CONDENSATE Flashcards
(22 cards)
What action is required if the number of COPs is reduced to 1 with only 1 booster pump and 1 FW pump?
Ensure plant load is reduced to <50% (OP-TM-421-000).
What is the minimum required CST level per T.S. 3.4.1.1(c)?
CSTs require >150,000 gallons each (11 ft).
What is the restoration timeline if one CST is INOPERABLE?
Restore in 72 hours.
What actions are required if both CSTs are INOPERABLE?
Be subcritical in 1 hour, HSD in 6 hours, and CSD in 6 hours.
What is the secondary coolant activity limit for I-131?
≤0.10μCi/g or go to HSBY in 6 hours.
What is the trip and start permissive pressure for condensate booster pumps?
Trip at 3# oil pressure, start permissive at 6#.
What triggers the auto start of Booster Pump Aux Oil Pumps (CO-P-9A/B/C)?
Auto start when the pump is taken out of PTL or pressure drops to 5#.
What happens to CO-P-9A/B/C at 12# pressure?
They trip (shaft driven).
What is the impact of losing “B” DC on the counting circuit?
Prevents auto start and trip of pumps and no remote CO-P-2 starts.
What sequence do CO-P-2 pumps follow during startup?
They always start in A-B-C sequence.
What happens to CO-V-6 (Hotwell Reject) on high hotwell level?
It OPENS to reject water to CSTs.
What happens to CO-V-6 on high CST level?
It CLOSES.
What is the function of CO-V-7 (Normal MU)?
Maintains normal hotwell level and closes during emergency lineup.
What is the function of CO-V-8 (Emergency MU)?
Vacuum drags makeup water to CST directly, opens during emergency lineup.
What happens to CO-V-6, CO-V-7, and CO-V-8 on loss of air?
CO-V-6 fails CLOSED, CO-V-7/8 fail OPEN.
What is the function of CO-V-51?
Bypasses Powdex, fails OPEN on loss of air, opens at 35psid rising and fully opens at 50psid.
When does CO-V-5 (Booster Pump Recirc) open?
Opens when CO <3000gpm and discharge pressure >100#.
What is the purpose of CO-V-5?
Protects the pump string and prevents draining the heater.
What is the function of CO-T-9 (Condensate Head Tank)?
It is AUTO filled from CO-P-2 discharge and supplies condenser vacuum seals, with vacuum pump seals tapping off before the head tank.
What action should be taken for emergency NS-T-1 makeup if DW-P-1 is unavailable and NS-T-1 level is lowering?
OPEN CO-V-170.
What happens if CO-FE-9 fails low?
CO flow will increase, the recirculation valve will OPEN, and the discharge pressure of the booster pumps will decrease (higher flow).
What is the restoration requirement if both CO-T-1A/B level transmitters are INOPERABLE?
They must be restored within 7 days.
