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10 Cards in this Set
- Front
- Back
Heater Drain Pump Trips
Test Question |
1. Lo-Lo Level in suction Heater - note U1 is 5A/B and U2 is 4A/B! 2. Main Turbine Trip 3. Overcurrent 4. Overload 5. Both Suction valves (HMO-563/564) closed on MHDP |
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Heater Drain Pump Suction Valves
Test Question |
1. One must be fully OPEN to start MHDP. 2. Position of suction x-ties determines which Heater Lo-Lo Level will trip MHDP. |
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Heater Drain Pump ELO will modulate open when flow is?
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<1250 gpm
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Heater Drain Pumps provide about ____% of the flow to the MFPs.
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25
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Which heaters do not have alternate drains to the Condenser in U1? U2? |
6A/B & 4A/B in Unit 1 6A/B only in Unit 2 |
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Bleed steam isolation valves close on? |
1. Turbine Trip 2. Hi-Hi heater level |
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FW heater alternate drains open on ______ and fail _____ on a loss of air: The normal drains fail _____: |
1. High heater level 2. open 3. closed |
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Drain Cooler Terminal Temperature Difference (DCTTD) is calculated by: |
Drain Temperature Out - Feedwater Temp In |
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The Reheater Coolant Drain Tank (RCDT) and Moisture Separator Drain Tank (MSDT) goes to which heaters in both units? Test Question |
U1: RCDT - 6A/B, MSDT - 5A/B U2: RCDT - 6A/B, MSDT 4A/B |
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Bleed Steam check valves are installed to prevent what? Test Question |
Turbine overspeed |