EOP-1 Primary Actions Flashcards

1
Q

What is the first box, its actions and RNO actions for EOP-1 primary side?

A

REACTIVITY CONTROL

On reactor trip:

  • Verify via matrix lights, power lowering & negative startup rate.

If not tripped, then:

  • Trip at C-02, C-06 or Toggles to Off.

Verify all full length control rods inserted via ppc page 410 and matrix lights.

  • If more than 1 rod out, then emergency borate.

Announce reactor trip, time, full length control rods and contingencies.

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2
Q

What is the second box, its actions and RNO actions on EOP-1 for the primary side?

A

PCP SEAL COOLING

Verify at least one CCW pump operating via lights/Hdr Pressure

  • No pumps, less than 10 minutes and Surge Tank >47%, Start a CCW pump

Verify at least two SW pumps operatoring via lights/Hdr Pressure

  • No pumps, less than 10 minutes, Start available SW pumps

Verify greater than 42 psi on both Critical SW Hdrs.

  • If less than 42 psi, start SW pumps
    • If no SIAS, close CAC HI CAPS as necessary to raise pressure.
    • If CAC HI CAPS closed & less than 42 psi, close CV-1359

PCP seal cooling adequate by CCW and SW criteria met plus verify CV-0910, CV-0911 and CV-0940 OPEN

  • If PCP seal cooling not adequate
    • Trip PCPs at C-02 or open 252-102/202 A/B incoming on C-04
    • Close CV-2083, CV-2191, CV-2099.
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3
Q

What is the third box, its actions and RNO actions for EOP-1 Primary?

A

PCS INVENTROY CONTROL

Is PZR Level 20 - 85% and trending 42 - 57%

  • Operate PLCS and Manually Operate Charging and Letdown

Subcooling Check (no actions)

  • With PCP then use SMM
  • Without PCP then use CETS

USE PPC TRIP PAGE AND 11-2. Adjust Level parameters to 20%.

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4
Q

What are the actions and RNO actions for the 4th box on EOP-1 Primary?

A

CORE HEAT REMOVAL

Check/Record

  • At least one PCP operating
  • Loop Delta-T < 10F
    • Use loop temps for 1 & 2 if faulted SG
  • Subcooling of at least 25F
    • If a PCP operating, record SMM subcooling at least 25F
    • If no PCP operating, record CET subcooling at least 25F
    • Monitor for time less than 25F subcooled (EI Plan)
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5
Q

What are the actions and RNO actions of the 5th box on EOP-1 Primary?

A

CONTAINMENT ISOLATION

Verify Containment Pressure < 0.85 psig via PIA-1814 and PIA-1815

If >= 4.0 psig, THEN:

  • Verify EK-1126, “CIS INITIATED” or puse LEFT and RIGHT “High Radiation Initiate” Pushbuttons.
  • Ensure Closed MSIVs, MFRVs, Bypass FRV and CCW Iso valves
  • Verify EK-1342 “SAFETY INJ INITIATED” or push “Initiate” pushbuttons
  • Ensure available HPSI and LPSI pumps operating with loop isolation valves open.
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6
Q

What are the actions and RNO actions for the 6th box of EOP-1 Primary?

A

CONTAINMENT ATMOSPHERE

Check Containment Temp < 125, if not THEN

  • Ensure all available CAC fans running
  • OPEN CAC HI CAPS as capacity permits

Check Containment Pressure < 0.85 psig via PIA-1814/1815, if not THEN,

Ensure all available CAC fans running

OPEN CAC HI CAPS as capacity permits

If >= 4.0 lbs, then:

  • ENSURE OPERATING all available CAC ‘A’ Recirc Fans
  • ENSURE OPEN all available containment spray valves
  • ENSURE OPERATING all available spray pumps with at least 1425 gpm flow in each spray header
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7
Q

What are the last two check and RNO actions on the EOP-1 Primary card?

A

MVAA

Verify Instrument air > 85 psig

RNO: START available Instrument Air Compressors or cross-tie FWP air.

MVAW

Verify SIRWT > 25%

RNO: PERFORM preand/or post-RAS actions as required per EOP- Supplement 42.

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8
Q

How would AOP-8, loss of C bus, impact EOP-1 Primary card actions/RNO?

A

Loss of C bus results in a loss of:

  • P-7B, standby SW pumps should start - verify and take action per AOP.
  • C-2A/C via LCC-11, standby C-2B should start, verify and take action per AOP.
  • P-52A/C, standby P-52B should start, verify and take action per AOP.
  • P-55C not available, P-55A/B operating as needed.

BOTTOM LINE:

P-7B, C-2A/C, P-52A/C and P-55C not available.

  • Impacts to SW, Instrument Air, CCW and Charging

Left Channel/HPSI Train 1 Loop Injection Valves not available:

  • MO-3007, 3009, 3011 and 3013

Left Channel/LPSI Loop Injection Valves not available

  • MO-3008 and MO-3010.
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9
Q

How does AOP-9, loss of D bus, impact EOP-1 Primary?

A

On loss of D bus the following go away:

  • P-7A/C, P-7B should auto start. Low hdr pressure/close isolations per AOP
  • C-2B, C-2A/C should auto start.
  • P-52B, P-52A/C should auto start.
  • P-55A/B, P-55C should start as needed.
    • Close CV-2003, 2004 & 2005. Charging via P-55C is 40 gpm.
    • Letdown and PCP is 44 gpm.
  • CRDM control power gone. Rods trippable but immovable.

Bottom Line for EOP-1 Primary:

  • SW to containment may be isolated. No CACs
  • Minimal charging post trip. Pressurizer level will take time to recover. No heaters.
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10
Q

How does AOP-10, loss of E bus, impact EOP-1 Primary Card?

A

Loss of E bus results in loss of pressurizer heaters.

On trip, D bus heaters will not re-energize.

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11
Q

How does AOP-11, loss of 480 volt buses, impact EOP-1 Primary?

A

Loss of LCC-11 you lose:

  • C-2A/C, C-2B should auto start.
  • V-4A, Required V-1A, V-2A and V-3A should be running.
  • P-55C, P-55A/B are available.

Loss of LCC-12 you lose:

  • C-2B, C-2A/C should auto start at 92 psig.
  • V-1A, V-2A, V-3A. Only V-4A for non-required CAC operable.
  • P-55A/B, P-55C operating. Isolate letdown for mismatch.

Loss of LCC-13

  • V-49B CRDM Cooling Fan Lost, high leakoff temp alarms.
  • M-2, Instrument Air Dryer
    • EK-1102, Instrument Air Low Pressure could be switching issue. Bypass air dryer.

Loss of MCC-1

  • B Boric Acid Pump Lost
  • P-77B Shield Cooling Pump Lost

Loss of MCC-2

  • CRDM control power
  • A Boric Acid Pump Lost
  • P-77A Shield Cooling Pump Lost
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12
Q

How does AOP-12, Loss of Y-10, impact EOP-1 Primary?

A

Loop 1 Tave fails low, ‘A’ Level/Pressure controller output zero.

  • ‘A’ Level Controller in service - max charging, min letdown
  • ‘B’ Level Controller in service - max letdown, min charging
  • Swap to Loop-2. Swap to B Level and B Pressure controller, Swap heaters to B only
  • Manual operation until AOP-12 step to place in cascade.

Left Channel CIAS valves will not close on CHP.

Left Channel Equipment will not actuate automatically.

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13
Q

How does AOP-13, Loss of Y-20, impact EOP-1 Primary Card?

A

Tave Loop-2 fails low, ‘B’ level and pressure controller have zero output

  • Swap Tave to Loop-1
  • Swap to ‘A’ Level Controller
  • Swap to ‘A’ only on Heater Controller
  • Swap to ‘A’ Pressure Controller
  • Operate in Manual until AOP direction for cascade
    • Level slide bar to zero output on both.

Right Channel SIAS equipment will be manual initiation

P-54A will be manual start on CHP

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14
Q

How does AOP-14, Loss of Y-30, impact EOP-1 Primary Card?

A

Left Channel SIAS will require manual equipment starts

P-54B/C will need to be manualy started on CHP.

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15
Q

How does AOP-15, Loss of Y-40, impact EOP-1 Primary Card?

A

On CHP

  • Right Channel SIS initiate pushbutton will need to be pressed
  • Open CV-3002
  • Start P-54A
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16
Q

How does AOP-16, Loss of Y-01, impact EOP-1 Primary Card?

A

Control Rod Matrix Lights go away

Control Rod LEDs go away

  • Use PPC, Power Indications for trip

CV-2001, Letdown Stop Closes

Route PCP bleedoff to Primary System Drain Tank

17
Q

How does AOP-17, Loss of 125v DC, impact EOP-1 Primary Card?

A