ML20092F910

From kanterella
Jump to navigation Jump to search
Rev 8 to Emergency Operating Procedure 19101-C, ECA-0.1 Loss of All AC Power Recovery W/O SI Required
ML20092F910
Person / Time
Site: Vogtle Southern Nuclear icon.png
Issue date: 07/26/1989
From: Bockhold G
GEORGIA POWER CO.
To:
Shared Package
ML20092F288 List: ... further results
References
CON-IIT05-042-90, CON-IIT5-42-90, RTR-NUREG-1410 19101-C, NUDOCS 9202190554
Download: ML20092F910 (20)
v • d • e


Text

_._ _..._

l

'0 Approval i

P70C9 dure No, Vogtle Electric Generating Plant 19101-C l

NUCLEAR OPERATIONS ost.

8 Unit - COMMON Georgia Pbwer e.Y "&c 20 i

1 4

O c'-t ! ;

Qi)

EMERGENCY OPERATING PROCEDURE

~ '

7*'

i N

EE ECA-0,1 LOSS OF ALL AC POWER RECOVERY WITHOUT SI REQUIRED c=3 EE

, PURPOSE 1

CCD 1

This procedure provides actions to use normal operational j

a:::I:"

systems to stabilize plant conditions following restoration l

ng of AC emergency power.

uun-1 CC

{C3 ENTRY CONDITIONS EE 19100-C, ECA-0.0 LOSS OF ALL AC POWER, Step 27.

e CC c=3 L.,A i

I i

i a

j l

1 4

9202190554 920116 PDR ADOCK 05000424 g

PDR P::l310ta adC511)

..,.... -... -. ~.-.

~.

PXoCEDURE No.

REVIStoN PAGE No.

VEGP 19101-C 8

2 of 20 ACTIONS / EXPECTED RESPONSE RESPONSE NOT OBTAINED

~

NOTE CSFSTs should be monitored for information only.

FRPs should not be implemented prior to completion of Step 9.

1.

Check RCP Seal Isolation Status:

a. RCP seal injection a.

IF valves open, isolation valves UR position NOT known, outside containment -

THEN check C F atatus:

SHUT:

-1) IF pump running,

~

o HV-8103A TREN go to Step 2.

e HV-8103B e

HV-8103C

2) IF pump NOT running, e

HV-8103D TREN manIUilly shut valves before starting CCP.

IF valves can NOT be Enually shut, THEN locally shut

valves,
b. ACCW return isolation
b. IF valve open, valve outside UR position NOT.known, containment - SHUT:

THEN check AUCR pump status:

e HV-1975

1) IF pump running, TREN go to Step 2.
2) IF pump NOT running, TREN manIUiTly shut valve.

IF valve can NOT be Enually shut, THEN manually shut ACCW return isolation valve inside containment:

e HV-1974 e

4

,. ~,

.,r.,

1 PAoCEDUAE No.

REVISloN PAoE No.

VEGP 19101-C 8

3 of.20 ACTIONS / EXPECTED RESPONSE-RESPONSE NOT OBTAINED 4

2.-

Check C'ontainment Phase A -

2.

Perform the following:

NOT ACTUATED.

a. Reset containment isolation Phase A.
b. Establish instrument air to containment:

JF instrument air pressure

-normal,-

THEN open containment Ti5Tation valve'HV-9378 and go to Step 3.

IF instrument air pressure NOT normal, TREN perform the 73TTowing:

1) Start one air compressor by

-initiating 13710, SERVICE AIR SYSTEM.

2) WHEN-instrument air pressure is normal.

THEN open containment Ti6Tation; valve HV-9378 and go to Step 3.

l l

e e

PAoCEDURE No.

REVISloN PAGE No, VEGP 19101-C 8

4 of 20 l

ACTIONS / EXPECTED RESPONSE RESPONSE NOT OBTAINED CAUTION The loads placed on the energized AC emergency bus should not exceed the capacity of the power source.

NOTE ACCW Return Isolation Valve HV-1975 or HV-1974 should remain shut until RCP seal temperature is less than 220*F.

3.

Verify Valve Alignment and Manually Load The Following Equipment On The Energized AC Emergency Bus:

i

a. Check NSCW System
a. Align NSCW System for alignment and start two normal operation by NSCW pumps, initiating 13150, NUCLEAR SERVICE COOLING WATER SYSTEM.

I

b. Check ACCW System
b. Align ACCW System for alignment and start normal operation.by one ACCW pump, initiating 13716, AUXILIARY COMPONENT COOLING WATER SYSTEM.

l l

l

- =

s e

FAOCEDURE No.

REVISloN PAGE NO.

VEGP 19101-C 8-5 of 20 ACTIONS / EXPECTED RESPONSE RESPONSE NOT OBTAINED, CAUTION Without instrument air available CCP suction should remain aligned to RWST.

c. Check CVCS valve alignment and start one CCP:
1) Check -valve alignment:
1) Manually align valves e

CCP suction valves from VCT - OPEN:

IF VCT NOT available, TREN establish suction e

LV-0112B from RWST:

e LV-0112C e

Open CCP suction e

VCT makeup control valves from RWST:

system - SET FOR GREATER THAN RCS e

LV-0112D BORON e

LV-0112E CONCENTRATION AND AUTOMATIC

CONTROL, e

Shut CCP suction valves from VCT:

Charging line e

isolation valves -

e LV-0112B SHUT:

e LV-0112C e

HV-8105 e

HV-8106

-e CCP normal miniflow isolation valves - OPEN.

2) Start One:CCP.
d. Start containment-fan coolers as necessary.

G

1 PMoCEDUAE No.

REVIStoN PAGE No.

VEGP 19101-C 8

6 of 20

_ ACTIONS / EXPECTED RESPONSE RESPONSE NOT OBTAINED, NOTE Without instrument air available charging should be established using Attachment A.

4.

Establish Charging Flow:

a. Set HC-0182 to maximum seal flow (HV-0182 - SHUT).
b. Open charging line isolation valves:

e HV-8105 e

HV-8106

c. Establish charging flow using control valves FV-0121 and HV-0182.

5.

Check ECCS Flow Not Required:

a. RCS subcooling monitor -
a. Go to 19102-C, ECA-0.2 GREATER THAN 24'F LOSS OF ALL AC POWER r

(38'F FOR ADVERSE CNMT).

RECOVERY WITH SI REQUIRED.

b. PRZR level - GREATER
b. Control charging-flow to THAN 9% (36% FOR maintain PRZR level.

ADVERSE CNMT].

IF PRZR level can NOT be Eaintained, THEN go to 19102-C, E 0.2 LOSS OF ALL AC.

POWER RECOVERY WITH SI REQUIRED.

6.

Check PRZR level - GREATER 6.

Control charging flow as-l THAN 19% (50% FOR ADVERSE necessary.

CNMT).

e I

l.

PXoCEDUXE No.

REVISloN PAGE No.

VEGP-19101-C 8

7 of 20 ACTIONS / EXPECTED RESPONSE RESPONSE NOT OBTAINED CAUTION e Alternate water sources for APW pumps will be necessary if CST level lovers to less than 15%.

e If SG narrow range level lowers to LESS THAN 5%

(27% FOR ADVERSE CNMT] and AFW flow is less than 570 gpm, the MDAFW pumps should be manually loaded on the AC Emergency Bus to supply water to the SGs.

NOTE If MDAFW pump operation is not required, pump switches should be maintained in PULL-TO-LOCK to prevent automatic start.

7.

Check Intact SG Levels:

a. Narrow range level -
a. Maintain AFW flow greater i

GREATER THAN 5%

than 570 gpm until-narrow

[27% FOR ADVERSE CNMT).

5% ge level GREATER THAN ran

,27% FOR ADVERSE CNMT]

in at least one SG.

l IF AFW flow NOT greater tHan 570 gpm, THEN establish AFW flow from the MDAW pumps by initiating 13610, i -

AUXILIARY FEEDWATER SYSTEM.

b. Control AFW flow to maintain narrow range level between 5%

[27% FOR ADVERSE CNMT) and 50%.

l e

I DQocEDURE No.

REVISloN PAGE NO.

VEGP 19101-C 8

8 of 20 ACTIONS / EXPECTED RESPONSE RESPONSE NOT OBTAINED 8.

Establish SG Pressure Controls

a. Set each SG ARV controller to maintain existing SG pressure,
b. Place each SG ARV controller in automatic
mode,
c. Locally return SG ARVs to remote control.

9.

Place Following Pump Switches In AUTO:

SI pumps, e

RHR pumps, e

e CS pumps, i

l l

l i

l l

O 1

I

PAoCEDUXE No, GEVIStoN PmGE No.

VEGP 19101-C 8

9 of 20 ACTIONS / EXPECTED RESPONSE RESPONSE NOT OBTAINED CAUTION e RCP thermal barrier cooling should be established slowly to minimize potential steam flashing of the ACCW System, e RCP seal injection should be established slowly to minimize RCP thermal stresses and potential seal failures.

e As a part of subsequent recovery actions, RCPs should not be started prior to a status evaluation.

NOTE FRPs may now be implemented as necessary.

10.

Establish RCP Seal Cooling:

I

a. Check RCP seal No.1
a. Restotle seal injection temperature - LESS flow using Attachment B.

THAN 220*F.

b. Open seal injection i

supply valves on affected RCP.

c. Control seal injection
c. IF charging was flow using FV-0121 and established using HV-0182.

Attachment A, L

THEN maintain 8 to 13 gpm seal injection flow by using appropriate section of Attachment A.

d. Open ACCW Return i

Isolation Valve (s):

e HV-1975 e

HV-1974 e

e o

1 PaoCEDUT4E No AEVISloN FAGE No.

VEGP 19101-C 8

10 of 20 ACTIONS / EXPECTED RESPONSE RESPONSE NOT OBTAINED 11.

Check If RCP Seal Return Flow Should~Be Established:

a. RCS pressure - GREATER
a. Go to Step 12.

THAN 100 PSIG.

b. Establish flow:
1) Open RCP seal return header isolation valves:

o HV-8100 o HV-8112

2) Verify seal return
2) Open RCP seal leakoff from each RCP -

valves as necessary:

NORIEL FOR RCP SEAL NUMBER 1 DIFFERENTIAL e

HV-8141A (RCP 1)

PRESSURE.

e HV-8141B (RCP 2) e HV-8141C (RCP 3) e HV-8141D (RCP 4)

NOTE Without instrument air available letdown should be established using Attachment C.

12.

Check If Letdown Can Be Established:

a. Check PRZR level-
a. Control charging as GREATER THAN 19%

necesnary.

WHEN PRZR

[50% FOR ADVERSE level GREATER TRAN 19%

CNMT).

[50% FOR ADVERSE CNMT)

TyEN do Step 12b.

Continue with Step 13.

b. Establish letdown by
b. Establish excess letdown initiating 13006, by initiating 13008, CHEMICAL AND VOLUME CHEMICAL AND VOLUME CONTROL SYSTEM STARTUP CONTROL SYSTEM EXCESS AND NORMAL OPERATION.

LETDOWN.

~

i k

PAoCEDUT.E No.

f.EVISloN PAGE No.

VEGP 19101-C 8

11 of 20 ACTIONS / EXPECTED RESPONSE RESPONSE NOT OBTAINED 13.

Contro1' Charging And Letdown Flow To Maintain PRZR Level Between 19% [50% FOR ADVERSE CNMT) And 50%.

14.

Establish PRZR Pressure Control:

a. Check letdown - IN
a. Use PRZR heaters and one SERVICE.

PRZR PORV to maintain RCS pressure.

Go to Step 15.

b. Use PRZR heaters and auxiliary spray to maintain RCS pressure.

CAUTION On natural circulation, RTD by' ass temperatures and p

associated interlocks will be inaccurate.

15.

Verify Natural Circulation:

15.

Raise tate of dumping steam from intact SGs until natural RCS subcooling monitor -

e GREATER THAN 24*F [38'F FOR ADVERSE CNMT].

e SG pressures - STABLE OR LOWERING.

e RCS hot leg temperatures-STABLE OR LOWERING.

e Core exit TCs - STABLE OR LOWERING.

~

RCS cold leg temperatures-e AT SATURATION TEMPERATURE

~

FOR SG PRESSURE.

PAoCEDURE No.

REVISloN PAGE No, VEGP 19101-C 8

12 of 20 ACTIONS / EXPECTED RESPONSE RESPONSE NOT OBTAINED 16.

Check If Source Range Detectors Should Be Energized:

a. Check intermediate
a. WHEN flux less than 10-10 range flux - LESS THAN
amps, THEN do Step 16b and c.

10-10 AMPS.

Continue with Step 17.

b. Verify source range
b. Manually energize source detectors - ENERGIZED.

range detectors.

c. Transfer nuclear recorder to source range scale.

NOTE Without RCPs in service, boric acid will not mix uniformly in the RCS.

17.

Verify Adequate Shutdown Margin:

a. Open sample isolation valves as necessary.
b. Direct Chemistry to sample RCS for boron concentration.
c. Shutdown margin -
c. Borute as necessary to a ADEQUATE.

xenon-free, cord shutdown concentration by initiating 13009, CVCS REACTOR MAKEUP CONTROL SYSTEM.

18.

Maintain Plant Conditions --

STABLE:

j e

RCS pressure.

e PRZR level, i

e RCS temperatures.

e Intact SG levels.

W%

. _ _ _ _ _ _ _ _. _ _ _ ~ - _ _ _ _ _ _ _ _ _. _ _.... _ _.. _. _ _. _. _.. _ _ _ _ _ _. _. _. _ _ _ _ _.

PXoCEDURE No.-

MEVISloN PAGE N(f' VEGP 19101-C 8

13 o f-20 i

ACTIONS /EXPECTEQ RESPONSE RESPOJSE NOT OBTAINED 19.-

Check ECCS Flow Not Required:

1

a. RCS subcooling monitor -
a. Go to_19102-C, ECA-0,2 GREATER THAN 24
  • F [38 'F LOSS OF ALL AC POWER FOR ADVERSE CNMT).

RECOVERY WITH SI REQUIRED.

b. PRZR level - GREATER
b. Control charging flow to THAN 9% [36% FOR maintain PRZR level.

ADVERSE CNMT).

i IF PRZR level can NOT be liIdintained, THEN go to 19102-C, E 0.2 LOSS OF ALL AC' POWER RECOVERY WITH SI REQUIRED.

20.

Try To Restore Offsite 20.

Maintain plant conditions Power To All AC' Busses stable using_AC emergency By Initiating power.

i Appropriate Electrical Procedures.

21.

Start Essentici Chilled Water Pumps By Initiating 13 744, ESSENTIAL CHILLED WATER SYSTEM.

l l

l l

l L

l O

G

PAoCEDURE No.

REVISloN -

PAGE No.

VEGP 19101-C 8

14 of 20 j

ACTIONS / EXPECTED RESPONSE-RESPONSE NOT OBTAINED CAUTION e Two hot starts of an RCP are allowed if the pump coasts to a stop between starts.

(Approximately 2 minute s. )

e Subsequent hot starts are allowed if the pump has been running for 20 minutes or idle for 45 minutes.

e Start only one RCP at a time.

22.

Determine If Natural Circulation Cooldown-Not Required:

a. Start at least one RCP
a. Go to 19002-C,' ES-0.2 using Attachment D.

NATURAL CIRCULATION C00LDOWN.

b. Consult TSC and go to appropriate procedure.-

END OF PROCEDURE TEXT

.1 L

d

FT,oCEDURE No.

AEVISloN PAGE No.

VEGP 19101-C 8

15 of 20 Sheet 1 of 2 ATTACKHENT A ESTABLISHING CHARGING WITHOUT INSTRUMENT' AIR A.

Establish Charging With Train A Emergency Bus Energized:

1. Verify Train A CCP - RUNNING.
2. Verify Train A charging isolation valves - CPEN:

e HV-8116 e

HV-0190A HV-8105 (locally verify if Train B De-energized) e j

3. Shut the following charging isolation valves e

HV-8485A e

HV-8106

4. Maintain desired charging flow using HV-0190A.
5. Open charging to seal injection manual isolation:

UNIT 1 UNIT 2 1-1208-U6-152 2-1208-U6-152

6. Return to Step 5 of this procedure.

NOTE Use the-following section of this attachment to control seal injection after seal cooling is established.

7. Maintain 8 to 13 gpm seal injection flow by throttling:

UNIT 1 UNIT 2 1-1208-U6-152 2-1208-U6-152

8. Maintain desired charging flow using HV-0190A.

e

I DQoCEDURE No.

QEVISloN PAGE No.

VEGP 19101-C 8

16 of 20 Sheet 2 of 2

, ATTACHMENT A (Cont'd.)

B.

Establish Charging With Train B Emergency Bus Energized:

-1

1. Verify Train B CCP - RUNNING.
2. Verify Train B charging isolation valve HV-0190B - OPEN.
3. Verify Train B BIT outlet isolation valve HV-8801B - OPEN.
4. Shut the following charging isolation valvest e

HV-8438 e

HV-8485B

5. Maintain desired charging flow using HV-0190B.
6. Open charging to seal injection manual isolation UNIT 1 UNIT 2 1-1208-U6-151 2-1208-U6-151
7. Return to Step 5 of this procedure.

NOTE Use the following section of this attachment to control seal injection after seal cooling is established.

8. Maintain 8 to 13 gpm seal injection flow by throttling:

UNIT 1 UNIT 2 1-1208-U6-151 2-1208-U6-151

9. Maintain desired charging flow using HV-0190B.

j_

END OF ATTACHMENT A l

.i e

g 9

w v

e -

--c r

-,,.,-.,.ww,,

7-,--.., -

w.e-~w

--y..-

..-.,-.-. y,

PQoCEDUQE No QEvistoN PAGE No.

VEGP 19101-C 8'

17 of 20 Sheet 1 of 1 ATTACFMENT B RECOVERY OF RCP SEAL-INJECTION 1.

Check RCP No. I seal temperature.

IF less than 220*F, THEN open CVCS SEALS RCP SEAL INJ SUPPLY CNMT ISO valve and ICUU supply to_ the affected RCP.

Return to Step 10 of this procedure.

4 IF greater than 220*F.

TREN proceed to Step 2 of this Attachment.

2.

Verify seal injection supply temperature - LESS THAN 135'F.

Verify ACCW supply temperature

  • LE1S TKdN 105'F.

3.

Dispatch operator to shut CVCb SLALS RCP SEAL. INJ NEEDLE VLVS TO #1 SEAL for affected RCP, 1208-U4-414(RCP 1) e 1208-U4-415(RCP 2) e e

1208-U4-416(RCP 3) e 1208-U4-417(RCP 4) 4 Verify CVCS SEALS 7Ci SuAl INJ NEEDLE VLVS of Step 3 of this Attachent is shut.

5.

Open CVCS SEALS RCP SEAL-INJ SUPPLY CNMT ISO valve for affected RCP.

6.

Slowly open CVCS SEALS RCP SEAL INJ NEEDLE VLVS TO fl SEAL.to establish a 1*F per minute cooldown rate.,

7.

WHEN RCP No. I seal temperature is less than.220'F, TREN restore ACCW supply-to the affected RCP.

8.

IF normal charging has been established.

l TREN Control. charging and 3eal injection using FV-0121 and R77U182 or Attachment A as appropriate.

9.

Verify RCP~ seal parameters:

l l

e Seal injection supply temperature - LESS THAN 135'F.

-RCP No. 1 seal temperature --LESS THAN 220*F.

e ACCW supply temperature - LESS THAN 105'F.

e IF RCP seal parameters can NOT be verified, TREN secure the affected RCFT-10.-

Return to Step 11 of this. procedure.

END OF ATTACHMENT __B

43 ppOCEDUQE NO.

QEVISION PAGE NO.

VEGP.

19101-C 8

18 of 20-Sheet l'of 1 ATTACHMENT C ESTABLISH SAFETY GRADE LETDOWN CAlfrION The PRT may rupture while performing safety grade letdown.

1.

Open Reactor Vessel Head Vent isolation valves:

e HV-8095A e

HV-8096A e

HV-8095B e

HV-8096B 2.

-Open Reactor Vessel Head Vent flow control valves to obtain desired letdown flows e

HV-0442A e

HV-0442B END OF ATTACHMENT C l

l h

e 4

i

\\

P40CEDUAE No.

REVISloN kAGE No.

VEGP 19101-C 8

19 of 20 Sheet 1 of 2 ATTACEMENT D STARTING A REACTOR COOLANT PUMP 1.

Establish Initial Conditions.

a. 13.8KV power available to RCP.
b. Steam bubble in PRZR.
  1. 1 Seal dP greater than or equal to 200 psid.

c.

d. Seal inj ection flow 8 to 13 gpm.
e. Seal leakoff flow greater than or equal to 0.2 gpm.

2.

Check the following alarms clear or establish conditions to clear those alarms for the RCP to be started:

a. RCP LOWER OIL RSVR HI/LO LEVEL.
b. RCP UPPER RSVR HI/LO LEVEL.
c. VOLUME CONTROL TANK OUTLET TEMP HI.
d. VCT HI/LO PRESS, e.

RCP STNDPIPE LO LEVEL.

f. RCP STNDPIPE HI LEVEL.
g. RCP MTR OVERLOAD.
h. RCP NO 2 SEAL LKOFF HI FLOW.

l

1. ACCW RCP CLR OUTLET HI TEMP.

J. ACCW RCP CLR LO FLOW.

l

k. ACCW RCP THERM BARRIER HX HI FLOW.
1. ACCW RCP THERM BARRIER HI PRESS.

3.

Verify all RCP ACCW thermal barrier isolation valves open.

4.

Start the associated RCP oil lift pump.

5.

After two minutes of lift pump operation, start the RCP, e

PROCEDURE No-RElflStoN PAGE No.

VEGP 19101-C 8

20 of 20 Sheet 2 of 2

,, ATTACHMENT D (Cont'd.)

After-Mroximatelyonemi.nutecheckthefollowingalarmsclear:

6.

a.

RCP LOW FLOW.

b. RCP SHAFT VIBRATION.
c. RCP FRAME VIBRATION.
d. Those alarms in Step 2.

7.

After one minute of RCP operation, stop the oil lift pump.

END OF ATTACHMENT D l

l l

l l

l l

e w.%.

.

Retrieved from "https://kanterella.com/w/index.php?title=ML20092F910&oldid=4332730"