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Setpoints, Trips and Power > Setpoints - Aux Feed, Sta Pwer, CVCS > Flashcards

Setpoints - Aux Feed, Sta Pwer, CVCS Flashcards

1
Q

How long does the DBD state the station batteries will last?

A
  • 4 hours
  • 72hrs supplying D-11A/D-21A
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2
Q

At what temperature is a station battery inoperable per Tech Spec. 3.8.6?

A

Less than or equal to 70F

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3
Q

When is a station battery inoperable per Tech Spec 3.8.6 for cell voltage?

A

Cell voltage less than or equal to 2.07 volts

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4
Q

ABT-Y50 transfers how fast? How long to transfer back?

A

Transfers in less than 1 second. Waits 5 minutes to transfer back. Normal seeking (MCC-1)

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5
Q

What is the Aux Feed Flow in Cascade?

A

165 GPM per generator

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6
Q

What is the minimum required inventory for T-2 and T-81 combined?

A

100,000 gallons.

  • T-2 > 71%
  • T-81 > 83%

Based on 8 hours to decay heat removal via SG steaming.

Trip running aux feed pumps at 7.5% in T-2

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7
Q

What is the design feed flow and pressure for the Aux Feed Pumps?

A

P-8A/B: 430 GPM at 1,000 psia

P-8C: 330 GPM at 900 psia with 4 PCP running or 1000 psia of no PCP running

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8
Q

What trips an aux feed pump?

A

P-8A/B trips at 6.7 psig

  • 2 out of 3 pressure switches (de-energize to trip).
  • Powered from Y-10, swap to Y-30 on loss

P-8C trips at 8.0 psig

  • 2 out of 3 pressure switches (de-energize to trip).
  • Powered from Y-20 only

P-8A/C trip on overcurrent (inverse time and instantaneous)

P-8B trips at 110% overspeed (3560 rpm rated, 3845-3916 rpm trip)

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9
Q

What generates an AFAS signal?

A

30% level in either SG

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10
Q

How does AFAS start Aux Feed Pumps?

A

30% level in either SG

P-8A starts at 2.5 seconds

P-8C starts at 30.5 seconds or instantaneously after that time if

  • Both SG receiving less than 100 GPM flow
  • P-8A breaker open in after start position

P-8B starts at 112.5 seconds or instantaneously after that time if

  • P-8A or P-8C not running or delivering flow
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11
Q

What happens to FIC-0737A/0736A for P-8C on AFAS?

A

If in AUTO or PF Mode swaps to CASCADE.

Bypass valves would close.

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12
Q

What are the amp limits for the aux feed pumps?

A

P-8A - 112 amps

P-8C- 99 amps

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13
Q

CV-2001 (Letdown Isolation valve) isolates on what?

A

CV-2001 (Letdown Isolation valve)

Closes at 470F on TICA-0201. TICA alarms at 460F.

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14
Q

What closes CV-2003, Letdown Orifice Stop Valve?

A

Pressurizer level <36% valve goes closed if in Auto. Open at >36%.

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15
Q

What closes CV-2002,Letdown Orifice Bypass valves?

A

CV-2002, CV-2202 are in series.

CV-2202 controlled via HIC-2202, Letdown Line Bypass Controller Indicator

CV-2002 closes on:

  • 500 psig on PS-0220 or PS-0221
    • Prevents lifting RV-2006 (lifts at 600 psig)
  • 190 psig on PS-0222 or 160 gpm on FIC-0202
    • Protects Demins
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16
Q

RV-2006 (Letdown Line Relief) setpoint?

A

600 psig

Relieves at 200 gpm to Quench Tank

17
Q

TIA-0202 alarm setpoint?

A

TIA-0202 (Relief Valve RV-2006 Outlet Temp Ind Alarm)

  • Alarms at 200F
  • Indicates RV-2006 lifting or leaking by
18
Q

PT-0202, Low Pressure Letdown Pressure Transmitter setpoints?

A

PT-0202, Low Pressure Letdown Pressure Transmitter

Sends signal to

PIC-0202 Intermediate Letdown Regulating valve (Backpressure Controller)

PA-0202

  • Alarms EK-0704 (Letdown Ht Ex Tube Inlet Hi-Lo Press on
  • 500 psig High Pressure
  • 400 psig Low Pressure
19
Q

What is setpoint of DPC-0909, Letdown Hx CCW Differential Pressure Controller?

A

DPC-0909, Letdown Hx CCW Differential Pressure Controller

Controls CCW flow to Letdown Ht Exchanger via CV-0909. Flow limited to < 12 psid.

Alarms at 14 psid on EK-0706, Letdown Hx Cooling Excess Flow

20
Q

What is TICA-0204, Letdown Flow Local Temp Controller Ind setpoint?

A

TICA-0204, Letdown Flow Local Temp Controller Ind

Sends bypass signal at 130F to CV-2023, Ion Exchange Bypass Valve

Alarms EK-0703, Letdown Ht Ex Tube Outlet Hi Temp

No CR indication

21
Q

What closes CV-2009, Ledown Isolation?

A

CV-2009, Letdown Isolation

CHP or CHR

22
Q

What is the setpoint for RV-2013, Low Pressure Letdown Line Safety Relief Valve?

A

RV-2013, Low Pressure Letdown Line Safety Relief Valve

  • 200 psig
  • Discharges to VCT
23
Q

Setpoint for EK-1512, Purification Filter High Diff Press

A

EK-1512, Purification Filter High Diff Press

Alarms at 35 psid on F-54A/B Dimin Post filter.

24
Q

Setpoint for CV-2056, Diverting Valve?

A

CV-2056, Diverting Valve

LS-0204, VCT Level

  • 94.4% or higher diverts to CWRT via Vacumn Degassifier
  • 91.6% or less goes to VCT
25
Setpoint for CV-2083 and CV-2099, PCP Controlled Bleedoff Containment Isolation?
CV-2083 and CV-2099, PCP Controlled Bleedoff Containment Isolation Closes on CHP or CHR
26
Setpoint for RV-2082, PCP Controlled Bleedoff Relief Valve?
RV-2082, PCP Controlled Bleedoff Relief Valve Opens at 145 psig to direct bleedoff to PSDT CV-2083 or CV-2099 fail closed on loss of air or CHP/CHR
27
Setpoint for LT-0205 (VCT Level Transmitter)?
LT-0205 (VCT Level Transmitter) Output to LA-0205 (VCT Level Alarm) EK-0709 (Volume Control Tank Hi-Lo Level) * 96.6% high VCT * 62.5% low VCT
28
Setpoint for PIA-0205, VCT Pressure Indicator Alarm?
PIA-0205, VCT Pressure Indicator Alarm EK‑0708 (Volume Control Tank Hi-Lo Pressure) 50 psig High 4 psig Low
29
Setpoint for LS-0204, VCT or RWS Valve Level Switch?
LS-0204, VCT or RWS Valve Level Switch High * 94.4% CV-2056 flows to CWRT * 91.5% CV-2056 flows to VCT Low * 7.9% MO-2087, VCT Outlet, closes and MO-2160, SIRW Outlet, opens * 7.9% EK-0710 (Volume Control Tank Lo-Lo Level) * 7.9% CV-2155, Blender Outlet to VCT, closes 10.8% rising allows repositioning of MO-2087 and MO-2160
30
What are P-55A Charging Pumps flows and trips
P-55A Variable speed/flow 33 to 53 gpm Trips * 150F Fluid Drive Temp (Alarms at 140F) * 10 psig Suction Pressure * 9 psig Oil Pressure * Overcurrent * Load Shed
31
What are P-55B/C flows and trips?
P-55B/C flows and trips Fixed speed/flow * 40 gpm Trips * 10 psig Suction Pressure * 9 psig Oil Pressure * Overcurrent * Load Shed
32
PS-0212, Charging Pump Discharge Pressure setpoint?
PS-0212, Charging Pump Discharge Pressure 2000 psig: EK-0740 Charging Pumps Discharge Lo Press
33
FIA-0212, Charging Line Flow Indicator Alarm setpoint?
FIA-0212, Charging Line Flow Indicator Alarm 25 gpm Alarm Start signal to P-55B post Normal/DBA Sequencer
34
LIA-0208/206, Boric Acid Tank T-53A (53B) Level Indicator Alarm setpoint?
LIA-0208/206 , Boric Acid Tank T-53A (53B) Level Indicator Alarm 20% brings in low level alarm tile for affected tank 2.1% brings in lo-lo level alarm tile for affected tank 100% brings in high level alarm tile for affected tank
35
LS-0209/207, T-53A (T-53B) Low Level Switch setpoint?
LS-0209/207, T-53A (T-53B) Low Level Switch 94.5% EK-0723, Conc Boric Acid Tank Lo Level
36
EK-0717, Conc Boric Acid Leakage/FIC-0210B Trouble setpoint?
EK-0717, Conc Boric Acid Leakage/FIC-0210B Trouble leakage flow greater than or equal to 1 gal after the end of a batch
37
EK-0711, Pri Makeup Water FIC-0210A Leakage/FIC-0210A Trouble setpoint?
EK-0711, Pri Makeup Water FIC-0210A Leakage/FIC-0210A Trouble setpoint Leakage flow greater than or equal to 2 gpm after the end of a batch
38
FIC-210B/FIC-210A flow ranges?
FIC-210B/FIC-210A FIC-210B (Boric Acid Flow Controler): 0 to 25 gpm FIC-210A (Water Flow Controler): 0 to 120 gpm
39

Setpoints, Trips and Power (3 decks)

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