NL-11-065, 3-ECA-0.0, Rev. 5, Loss of All AC Power.

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3-ECA-0.0, Rev. 5, Loss of All AC Power.
ML11158A121
Person / Time
Site: Indian Point  Entergy icon.png
Issue date: 05/04/2011
From:
Entergy Nuclear Northeast
To:
Office of Nuclear Reactor Regulation
References
NL-11-065 3-ECA-0.0, Rev 5
Download: ML11158A121 (54)
v • d • e


Text

Procedure Use Control Copy:

Entergy El Continuous Nuclear Northeast 0 Reference Effective Date: 5/_/_-__ / (

[3 Information Approved By:

Co Procedure Sponsor, Team P Procedure Owner EDITORIAL REVISION

A. PURPOSE This procedure provides actions to respond to a loss of all AC power to plant 480V AC Safeguards Buses:

  • 480V Buses 2A and/or 3A AND

" 480V Bus 5A AND

  • 480V Bus 6A B. ENTRY CONDITIONS This procedure is entered from:
1. Loss of all plant 480V AC Safeguards Buses.
2. 3-E-0. REACTOR TRIP OR SAFETY INJECTION, Step 3, on the indication that all 480V AC Safeguards Buses are deenergized.

Page I of 53

NOTE

  • CSF Status frees should be monitored for information only. FRPs should NOT be implemented.

a Normal communication channels may be unavailable without AC power. Radios should be used by watch personnel outside the Control Room.

1. VERIFY Reactor Trip; PERFORM the following:

breakers - OPEN

b. IF Reactor will NOT trip, e Neutron flux - DECREASING THEN PERFORM the following:
1) INSERT control rods in auto or manual while continuing performance of this procedure.
2) DISPATCH NPO to trip reactor in accordance with posted operator aid.

Page 2 of 53

STEP ACTION/EXPECTED RESPONSE RESPONSE NOT OBTAINEDI

2. ISOLATE Main Steam:
a. Manually CLOSE all MSIVs a. PERFORM the following:
1) VERIFY all turbine stop valves are closed.
2) DISPATCH NPO to close MSIVs per 3-SOP-ESP-O01.
b. CHECK MSIV bypass valves - b. DISPATCH NPO to close all CLOSED MSIV bypass valves, if required.

Page 3 of 53

STE E REPOS ICINEP RESPONSE NOT OBTAINEI

3. DETERMINE If RCS Is Isolated:
a. CLOSE letdown isolation valves:
  • 459
  • 460
  • 200 A-C
b. CHECK PRZR PORVs - CLOSED b. PERFORM the following:
1) IF PRZR pressure less than 2335 psig, THEN manually CLOSE PORVs.
2) IF any PORV can NOT be closed, THEN manually CLOSE its block valve.
c. CHECK Excess Letdown Stop c. Manually CLOSE valves.

valves - CLOSED

" CH-AOV-213A

" CH-AOV-213B

d. CHECK Resid HR Lp Bypass To Demin - CLOSED
e. CLOSE Sample Isol Valves:

" SP-AOV-956A,C,E,G

" SP-AOV-,956B,D,F,H

f. SECURE any radwaste release in progress Page 4 of 53

STE *EPO *O ******

  • CINEPCE * * * * **** REPOS * * ** * *
  • 4.
  • MAINTAIN SG Levels Using *
  • Turbine-Driven AFW PumD: *
  • a. PERFORM the following: *
a. CHECK 32 AFW pump - RUNNING
  • 1) ENSURE PCV-1139, 1310A, *
  • and 1310B are open. *
  • 2) IF valves cannot be
  • opened, THEN DISPATCH NPO to operate 32 AFW *
  • pump per 3-SOP-ESP-0O1. *
b. MAINTAIN 32 AFW pump *
  • discharge pressure greater
  • than or equal to 150 psi
  • above highest SG pressure
  • ADJUST HC 1118, ABFP Turb
  • Speed Control (STEP 4 CONTINUED ON NEXT PAGE)

Page 5 of 53

(Step 4 continued from previous page)

  • c. CHECK SG NR levels ANY c. PERFORM the following: *
  • GREATER THAN 9% [14%] *
  • 1) MAINTAIN total feed *
  • greater than 365 gpm *
  • until at least one SG NR *
  • level is greater than *
  • 9% [14%]. *
  • . Preferentially RESTORE *
  • level first to 32 OR *
  • 2) IF unable to maintain *
  • greater than 365 gpm *
  • total feed, THEN VERIFY *
  • required AFW valve *
  • alignment: *
  • e IF necessary, DISPATCH
  • NPO to locally operate *
  • valve(s) per *
  • 3-SOP-ESP-O01. *
  • d. CONTROL feed flow to *
  • maintain SG NR levels *
  • between 9% [14%] AND 50% *
  • & Preferentially RESTORE *
  • level first to 32 OR 33 SG *
  • ESTABLISH level in one SG *
  • at a time and MAINTAIN *
  • feedflow to all other SGs *
  • at less than or equal to *
  • 100 gpm
  • Page 6 of 53

CAUTION

  • AN ESSENTIAL SERVICE WATER PUMP SHOULD BE KEPT AVAILABLE TO AUTOMATICALLY LOAD ON ITS 480V AC BUS "TO PROVIDE DIESEL GENERATOR COOLING.
  • HIGH VCT TEMPERATURE, AS INDICATED ON SEAL WATER RETURN TI-117.

MAY CAUSE VAPOR BINDING WHEN CHARGING PUMP IS STARTED.

5. DETERMINE Status Of 480V Buses 2A And 3A:
a. CHECK 480V Buses 2A and 3A a. GO To Step 6.

- EITHER ENERGIZED

b. ATTEMPT to close 480V Bus No. 2A-3A Tie
c. CHECK 480V Bus 2A - c. GO To Step 5.e.

ENERGIZED

d. CHECK the following d. START equipment:

equipment - RUNNING

  • 32 CCWP
  • 32 SWP only if essential.
e. CHECK 480V Bus 3A - e. GO To Step 6.

ENERGIZED (STEP 5 CONTINUED ON NEXT PAGE)

Page 7 of 53

(Step 5 continued from previous page)

f. CHECK the following f. START equipment:

equipment - RUNNING

  • 32 Charging Pump
  • 32 Charging Pump
  • 35 SWP only if essential.
g. INCREASE 32 charging pump speed to maximum
h. VERIFY CCW flow to running h. DISPATCH NPO to align city charging pump(s) water to 32 charging pump per 3-SOP-ESP-O01.
i. WHEN cooling is established, THEN CONTROL 32 charging pump speed as directed by CRS or SM Page 8 of 53

CAUTION USE EXTREME CAUTION WHENEVER ATTEMPTING AC POWER RESTORATION FROM MULTIPLE SOURCES SIMULTANEOUSLY.

NOTE IP2 Appendix R Diesel is NOT equivalent to "offsite" power and should ONLY be used as instructed in Step 6.d RNO.

6. TRY To Restore Power To Any 480V AC Safeauards Bus:
a. DISPATCH NPO to emergency start all EDGs and energize any 480V Bus per 3-SOP-.EL.-OO1
b. CONTACT and INFORM Con Ed D.O. of urgent need for AC power
c. ATTEMPT to energize any 480V AC Bus using any of the following:

e EDG(s) per 3-SOP-EL-O01

  • Offsite power per 3-SOP-EL-O05 (STEP 6 CONTINUED ON NEXT PAGE)

Page 9 of 53

(Step 6 continued from previous page)

d. CHECK 480V AC Safeguards d. PERFORM the following:

Buses - ANY ENERGIZED

1) CONTINUE attempt to
  • 480V Buses 2A and 3A energize any 480V AC Bus from EDGs or oFfsite OR power.

e 480V Bus 5A 2) DISPATCH NPO to start IP3 Appendix "R" Diesel OR per 3-SOP-EL .013.

  • 480V Bus 6A 3) IF IP3 Appendix "R" Diesel is NOT available, THEN CONTACT IP2 CCR to START IP2 Appendix "R" Diesel per 2-SOP-27.6, UNIT 2 APPENDIX R DIESEL GENERATOR OPERATION.
4) WHEN either Appendix "R" Diesel is running, THEN ATTEMPT to energize any 480V Bus per 3-SOP-EL-014, ENERGIZATION OF THE 480V BUSES FROM THE APPENDIX R DIESEL GENERATOR:

" RESET trouble alarm as required.

" DO NOT load bus(es) per 3-SOP-EL.-014, ENERGIZATION OF THE 480V BUSES FROM THE APPENDIX R DIESEL GENERATOR until directed by EOPs.

5) GO To Step 7.

(STEP 6 CONTINUED ON NIEXTPACE)

Page 10 of 53

(Step 6 continued from previous page)

e. VERIFY at least two ESW e. PERFORM the following:

pumps - RUNNING

1) START ESW or Backup SW pump(s).
2) IF two SW pumps can NOT be started on essential header, THEN INITIATE ATTACHMENT 1. ESSENTIAL SERVICE WATER ALIGNMENT, Page 39.
f. CHECK 3-ECA-O.O, LOSS OF f. RETURN To Procedure and ALL AC POWER - ENTERED Step in effect AND DIRECTLY IMPLEMENT FRPs.
g. GO To 3-E-O, REACTOR TRIP OR SAFETY INJECTION, Step 4 AND IMPLEMENT FRPs.

NOTE ATTACHMENT 2, PREVENTING OVERHEATING OF EQUIPMENT AND INSTRUMENTATION, Page 46 must be completed within 30 minutes from the loss of all AC power event.

7. PERFORM ATTACHMENT 2.

PREVENTING OVERHEATING OF EQUIPMENT AND INSTRUMENTATION, Page 46 Page 11 of 53

STEP ACTION/EXPECTED RESPONSE I F RESPONSE NOT OBTAINED I

CAUTION 0 WHEN POWER IS RESTORED TO ANY 480V SAFEGUARDS BUS, RECOVERY ACTIONS SHOULD CONTINUE STARTING WITH Step 29, Page 32.

  • DO NOT PLACE EQUIPMENT POWERED FROM AN ENERGIZED BUS IN TPO.
  • IF AN SI SIGNAL EXISTS OR IF AN SI SIGNAL IS ACTUATED DURING THIS PROCEDURE, IT SHOULD BE RESET ro PERMIT MANUAL LOADING OF EQUIPMENT ON A 480V AC BUS PER Step 20, Page 22.
8. PLACE Control Switches For The Followinq EauiDment On Oeenernized Buses In TRIP PULLOUT I OFF:

" PRZR heaters

" Containment Spray pumps

" FCUs

" Motor-driven AFW pumps

" RHR pumps

  • CCW pumps Page 12 of 53
9. DETERMINE Status Of RCP Seals:
a. DETERMINE if RCP seal cooling should be isolated:
1) CHECK RCP seal cooling - 1) GO To Step 9.b.

ESTABLISHED

" Seal Injection OR

" Thermal Barrier Cooling

2) DISPATCH NPO to perform the following:
  • CLOSE CH-MOV-222, Seal Water Return Isolation Val ve
3) GO To Step 10
b. DISPATCH NPO to perform the fol lowing:
1) CLOSE the following valves:
  • FCV-625, CCW Return From RCP Thermal Barrier
  • RCP Seal Injection (needle) Valves:

" CH-241A

" CH-241B

" CH-241C

" CII-241D Page 13 of 53

STE ACTION/EXPECTE REPOS REPOS NOT.O.TAINED

10. CHECK CST To Hotwell Isolation DISPATCH NPO to perform the Valve Status: fol lowing:
  • LCV 11.58-I Valve Fully CLOSED a. CLOSE either valve by isolating and bleeding off OR air supply.
  • LCV 1158-2 Valve Fully CLOSED b. IF ONE valve can NOT be closed. THEN CLOSE the fol lowing:

" CT-7-2, CST To Condenser Hotwells Makeup CD-LCV-1128 Inlet Isolation

" Cf--8, (if opened)

11. CHECK SG Status:
a. CHECK Main and Bypass FW a. PERFORM the following:

FRVs - CLOSED

1) Manually close valves.
2) IF unable to close valves. THEN DISPATCH NPO to close manual isolation valves.
b. CHECK SG blowdown: b. Manually CLOSE valve(s).

e SG blowdown isolation valves - CLOSED e SG sample isolation valves - CLOSED Page 14 of 53

12. DISPATCH NPO To Open Condenser Vacuum Breaker Isolation Valves:

0 CA- 15-1 6 CA-15-2 0 CA-15-3

13. DETERMINE If SG(s) Are Intact:
a. DETERMINE if any SG is a. GO To Step 14.

faulted:

" NO SG pressure decreasing in an uncontrolled manner

" NO SG completely depressurized

b. DETERMINE if any SG tubes b. GO To Step 14.

are ruptured:

" Condenser air ejector radiation recorder trends

- NORMAL

" SG blowdown radiation recorder trends - NORMAL

" Main steam line radiation recorder trends - NORMAL

" CHECK level response in all intact SGs - NORMAL

c. GO To Step 15, Page 17 Page 15 of 53

CAUTION A FAULTED OR RUPTURED SG THAT IS ISOLATED SHOULD REMAIN ISOLATED.

STEAM SUPPLY TO 32 AFW PUMP MUST BE MAINTAINED FROM AT LEAST ONE SG.

14. ISOLATE Affected SG(s):
a. ISOLATE AFW flow to a. IF unable to close affected SG(s): valve(s), THEN DISPATCH NPO to close isolation valve for affected S/G Aux FW Reg valve(s).
b. ADJUST affected SG(s) atmospheric controller to maintain 1040 psig
c. CHECK affected S/G Atmos c. WHEN affected SG pressure Steam Dump - CLOSED is less than 1040 psig, THEN CLOSE valve manually or locally.
d. DETERMINE if steam supply to 32 AEW pump should Dbe isolated:
1) CHECK SG 32 or 33 1) GO To Step 15.

AFFEECT ED

2) DISPATCH NPO to close affected SG steam supply to 32 AFW pump:
  • 33 SG - MS-42 Page 16 of 53

STE**************** REPOS RESPONSE**NOT *********

  • 15.
  • CHECK Intact SG Levels: * *
  • a. MAINTAIN maximum AFW flow *
a. CHECK SG NR levels ANY
  • until at least one SG NR
  • GREATER THAN 9% [14%]
  • level is greater than *
  • 9% [14%]. *
  • Preferentially feed SG 32
  • or 33
  • b. CONTROL feed flow to b. IF any SG NR level *
  • maintain SG NR level
  • continues to increase in an
  • between 9% [14%] AND 50% uncontrolled manner, THEN
  • RETURN To Step 14, Page 16,
  • " Preferentially RESTORE to isolate ruptured SG(s). *
  • level first to 32 OR 33 SG A.
  • " ESTABLISH level in one SG *
  • at a time and MAINTAIN *
  • feedflow to all other SGs *
  • at less than or equal to
  • 100 gpm Page 17 of 53
  • 16.
  • DETERMINE If Intact SGs Should *
  • Be Depressurized: *
a. CHECK plant conditions: a. GO To Step 17.
1) RCP seal cooling -

ESTABLISHED

  • Seal Injection OR
  • " Thermal Barrier Cooling *
  • 2) PRZR level - GREATER
  • THAN 14% [32%]
3) RVLIS - GREATER THAN REQUIRED FROM TABLE NO. OF RVLIS RVLIS
  • RCPs DYNAMIC FULL RUNNING RANGE RANGE 0 - 92%

1 31%

2 42%

3 62%

4

  • 4 93%
4) RCS subcooling - GREATER THAN 40°F [Table]

>1900 psig [ 630F]

>1000 psig [ 780F]

  • 1000 psig [1120F]
  • b. GO To Step 19, Page 22
  • Page 18 of 53
17. DETERMINE If 32 HHSI Pump Should Be Used:
a. CHECK 480V Bus 2A - a. GO To Step 18.

ENERGIZED

b. DISPATCH NPO to align 32 HHSI pump to non-BIT header:
1) CLOSE SI-MOV-851B, 32 Safety Injection Pump Discharge BIT Header Isolation
2) ENSURE SI-MOV-851A, 32 Safety Injection Pump Discharge Non BIT Header Isolation is open
c. START 32 HHSI pump Page 19 of 53

CAUTION a SG PRESSURES SHOULD NOT BE DECREASED TO LESS THAN 175 PSIG TO PREVENT INJECTION OF ACCUMULATOR NITROGEN INTO THE RCS.

& SG NARROW RANGE LEVEL SHOULD BE MAINTAINED GREATER THAN 9% [14%]

IN AT LEAST ONE INTACT SG. IF LEVEL CAN NOT BE MAINTAINED, THEN SG DEPRESSURIZATION SHOULD BE STOPPED UNTIL LEVEL IS RESTORED IN AT LEAST ONE SG.

NOTE

  • The SGs should be depressurized at a rate sufficient to maintain a cooldown rate in the RCS cold legs near 100OF per hour. This will minimize RCS inventory loss while cooling the RCP seals in a controlled manner.

0 PRZR level may be lost and Reactor vessel upper head voiding may occur due to depressurization of SGs. Depressurization should NOT be stopped to prevent these occurrences.

18. DEPRESSURIZE Intact SGs To 275 PSIG:
a. CHECK SG NR levels - ANY a. PERFORM the following:

GREATER THAN 9% [14%]

1) MAINTAIN maximum AFW flow until at least one SG NR level is greater than 9% [14%].
2) WHEN any SG NR level is greater than 9% [14%]

THEN PERFORM Step 18.b through Step 18.f.

3) GO To Step 1.9.

(STEP 18 CONTINUED ON NEXT PAGE)

Page 20 of 53

(Step 18 continued from previous page)

b. Manually DUMP steam using b. DISPATCH NPO to dump steam SG atmospherics to MAINTAIN using SG atmospherics per cooldown rate in RCS cold 3-SOP-ESP-O01.

legs - LESS THAN 100°F/HR

c. WHEN the LO[-PRESS PRESSURE BLOCK SI permissive lite illuminates. THEN Momentarily PLACE Both PRZR Low Pressure SI Block Switches To BLOCK (Panel SBF-2)

" SI Start-Up Block Train A

" SI Start-Up Block Train B

d. CHECK RCS cold leg d. PERFORM the following:

temperatures - GREATER THAN 3201 F 1) STOP SG depressurization.

2) GO To Step 19.
e. CHECK SG pressures - LESS e. PERFORM the following:

THAN 275 PSIG

1) WHEN SG pressure is less than 275 psig, THEN PERFORM Step 18.f.
2) GO To Step 19.
f. CONTROL SG atmospherics to f. DIRECT NPO to maintain SG maintain SG pressures at pressures at 275 psig using 275 psig atmospherics per 3-SOP-ESP-O01.

Page 21 of 53

STEP ACTON/XPETED ESPNSERESONSENOTOBTINE

19. CHECK Reactor Subcritical: CONTROL SG atmospherics to stop SG depressurization and

" Intermediate Range startup ALLOW RCS heatup.

rate channels -

Zero or Negative

" Source Range startup rate channels - 0 or Negative NOTE Depressurization of SGs may result in SI actuation. SI should be reset to permit manual loading of equipment on 480V AC bus.

  • 20.
  • CHECK SI Signal Status: * *
  • a. CHECK SI - HAS BEEN ACTUATED *
a. PERFORM the following:
1) WHEN SI actuates, THEN
  • PERFORM Step 20.b,
  • through Step 24, Page 27.
2) GO To Step 25, Page 27.

(STEP 20 CONTINUED ON NEXT PACE)

Page 22 of 53

(Step 20 continued from previous page)

  • b. CHECK verification of SI b. PERFORM the following:

automatic actions, Steps 2

  • through 12 of 3-RO-1. BOP 1) VERIFY the following *
  • control switches are in
  • OPERATOR ACTIONS DURING USE
  • OF EOPS - COMPLETE SI positions: *
  • Valves 1104 AND 1105
  • Control Room A/C to *
  • 10% incident mode *
  • 2) DISPATCH NPO to SET the
  • switches for SWN-FCV-1176 AND
  • SWN-FCV-1176A to OPEN. *
c. PRESS both SI reset buttons on panel SBF-2:
  • Train I SI Reset
  • e Train 2 SI Reset *

(STEP 20 CONTINUED ON NEXT PAGE)

Page 23 of 53

STEP ACTION/EXPECTED RESPONSE RESPONSE NOT OBTAINED (Step 20 continued from previous page)

  • d. CHECK SI - RESET d. PERFORM the following: *
  • . Sf ACTUATED light 1) PLACE SI block key *
  • EXTINGUISHED switches to DEFEAT *
  • (SBF-2): *
  • Manual Defeat SI *
  • Train A *
  • Manual Defeat SI *
  • Train B *
  • 2) PRESS pin resets on the *
  • following SI relays: *
  • . Logic Cabinet G-3: *
  • e SI-1, SI Train A *
  • Relay (Grid A-i) *
  • . SI-li, SI Train A *
  • Relay (Grid A-2)
  • . Logic Cabinet G-5: *
  • SI-2, SI Train B *
  • Relay (Grid A-i) *
  • e SI-12, SI Train B *
  • Relay (Grid A-2)
  • Page 24 of 53
21. CHECK Containment Isolation Phase A:
a. CHECK Phase A - ACTUATED a. Manually ACTUATE Phase A.
b. CHECK Phase A Valves - b. PERFORM the following:

CLOSED

1) Manually CLOSE valve(s).
  • REFER To ATTACHMENT 3.

PHASE A VALVE CLOSURE LIST 2) IF unable to close valve(s). 1MffN DISPATCH NPO to close valve(s).

22. CHECK Containment Isolation Valve Seal Water Status:
a. CHECK Auto IVSW valves - a. Manually OPEN valves.

OPEN IV-AOV-1410 S IV-AOV-1413 0 IV-AOV-6200 0 IV-AOV-6201 Page 25 of 53

23E iRESPONSE ACTION/EXPECTED RESPONtE NOT OBTA

23. VERIFY Containment Ventilation Isolation:
a. CHECK purge valves - CLOSED a. PERFORM THE following:

" FCV-1170 1) PLACE the following

" FCV-1171 control switches to

" FCV-1172 CLOSE: (Panel SNF)

" FCV-1173

" VS-FCV-1170, 72 Cont Bldg Purge Valves

" VS-FCV-1171, 73 Cont Bldg Purge Valves

2) IF unable to close valve(s), THEN DISPATCH NPO to set purge valve control switches to CLOSE.
b. CHECK pressure relief b. PERFORM THE following:

valves - CLOSED

1) PLACE the -following

" PCV--1190 control switches to

" PCV-1191 CLOSE: (Panel SNF)

" PCV-1192

  • VS-PCV-1190. Cont Bldg Press Relief Val ve (Inside)
  • VS-PCV-1191, 92, Cont Bldg Press Relief Valves (Outside)
2) IF unable to close valve(s), THEN DISPATCH NPO to set prssure relief valve control switches to CLOSE.
c. CHECK WCCPP low pressure c. DISPATCH NPO to check Zone Alarms - NOT LIT Station Air makeup and N2 backup to WCCPP for affected Zone.

Page 26 of 53

STEPACTION/EXPECTED RESPONSE. RESPONSE NOT OBTAINED

24. CHECK Containment Pressure - PERFORM the following:

HAS REMAINED LESS THAN 22 PSIG

a. DETERMINE if containment spray signal actuated:

e OSPDS

b. IF containment spray signal has NOT been actuated, THEN manually PRESS both Cont.

Spray C.I. Phase B buttons on panel SBF-I.

c. DISPATCH NPO to ensure the following valves are closed:

" AC-FCV-625, RCP Thermal Barrier CCW Return

" AC-MOV-789. RCP Thermal Barrier CCW Return

" AC-MOV-797, RCP CCW Supply

" AC-MOV-784, RCP CCW Bearing Return Isolation

" AC-MOV-786, RCP CCW Bearing Return Isolation

d. PRESS both Cont Spray Reset pushbuttons on panel SBF-1.
25. CHECK Core Exit TCs - LESS IF core exit temperatures are THAN 1200F greater than 1200OF AND increasing, THEN GO To SACRG-I, Severe Accident Control Room Guideline Initial Response.

Page 27 of 53

. ACTION/EXPECTED RESPONSE RESPONSE NOT OBTAII

26. DETERMINE If 480V Safeguards Power Is Restored:
a. Check 480V AC SAFEGUARDS a. GO To Step 27, Page 29.

buses - ANY ENERGIZED

" 480V Buses 2A and 3A OR

" 480V Bus 5A OR

" 480V Bus 6A

b. GO To Step 29, Page 32 Page 28 of 53

STEP ACTION/EXPECTED RESPONSE RESPONSE NOT OBTAINED

27. CONTINUE To Control RCS Conditions And MONITOR Plant Status:
a. CHECK status of local actions:

" AC power restoration

" RCP seal isolation

b. Check BORIC ACID TANK LOW b. Refer to 3-ARP-009 for TEMP alarm on panel SFF - Panel SFF as time permits.

CLEAR

c. CHECK SPENT FUEL PIT LEVEL c. PERFORM the following:

alarm on panel SKF - CLEAR

1) DISPATCH NPO to monitor level.
2) INITIATE makeup to the spent fuel pit per 3-SOP-SFP-O01.

Page 29 of 53

STP ACTION/EXPECTED RESPONSE RESPONSE NOT OBTAINED

28. Determine if MCC-312A should be used:
a. INSPECT 480V safeguards buses for damage
b. CHECK 480V safeguards buses b. RETURN To Step 13, Page 15

- NONE CAPABLE OF BEING ENERGIZED

c. CHECK Appendix "R" Diesel - c. DISPATCH NPO to start EP3 RUNNING UNLOADED Appendix 'R" Diesel per 3-SOP-EL-013, APPENDIX R DIESEL GENERATOR OPERATION OR CONTACT IP2 to start IP2 Appendix "R" Diesel per 2-SOP-27.6, UNIT 2 APPENDIX R DIESEL GENERATOR OPERATION.
d. ENERGIZE MCC-312A per ATTACHMENT 4, ENERGIZING MCC-312A FROM BUS 312 OR 313, Page 51 (STEP 28 CONTINUED ON NEXT PAGE)

Page 30 of 53

STEP

'71 ACTION/EXPECTED RESPO..-- FRES7PNSE NOT OBTAINED (Step 28 continued from previous page)

e. CHECK MCC-312A - ENERGIZED e. PERFORM the following:
1) WHEN MCC-312A is energized, THEN START the Following equipment per 3-SOP-EL-012, OPERATION OF THE ALTERNATE SAFE SHUTDOWN EQUIPMENT
  • 38 SW Pump
  • 31 OR 32 Charging Pump
  • 32 PAB Exhaust Fan
2) Return To Step 13, Page 15
f. START the following equipment per 3-SOP-EL-012, OPERATION OF THE ALTERNATE SAFE SHUTDOWN EQUIPMENT
  • 38 SW Pump
  • 31 OR 32 Charging Pump
  • 32 PAB Exhaust Fan
g. Return To Step 13. Page 15 Page 31 of 53
29. STABILIZE SG Pressures:
a. CONTROL SG atmospherics to a. DIRECT NPO to control SG stabilize SG pressures: atmospherics per 3-SOP-ESP-O01.
  • Manual position OR

" Automatic setpoint Page 32 of 53

E ACTION/EXPECTED RESPONSE RESPONSE NOT OBTAINED

30. VERIFY Service Water Sl¥ste!

Operation:

a. CLOSE 1104 and 1105
b. DISPATCH NPO to close the following:

" SWN-6, SWP's 34,35,36 To Conventional Essential Header Discharge Isolation

" SWN-7, SWP's 31,32.33 To Conventional Essential Header Discharge Isolation

c. DISPATCH NPO to close the c. IF unable to close both following: SWN-FCV-1111 and SWN-FCV-1112, THEN DISPATCH
  • SWN-FCV-1111. SWP's NPO to close the following:

34,35,36 To Conventional Non-Essential Header 1) TB , 33 Ft. H2 Coolers Discharge Isolation

  • SWT-24. PCV-1180 &
  • SWN-FCV-1112, SWP's PCV-1180A Bypass 31,32,33 To Conventional Non-Essential Header e SWT-23-1, PCV-1180 Discharge Isolation Inlet Isolation 0 SWT-235-1, PCV-1180A Inlet Isolation
2) TB, 15 Ft, South West Corner (over SGBD HX No.4)
  • SWT-242, Service Water To S/G Blowdown Recovery Hx No. 4 Inlet Isolation
3) TB, 15 Ft, THCC e SWT-18-1. 31 Closed Cooling Hx Inlet Isolation e SWT-18-2, 32 Closed Cooling Hx Inlet Isolation Page 33 of 53

CAUTION THE LOADS PLACED ON THE 480V AC BUSES SHOULD NOT EXCEED THE CAPACITY OF THE POWER SOURCE.

NOTE

" Equipment on 480V buses supplied by Offsite Power or EDGs should be operated as described in 3-SOP-EL-015.

" Equipment on 480V buses supplied by Appendix "R" Diesel should be operated in accordance with 3-SOP-EL-014, ENERGIZATION OF THE 480V BUSES FROM THE APPENDIX R DIESEL GENERATOR.

31. IF 480V buses are being IF Appendix R diesel is supplied by EDGs or Outside supplying the 480V buses, THEN power, INITIATE Loading The GO To Step 35. Page 38 Following Equipment On Energlzed 480Y AC Buses:

" MCCs

" Battery Chargers

" PAB Ventilation

" Instrument air compressor(s)

32. CHECK ESW and Backup SW pumps PERFORM the following:

- AT LEAST 2 RUNNING

a. START ESW or Backup SW pump(s).
b. IF two SW pumps can NOT be started on essential header, THEN INITIATE ATTACHMENT 1, ESSENTIAL SERVICE WATER ALIGNMENT, Page 39.

Page 34 of 53

STP ACTION/EXETDRSPONSE iRESPONSE NOT OBTAINED ..

33. CHECK Component Cooling Water PERFORM the following:

DUMDs For Charqinq Pump Cooling - ANY RUNNING a. OPERATE running charging pump at maximum speed until cooling is established.

b. DISPATCH NPO to align City Water Back-up supply to charging pumps per 3-SOP-ESP-O01, LOCAL OPERATION OF SAFE SHUTDOWN EQUIPMENT.

CAUTION HIGH VCT TEMPERATURE. AS INDICATED ON SEAL WATER RETURN TI-117, MAY CAUSE VAPOR BINDING WHEN CHARGING PUMP IS STARTED.

34. DETERMINE If Charging Flow Has Been Established:
a. CHECK charging pump suction a. PERFORM the following:

valves - BOTH ENERGIZED AND ONE VALVE OPEN 1) OPEN CH-LCV-112B and manually or locally

(STEP 34 CONTINUED ON NEXT PACE)

Page 35 of 53

I IU I ll I

- =-fSTEP (Step 34 continued from previous page)

OR 2) IF unable to open CH-LCV-112B, THEN

a) OPEN CH-288, RWST To Charging Pumps Suction Isolation.

(32 Charging Pump Cell) b) WHEN CH-288 is open, THEN manually or locally CLOSE CH-LCV-112C.

b. CHECK CH-AOV-204B, Normal b. PERFORM the following:

Charging Isolation - OPEN

1) OPEN CH-AOV-204B.
2) IF unable to open CH-AOV-204B, THEN OPEN CH-AOV-204A, Alternate Charging Isolation.
c. CHECK HCV-142 - FULLY OPEN c. IF HCV-142 will NOT open, THEN DISPATCH NPO to open CH-227, HCV-142 Manual Bypass.

(PAB, 41 ft., Charging and RCP Seal Injection Pipe Pen Area)

(STEP 34 CONTINUED ON NEXT PAGE)

Page 36 of 53

(Step 34 continued from previous page)

d. CHECK charging pumps - ANY d. PERFORM the following:

RUNNING

1) PLACE charging pump speed controller in MAN and ADJUST to starting position.
2) START one charging pump.
e. ADJUST charging pump speed to maintain desired PRZR level Page 37 of 53

NOTE If RCP seal cooling was previously isolated, further cooling of the RCP seals will be established by natural circulation cooldown as directed in subsequent procedures.

35. SELECT Recovery Procedure:
a. CHECK RCS subcooling based a. GO To 3-ECA-O.2, LOSS OF on qualified core exit TCs ALL AC POWER RECOVERY WITH

- GREATER THAN 401F [SEE SI REQUIRED.

TABLE BELOW]

RCS PRESSURE RCS SUBCOOLING

>1900 psig [ 630F]

>1000 psig [ 780F]

<1000 psig [1120F]

b. CHECK PRZR level - Can be b. GO To 3-ECA-O.2, LOSS OF MAINTAINED GREATER THAN ALL AC POWER RECOVERY WITH 14% [32%] SI REQUIRED.
c. CHECK SI equipment- c. GO To 3-ECA-0.1. LOSS OF ACTUATED WITH INJECTION ALL AC POWER RECOVERY FLOW UPON AC POWER WITHOUT SI REQUIRED.

RESTORATION

d. GO To 3-ECA-O.2. LOSS OF ALL AC POWER RECOVERY WITH SI REQUIRED

-END -

Page 38 of 53

ATTACHMENT 1 (Attachment page 1 of 7)

ESSENTIAL SERVICE WATER ALIGNMENT

1. IF only one SW pump is supplying Essential Header. THEN PERFORM the following:
a. ENSURE 1104, Serv Wtr Cont Cig, and 1105, Serv Wtr Cont Clg, are closed.
b. DIRECT NPO to monitor temperature of running EDGs and TRIP EDGs when Jacket Water temperature exceeds the High-High temperature alarm setpoint.
c. MONITOR ESW header pressure.
  • IF ESW header pressure can NOT be maintained above SERVICE WTR HDR HIGH LOW PRESS alarm (panel SJF) setpoint, THEN DIRECT NPO to TRIP EDGs.
d. DISPATCH NPO to ensure the following valves are closed and NOTIFY CR when valves are closed:

" SWN-6, SWP's 34,35,36 To Conventional Essential Header Discharge Isolation

" SWN-7, SWP's 31,32,33 To Conventional Essential Header Discharge Isolation

e. IF SWN-6 OR SWN-7 can not be isolated, THEN PERFORM the following:

" isolate SW to MBFP oil cooler

" isolate SW to T.L.O. cooler

" isolate SW to H2 Seal Oil coolers (STEP I CONTINUED ON NEXT PAGE)

Page 39 of 53

ATTACHMENT 1 (Attachment page 2 of 7)

ESSENTIAL SERVICE WATER ALIGNMENT (Step .1 continued from previous page)

f. WHEN SWN-6 and SWN-7 (or downstream oil cooler valves) are isolated, THEN PERFORM the following:
1) IF any EDG was shutdown due to SW. THEN PERFORM the following:

a) DIRECT NPO to perform the following:

1. Re-START EDG(s) and ENERGIZE associated 480V Bus.
2. MONITOR temperature of running EDGs and TRIP EDGs when Jacket Water temperature exceeds the High-High temperature alarm setpoint.

b) ENSURE at least one ESW/Backup pump is running.

c) MONITOR ESW header pressure.

  • IF ESW header pressure can NOT be maintained above SERVICE WTR HDR HIGH LOW PRESS alarm (panel SJF) setpoint. THEN DIRECT NPO to TRIP EDGs.

d) IF EDG cooling can be maintained, TIEN RETURN To next Procedure Section step in effect.

e) IF EDG cooling can NOT be maintained, THEN GO To Step 2.b of this Attachment.

Page 40 of 53

ATTACHMENT 1 (Attachment page 3 of 7)

ESSENTIAL SERVICE WATER ALIGNMENT

2. IF no ESW pumps are running, THEN PERFORM the following:
a. IF NO EDGs are running, THE__N RETURN To next Procedure Section step in effect.
b. IF any EDG is running, THEN PERFORM the following:
1) TRIP running EDGs.
2) DISPATCH NPO to close the following:

" SWN-FCV-i111, SWP's 34,35,36 To Conventional Non-Essential Header Discharge Isolation

" SWN-FCV-1112, SWP's 31.32.33 To Conventional Non-Essential Header Discharge Isolation

3) IF SW pumps 31, 32, and 33, are aligned to Non-Essential SW header, THEN DISPATCH NPO to align available EDGs to Non-Essential SW header as follows:

a) ENSURE BOTH of the following valves are open:

" SWN-29, D.G. Header Supply Inlet Isolation From SWP's 34, 35, 36 Discharge Header

" SWN-30, D.G. Header Supply Inlet Isolation From SWP's 31, 32, 33 Discharge Header b) IF 31 EDG is available, THEN PERFORM the following:

1. CLOSE SWN-62-2, 31 D.G. Supply Header From SWP's 34. 35, 36 Cooler Inlet Isolation.
2. OPEN SWN-62-1. 31 D.G. Supply Header From SWP's 31, 32, 33 Cooler Inlet Isolation.
3. Emergency START 31 EDG per 3-SOP-EL-O01 and ENERGIZE 480V Bus 2A and 3A.

(STEP 2 CONTINUED ON NEXT PAGE)

Page 41 of 53

ATTACHMENT 1 (Attachment page 4 of 7)

ESSENTIAL SERVICE WATER ALIGNMENT (Step 2 continued from previous page) c) IF 32 EDG is available, THEN PERFORM the following:

1. CLOSE SWN-62-4, 32 D.G. Supply Header From SWP's 34, 35, 36 Cooler Inlet Isolation.
2. OPEN SWN-62-3. 32 D.G. Supply Header From SWP's 31, 32, 33 Cooler Inlet Isolation.
3. Emergency START 32 EDG per 3-SOP-EL-O01 and ENERGIZE 480V Bus 6A.

d) IF 33 EDG is available, THEN PERFORM the following:

1. CLOSE SWN-62-6, 33 O.G. Supply Header From SWP's 34. 35, 36 Cooler Inlet Isolation.
2. OPEN SWN-62-5, 33 D.G. Supply Header From SWP's 31, 32, 33 Cooler Inlet Isolation.
3. Emergency START 33 EDG per 3-SOP-EL-O01 and ENERGIZE 480V Bus 5A.

(STEP 2 CONTINUED ON NEXT PAGE)

Page 42 of 53

KrTACHMENT 1 (Attachmeent page 5 of 7)

ESSENTIAL SERVICE WATER ALIGNMENT (Step 2 continued from previous page)

4) IF SW pumps 34, 35, and 36, are aligned to Non-Essential SW header, THEN DISPATCH NPO to align available [DGs to Non-Essential SW header as follows:

a) ENSURE ROTH of the following valves are open:

" SWN-29, D.G. Header Supply Inlet Isolation From SWP's 34, 35, 36 Discharge Header

" SWN-30. D.G. Header Supply Inlet IsolaLion From SWP's 31, 32, 33 Discharge Header b) IF 31 EDG is available, THEN PERFORM the following:

1. CLOSE SWN-62-i., 31 D.G. Supply Header From SWP's 31, 32, 33 Cooler Inlet Isolation.
2. OPEN SWN-62-2, 31 D.G. Supply Header From SWP's 34, 35, 36 Cooler Inlet Isolation.
3. Emergency START 31 LDG per 3-SOP-EL.001 and ENERGIZE 480V Buses 2A and 3A.

c) IF 32 EDG is available, THEN PERFORM the following:

1. CLOSE SWN-62-3, 32 D.G. Supply Header From SWP's 31, 32, 33 Cooler Inlet Isolation.
2. OPEN SWN-62-4, 32 D.G. Supply Header From SWP's 34, 35. 36 Cooler Inlet Isolation.
3. Emergency START 32 MOG per 3-SOP-EL-001 and ENERGIZE 480V Bus 6A.

(STEP 2 CONTINUED ON NEXT PAGE)

Page 43 of 53

ATTACHMENT 1 (Attachment page 6 of 7)

ATTACHMENT I (Attachment page 6 of 7)

ESSENTIAL SERVICE WATER ALIGNMENT (Step 2 continued from previous page) d) IF 33 EDG is available, THEN PERFORM the following:

1. CLOSE SWN-62-5, 33 D.G. Supply Header From SWP's 31, 32, 33 Cooler Inlet Isolation.
2. OPEN SWN-62-6, 33 D.G. Supply Header From SWP's 34. 35, 36 Cooler Inlet Isolation.
3. Emergency START 33 EOG per 3-SOP-EL-O01 and ENERGIZE 480V Bus 5A.
3. IF two Non-essential SW Pumps can be started, THEN START available pumps.
4. IF only one SW pump can be started on Non-Essential header. THEN PERFORM the following:
a. DISPATCH NPO to close SWN-FCV-1111 and SWN-FCV-1112.
b. IF unable to close both SWN-FCV-1111 and SWN-FCV-1112, THEN DISPATCH NPO to close the following:

" TB, 33 Ft, H2 Coolers:

" SWT-24, PCV-1180 & PCV-1180A Bypass

" SWT-23--I, PCV-118O Inlet Isolation

" SWT-235-1. PCV-1180A Inlet Isolation

" TB, 15 Ft, South West Corner:

  • SWT-242, Service Water To S/G Blowdown Recovery Hx No.4 Inlet Isolation
  • TB, 15 Ft. THCC:

" SWT-18-1, 31 Closed Cooling Hx Inlet Isolation

" SWT-18-2, 32 Closed Cooling Hx Inlet Isolation

c. WHEN valves are closed, THEN START one available Non-Essential SW pump.

Page 44 of 53

1 ATTACHMENT ATTACHMENT 1 (Attachment page 7 of 7)

ESSENTIAL SERVICE WATER ALIGNMENT

5. RETURN To Procedure Section. Step In Effect

-END OF ATTACHMENT-Page 45 of 53

ATTACHMENT 2 (Attachment page 1 of 1)

PREVENTING OVERHEATING OF EQUIPMENT AND INSTRUMENTATION

1. DIRECT Security to open the following doors:
  • Both Control Room access doors
  • Both ABFP room access doors e ABFP room roll up door
2. OPEN doors on the following Control Room instrumentation racks:
  • Supervisory Panels - one door on each end of panel
  • Flight panels - one door on each end of panel
  • Panels - Al through A1O
  • Panels - BI through B6
  • Panels - B9 and 310
  • Panels - C5 through CIO
  • Panels - D4 through D9

-END OF ATTACHMENT-Page 46 of 53

STP ACTION/EXPECTED RESPONE I ESPONS NOT OBTAINED ATTACHMENT 3 (Attachment page 1 of 4)

PHASE A VALVE CLOSURE LIST

1. VERIFY the following valves are closed: (Panel SKF)
  • 550. N2 To PRT (near SI reset pushbutton 48)
  • DW-AOV-2, Demin Water To Cont (near SI reset pushbutton 52)
2. VERIFY Panel SNF status lights indicates the following valves are closed:
  • Column 1. Panel SNF:

" V-200A. Ltdn Orifice

" V-200B. Ltdn Orifice

" V200C. Ltdn Orifice

" V-201, Letdown Line

" V-202, Letdown Line 0 V-519. PRT Spray Line

  • Column 2, Panel SNF:

" V-552, PRT Spray Line

" V-548, PRT Gas Anal

" V-549, PRT Gas Anal

  • Column 3, Panel SNF:

" V-791, Ex Ltdn Hx CCW

" V-798, Ex Ltdn Hx CCW

" V-793, Ex Ltdn Hx CCW

" V-796, Ex Ltdn Hx CCW

" V-956A, PRZR Stm Samp

" V-956B, PRZR Stm Samp (STEP 2 CONTINUED ON NEXT PAGE)

Page 47 of 53

STEP ACTION/EXPECTED RESPONSE rRESPONSE NOT OBTAINE DI ATTACHMENT 3 (Attachment page 2 of 4)

PHASE A VALVE CLOSURE LIST (Step 2 continued from previous page)

" Column 4, Panel SNF:

" V-956C, PRZR Liq Samp

" V-956D. PRZR Liq Samp

" V-956E, Hot Leg Samp

" V-956F, Hot Leg Samp

" V-956G, Accum Samp

  • V-956H. Accum Samp

" V-1702. RCDRN TP DIS

" Column 5, Panel SNF:

  • V-1705. RCDRN TP DIS

" V-1723. Cnmt Smp P Dis

" V-1728, Cnmt Smp P Dis

" V-1786, Cnmt Vnt Hdr

" V-1787, Cnmt Vnt Hdr

" V-1788, RC Drn T Gas A

" V-1789, RC Drn T Gas A e Column 7, Panel SNF:

  • PCV-1214. SG 31 Blw On
  • Column 8, Panel SNF:

e PCV-1214A, SG 31 Blw On e PCV-1215, SG 32 Blw On e PCV-l.215A, SG 32 81w On e PCV-1216, SG 33 Blw On e PCV-1216A. SG 33 Blw On

  • PCV-1217, SG 34 Blw On e PCV-1217A. SG 34 Blw On
  • PCV-1223, SG 31 Samp
  • PCV-1223A, SG 31 Samp
  • PCV-1224, SG 32 Samp (STEP 2 CONTINUED ON NEXT PAGE)

Page 48 of 53

STP ACTION/EXPECTED RESPONSE J RESPONSE NOT OBTAINEDj ATTACHMENT 3 (Attachment page 3 of 4)

PHASE A VALVE CLOSURE LIST (Step.2 continued from previous page)

" Column 9, Panel SNF:

  • PCV--1224A, SG 32 Samp
  • PCV-1225, SG 33 Samp
  • PCV-1225A, SG 33 Samp
  • PCV-1226. SG 34 Samp
  • PCV-1226A, SG 34 Samp

" PCV--1228. IA-VC

" PCV-1229, Stm Air Ejec

" PCV-1230, Stm Air Ejec

  • Column 10, Panel SNF:
  • V-863, Acc N2 Supply

" Column 11, Panel SNF:

" DW-AOV-1. Demin Water Cont Isol

" WD-AOV-1610, RCDT N2 Cont Isol

" SP-AOV-959. RHR Sample Cont Isol

" VS-PCV-1234. Cont Rad Mon Isol

" VS-PCV-1235, Cont Rad Mon Isol

" VS-PCV-1236, Cont Rad Mon Isol

- VS-PCV-1237, Cont Rad Mon Isol Page 49 of 53

STEP ACTION/EXPECTED RESPONSE RESPONSE NOT OBTAINED ATTACHMENT 3 (Attachment page 4 of 4)

PHASE A VALVE CLOSURE LIST

3. VERIFY the following valves are closed: (Panel JKI)
a. Row 1, Panel JKI:

0 SP-SOV-512, 32 FCU Sample To H2 Analyzer A First Isol Valve 6 SP-SOV-513, 35 FCU Sample To H2 Analyzer A First Isol Valve SP-SOV-514, FCU 32 .35 Sample To H2 Anal A Header Isol Vlv S SP-SOV-506, 32 FCU Sample To H2 Analyzer B First Isol Valve 0 SP-SOV-507, 34 FCU Sample To H2 Analyzer B First Isol Valve 6 SP-SOV-508. 31 FCU Sample To H2 Analyzer B First Isol Valve S SP-SOV-509, FCU 31,33,34 Sample To H2 Analyzer B Header Isol Vlv

b. Row 2, Panel JKI:

S SP-SOV-511. Sample Ret To VC From H2 Anal A Isolation Vavle 0 SP-SOV-510, Sample Ret To VC From H2 Anal A Isolation Vavle S SP-SOV-516. Sample Ret To VC From H2 Anal B Isolation Vavle 0 SP-SOV-515. Sample Ret To VC From H2 Anal B Isolation Vavle

c. Row 3, Panel JKI:

e SP-oAOV-958, RHR Sample Isolation

4. IF Blowdown Flash Tank is in service, THEN DISPATCH NPO to ensure MW-PCV-1227. City Water To Blowdown Tank Isolation. is closed.

(Indication in Blowdown Flash Tank Room)

-END OF ATTACHMENT-Page 50 of 53

ATTACHMENT 4 (Attachment page I of 3)

ENERGIZING MCC-312A FROM BUS 312 OR 313

1. IF desired to energize MCC-312A from Bus 312 (6900V Buses No 1 and 5).

THEN PERFORM the following:

a. OPEN all load breakers on 480V Bus No. 312.
b. ENSURE 480V Bus 3121313 Tie Breaker is open.
c. OPEN MCC-312A breaker PCB Building 480V Distribution Panel PCE A.
d. OPEN the following 6900V breakers and PLACE in TPO:

" Station Service Transformer 5 (SST-5, supply breaker)

" STS. 6900V Bus No. 5 Normal Feed breaker

  • UT2-ST5. 6900V Bus No. 2-5 Tie breaker
e. CLOSE the following breakers: (at 6900V Switchgear)

" GT-35, 6900V Gas Turbine Substation Bus. supply breaker to 6900V Bus No. 5

" UT1-ST5, 6900V Bus No. 1-5 Tie breaker

" SS-312, 6900V Bus No. 1 supply breaker to Station Service Transformer #312

f. CLOSE 480V Bus 52/312 Main Breaker.

Page 51 of 53

ATTACHMENT 4 (Attachment page 2 of 3)

ENERGIZING MCC-312A FROM BUS 312 OR 313 NOTE ATTACHMENT 3, Step 2.a may be performed concurrently; however, they SHALL be completed prior to continuing with subsequent steps in this attachment.

2. IF desired to energize MCC-312A via BUS-313 (6900V Buses No 3 and 6)

THEN PERFORM the following:

a. OPEN all (8) load breakers on 480V Bus No. 312.
b. OPEN all (8) load breakers on 480V Bus No. 313.
c. ENSURE 480V Bus 312T313 Tie Breaker is open.
d. ENSURE 480V Bus 52/312 Main Bkeaker is open.
e. OPEN MCC-312A breaker PCB Building 480V Distribution Panel PCE A.
f. OPEN the following 6900V breakers and place in TPO:

" Station Service Transformer 6 (SST-6, supply breaker)

" ST6, 6900V Bus No. 6 Normal Feed breaker

" UT4-ST6, 6900V Bus No. 4-6 Tie breaker

" Station Service Transformer 3 (SST-3. supply breaker)

g. CLOSE the following breakers: (at 6900V Switchgear)

" GT-36, 6900V Gas Turbine Substation Bus. supply breaker to 6900V Bus No. 6

" UT3-ST6, 6900V Bus No. 3-6 Tie breaker

" SS-313, 6900V Bus No. 3 supply breaker to Station Service Transformer #313

h. CLOSE 480V Bus 52/313 Main Breaker.
i. CLOSE 480V Tie Breaker 3121-313.

Page 52 of 53

ATTACHMENT 4 (Attachment page 3 of 3)

ENERGIZING MCC-312A FROM BUS 312 OR 313

3. RETURN To next Procedure Section step in effect:
  • Procedure Section, Step 28.e, Page 31

-END OF ATTACHMENT-Page 53 of 53

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