DG Load Trial and Regular checks

Requirements:

1	Inform & Ensure availability of TMD/EMD/C&I
2	SG/TG/BOP source-2 AC Power Supply Interruption. Inform C&I for Standby chargers
3	Ensure DG Set Tank Oil Level Adequate
4	Evacuate and Isolate Boiler Passenger, Service Building Lift and Isolate. Inform EMD(temporary supply )
5	Arrange 3 Walky Talky : 1-CR 2-DG board 3-DG Set room
6	Note Down Initial Parameters of DG Set

Status of Unit:

1	TG on Barring
2	Generator Depressurized(H2/CO2 Purged out)
3	Seal Oil system in Service
4	All Drives in DG Bus in available condition( Plan within 1-2 days of Unit shut down)
5	DG Board charged from Normal Incomer Breaker from Unit Service Board

Sequence:

Ø  Start all drives on DG Bus from other standby source(other board)

Ex- SOP-2 to Sop-1, FD/ID/PA Lop-2 to LOP-1

Ø  Start Main DG set & Note Down: Volatge, RPM, Tank Level, LO Pr/Temp, Battery Voltage

Ø  Trip Normal Incomer from USS and Close DG set Incoming breaker to charge DG Bus

Ø  Start Loading Drives by starting them which are on DG Bus

Ø  Continue Test run fro ½ -1 Hour.

Normalisation:

Ø  Start all drives on DG Bus from other standby source(other board)

Ø  Trip DG Set Incoming Breaker  and Close Normal Incomer From USS

Ø  Switch Off DG Set

Regular checks:

Ø  DG Set Fuel Tank Level Normal

Ø  DG Set engine Oil Level Normal

Ø  Battery charger OK

Ø  Engine Coolant level is OK

Ø  DG Set Incomers to DG Bus Healthy