AOP-13 "Loss of EY-20

Question 1

AOP-13 entry conditions

Answer 1

• EK-0545 “Preferred AC Bus NO 2 Trouble”

- Channel “B” RPS Trip Ladder lights illuminated

Question 2

AOP-13 automatic actions

Answer 2

Main Feedwater control for E-50B, “B” S/G, transfers to EY-40, Preferred AC Bus No 4

Question 3

AOP-13 reactor trip criteria

Answer 3

CV-0710, Feed Pump P-1B Recirculation Valve, fails open with reactor power > 80%

Question 4

AOP-13 immediate actions

Answer 4

NONE