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”
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2
Q

AOP-9 automatic actions

A

Emergency Diesel Generator 1-2 starts

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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
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4
Q

AOP-9 immediate actions

A

NONE

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