
17. Drain air bottle of water accumulation.
18. Confirm all machineries in good working condition.