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Systems Test 3 > LOT 201.07 Rx Makeup System > Flashcards

LOT 201.07 Rx Makeup System Flashcards

1
Q
  • LOT 201.07 Rx Makeup System*
    • *

What will auto start/ stop the BAT pumps?

A
  • Auto Start:*
  • *VCT Level (28%)**
  • 200 gpm blend flow (RMWST/BAT)*
  • *Manual / Borate Initiated**
  • Manual: 200 gpm blend flow (RMWST/BAT)*
  • Borate: Flowrate (User Defined 0-100 gpm)*
  • Auto Stop:*
  • *VCT Level (48%)**
  • Trip:*
  • *Overload**

Can be controlled from ASP.

  • Note:*
  • Unlike RMW pumps that trip on low level, the BAT pumps have no low level trip.*
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2
Q
  • LOT 201.07 Rx Makeup System*
    • *

What is the usable volume and the boric acid concentration of the BATs?

A
  • Usable Volume:*
  • *33,500 gal/tank**
  • 2 tanks*
  • Boron Concentration:*
  • *7000 - 7700 ppm**

MODES 1 - 6:

  • ≥ 27,000 gal (MODES 1 - 4)
  • ≥ 3,200 gal (MODES 5 - 6)
  • ≥ 7000 ppm
  • ≥ 65 ˚F

CP004:

  • Level and temperature indication
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3
Q
  • LOT 201.07 Rx Makeup System*
    • *

What are the different ways an operator can inject boron into the RCS?

A
  • BAT:*
  • *Charging Line**
  • Normal / Alt. Immediate: Flow limited by FCV-0110A (0-100 gpm)*
  • Emergency: BAT pump flowrate (125 gpm)*
  • *RCP Seal Injection**
  • 5 gal/min per pump*
  • *Gravity Feed**
  • CV-0333 / CV-0226*
  • RWST:*
  • *Charging Line**
  • MOV-112C / MOV-113B*
  • BTRS:*
  • *Demins**

The emergency boration path through the charging line, the gravity feed path, and the RWST path are all considered “Emergency Boration.”

  • Note:*
  • VCT Level - Low 2 (3%) will close MOV-112B/MOV-113A and prevent normal boration.*
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4
Q
  • LOT 201.07 Rx Makeup System*
    • *

Where is the water injected into the CVCS during alt. dilute?

A

Some goes to VCT inlet

Some goes to CCP suction

Advantage:

  • Reduces delay in diluting the RCS

Disadvantage:

  • Some of water will bypass VCT and will not absorb H2
    • *
  • Note:*
  • During dilute mode, all flow goes into VCT inlet.*
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5
Q
  • LOT 201.07 Rx Makeup System*
    • *

What happens during the different level setpoints in the RMWST?

A
  • 97%:*
  • *Tank Overfills**
  • 92.8%:*
  • *Close DWS Makeup Valve (LV-7651)**
  • 57.3%:*
  • *Open DWS Makeup Valve (LV-7651)**
  • 54%:*
  • *Closes Non-Essential Isolation Valves (FV-7659/FV-7663)**
  • *Closes Sample Valve (FV-7664)**
  • *Level - Low Alarm**
  • 5.6%:*
  • *Trips Rx Makeup Pumps**

CP004 Alarms:

  • Level - High 2 Alarm (96.4%)
  • Level - High Alarm (94.7%)
  • Level - Low Alarm (54%)
  • Level - Low 2 Alarm (6%)
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6
Q
  • LOT 201.07 Rx Makeup System*
    • *

What does the RMWST supply water to?

A
  • *RCS**
  • *CCW Surge Tank**
  • Alternate*
  • *SFP**
  • Makeup for evaporation*
  • *RWST**
  • Blended flow of boric acid and RMWST*
  • *BRS Cond Demin**
  • RMWST Purification*
  • *BA Batching Tank**
  • *PRT**
  • Feed and Bleed (Alternate)*
  • *RCP seal leak off stand pipes**
  • *BTRS Demineralizers**
  • Demin Flushing*
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7
Q
  • LOT 201.07 Rx Makeup System*
    • *

What are the Boration thumb rules?

A

DBW = 10 pcm/ppm

10 gals of boron/ppm

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8
Q
  • LOT 201.07 Rx Makeup System*
    • *

What powers the RMW pumps, BAT pumps, and CCPs?

A
  • RMW Pump A:*
  • *MCC E1C2**
  • RMW Pump B:*
  • *MCC E1B4**
  • BAT Pump A:*
  • *MCC E1C4**
  • BAT Pump B:*
  • *MCC E1A4**
  • CCP A:*
  • *E1C**
  • CCP B:*
  • *E1A**

C-B-C-A-C-A (2444)

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9
Q
  • LOT 201.07 Rx Makeup System*
    • *

How do you calculate the boron blender potentiometer setting?

A

FK-0110 Setpoint

20 x Boron Concentration of RCS/Boric Concentration of BAT

Controller set up for 0-10 setting. Correlates to 0-100 gpm. (5 setting is 50 gpm)

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10
Q
  • LOT 201.07 Rx Makeup System*
    • *

What plant conditions require emergency boration?

A

Loss of SDM

Reactivity excursion that normal means cannot handle

CRDM below insertion limits

> 1 Control not inserting on Rx Trip

Loss of DRPI after Rx Trip

ATWS

QDPS S/D Monitor Alarm

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11
Q
  • LOT 201.07 Rx Makeup System*
    • *

What will make the makeup stop valves (FCV-0110B/FCV-0111B) auto close?

A
  • Total Makeup Flow Deviation:*
  • *± 15 gpm [15 sec TC]**
  • BA Flow to Blender Deviation:*
  • *± 2 gpm [15 sec TC]**
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12
Q
  • LOT 201.07 Rx Makeup System*
    • *

How long will it take to go from 100% RTP to 1% RTP with 1 BAT pump and no rod motion?

A

< 90 mins

In an additional 90 mins, enough boric acid can be injected to compensate for Xe decay.

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13
Q
  • LOT 201.07 Rx Makeup System*
    • *

What will auto close the boric acid purification loop isolation valves? (FV-8400A/B)

A

BAT Tank Level - Low (29,584 gal) [1/1 on 1/2]

Level Recorder located on CP018.

Control switches for FV-8400A/B located on CP004.

  • Note:*
  • This is the only BAT tank level actuation. The BAT pumps will NOT trip on a low level actuation.*
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14
Q
  • LOT 201.07 Rx Makeup System*
    • *

What will auto close the RMW non-essential service isolation valves? (FV-7663/FV-7659)

A
  • *SI**
  • SI Train “B” (FV-7663)*
  • SI Train “C” (FV-7659)*

RMWST Level (54%)

RMWST Level (54%) will also isolate the RMWST sample line (FV-7664). (SI will not)

  • Note:*
  • Makeup to CCW surge tank and SFP will NOT be secured.*
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15
Q
  • LOT 201.07 Rx Makeup System*
    • *

What is the useable capacity of the RMWST?

A

153,050 gal

Actual Capacity: 160,000 gal

  • Note:*
  • Level indication on CP004. (Tank overfills at 97%)*
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16
Q
  • LOT 201.07 Rx Makeup System*
    • *

What will auto start/stop the RMW pumps?

A

Auto Start:
VCT Level (28%)
200 gpm blend flow (RMWST/BAT)
Manual / Dilute / Alt Dilute Initiated
Manual: 200 gpm blend flow (RMWST/BAT)
Dilute / Alt Dilute: Flowrate (User Defined 0-300 gpm)

  • Trip:*
  • *RMWST Level (5.6%)**

Makeup will secure at VCT Level (48%) but operator must secure RMW pump.

Systems Test 3 (17 decks)

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