ML20092G895

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Rev 1 to VEGP-18034-1, Loss of Class 1E 125V DC Power
ML20092G895
Person / Time
Site: Vogtle Southern Nuclear icon.png
Issue date: 09/12/1989
From: Bochhold J
GEORGIA POWER CO.
To:
Shared Package
ML20092F288 List: ... further results
References
CON-IIT05-089-90, CON-IIT5-89-90, RTR-NUREG-1410 VEGP-18034-1, NUDOCS 9202200385
Download: ML20092G895 (59)


Text

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)0 Approv j Proced stJ No.

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LOSS OF CLASS lE 125V DC POWER m

PURPOSE This procedure provides the actions to be followed in the event that power is lost to one of the 125V DC Vital Busses (lADl, 18D1, ICDl, or IDD1).

Specific instructional steps will be found in the following sub-prcledures:

A. Loss of 125V DC Bus LAD 1 Page 2 B. Loss of 125V DC Bus 1BD1 Page 27 C. Loss of 125V DC Bus ICD 1 Page 52

~3 D. Loss of 125V DC Bus IDD1 Page 57 SYlfPTOMS Symptoms are identified in the individual sub-procedures.

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PAccEDURE NO.

LEVISloN

VEGP 18034-1 1

2 of 59 O

A.

LOSS OF 125V DC BUS 1AD1 SYMPTOMS 125V DC Vital Bus IAD1 voltage low, e

Loss of power to 1AYlA and 1AY2A 120V AC Vital Instrument e

Panels.

Loss of indicating lights on 1AA02 and 1AB04, LAB 05 and 1AB15 e

Switchgear Controls, e

Train A Main Steamline Isolation.

e Train A Main Feedwater Isolation.

NOTE r3 See Attachment A for Equipment Responses, Breaker and

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Valve Control Loss, Valve Failures from loss of instrument air, and Annunciator Failures.

ACTION / EXPECTED RESPONSE RESPONSE NOT OBTAINED Al.

Dispatch an o")erator to the 1AA02 SWGT Room to

a. Verify offsite power is
a. IF Diesel Generator DGIA available to AC Is not running, it can not Emergency Bus 1AA02 be started.

e Ensure Normal Feeder e

Loss of Train A.

Breaker 1AA02-05 is CLOSED.

Go to Step A3.

b. IF Emergency Diesel Uenerator DGIA is running, and no offsite power is available to IAA02 Bus, THEN do not perform Step A2'until offsite power to

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Bus lAA02 is restored.

c. Go to Step A3.

PROCEDURE ho.

C;EVISION PAJE No a

VEGP 18034-1 1

3 of 59

-._J G

ACTION / EXPECTED RESPONSE

_ RESPONSE NOT OBTAINED lO NOTE Diesel 0=nerator Electrical Protectivo Trips are inoperable.

A2.

Dispatch an operator to locally remove Diesel Generator.DG1A from

service,
a. Ensure IAA02 Bus Feed Breaker 1AA02-19 is OPEN.
b. Stop the Diesel Generator by placing the " Pull-To-Run/

Push-To-Sto," handswitch at the sout'2 end of the engine to STOP.

O A3.

Dispatch an operator to A3.

Initiate 18032-1, LOSS OF restore power to 120V AC 120V AC INSTRUMENT POWER Instrument Panel 1AYlA.

Sub-procedure A.

a. Open Normal Feeder Breaker from Inverter; 1ADlIls e

1AYlA-02,

b. Ensure the Regulated Transformer Supply Breaker for 1ABC09X is CLOSED:

e 1ABC-09,

c. Close Alternate Source Breaker to 1AYlA Instrument Panels e

1AYlA-01.

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PAOCEDURE No.

LEVI 5loN P AGE too.

VEGP 18034-1 1

4 of 59 p+,

ACTION / EXPECTED RESPONSE RESPONSE NOT OBTAIMED A4.

Dispatch an operator to A4.

Initiate 18032-1, LOSS OF rescure power to 120V AC 120V AC INSTRUtfENT PANEL Instrument Panel 1AY2A Sub-procedure B.

a. Open !!ormal Feeder Breaker from Inverter 1AD1111:

e 1AY2A-02,

b. Ensure the Regulated Transformer Supply Breaker for lABB40X is CLOSED:

e 1ABB-40.

c. Close Alternate Source Breaker to LAY 2A Instrument Panel e

1AY2A-01.

,rm; AS.

IF an RCP 1 undervoltage AS.

IF the

trip, or underfrequency conditton HIspatc$umpdoesnot an operator to PSDA arises, trip the pump using to trip the pump:

1-HS-0495B on QMCB.

e 1-HS-0495D.

A6.

Dispatch an operator to A6.

Initiate to 13405-1, 125V DC restore power to Bus 1ADl.

lE ELECTRICAL DISTRIBUTION SYSTEM.

a. Ensure Bus Feeder Breakers are CLOSED:

o Continue attempts to restore power to lADl.

Battery 1ADlB, e

1ADI From Charger 1ADICA, e

1AD1 From Charger 1ADICB,

b. Ensure Panel Feeder Breakers are CLOSED:

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(.)N lADl Feeder to

1ADil, l

e 1ADI Feeder to

1AD12, l

e lADI Feeder to 1ADlM.

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PRocEDUAE No.

LEVI $loN PAGE No

+

VEGP 18034-1 1

5 of 59 ACTION / EXPECTED RESPONSE RESPONSE NOT OBTAINED A7.

Ensure Train B Fuel A7.

Initiate 12320-C, FUEL Handling Building Post HANDLING B'JILDING HVAC Accident Filtration System SYSTEli and place Train B has actuated on low Post Accident Filtration differential pressure.

System in service.

A8.

Manually actuate Control A8.

Initiate 13301-C, CONTROL Room Isolation by placing BUILDING CONTROL ROO!! HORMAL Train B Actuate Switch AND ESSENTIAL HVAC SYSTEM 1-HS-12196A on QHVC to and place Train B Control actuate.

Room Filter Unit in service.

A9.

Start Train B Electrical A9.

Initiate 13302-1, CONTROL Penetration Room Filter BUILDING ESF VENTILATION Exhaust Fan using 1-HS-2555 SYSTEMS and place Train B on QHVC.

Electrical Penetration Area Filter Exhaust Unit in se rvic e.

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A10. Start Train B Piping A10. Initiate 13305-1, AUXILIARY Penetration Filter Exhaust BUILDING HVAC SYSTE!! and Fan using 1-HS-2549 on QHVC.

place Train B Piping Penetration Filter Exhaust Unit in service.

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n PROCEDU-E No GEVISION PAGE tio.

VEGP 18034-1 1

6 of 59 ACTION / EXPECTED RESP 0l!SE RESPONSE NOT OBTAINED NOTE Step All appAies only if the Train A Diesel Generator is still running and Bus LAD 1 has not been re-energized.

All. De-energize or stop the followings

a. De-energico the Generator Spat.e Hoatet Control Switch in OFF, o

OR e

INBI-1TOPEN.

b. Stop the Jacket Water Keep-Warm Pumps Control Switch in OFF, e

OR e

1NBI-1TOPEN.

c. Stop the Lube 011 Keep Warm Pump:

Control' Switch in OFF, e

OR e

INBI-lTOPEN.

d. De-energize the Jacket Water Heater:

Control Switch in 0FF, o

OR e

1NBI-lTOPEN.

c. De-energize the Lube 011 Heater:

Control Switch in OFF, o

OR e

1NBI-lT'0 PEN.

A12. Inform the Radwaste O.

Building 0)erator th;:t steam to tie Radwaste System has been ISOLATED.

PRoCEDUAE NO HLV.SiON rAGLNo VEGP 18034-1 1

7 of 59

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ACTION / EXPECTED RESPONSE RESPONSE NOT OBTAINED t

L' A13. Check oower to Bus LAD 1 -

A13. Return to Step A6.

RESTORID.

A14. Re-establish power to Diesel Generator DGlA accessories if applicable.

a. Energize Generator Space Heater INBI-18 CLOSED, e

e Control Switch in AUTO.

b. Energize the Jacket Water Keep-Warm Pump:

INBI-12 CLOSED, e

e Control Switch in AUTO.

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c. Energize the Lube 011

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Keep-Warm Pumps e

1NBI-15 CLOSED, o

Control Switch in AUTO.

d. Energize the Jacket Water Heater e

INBI-13 CLOSED, o

Control Switch in AUTO.

e. Energize the Lube 011 Heater e

IN11-16 CLOSED, Cet1.'rol Switch in AUTO.

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PROCEDURE No.

LEve$loN PA E No.

VEGP 18034-1 1

8 of 59 ACTION / EXPECTED RESPONSE RESPONSE NOT OBTAINED A15. Establish Instrument Air to the Containment:

e 1-HV-9378 OPEN.

A16. Establish Normal Letdown A16. Initiate 13008-1, CHEMICAL by initiating 13006-1 AND VOLUME CONTROL SYSTEM CHEMICAL AND VOLUME CONTROL EXCESS LETDOWN and establish SYSTEM STARTUP AND NORMAL excess letdown.

OPERATION.

A17. Return 120V AC Instrument Panels LAY 1A and 1AY2A to their normal supply by initiating 13431-1, 120V AC VITAL INSTRUMENT DISTRIBUTION SYSTDt.

p A18. Return Control Room v

ventilation to normal operation by initiating 13301-C, CONTROL BUILDING CONTROL ROOM NORMAL AND ESSENTIAL HVAC SYSTDI.

A19. Return Fuel Handling Building ventilation to normal operation by initiating 13320-C, FUEL HANDLING BUILDING HVAC SYSTEM.

A20. Return the Electrical Penetration Filtration and Exhaust System to normal operation by initiating 13302-1, CONTROL BUILDING ESF VENTILATION SYSTEMS.

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PROCEDURE No.

LEVISioti PAGE No.

VEGP 18034-1 1

9 of 59

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ACTION / EXPECTED RESPONSE RESPONSE NOT OBTAINED A21. Return the Piping Penetration Filtration and Exhaust System to normal operation by initiating 13305-1, AUXILIARY BUILDING HVAC SYSTEM.

A22. Align systems and components as required for present operational mode.

END OF SUB-PROCEDURE TEXT

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PnoCEDU E No.

i.tvlSloN RAGE No VECP 18034-1 1

10 of 59

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Sheet 1 of 17

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ATTACHitENT A gj LOS3 0F 125V DC BUS 1AD1 EQUIPMEfiT RESPONSE DUE TO LOSS OF TRAIN A 12SV DC POWER Main Feedwater Isolation, Isolation Bypass, Main Flow Control, e

and Startup Flow Control Valves close resulting in Feedwater Iso tition, Main Steam Isolation and Isolation Bypass Train A Valves Close e

resulting ir steamline isolation, Reactor and Turbine trip occurs from loss of main feedwater.

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Control Power is lost to lAA and 1AB SUCR Breakers, Diesel Generator DCIA control power to Generator Control Panel o

PDG1 and Engine Control Panel Pf'2 is lost rendering the Diesel Generator inoperable

.if runnin6 it will fail as is with a loss of electrical protective trips, frequency, and voltage control.

Due'to loss of power to the Low Speed Relay, the generator space, Engine Lube Oil and Jacket Water Heaters and Lube Oil and Jacket

(_)

Water Keep-Warm Pumps will come on.

e Power to Inverters lADlIl and 1AD1Ill is lost causing 120V AC Vital Busses lAYlA and 1AY2A to de-energize, e

Instrument Air Containment Isolation Valve 1-HV-9378 closes resulting in loss of instrument air inside Containment.

Power To Isolation Panel 1ACQIPl is lost rendering the e

annunciators in Train A inoperable.

NOTE Feeder Breakers must be manually controlled in the event the transfer to an alternate power supply is required.

IF the Diesel Generator (DGlA) is not

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running, it may not be selected as an alternate power source.

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MOCECLM No.

REVISloN PAGE No.

VEGP 18034-1 1

11 of 59 Sheet 2 of 17 ATTAClefENT A LOSS OF 125V DC BUS 1AD1 LOSS OF 1AA02 BUS BREAKER CONTROL DUE TO LOSS OF 125V DC TO 1ADil l

The following 1AA02 Bus Feeder Breakers will fail as aligned prior to loss of Bus lADl:

1AA02-05 Normal Power from RAT XFMR Normally Closed 1NXRA 1AA02-19 Emergency Backup from Diesel Normally Open Generator (DG1A)

NOTE Output Breakers must be manually controlled in order to START /STOP the following listed pumps or to ENERGIZE /DE-ENERGIZE 480V Load Centers LAB 04, LAB 05 and 1AB15.

1AA02-03 CCW PMP 1 1AA02-04 NSCW PMP 1 1AA02-06 CB ESF CHLR A 1AA02-07 CCW PMP 3 1AA02-08 NSCW PMP 3 1AA02-09 RHR PMP A 1AA02-Il CCW PMP 5 1AA02-12 NSCW PMP 5 1AA02-13 CCP A 1AA02-14 CS PMP A 1AA02-15 ACCW PMP A 1AA02-16 SIP A 1AA02-17 MDAFW PMP A t

1AA02-10 Supply To Load Center LAB 15 1AA02-20 Supply To Load Center LAB 04 lAA02-21 Supply To Load Center IAB05 1AA02-22 Supply To Load Center INB01

PROCEDULE No, GEVISIOff PAGT NO VEGP 18034-1 1

12 of 59 Sheet 3 of 17 O

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LOSS OF 125V DC BUS 1AL1 LOSS OF 1AB04 BUS BREAKER CONTROL DUE TO LOSS OF 125V DC TO 1AD11 NOTE The following Feeder and Output Breakers must be manually controlled at 1AB04 Bus.

1AB04-01 1AB04 Bus Feeder Breaker 1AB04-02 1AB04 Feeder To MCC-1ABE 1AB04-04 CC Fan 1 Hi Speed 1AB04-05 CC Fan 1 Low Speed 1AB04-08 CC Fan 2 Hi Speed 1AB04-09 CC Fan 2 Low Speed

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1AB04-12 CC Fan 5 Hi Speed 1AB04-13 CC Fan 5 Low Speed 1AB04-16 CC Fan 6 Hi Speed 1AB04-17 CC Fan 6 Low Speed O

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PROCEDU-E No GEVISION PAGE P40 VEGP 18034-1 1

13 of 59 9

Sheet 4 of 17 j

ATTAC104ENT A LOSS OF 125V DC BUS 1Ap;,

LOSS OF 1AB05 BUS BREAKER CONTROL DUE TO LOSS OF 125V DC TO 1ADil NOTE The following Feeder and Output Breakers must be manually controlled at 1AB05 Bus, LAB 05-01 1AB05 Bus Feeder Breaker 1AB05-02 1AB05 Feeder To MCC-1ABA 1AB05-04 CBCR Fitr Unit i 1AB05-05 1AB05 Feeder To MCC-1ABC 1AB05-06 CBCR Htr 1 1AB05-08 CTB H Recombiner 1 2

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1AB05-09 CB Elec Pen Fitr Unit Fan 1 1AB05-12 DG1A Vent Fan 1 1AB05-13 DGIA Vent Fan 3 1AB05-14 1AB05 Feeder To MCC-1ABF OV

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PJOCEDURE No.

REVISION PAGE No.

VEGP 18034-1 1

14 of 59 Sheet 5 of 17 O

ATTACHIENT A V

LOSS OF 125V DC BUS 1AD1 LOSS OF 1AB15 BUS BREAKER CONTROL DUE TO LOSS OF 125V DC TO 1ADil NOTE The following Feeder and Output Breakers must be manually controlled at 1AB15 Bus, LAB 15-04 Pipe Pen Fltr & Exh Unit Htr 1 1ABi3-05 NSCW Clg Twr Tr A Fan 1 1ABl:3-06 NSCW Clg Twr Tr A Fan 2 1AB15-08 NSCW Clg Twr Tr A kan 4 1AB15-09 1AB15 Feeder to MCC-1ABB 1AB15-10 1AB15 Feeder to MCC-1ABD 1AB15-12 Spend Fuel Pit Pump 2 1A315-13 NSCW Clg Twr Tr A Fan 3 1AB15-14 Pipe Pen Fltr & Exh Unit Fan 1

_______.___.____..__/I m._-_._

__.________-______._.___m._______________

PROCEDURE No. -

REVISION PAGE NO.

VEG?

18034-1 1

15 of 59 Sheet 6 of 17 ATTACHMENT A LOSS OF 125V DC BUS 1AD1 LOSS OF INSTRUMENT AIR TO CONTAINMENT DUE TO LOSS OF 125V DC TO 1AD12 FAILED POSITION REACTOR COOLANT SYSTEM 1-HV-8032 Reactor Vessel Flange Leakoff Open WASTE PROCESSING SYSTEM - LIQUID l-HV-7127 RCDT To Drain Pump Suction Open 1-HV-7144 RCDT Recire Isolation Valve Open CONTAINMENT AND. AUXILIARY BUILDING DRAINS - RADIOACTIVE f) 1-HV-17091 CTB Cooling Units To CNMT Sump open

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l-HV-17095 CTB Cooling Units To CNMT Sump Open l 'w '

' TEAM SYSTEM 1 -?'z -5 23 8 Steam Generator N, Blanketing System Open i-?v-5239 Steam Generator N'2 Blankering System Open

-Pi-5240 Steam Generator N Blanketing System Open 4

9

2. CV-5241 Steam Generator N Blanketing System open 2

1-PV-15250 Steam Generator N, Blanketing System Open 1-PV-15252 SteamGeneratorNjBlanketingSystem Open (Y

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PROCEDURE NO.

REVISloN PAGE NO.

VEGP 18034-1 1

-16.of 59 Sheet 7 of 17 ATTACHMENT A LOSS OF 125V DC BUS LAD 1 LOSS OF INSTRWiENT AIR TO CONTAINMENT DUE TO LOSS OF 125V DC TO 1AD12 FAILED POSITION REACTOR COOLANT SYSTEM l-PV-0455B Pressurizer Spray Isolation Valves Closed 1-PV-0455C

-Pressurizer Spray Isolation Valves Closed 1-HV-8145 Pressurizen Spray Isolation Valves closed 1-HV-8031 PRT Drain To The RCDT Closed 1-HV-8047 PRT Vent To The WGDT Closed 1-HV-8030 RMWST Fill To The PRT Closed o

PROCEDUlf. No.

REVISION PAGE No.

VEGP 18034-1 1

17 of 59 Sheet 8 of 17 ATTACl&fENT A LOSS OF 125V DC BUS 1AD1 LOSS OF INSTRUMENT AIR TO CONTAINMENT DUE TO LOSS OF 125V DC TO 1AD12 FAILED POSITION CHEMICAL AND VOLUME CONTROL SYSTEM l-LV-0178 RCP Standpipe Fill Valves Closed 1-LV-0179 RCP Standpipe Fill Valves Closed 1-LV-Oi80 RCP Standpipe Fill Valves Closed 1-LV-0181 RCP Standpipe Fill Valves Closed 1-HV-8141A Number 1 RCP Seal Leakoff Valves Closed 1-HV-8141B Number 1 RCP Seal Leakoff Valves Closed 1-HV-8141C Number 1 RCP Seal Leakoff Valves Closed 1-HV-8141D Number 1 RCP Seal Leakoff Valves Closed

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S 1-LV-0459 RCS Letdown Isolation Valves Closed

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1-LV-0460 RCS Letdown Isolation Valves Closed l-HV-8149A RCS Letdown Isolation Valves Closed 1-HV-8149B RCS Letdown Isolation Valves Closed 1-HV-8149C RCS Letdown Isolation Valves Closed 1-HV-15214 RCS Letdown Isolation Valves Closed 1-HV-8160 RCS Letdown Isolation Valves Closed 1-HV-8153 RCS Excess Letdown Isolation Valves Closed

' HV-8154 RCS Excess Letdown Isolation Valves Closed 1-HV-0123 RCS Excess Letdown Isolation Valves Closed l-HV-8143 RCS Excess Letdown-Divert Valve To VCT o

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PROCEDU.,E NO, L;EYlSION PAGE No VEGP 18034-1 1

18 of 59 Sheet 9 of 17

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ATTACHMENT A LOSS OF 125V DC BUS 1AD1 LOSS OF INSTRUMENT AIR TO CONTAINMENT DUE TO LOSS OF 125V DC TO 1AD12 FAILED POSITION SAFETY INJECTION SYSTEM l-HV-8878A Accumulator Fill Isolation Valves Closed 1-HV-8878B Accumulator Fill Isolation Valves Closed 1-HV-8878C Accumulator Fill Isolation Valves Closed 1-HV-8878D Accumulator Fill Isolation Valves Closed 1-HV-8871 SIS Check Valve And System Test Line Closed Isolation Valves 1-HV-8881 SIS Check Valve And System Test Line Closed Isolation Valves 1-HV-8823 SIS Check Valve And System Test Line Closed Isolation Valves

'~N 1-HV-8824 SIS Check Valve And System Test Line Closed

(

Isolation Valves 1-HV-8825 SIS Check Valve And System Test Line Closed Isolation Valves 1-HV-8843 SIS Check Valve And System Test Line Closed Isolation Valves 1-HV-8877A, SIS Check Valve And System Test Line Closed B,C, and D Isolacion Valves 1-HV-8879A, SIS Check Valve And System Test Line Closed B,C, and D Isolation Valves 1-HV-8882 SIS Check Valve And System Test Line Closed Isolation Valves 1-HV-8889A, SIS Check Valve And System Test Line Closed B C, and D Isolation Valves 1-HV-8890A SIS Check Valve And System Test Line Closed and B Isolation Valves i

e

PROCEDURE NO.

REVISION PAGE NO.

VEGP 18034-1 1

19 of 59 Sheet 10 of 17 ATTACHMENT A

( j LOSS OF 125V DC BUS 1AD1 LOSS OF INSTRUMP.NT AIR TO CONTAINMENT DUE TO LOSS OF 125V DC TO 1ADl?.

FAILED POSITION WASTE PROCESSING SYSTEM - LIQUID 1-HV-7699 RCDT Pumps Discharge Containment Closed Isolation Valve 1-HV-1003 RCDT Level Control Valve Closed 1-HV-7126 RCDT Vent To GWPS Closed 1-HV-7143 RCDT Recirc Valve Closed 1-HV-7141 RCDT To PRT Isolation Valve Closed NUCLEAR SAMPLING SYSTEM - LIQUID 1-HV-3507 Pressurizer Liquid And Steam Space Closed Sample Isolation Valves 1-HV-3513 Pressurizer Liquid And Steam Space Closed Sample Isolation Valves 1-HV-3501 RCD Hot Leg 3 To Failed Fuel Closed Detector Isolation Valve

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PRoCEDU E NO.

REVISION PAGE No.

VEGP 18034-1 1

20 of 59 Sheet 11 of 17 ATTACHMENT A LOSS OF 125V DC BUS LAD 1 LOSS OF INSTRUMENT AIR TO CONTAINMENT DUE TO LOSS OF 125V DC TO 1AD12 FAILED POSITION CONTAINMENT AND AUXILIARY BUILDING DRAINS - RADIOACTIVE l-HV-0780 Reactor Cavity And CNMT Sumps Closed Discharge Isolation Valve STEAM GENERATOR BLOWDOWN SYSTEM l-HV-15212A Steam Generator Blowdown Isolation Closed Valves 1-HV-15212B Steam Generator Blowdown Isolation Closed Valves 1-HV-15212C Steam Generator Blowdown Isolation Close'd Valves

/G l-HV-15212D Steam Generator Blowdown Isolation Closed C

Valves 1-HV-15216A Steam Generator Blovdown Isolation Closed Valves 1-HV-15216B Steam Generator Blowdown Isolation Closed Valves 1-HV-15216C Steam Generator Blowdown Isolation Closed Valves 1-HV-15216D Steam Generator Blowdown Isolation Closed Valves CONTAINMENT PURIFICATION AND CLEANUP SYSTDI l-HV-2626B CNMT Mini-Purge Supply Isolation Closed Damper 1-HV-2628B CNMT Mini-Purge Exhaust Isolation Closed Damper 1-HV-12985 CTB Preaccess Filter Unit Diluge Closed 1-HV-12987 CTB Preaccess Filter Unit Diluge Closed q

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P OCEDU-E NO.

REVISION PAGE NO.

VEGP 18034-1 1

21 of 59 Sheet 12 of 17

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ATTACHMENT A LOSS OF 125V DC TO BUS 1AD1 TRAIN A ANNUNCIATOR ALARMS LOST DUE TO LOSS OF 125V DC TO 1ACQIPl FROM 1AD12 ALARM BOARD / WINDOW DESCRIPTION ALB02-B1 NSCW TRAIN A LO HDR PRESS ALB02-B2 NSCW TRAIN A TRANSF PHP LO DISCH PRESS ALB02-D2 NSCW TRAIN A CNMT CLR 1&2 LO FLOW ALB02-E2 NSCW TRAIN A CNMT CLR 5&6 LO FLOW ALB02-F2 NSCW TRN A RX CVTY CLG COIL LOW FLOW ALB02-C3 NSCW TRAIN A DG CLR LO FLOW ALB02-E3 NSCW TRAIN A NORM /BYP VLV MISPOSITIONED ALB02-C4 NSCW TRAIN A RHR PMP & MTR CLR LO FLOW

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,V ALB02-A5 CCW TRAIN A SURGE TK LO-LO LVL ALB02-E5 CCW TRAIN A RHR PMP SEAL LO FLOW ALB02-A6 CCW TRAIN A LO HDR PRESS ALB02-B6 CCW TRAIN A LO FLOW ALB02-D6 CCW TRAIN A RHR HX LO FLOW ALB04-El TRAIN A SYS STATUS MON PNL ALERT ALB04-F3 TRAIN A SHUTDOWN PNL ON LOCAL CNTL ALB04-F5 TRAIN C SHUTDOWN PNL ON LOCAL CNTL i

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PROCEDURE NO.

AEvtSION PAGE NO.

VEGP 18034-1 1

22 of 59 Sheet 13 of 17

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ATTACHMENT A LOSS OF 125V DC TO BUS 1AD1 TRAIN A ANNUNCIATOR ALARMS LOST DUE TO LOSS OF 125V DC TO 1ACQIPl FROM 1AD12 ALARM BOARD / WINDOW DESCRIPTION ALB05-A5 GROUP 1 MONITOR LIGHT COMP OFF NORM ALB05-B5 GROUP 2 MONITOR LIGHT COMP OFF NORM ALB05-C5 GROUP 3 MONITOR LIGHT COMP OFF NORM ALB05-D5 GROUP 4 MONITOR LIGHT COMP OFF NORM ALB05-E5 CROUP 5 MONITOR LIGHT COMP OFF NORM ALB06-C1 RHR PMP OVERLOAD TRIP ALB06-F6 SI PMP OVERLOAD TRIP ALB07-C6 CHARGING PUMP OVERLOAD TRIP ALB09-El MANUAL REACTOR TRIP ALB09-F1 MANUAL SAFETY INJ REACTOR TRIP ALB12-E4 PCV-455A OPEN SIGNAL ALB12-E6 A COLD OP ACTU VLV HV-8000A NOT FULL OPEN

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PROCEDURE NO.

REVISION PAGE NO.

VEGP 18034-1 1

23 of 59 4

ATTACHMENT A LOSS OF 125V DC TO BUS 1AD1 TRAIN A ANNUNCIATOR ALARMS. LOST DUE TO LOSS OF 125V DC TO 1ACQIPl FROM 1AD12 ALARM BOARD / WINDOW DESCRIPTION ALB14-A4 MN STM LOOP 1 TRN A ISO VLV GAS LO PRESS ALB14-B4 MN STM LOOP 2 TRN A ISO VLV GAS LO PRESS ALB14-C4 MN STM LOOP 3 TRN A ISO VLV GAS LO PRESS ALB14-D4 MN STM LOOP 4 TRN A ISO VLV GAS LO PRES ALB14-A5 MN STM LOOP 1 TP.N A ISO VLV TROUBLE ALB14-B5 MN STM LOOP 2 TRN A ISO VLV TROUBLE ALB14-C5 MN STM LOOP 3 TRN A ISO VLV TROUBLE ALB14-D5 MN STM LOOP 4 TRN A ISO VLV TROUBLE V

ALB14-F6 MN STM ISO VALVES NOT FULL OPEN ALB16-F5 AFW AUTO START MFPT TRIP RLY CNTRL PWR LOSS ALB16-F6 AW P-3 DISCH HDR LO PRESS ALB34-D1 125V DC SWGR 1AD1 TROUBLE ALB34-El BAT CHARGERS 1ADICA 1ADlCB TROUBLE ALB34-D2 125V DC MCC 1ADlM TROUBLE ALB34-E2 INVERTERS 1ADlIl lADlIll TROUBLE ALB34-F2 125V DC PNL 1ADll TROUBLE ALB34-D3 125V DC PNL 1AD12 TROUBLE ALB34-E3 120V AC PANELS LAY 1A 1AY2A TROUBLE ALB34-A6 13,8KV SWGR 1AAA TROUBLE A

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PROCEDURE NO.

REVISION PAGE NO.

VEGP 18034-1 1

24 of 59 Sheet 15 of 17 ATTACHMENT A LOSS OF 125V DC TO BUS 1AD1 TRAIN A ANNUNCIATOR ALARMS LOST DUE TO LOSS OF'125V DC TO 1ACQIP1 FROM 1AD12 ALARM BOARD / WINDOW DESCRIPTIO; ALB34-B6 13.8KV SWGR 1BAB TROUBLE ALB34-A7 13,8KV SWGR 1CAC TROUBLE ALB34-B7 13.8KV SWGR 1 DAD TROUBLE ALB36-Al 4160V SWGR 1 AA02 TROUBLE ALB36-B1 4160V SWGR 1AA02 NEG PH SEQ BUS PT ALB36-C1 480V MCC 1ABA TROUBLE ALB36-D1 480V MCC 1ABD TROUBLE ALB36-El 4160V/480V SUCR TRN A TRANSFER SW ON LOCAL ALB36-F1 ISO DEVICE PNL TRN A QIPS TROUBLE ALB36-A2 480V SVGR 1AB04 TROUBLE ALB36-B2 480V SWGR 1AB15 TROUBLE ALB36-C2 480V MCC 1ABB TROUBLE ALB36-D2 480V MCC 1ABE TROUBLE ALB36-F2 BAT 1ADlB BRKR OPEN ALB36-A3 480V SVGR 1AB05 TROUBLE ALB36-B3 SEQ A PNL DOORS OPEN ALB36-C3 480V MCC 1ABC TROUBLE ALB36-D3 480V MCC 1ABF TROUBLE ALB36-F3 ISO DEVICE PUL TRN A QIPl TROUBLE O

PJ;OCEDURE NO.

REVISION PAGE NO.

VEGP 18034-1 1

25 Of 59 Sheet 16 of 17

(

ATTACHMElil' A LOSS OF 125V DC TO BUS 1AD1 TRAIN A ANNUNCIATOR ALARMS LOST DUE TO LOSS OF 125V DC TO 1ACQIPl FROM 1AD12 ALARM BOARD / WINDOW DESCRIPTION ALB50-B3 CR HI/LO DIFF PRESS ALB50-B4 CR TRAIN A FLTR TROUBLE ALB50-A7 BAT RM TRN A SPLY FAN LO AIR FLOW ALB50-B9 ELEC PEN TRAIN A FLTR TROUBLE ALB51-Al DG TRN A CBL TUNNEL HI TEMP ALB51-B1 NSCW TRN A CBL TUNNEL HI TEMP ALB51-C1 AB CBL TUNNEL HI TEMP ALB51-A3 SWOR AB15 RM HI TEMP l

ALB51-B3 MCC ABD RM HI TEMP ALB51-C3 MCC ABB RM HI TEMP ALB51-D3 RHR TRAIN A PMP RM HI TEMP ALB51-E3 CCS TRAIN A PMP RM HI TEMP ALB51-A4 CCW TRAIN A PMP RM HI TEMP ALB51-B4 CVCS TRAIN A PMP RM HI. TEMP ALB51-C4-SI TRAIN A PMP RM HI TEMP ALB51-D4 SFCS & HX TRAIN A RM HI TEMP ALB52-B2 PIPE PEN TRAIN A FLTR TROUBLE ALB52-C8' CNMT POST LOCA F-1 LO AIR FLOW LO l

I

PROCEDU' E NO.

REVISION PAGE NO.

VEGP 18034-1 1

26 of 59 Sheet 17 of 17

/]

ATTACHMENT A

'/__-

LOSS OF 125V DC TO BUS LAD 1 TRAIN A ANNUNCIATOR ALARMS LOST DUE TO LOSS OF 125V DC To lACQIPl FROM 1AD12 ALARM BOARD / WINDOW DESCRIPTION ALB53-A2 AFW TRN-A PMP HOUSE HI TEMP ALB53-C2 AFW TRN A PMP HOUSE FAN LO AIR FLOW ALB53-C7 CHLR TRN A EVAP WTR HI/LO TEMP ALB53-D7 CHLR TRN A EVAP OR C0!!D WTR LO FL'0W ALB53-E7 CHLR TRN A TROUBLE ALB54-Al FHB POST ACCIDIUT FLTR 1 TROUBLE ALB54-F2 FHB AREA LO DIFF PRESS

)

ALB61-D6 LVL B LEAK DETECTED ALB61-E6 LVL C LEAK DETECTED ALB61-F6 LVL D LEAK DETECTED ALB62-F5 CNMT H MON TRAIN A ALERT 3

END OF ATTAC& TENT A I

k ~./

e l

l REVISION PAGE No.

Pe;OcEDUAE No.

VEGP 18034-1 1

27 of 59 P)

(_

B.

LOSS OF 125V DC BUS 1BDl, SYMPTOMS 125V DC Vital Bus 1BD1 voltage low, e

Loss of power to 1BY1A and 1BY2B 120V AC Vital Instrument Panels.

o Loss of Indicating Lights on 1BA03 and IBB06, IBB07 and 1BB16 e

Switchgear Controls.

e Train B Main Steam Line Isolation, e

Train B Main Feedwater Isolation.

NOTE See Attachment B for Equipment Responses, Breaker and

(~T Valve Control Loss, Valve Failures from loss of

'Kg/

instrument air, and Annunciator Failures.

ACTION / EXPECTED RESPONSE RESPONSE NOT OBTAINED Bl.

Dispatch an operator to the 1BA03 SWGR Room to:

a. Verify offsite power
a. IF Diesel Generator DGlB is available to AC Ti not running, it can Emergency Bus 1BA03:

not be started.

e Ensure Normal Feeder e

Loss of Train B.

Breaker 1BA03-01 is CLOSED.

e Go to Step B3.

b. IF Emergency Diesel Uenerator DG1B is running, and no offsite power is available to 1BA03 Bus, THEN do not perform Step B2 until offsite power to Bus 1BA03 is restored.

()

c. Go to Step B3.

P..OCEDURd No.

i.EVISION PAGE No.

VEGP 18034-1 1

28 of 59 F

4 ACTION / EXPECTED RESPONSE

, RESP 0tlyij'OT OBTAINED NOII Diesel Generator Electrical Protective Trips are inoperable.

B2.

Dispatch an operator to locally remove Diesel Generator DGlB from service.

a. Ensure 1BA03 Bus Feed Breaker 1BA03-19 is OPEN.
b. Stop the Diesel Generator by placing the " Pull-To-Run/

Push-To-Stop" handswitch at the south end of the engine to STOP.

I b

\\

/

B3.

Dispatch an operator to B3.

Initiate 18032-1, LOSS OF restore power to 120V AC 120V AC INSTRUlfENT POWER Instrument Panel IBY1B.

Sub-procedure C.

a. Open Normal Feeder Breaker From Inverter 1BDlI2:

e 1BYlB-02.

b. Ensure the Regulated Transformer Supply Bieaker for 1BBA07X is CLOSED:

e 1BBA-07,

c. Close Alternate Source Breaker To IBYlB Instrument Panel:

e 1BY1B-01.

?

w

s

. _.. _ _. y.

m,

PROCEDURE NO.

8;EVISloN PAGE No, VEGP 18034-1 1

29 of 59-()

' ACTION / EXPECTED RESPONSE RESPONSE NOT-0BTAINED.

B4.-

Dispatch-an. operator to B4.

Initiate.18032 LOSS OF restore power to 120V AC 120V AC INSTRUMENT PANEL Instrument Panel 1BY2B.

Sub-procedure D.

a. Open Normal Feeder Breaker from-Inverter IBDlIl2:

e IBY28-02.-

L

b. Ensure the-Regulated Transformer Supply Breaker-for.1BBB40X is CLOSED:

e 1BBB-40.

c. Close. Alternate Source Breaker-To IBY2B Instrument Panel:

I e -1BY2B-01.

O B5.

.IF an RCP'2 undervoltage or

'BS.

IF the aump does not trip, underfrequency condition Hispacc a an operator to PSDB arises, trip the pump using to trip the pump.

1-HS-0496B.on QMCB.

.e 1-HS-0496D.

r O

PROCEDU,- E NO.

REVISION PAGE N[

l VEGP 18034-1 1

30 of 59

()

ACTION / EXPECTED RESPONSE RESPONSE NOT OBTAINED B6.

Dispatch an operator to B6.

Initiate 13405-1, 125V DC 1E restore power to Bus 1BDl.

ELECTRICAL DISTRIBUTION SYSTEM.

a. Ensure Bus Feeder
a. Continue attempts to Breakers are CLOSED:

restore power to IBD1.

e 1BDl From Battery 1BDIR, e

1BDl From Charger IBDICB, e

1BD1 From Charger IBDICA

b. Ensure Panel Feeder Breakers are CLOSED:

e 1BDl Feeder to

1BDil, e

1BDl Feeder to

1BD12, CT e

1BD1-ll - Feeder to

(/

LBD1M.

B7.

Manually actuate Train A B7.

Initiate 13320-C, FUEL Fuel Handling Building HANDLING BUILDING HVAC Post Accident Filtration SYSTEM and place Train A System by placing Post Accident Filtration A-HS-2532A on QHVC to System in service.

ACTUATE.

B8.

Manually Actuate Control B8.

Initiate 13301-C, CONTROL Room Isolation by placing BUILDING CONTROL ROOM NORMAL Train A Actuate Switch AND ESSENTIAL HVAC SYSTEM l-HS-12195A on QHVC to and place Train a Control ACTUATE.

Room Filter Unit is 73rvice.

B9.

Start Train A Electrical B9.

Initiate 13302-1, CONTROL Penetration Room Filter BUILDING ESF VENTILATION Exhaust Fan using SYSTEMS and place Train A 1-HS-2554 on QHVC.

Electrical Penetration Area Filter Exhaust Unit in service.

(S k) 1

__ =_-

PAoCEDunE NO.

REVISION FAGE NO VEGP 13034-1 1

31 of 59 s

I ACTION / EXPECTED RESPONSE RESPONSE NOT'0BTAINED B10. Start Train A Piping B10. Initiate 13305-1, AUXILIARY Penetration Filter Exhaust BUILDING HVAC SYSTEM and Fan using 1-HS-2548 on place Train A Piping QHVC.

Penetration Filter Exhaust Unit in service.

NOTE Step B11 applies only, IF the Train B Diesel Generator is still running and Bus 1BD1 has not been re-energized.

Bll. De-energize or stop the following:

a. De-energize the Generator Space Heater:

e Control Switch in OFF, OR e

INBO-13 OPEN.

I

)

b. Stop the Jacket Water Keep-Warm Pump:

Control Switch in OFF, o

OR 1NBI-17~0 PEN.

e

c. Stop the Lube Oil Keep-Warm Pump Control Switch in OFF, e

OR e

1NBO-13 OPEN.

d. De-energize the Jacket Water Heater:

e Control Switch in OFF, OR e

INBO-17 OPEN.

e. De-energize the Lube 011 Heater:

^'

'~

e Control Switch in OFF, OR e

INBO-lE~OPEN.

1 PROCEDUmE No.

REVISION PAGE N0.

VEGP.

18034-1 1

32 of 59

^*

(}

ACTION / EXPECTED _ RESPONSE RESPONSE NOT 0BTAINED B12. Inform-the Radwasto Building-Operator that steam to the Radwaste System has been isolated.

B13. Check ?ower to Bus IBD1 -

B13. Return to Step B6.

k RESTOR ED. -

B14. Re-establish power to Diesel DGlB Generator accesseries if applicable,

a. Energize Generator

. Space = Heater e: 1NBO-18 CLOSED, e

Control Switch in AUTO.

b Energize theJJacket-

Water Keep-Warm Pump:

e-INBO-12 CLOSED,-

e Control Switch'in

AUTO.

i i

c. Energize the Lube 011 Keep-Warm Pump e-INBO-15 _ CLOSED, e

Control' Switch in-AUTO. :

d.-Energize thelJacket Water Heater:-

1 e -lNBO CLOSED, e

Control Switch in-AUTO.

e. Energize the Lube Oil Heater:

-1NBO-16 CLOSED,

,e Os e

Control. Switch in-

-AUTO.

9.

PROCEDURE No.

REVISloN PAGE No.

VEGP 18034-1 1

33 of $9

)

ACTION / EXPECTED RESPONSE RESPONSE NOT OBTAINED B15. Establish instrument air to the Containment:

o 1-HV-9378 OPEN.

B16. Establish Normal Letdown B16. Initiate 13008-1, CHEMICAL by initiating 13006-1, AND VOLUME CONTROL EXCESS CHEMICAL AND VOLUME CONTROL LETDOWN and establish excess SYSTEM STARTUP AND NORMAL letdown.

OPERATION.

B17. Return 120V AC Instrument Panels 1BY1B and IBY2B to their normal supply by initiating 13431-1, 120V AC VITAL INSTRUMENT DISTRIBUTION SYSTEM.

B18. Return Control Room ventilation to normal x

operation by initiating 13301-C, CONTROL BUILDING CONTROL ROOM NORMAL AND ESSENTIAL HVAC SYSTEM.

B19. Re turn Fuel Handling ventilation to normal operation by initiating 13320-C, FUEL HANDLING BUILDING HVAC SYSTEM.

B20. Return the Electrical Penetration Filtration and Exhaust System to normal operation by initiating 13302-1, CONTROL BUILDING ESF VENTILATION SYSTEMS.

/

PROCEDURE No.

REVISION PAGE NO.

VEGP 18034-1 1

34 of 59

^

)

ACTION / EXPECTED RESPONSE RESPONSE NOT OBTAINED B21. Return the Piping Penetration Filtration and Exhaust System to normal operation by initiating 13305-1, AUXILIARY BUILDING HVAC SYSTEM.

B22. Align systems and components as required for present operational mode, END OF SUB-PROCEDURE TEXT

./

-'N

<s

PROCEDURE NO-REVISION PAGE NO.

VEGP 18034-1 1

35 of 59 Sheet 1 of 17 i,)

ATTACHMENT B LOSS OF 125V DC BUS IBD1 EOUIPMENT RESPONSE DUE TO LOSS OF TRAIN B 125V DC POWER e

Main Fuedwater Isolation, Isolation Bypass, Main Flow Control, and Startup Flow Control Valves close resulting in feedwater isolation.

Main Steam Isolation and Isolation Bypass Train B Valves e

close resulting in steam line isolation, e

Reactor and Turbine trip occurs from loss of main feedwater, e

Control Power is lost to IBA and IBB BI akers.

e Diesel Generator DGlB Control Power to Generator Control Panel PDG3 and Engine Control Panel PDC 4 is lost rendering the Diesel Generator inoperable: if running, it will fail as is with a loss of electrical protective trips, frequency, and voltage control.

Due to loss of power to the Low Saeed Relay, the generator space,

_s

')

Engine Lube 011 and Jacket Water leaters, and Lube Oil and Jacket Water Keep-Warm Pumps will come on.

e Power to Inverters 1BDlIl and 1BDlIl2 is lost causing 120V AC Vital Busses 1BYlB and 1BY2B to de-energize.

e Instrument Air Containment Isolation Valve 1-HV-9378 closes resulting in loss of instrument air inside Containment.

Power to Isolation Panel lECQIP2 is lost rendering the e

annunciators in Train B inoperable.

NOTE Feeder Breakers must be manually controlled in the event the tree-fer to an alternate power supply is required.

-IF Te Diesel Generator (DGlB) is not running, it may not be selected as an alternate power source.

(-

5 x,.

W

  • +

~

+- ROC E DU A E NO.

REVISION PAGE No VECP 18034-1 1

36 of 59 Sheet 2 of 17

, ~)

v' ATTACH 11ENT B LOSS OF l'5V DC BUS IBD1 LOSS OF 1BA03 BUS BREAKER CONTROL DUE TO LOSS OF 125V DC TO 1BD11 The following 1BA03 Bus Feeder Breakers will fail as aligned prior to loss of Bus 1BDl:

IBA03-01 Normal Power from RAT XFIIR Normally Closed 1NXRB 1BA03-19 Emergency Backup from Diesel Normally Open Generator (DGlB)

NOTE Output Breakers must be manually controlled in order to START /STOP the following listed pumps or to ENERGIZE /DE-ENERGIZE 480V Load Centers 1BB06, IBB07 and 1BB16.

IBA03-07 NSCWP 2 l

1 1BA03-08 CCWP 2 1BA03-10 RHRP B 1BA03-ll NSCWP 4 IBA03-12 CCUP 4 1BA03-13 CCP B 1BA03-14 CSP B 1BA03-15 NSCWP 6 1BA03-16 CCWP 6 1BA03-17 SIP B 1BA03-20 ACCWP B 1BA03-21 MDAFWP B 1BA03-22

.8 ESF CHLR B q,)

IBA03-04 Supply to Load Center 18B07 IBA03-06 Supply to Load Center 18B06 IBA03-09 Supply to Load Center 18816 lBA03-18 Supply to Load Center INB10

P..COEOUmE No.

REVISION PAGE NO VEGP 10034-1 1

37 of 59 Sheet 3 of 17

)

ATTACHMEffr B LOSS OF 125V DC BUS 1BD1 LOSS OF IBB06 BUS BREAKER CONTROL DUE TO LOSS OF 125V DC TO IBDil NOTE The following Feeder and Output Breakers must be manually controlled at IBB06 Bus.

1BB06-01 IBB06 Bus Feeder Breaker IBB06-02 1BB06 Feeder to MCC-1BBE IBB06-04 CC Fan 3 Hi Speed IBB06-05 CC Fan 3 Low Speed IBB06 -0 8 CC Fan 4 Hi Speed

' )

1BB06-09 CC Fan 4 Low Speed u.

1DB06-12 CC Fan 7 Hi Speed 1BB06-13 CC Fan 7 Low Speed 1BB06-16 CC Fan 8 Hi Speed 1BB06-17 CC Fan 8 Low Speed

,j

P.;OCEDUAE NO.

REVISION PAGE NO VECP 18034-1 1

38 of 59 Sheet 4 of 17 O

^rricunzar 8 LOSS OF 125V DC BUS IBD1 LOSS OF 1BB07 BUS BREAKER CONTROL DUE TO LOSS OF 125V DC TO 1BD11 NOTE The following Feeder and Output Breakers must be manually controlled at 1BB07 Bus.

1BB07-01 1BB07 Bus Feeder Breaker 1BB07-02 1BB07 Feeder to M.CC-1BBA 1BB07-04 CBCR Fitr Unit 2 1BB07-05 IBB07 Feeder to MCC-1BBC IBB07-06 CBCE Her 2

( }-

1BB07 CTB H Recombiner 2 2

1BB07-09 CB Elect Pen Fltr Unit Fan 2 IBB07-12 DG1B Vent Fan 2 1BB07-13 DGlB Vent Fan 4 1BB07-14 1BB07 Feeder to MCC-1BBF O

4

~

PROCEDumE No.

REVISION PAGE NO VEGP 18034-1 1

39 of 59 Sheet 5 of 17

()

ATTACHMENT B LOSS OF 125V DC BUS IBD1 LOSS OF IBB16 BUS BREAKER CONTROL DUE TO LOSS OF 125V DC TO IBD11 K]TE The following Feeder and Output Breakers must be manually controlled at IBB16 Bus.

1BB16-01 1BB16 Bus Feeder Breaker 1BB16-04 Fipe Pen Fltr & Exh Unit Her 2 1BB16-05 NSCW Clg Twr Tr B Fan 1 1BB16-16 NSCW Clg Twr Tr B Fan 2 1 Bbl 6-08 NSCW Clg Twr Tr B Fan 4

('~ }

IBB16-09 1BB.16 Feeder to MCC-1BBB 1BB16-10 1BB16 Feeder to MCC-1BBD IBB16-12 Spent Fuel Pit Pump 5 1BB16-13 NSCW Clg Twr Tr A Fan 5 1BB16-14 Pipe Pen Fitr 7 Exh Unic Fan 2

,/GI I

IFRCCEDURE No.

REVISloN PAGE No

\\TCP 18034-1 1

40 of 59 Sheet 6 of 17

(

ATTACHMENT B LOSS OF 125V DC BUS 1BD1 LOSS OF INSTRUMENT AIR TO CONTAINMENT DUE TO LOSS OF 125V DC TO 1BD12 FAILED POSITION REACTOR COOLANT SYSTEM 1-HV-8032 Reactor Vessel Flange Leakoff Open WASTE PROCESSING SYSTEM - LIQUID l-HV-7127 RCDT To Drain Pump Suction Open 1-HV-7144 RCDT Recirc Isolation Valve Open CONTAINMENT AND AUXILIARY BUILDING DRAINS - RADIOACTIVE l-HV-17091 CTB Cooling Units To CNMT Sump Open 1-HV-17095 CTB Cooling Units To CNMT Sump Open MAIN STEAM SYSTDi 1-PV-5238 Steam Generator N, Blanketing System Open 1-PV-5239 Steam Generator N' Blanketing System Open 2

1-PV-5240 Steam _ Generator N,3 Blanketing System Open 1-PV-5241 Steam Generator N' Blanketing System Open 2

1-PV-15250 Steam Generator N,3 Blanketing System Open 1-PV-15252 SteamGeneratorN}BlanketingSystem Open i

,s m

.J 1

]

W

PROCEDURE NO.

RIEVISION PAGE NO.

VEGP 18034-1 1

41 of 59 Sheet 7 of 17

')

ATTACHMENT B LOSS OF 125V DC BUS IBD1 LOSS OF INSTRUMENT AIR TO CONTAINMENT DUE TO LOSS OF 125V DC TO IBD12 FAILED POSITION REACTOR COOLANT SYSTEM l-PV-0455B Pressurizer Spray Isolation Valves Closed 1-PV-0455C Pressurizer Spray Isolation Valves Closed 1-HV-8145 Pressurizer Spray Isolation Valves Closed 1-HV-8031 PP.T Drain To The RCDT Closed 1-HV-8047 PRT Vent To The WGDT Closed 1-HV-8030 RMWST Fill To The PRT Closed 7,

s_

l PHOCEDUNE No REvtSION PAGl hG VEGP 18034-1 1

42 of 59 Sheet 8 of 17

()

ATTACHMENT B LOSS OF 125V DC BUS 18D1

' LOSS OF INSTRUMENT AIR TO CONTAINMENT

.7UE TO LOSS OF 125V DC TO IBD12 FAILED POSITION CHEMICAL AND VOLUME CONTROL SYSTEM 1-LV-0178 RCP Standpipe Fil'. Valves Closed 1-LV-0179 RCP Standpipe Fill Valves Closed 1-LV-0180 RCP Standpipe Fill Valves Closed 1-LV-0181 RCP Standpipe Fill Valves Closed 1-HV-8141A Number 1 RCP Seal Leakoff Valves Closed 1-HV-8141B Number 1 RCP Seal Leakoff Valves Closed 1-HV-8141C Number 1 RCP Seal Leakoff Valves Closed 1-HV-8141D N,nber 1 RCP Seal Leakoff Valves Closed

(^T 1-LV-0459 RCS Letdown Isolation Valves Closed

(_)

1-LV-0460 RCS Letdown Isolation Valves Closed 1-HV-8149A RCS Letdown Isolation Valves Closed 1-HV-8149B RCS Letdown Isolation Valves Closed 1-HV-8149C RCS Letdown Isolation Valves Closed 1-HV-15214 RCS Letdown Isolation Valves Closed 1-HV-8160 RC3 Letdown Isolation Valves Closed 1-HV-8153 RCS Excess Letdown Isolation Valves Closed 1-HV-8154 RCS Excess Letdown Isolation Valves Closed 1-HV-0123 RCS Encess Letdown Isolation Valves Closed 1-HV-8143 RCS Excess Letdown Divert Valve To VCT

PPoCEDU,-E No GEY:510 4 PAGE No VECP 18034-1 1

43 of 59 Sheet 9 of 17

()

ATTACHMENT B LOSS OF 125V DC BUS IBig LOSS OF INSTRLUENT AIR TO CONTAINMENT DUE TO LOSS OF 125V DC TO 1BDl2 FAILED POSITION SAFETY INJECTION SYSTE!!

1-HV-6878A Accumulator Fill Isolation Valves Cloned i

1-HV-8878B Accumulator Fill Isolation Valves Closed 1-HV-8878C Accumulator Fill Isolation Valves Closed 1-HV-8878D Accumulator Fill Isolation Valves Closed 1-HV-8871 SIS Check Valve And System Test Line Closed Isolation Valves 1-HV-8881 SIS Check Valve And System Test Line Closed Isolation Valves 1-HV-83 SIS Check Valve And System Test Line Closed Isolation Valves (l

1-HV-8824 SIS Check Valve And System Test Line Closed KJ Isolation Valves 1-HV-8825

  • SIS Check Valve And System Test Line Closed Isolation Valves 1-HV-8843 SIS Check Valve And System Test Line Closed Isolati.on Valves 1-HV-8877A, SIS Check Valve And System Test Line Closed B,C, and D Isolation Valves 1-HV-8879A, SIS Check Valve And System Test Line Closed B,C, and D Isolation Valves 1-HV-8882 SIS Check Valve And System Test Line Closed Isolation Valves 1-HV-8889A, SIS Check Valve And System Test Line Closed B,C, and D Isolation Valves 1-HV-8890A SIS Check Valve And System Test Line Closed and B Isolation Valves

-gS l

~]

l

enoccou s no.

Itvision esos no.

VECP 18034-1 1

44 of 59 Sheet 10 of 17 ATTACHMENT B

[)

_ LOSS OF 125V DC BUS IBD1 LOSS OF INSTRUMENT AIR TO CONTAI!RIENT DUE TO LOSS OF 125V DC TO 1BD13 FAILED POSITION WASTE PROCESSING SYSTEM - LIQUID 1-HV-7699 RCDT Pumps Discharge Containment Closed Isolation Valve 1-HV-1003 RCDT Level Control Valve Closed 1-HV-7126 RCDT Vent To GWPS Closed 1-HV-7143 -

RCDT Recire Valve closed

()

1-HV-7141 RCDT To PRT Isolation Valve Closed NUCLEAR SAMPLING SYSTEM - LIQUID 1-HV-3507 Pressurizer Liquid And Steam Space Closed Sample Isolation Valves 1-HV-3513 Pressurizer Liquid And Steam Space Closed Sample Isolation Valves 1-HV-3501 RCD Hot Leg 3 To Failed Fuel Closed Detector Isolation Valve

-p v

Ans_M rw-

emoctDuaE NV.

REVISION PAGE No VECP 18034-1 1

45 of 59 Sheet 11 of 17 ATTACHMENT B Ot LOSG OF 125V DC BUS IBD1 LOSS OF INSTRUMENT AIR TO CONTAINMENT DUE TO LOSS OF 125V DC TO 1BD12 FAILED POSITION CONTAINMENT AND AUXILIARY BUILDING DRAINS - RADIOACTIVE 1-HV-0780 Reactor Cavity And CNMT Sumps Cluaed Discharge Isolation Valve I

STEAM GENERATOR BLOWDOWN SYSTEM 1-HV-15212A Steam Generator Blowdown' Isolation Closed Valves 1-HV-15212B Steam Generator Blowdown Isolation Closed Valves

.1-HV-15212C Steam Generator Blowdown Isolation Closed Valves 1-HV-15212D Steam Generator Blowdown Isolation Closed

(]-

Valves 1-HV-15216A Steam Generator Blowdown Isolation-Closed Valvec 1-HV-15216B lteam Generator blowdown Isolation Closed Valves 1-HV-15216C Steam Generator Blowdevn Isolation Closed Valves 1-HV-15216D Steam Generator Blowdown Isolation Closed Valvca CONTAINMENT PURIFICATION AND CLEANUP SYSTEM 1-HV-2626B CNMT Mini-Purge Supply Isolation Closed Damper 1-HV-2628B CNMT Mini-Purge Exhaust Isolation Closed Damper 1-HV-12985 CTB Preaccess Filter Unit Diluge Closed 1-HV-12987 CTB Preaccess Filter linit Diluge Closed m e t,

. ROCE DUPE NO.

GEYlSION PAGE NO VEGP 18034-1 1

46 of 59 Sheet 12 of 17 7

ATTACILMENT B L)

LOSS OF 125V DC TO BUS IBD1 TRAIT! B ANNUNCIATOR ALARMS LOST DUE TO LOSS OF 125V DC TO IBCQIP2 FROM IBD12 ALARM BOARD / WINDOW DESCRIPTION ALB02-F4 RX MAKEUP STOR TK HI/LO LVL ALB03-B1 NJCW TRAIN B Lo llDR PPESS ALB03-B2 NSCW TRAIN B TRANSF PhP LO DISCl! PRESS ALB03-D2 flSCW TRAIN B CUMT CLR 354 LO FLOW ALB03-E2 NSC" TRAIN B CbMT CLR 768 LO FLOW ALB03-F2 NSCW TRN B RX CVTY CLG COIL LO FLOW ALB03-C3 NSCW TRAIN B DG CLR LO FLOW ALB03-E3 NSCW TRAIN B NOR!!/BYP VLV MISPOSITIONED l

)

V ALB03-C4 NSCW TRAIN B RilR PMP 5 MTR CLR LO FLOW ALB03-A5 CCW TRAIN B SURGE TR LO-LO LVL ALB03-E5 CCW TRAIN B RHR PMP SEAL LO FLOW ALB03-A6 CCW TRAIN'B LO HDR PRESS ALB03-B6 CCW TRAIN B LO FLOW ALB03-D6 CCW TRA1N B RliR HX LO FLOW ALB04-E2 TRAIN B SYS STATUS NON PNL ALERT ALB04-F4 TRAIN B SilUTDOWN PNL ON LOCAL CNTL ALB04-F5 TRAIN C SHUTDOWN PNL ON LOCAL CNTL (3

C/

1e

FROCEDURE NO.

Evasion PAGENo VEGP 18034-1 1

47 of 59 Sheet 13 of 17

('-)

ATTACHMENT B

~

L_0SS OF 125v DC To BUS IBD1 TRAIN B ANNUNCIATOR ALAIUtS LOST DUE TO LOSS OF 125V DC TO IBCQIP2 FRoli 1BD12 ALARM BOARD / WINDOW DESCRIPTION ALB05-A5 GROUP 1 MONITOR LIGHT COMP OFF NOPJi ALB05-B5 GROUP 2 ff0NITOR LIGHT C0!iP OFF NORM ALB05-C5 GROUP 3 MONI. TOR LIGHT COVP OFF NORM ALB05-D5 GROUP 4 MONITOR LIGHT C0!!P OFF NORM ALB05-E5 GROUP c unNITOR LIGHT COMP OFF NORM ALB06-Cl RHR PL 05:' ih - '? ~ aP J

ALB06-F6 SI PMP OVEttLJAD TRIP

)

ALB07-C6 CHARGING PUMP OVERLOAD TRIP ALB12-F4 PCV-456 OPEN SIGNAL ALB12-F6 B COLD OP ACTU VLV HV-8000B NOT FULL OPEN AL314-A6 MN STM LOOP 1 TRN B ISO VLV GAS LO PRESS ALB14-B6 MN STM LOOP 2 TRN B ISO VLV GAS LO PRESS ALB14-C6 MN S m LOOP 3 TRH B ISO VLV GAS LO PRESS ALB14-D6 MN STM LOOP 4 TRH B ISO VLV GAS LO PRESS ALB14-F6 MN STM ISO VALVES NOT FULL OPEN ue

/It14 4'

PROCEDURE NO.

REVISION

PAGENO, VEGP 18034-1 1

48 of 59 Sheet 14 of 17 C'T ATTACRMENT B U

LOSS OF 125V DC TO BUS 1BD1 TRAIN B ANNUNCIATOR ALARMS LOST DUE TO LOSS OF 125V DC TO 1BCQIP2 FROM IBD12 ALARM BOARD / WINDOW DESCRIPTION ALBIS~Al MN STM LOOP 1 TRN B ISO VLV TROUBLE ALB15-B1 MN STM LOOP 2 TRN B ISO VLV TROUBLE ALBIS-C1 MN S*IN LOOP 3 TRN B ISO VLV TROUBLE ALB15-D1 MN STM LOOP 4 TRN B ISO VLV TROUBLE ALB16-F5 AW AUTO START MFPT TRIP RLY CNTRL PWR LOSS ALB16-E6 AFW P-3 DISCH HDR LO PRESS ALB34-B1 125V DC SWGR 1BD1 TROUBLE o

ALB34-Cl 120V AC PANELS IBYlB 1BY2B TROUBLE ALB34-B2 125V DC MCC IBDlM TROUBLE ALB34-C2 INVERTERS IBD112 IBDlI12 TROUBLE ALB34-B3 125V LC PNL 1BDil TROUBLE ALB34-C3 125V DC PNL 1BD12 TROUBLE ALB34-B4 BAT CHARGERS IBDICA IBDICB TROUBLE ALB34-A6 13.8KV SWGR 1AAA TROUBLE ALB34-B6 13.8KV SWGR 1BAB TROUBLE ALB34-A7 13.8KV SWGR 1CAC TROUBLE ALB34-B7 13.8KV SWGR 1 DAD TROUBLE O

P,;OCEDUAE NO.

REVISION PAGE NO VEGP 18034-1 1

49 of $9 Sheet 15 of 17 ATTACIIMENT B LOSS OF 125V DC TO BUS 1801 TRAIN B ANNUNCIATOR ALARMS LOST DUE TO LOSS OF 125V DC TO IBCQIP2 FROM 1BD12 ALARM BOARD / WINDOW DESCRIPTION ALB36-E2 BAT 1BD1B BRKR OPEN ALB37-Al 4160V SWGR 1BA03 TROUBLE ALB37-B1 4160V SWGR 1BA03 NEG PH SEQ BUS PT ALB37-C1 480V MCC 1BBA TROUBLE ALB37-D1 480V MCC IBBD TROUBLE ALB37-El 4160/480V SWGR TRN B TRANSFER SW ON LOCAL ALB37-A2 480V SWCR 1BB06 TROUBLE ALB37-B2 480V SWGR 1BB16 TROUBLE ALB37-C2 480V MCC 1BBB TROUBLE ALB37-D2 480V MCC IBBE TROUBLE ALB37-F2 ISO DEVICE PNL TRN B QIP6 TROUBLE ALB37-A3 480V SWGR 1BB07 TROUBLE ALB37-B3 SEQ B PNL DOORS OPEN ALB37-C3 480V MCC IBBC TROUBLE ALB37-D3 480V MCC IBBF TROUBLE ALB37-F3 ISO DEVICE PNL TRN B QTP2 TROUBLE

PROCEDUAE NO.

HEVISION PAGE NO VEGP 18034-1 1

50 of 59 Sheet 16 of 17 ATTACHMENT B LOSS OF 125V DC TO BUS IBD1 TRAIN B ANNUNCIATOR ALARMS LOST DUE TO LOSS OF 125V DC TO 1BCQIP2 FROM 1BD12 ALARM BOARD / WINDOW DESCRIPTION ALB50-B3 CR HI/LO DIFF PPESS ALB50-B5 CR TRAIN B FLTR TROUBLE ALB50-A8 BAT RM TRN B SPLY FAN LO AIR FLOW ALB50-B10 ELECT PEN TRAIN B FLTR TROUBLE ALB51-B2 NSCW TRN B CBL TUNNEL HI TEMP ALB51-A5 SWGR 1BB16 RM 111 TEMP ALB51-B5 MCC 1BBD ROOM HI TEMP ALB51-C5 MCC IBBB RM HI TEMP ALB51-D5 RHR TRAIN B PMP RM 111 TEMP ALB51-E5 CCS TRAIN B PMP RM HI TEMP ALB52-Al CCW TRAIN B PMP RM HI TEMP ALB52-B1 CVCS TRAIN B PMP RM Hi TEMP ALB52-C1 SI TRAIN B PMP RM ll! TEMP ALB52-D1 SFCS & IC( TRAIN B RM HI TEMP ALB52-B3 PIPE PEN TRAIN B FLTR TROUBLE ALB52-D8 CNMT POST LOCA F-2 LO AIR FLOW A

P ;OCEDJ< E NO.

REVI;10N PAGE NO.

VEGP 18034-1 1

51 of 59 Sheet 17 of 17 ATTAC104ENT B LOSS OF 125V DC TO BUS IBD1 TRAIN B ANNUNCIATOR ALARMS LOST DUE TO LOSS OF 125V DC TO 1BCQIP2 FR0!! 1BD12 ALARM BOARD /VINDOW DESCRIPTION ALB53-A3 AFW TRN B PHP HOUSE HI TEMP ALB53-C3 AFW TRN B Pl!P HOUSE LO AIR FLOW ALB53-C8 CHLR TRN B EVAP WTR HI/LO TEMP ALB53-D8 CHLR TRN B EVAP OR COND WTR LO FLOW ALB53-E8 CHLR TRN B TROUBLE ALB54-A2 FHB POST ACCIDENT FLTR 2 TROUBLE ALB54-F2 FHB AREA LO DIFF PRESS ALB61-D6 LVL B LEAK DETECTED ALB61-E6 LVL C LEAK DETECTED ALB61-F6 LVL D LEAK DETECTED ALB62-F6 CNMT H MON TRAIN B ALERT 2

END OF ATTACIU4ENT B Il !8 $ ('..

PROCEDumE NO HEVISION PACE No VEGP 18034-1 1

52 of 59

-)

C.

LOSS OF 125V DC BUS 1CD1 SYMPTOMS e

125V DC Vital Bus ICD 1 voltage low, Loss of power to ICY 1A 120V AC Vital Instrument Panel, e

o TDAFW Pump loss of control and indication.

ACTION / EXPECTED RESPO!JSE RESP 0fiSE l'OT OBTAI!1ED CAUTION IF TDAFW Pump is not running, it can only be started by T5 cal manual per 13610-1, AUXILIARY FEEDWATER SYSTEM.

IF TDAFW Pump is running, it may overspeed because Epeed Governor Valve 1-SV-15133 fails full open.

5

)

NOTE See Attachment C for Equipment Responses and Annunciator Failures.

C1.

Dispatch an operator to C1.

Initiate 18032-1, LOSS OF restore power to 120V AC 120V AC INSTRUl!EllT POWER Instrument Panel ICYlA.

Sub-procedure E,

n. Open Normal Feeder Breaker from Inverter ICDlI3:

e ICY 1A-02.

b. Ensure the Regulated Transformer Supply Breaker for lABA07X is CLOSED:

e 1ABA-07,

c. Close Alternate Source lh)

Breaker to LCYlA instrument panel e

ICYlA-01.

^

PRoCEDU 4 No.

KEVISION FAoE No.

VEGP 18034-1 1

53 of 59 ACTION / EXPECTED RESPONSE RESPONSE NOT OBTAINED C2.

IP an RCP 3 undervoltage C2.

IF the aump does not tri

?

or underfrequency UIspatei an operator to

>SDB condition arises, trip the to trip the pumpi pump using 1-HS-0497B on QMCB.

e 1 -11S - 0 4 97D.

C3.

Dispatch an operator to C3.

Initiate 13405-1, 125V DC 1E

~

restore power to Bus 1CDl.

EL"CTRICAL DISTRIBUTION SYSTEM.

a. Ensure Bus Feeder Breakers are CLOSED:

e ICD 1 From o

Continue attempts to Battery ICDlB.

restore power to ICD 1.

e ICDl From Charger 1CDICA, e

ICD 1-07, From Charger ICDICB.

b. Ensure Panel Feeder

()

Breakers are CLOSED:

e ICDl Feeder to

ICDil, e

ICDl Feeder to ICD 1M.

C4.

Power restored to Bus ICD 1.

C4.

Go to Step C2.

C5.

Return 120V AC Instrument Panel ICYlA to its normal supply by initiating 13431-1, 120V AC VITAL INSTRUMENT DISTRIBUTION SYSTEM.

C6.

IF applicable, return the

. T5AW Pump to normal operation by initiating 13610-1, AUXILIARY FEEDWATER SYSTEM.

, 6 ; l J',

PROCEDUME NO.

REV10lON PAGE NO.

VEGP 18034-1 1

54 of 59 ACTION /E:PECTED RESPONSE RESPONSE NOT OBTAINED C7.

Restore the Auxiliary Feedwater Ventilation System to nonnal operation i

by initiating 13325-1, AUXILIARY FEEDWATER PUMP HOUSE AND DIESEL UENERATOR HVAC SYSTEMS.

END OF SUB-PROCEDURE TEXT i

h

[

[

h l

l l

O

PROCEDUJ NO.

GEVISloN FAGE No VEGP 18034-1 1

55 of 59 r

Sheet 1 of 2 ATTACin!ENT C LOSS OF 125V DC BUS ICD 1 EQUIPMENT RESPONSE DUE TO LOSS OF TRAIN C 125V DC POWER Power to Inverter ICD 113 is lost causing 120V AC Vital Bus ICY 1A e

to de-energize.

e TD/.FW Pump Mechanical Trip and Throttle Valve 1-PV-15129 will fail as is with no control capability, TDAFW Pump Speed Governor Valve 1-SV-15133 will fail full open.

e Power to Isolation Panel. ICCQIP3 is lost rendering the e

annunciators in Train C inoperable.

(

j

(

)

v l

3

P FPXEDURE NO HEVISION PAGE NO VEGP 18034-1 1

56 of 59 Sheet 2 of 2

( );

ATTACllMENT C LOSS OF 125V DC TO BUS 1CD1 TRAIN C ANNUNCI ATOR ALARMS LOST DUE TO LOSS OF 125V DC TO ICCQIP3 FROM 1CDll ALARM BOARD / WINDOW

,D_ESCRIPTION ALB04-F1 TRAIN C SYS STATUS MON PNL ALERT ALB04-F3 TRAIN A SitUTDOWN PNL ON LOCAL CNTL ALB04-F4 TRAIN B SilVTDOWN PNL ON LOCAL CNTL ALB04-F5 TRAIN C SilVTDOWN PNL ON LOCAL CNTL ALB05-B5 GROUP 2 MONITOR LIGliT COMP OFF NORM ALB05-D5 GROUP 4 MONITOR LICitT COMP OFF NORM ALB16-E3 AFW TURB PNL CNTL PWR LOSS

)

ALB16-F3 AFW TURB OVERSPEED MECH TRIP ALB16-E4 AFW P-1 DISCH HDR LO PRESS ALB16-F4 AFW TURB OVERSPEED ELEC TRIP ALB34-F3 125V DC SWGR 1CD1 TROUBLE ALB34-D4 BAT CHARGERS ICDICA ICDICB TROUBLE ALB34-F4 INVERTER 1CDlI3 TROUBLE ALB34-D5 125V DC MCC 1CDlM TROUBLE ALB34-E5 120V AC PNL ICYlA TROUBLE ALB34-F5 125V DC PNL 1CDL1 TROUBLE ALB34-E6 STARTER ICD 115N TROUBLE ALB34-F6

!NVERTER 1CD115 TROUBLE ALB34-A7 13.8KV SWGR ICAC TROUBLE

)

~

ALB36-E BAT ICDlB BRER OPEN ALB36-F4 ISO DEVICE Ptil TRN C QIP3 TROUBLE END OF ATTACHMENT C

f pro (,LDURE No, HEVISION PAGE NO-VEGP 18034-1 1

57 of 59

(%

\\,1 D.

LOSS OF 125V DC BUS 1DD1 SYMPTOMS 125V DC Vital Bus 1DDI voltage low.

e Loss of power to IDY1B 120V AC Instrument Panel.

e ACTION / EXPECTED RESPONSE RESPOUSE NOT OBTAINED NOTE See Attachment D for E Annunciator Failures. quipment Responses and D1.

Dispatch an operator to D1.

Initiate 18032-1, LOSS OF restore power to 120V AC 120V AC INSTRUMENT POWER

-()

Instrument Panel IDY1B.

Sub-procedure F.

w

a. Open Nornal Feeder Breaker from Inverter IDD1I4:

e 1DYlB-02.

b. Ensure the Regulated Transformer Supply Breaker for 1BBC09X is CLOSED:

e 1BBC-09.

c. Close Alternate Source Breaker to 1DY1B Instrument Pancl:

e 1DY1B-01.

D2.

IF an RCP-4 undervoltage D2.

IF the aump does not trip, or underfrequency Hispacea an operator te r~

condition arises, trip locally trip the pump:

(_},/

the auu? using 1-HS-0498B on tie ;4ain Control e

1-HS-0498D,

Board, 9

l h

PRoCEDU..E NO.

HLYtSION PAUL NO.

VEGP 18034-1 1

58 of 59 i

~'s ACTION /E::PECTED RESPONSE RESPONSE NOT OBTAINED (V

D3.

Dispatch an operator to D3.

Initiate 13405-1, 120V DC 1E restore power to Bus 1DDl.

ELECTRICAL DISTRIBUTION SYSTD1.

a. Ensure Bus Feeder e

Continue attempts to Breakers are CLOSED:

restore power to 1DDl.

e IDDl From Battery IDDlB, e

1DDl From Charger IDDICA, e

IDDl From Charger IDDICB.

b. Ensure Panel Feeder Breakers are CLOSED:

e IDD1 Feeder to IDDil.

D4.

Power restored to Bus IDDl.

D4 Co to Step D2.

DS.

Return 120V AC Instrument Panel 1DYlB to normal operation by initiating 13431-1, 120V AC VITAL INSTRlRENT DISTRIBUTION SYSTEM.

END OF SUB-PROCEDURE TEXT li 1

i m....

I O

PROCEDUmE NO GEVISION PAGE NO VEGP 18034-1 1

39 of 59 i

Sheet 1 of 1

')

ATTACHMENT D v

LOSS OF 125V DC TO BUS IDDI EQUIPMENT RESPONSE DUE TO LOSS OF TRAIN D 125V DC POWER e

Power to Inverter IDD114 is lost causing 120V AC Vital Bus 1DY1B to de-energize.

Power to Isolation Panel 1DCQIP4 is lost rendering the e

annunciators in Train D inoperable.

TRAIN D ANNUNCIATOR ALARMS LOST DUE TO LOSS OF 125V DC TO IDCQIP4 FROM IDDll ALARM BOARD / WINDOW DESCRIPTION ALB04-F3 TRAIN A SHUTDOWN PNL ON LOCAL CNTL ALB04-F4 TRAIN B SHUTDOWN PNL Oil LOCAL CIC*.

ALB05-B5 GROUP 2 MONITOR LIGHT C011P OFF NORM ALB34-B5 120V AC PNL IDYlB TROUBLE ALB34-C5 125V DC PNL IDDil TROUBLE ALB34-C6 BAT CHARGERS 1DDICA 1DDICB TROUBLE ALB34-B7 13.8KV SWGR IDAD TROUBLE ALB34-C7 125V DC SWGR 1DD1 TROUBLE ALB34-D7 INVERTER 1DDlI4 TROUBLE ALB34-E7 STARTER 1DDlI6M TROUBLE ALB34-F7 INVERTER IDD116 TROUBLE ALB36-E4 BAT 1DD1B BRKR OPEN ALB37-F4 ISO DEVICE PNL TRN D QIP4 TROUBLE

}

(~___

END OF ATTACHMENT D

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