Cook Ilt - Bleed Steam & Heater Drains

Front 1

Heater Drain Pump Trips

Test Question

Back 1

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

Front 2

Heater Drain Pump Suction Valves

Test Question

Back 2

1. One must be fully OPEN to start MHDP.

2. Position of suction x-ties determines which Heater Lo-Lo Level will trip MHDP.

Front 3

Heater Drain Pump ELO will modulate open when flow is?

Back 3

<1250 gpm

Front 4

Heater Drain Pumps provide about ____% of the flow to the MFPs.

Back 4

25

Front 5

Which heaters do not have alternate drains to the Condenser in U1?

U2?

Back 5

6A/B & 4A/B in Unit 1

6A/B only in Unit 2

Front 6

Bleed steam isolation valves close on?

Back 6

1. Turbine Trip

2. Hi-Hi heater level

Front 7

FW heater alternate drains open on ______ and fail _____ on a loss of air:

The normal drains fail _____:

Back 7

1. High heater level

2. open

3. closed

Front 8

Drain Cooler Terminal Temperature Difference (DCTTD) is calculated by:

Back 8

Drain Temperature Out - Feedwater Temp In

Front 9

The Reheater Coolant Drain Tank (RCDT) and Moisture Separator Drain Tank (MSDT) goes to which heaters in both units?

Test Question

Back 9

U1: RCDT - 6A/B, MSDT - 5A/B

U2: RCDT - 6A/B, MSDT 4A/B

Front 10

Bleed Steam check valves are installed to prevent what?

Test Question

Back 10

Turbine overspeed