TCS(L3) - Turbine Building Closed Cooling Water

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6 Terms

1
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Simplified Diagram

Loads

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2
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TCS

Surge Tank

LCV-V095

75gpm MU capacity

Fails Closed (Don’t make a mess)

MANUAL LOCAL BYPASS for alternate fill in case AOV fails

Turbine Building

Control Band: 72.5 - 126”

3
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TCS Pumps

Power Supply?

Auto-Start?

Normal Conditions?

ES-5(6)

Start: 67psig Low Discharge Pressure *Suct/Disch interlock

Normal: 11,000gpm

4
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Stator Cooling Water

Tank

Tank is Manual MU Only

Constant sparged with CAS

5
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Stator Cooling Water

Pumps

Auto-Start?

Auto-Stop?

Power Supply?

Start: 106psig low discharge pressure

Stop: Generator Trip

EK-31(41)

<p>Start: 106psig low discharge pressure</p><p>Stop: Generator Trip </p><p>EK-31(41)</p>
6
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Stator Cooling Water

Heat Exchangers and TCV-009

Two full capacity HXs, but standby HX maintains flow to prevent stagnation

Controls to nominal 122F, Fails to cool position

Turbine Trips:

17.4psig 70secTD

195F 55secTD

<p>Two full capacity HXs, but standby HX maintains flow to prevent stagnation</p><p>Controls to nominal 122F, Fails to cool position</p><p></p><p>Turbine Trips:</p><p>17.4psig 70secTD</p><p>195F 55secTD</p>