AOP-9 "Loss of Bus 1D" Flashcards
1
Q
AOP-9 entry conditions
A
Symptoms of loss of Bus 1D (loss of power to all Bus 1D powered components) in conjunction with 1 or more of the following:
- EK-0515 “2400V Bus 1C and/or 1D HI/LO Voltage Undervoltage” (<2375 V, 18 sec time delay)
- EK-0522 “Bus Fail to Transfer”
- EK-0521 “2400V Standby Power Not Available”
- EK-0510 “2400V Bus 1D Bkr 152-202 Trip” (if closed)
- EK-0504 “2400V Bus 1D Bkr 152-203 Trip” (if closed)
- EK-0532 “Bus 1C or 1D Overcurrent Lockout”
2
Q
AOP-9 automatic actions
A
Emergency Diesel Generator 1-2 starts
3
Q
AOP-8 equipment trip criteria
A
Trip Emergency Diesel Generator 1-2 using the overspeed trip if:
- Jacket water temperature > 195 F
- Lube oil temperature > 200 F
4
Q
AOP-9 immediate actions
A
NONE