ML20204J642

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Rev 3 to Emergency Operating Procedure ES-1.1, Safety Injection Termination
ML20204J642
Person / Time
Site: Millstone, Haddam Neck, 05000000
Issue date: 06/03/1988
From:
CONNECTICUT YANKEE ATOMIC POWER CO.
To:
Shared Package
ML20204H467 List: ... further results
References
ES-1.1, NUDOCS 8810250205
Download: ML20204J642 (12)
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Text

4 JUN 0 31988

. NUMBER TTI1E REY. ISSLT./DATE  :

E S . I .1 SI TERMINATION Rev. 3 l

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A. PURPOSE f This procedure provides the necessary instructions to terminate safety injection and stabilize plant conditens.

B. SYMPTOMS OR ENTRY CONDITIONS i

This procedure is entered from:  ;

1. E 0, REACTOR TRIP OR S AFETY INJECTION, Step 25, f E 1, LOSS OF REACTOR OR SECONDARY COOLANT, Step 7 when specified termination criteria are satisfied.
2. FR H.1, RESPONSE TO LOSS OF SECONDARY HEAT SINK, Step 26 after secondary heat sink has been reestablished and SI is terminated.

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001025o205 001007 Page 1 of 12 PDR ADOCK 05000213 P PDR

JUN O 31989

. NLStBER Tm.E REV. ISSUE /DATE j ES 1.1 SI TER511 NATION Rev. 3 i STEP ACTION / EXPECTED RESPONSE RESTONSE NOT OBTAINED

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r 7 CAUTION: o IF OFF SITE POWER IS LOST AFTER RESETTING SI, ofANUAL ACTION AfAY BE REQUIRED TO RESTART '

SAFEGUARDS EQUIPESfENT.

o IF CONTROL SWITCH FOR ANY SHUTDOWN CHARGING PUhfP WAS TAKEN TO THE TRIP POSITION, THE PUhfP(S) i AfAY AUTO START WHEN BOTH SI WL RELAYS ARE RESET. I L J l l

NOTE: FOIDOUT PAGE SHOULD BE OPEN 1 RESET St Aht CONTAINhiEhT ISOLAT10N:

a. Check containment pressure - a. Perform the folicwing:

LESS THAN 5 PSIG

1. Open CKTs A13 and B13 in DC panels A and B.
2. Reset SI WL Relays. ,
3. IE charging pump control  !

switch (es) are NQIin TPO, '

TIIEN restore low discharge  !

pressure auto start for shutdown charging pump (s) by taking pump control switch (es) to the "Trip" position then releasing switch (es) to i the "Auto" position. I

4. G.Q IQ Step 2.  !
b. Reset Si and containment isolation (SEE OPPOSITE PAGE) l 2 CilECK CONTAINMENT START ONECONTAINMENT r INSTRUMENT AIR PRESSURE INTRUMENT AIR COMPRESSOR .

GREATER THAN 118 PSIG TO ESTABLISH INSTRUMENT AIR  ;

PRESSURE.  !

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JUN 0 31988 NUMBER TIT 1.E REV.15 SUE /DATE  !

SI TERMINATION I ES 1.1 Rev.3 i

STEP ACTION / EXPECTED RESPONSE RESPONSE NOT OBTAINED 3 VERIFY ONE CHARGING P'JMP E RCP LOWER BEARING RUNNING AND PLACETHE TEMPERATURES ARE LESS WAN OmER PUMP IN STANDBY 170' F, WEN PERFORM THE FOLLOWING:

a. Check closed CH MOV 257.

E NQIclosed,  !

WEN manually QR locally l close CH MOV 257. '

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b. Check open BA MOV 373.

E EQI open, I WEN manually open BA MOV-373 QR BA MOV-32.

c. Take charging pump control switch  !

to the "Trip" then to the "Start" position.

E RCP LOWER BEARING TEMPERATURES ARE GREAHR THAN 170* F.

THEN PERFORM THE FOLLOWING:

a. Isolate sealinjection  !
b. Check closed CH MOV 257. i E NQIclosed, j WEN manually QR locally close l CH MOV 257. i
c. Check open BA MOV 373.

E HQI open, WEN manually open BA MOV 373 QR BA MOV 32.  ;

d. Take charging pump control switch to the "Trip" then 'o the "Start" position.

4 CllECK RCS PRESSURE STABLE DO NOT STOP St PUMPS.

OR INCREASING GQIQ E 1, l.OSS OF REACTOR OR SECONDARY COOLANT, STEP 1.

5 CONTROL CHARGING FLOW TO E PRZR LEVEL CONTINUES TO f MAINTAIN PRZR LEVEL DECREASE, THEN QQIQ ES 1,2, POST LOCA COOLDOWN AhD DEPRESSURIZATION, SEP 1.

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JUN 0 31988 I

, NUMBER TTR.E REV. ISSUE /DATE  ;

ES 1.1 SI TERMINATION Rev.3 i i

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STEP ACTION / EXPECTED RESPONSE RESPONSE NOT OBTAINED 6 CHECK IF HPSI PUMPS SHOULD l BE STOPPED:

a. Check RCS pressure - a. E any SG is faulted.  !

THEN DO EQIproceed until faulted o STABLE DE INCRFASING SG depressurization stops.

o GREATER THAN 1.75 PSIG E no SG is faulted (1700 PSIG FOR ADN ERSE THEN QQIQ ES 1.2 CONTAINMENIi POST LOCA COOLDOWN AND DEPRESSURIZATION, Step 1.

E criteria for stopping HPSI pumps can EQIbe satisfied after faulted SG depressurization stops, THEN QQIQ ES 1.2.

POST LOCA COOLDOWN AND DEPRESSURIZATION, Step 1.

b. Stop HP6; pu ng.s and p: ce in standby I
c. Close all four loop S.t MOW  ;

7 STOP LPSI PUMPS AND Pi ACE IN STANDBY:

a. Close both core dJuge MOVs 8 VERIFY SI FLOW NGY REQUIRED: l
a. Check RCS sabcooling based on a. Manually operate SI pumps as l core exit thermocriupies - necessary, GREATER THAN 32' F GQIQE1, (SEE OPPOSiTc PAGE LOSS OF REACTOR OR FOR ADVERSE CONTAINMENI) SECONDARY COOLAST, Step 1.
b. Check PRZR Icw :- b. Control charging flow to maintain GREATER THAN l' 1 PRZR level (24 % FOR ADVE"dd E PRZR level can EE be mainte.ined.

CONTAINMEhT) manually operate Si pumps as necessary.

THEN 00IQ E 1.

LOSS OF REACTOR OR SECONDARY COOLANT, Step 1.

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JUN O 31988 NUMBER TTIU REY. ISSUE /DATE  :

ES 1.1 SI TERMINATION Rev.3 l l

l STEP ACTION / EXPECTED RESPONSE RESPONSENOTOBTAI ED 9 INCREASE PRZR LEVEL TO CONTROLCHARGING AS  !

GREATER TRAN 15 % NECESSARY l (35 % FOR ADVERSE l CONTAINMENT) I I

10 ESTABLISH LETDOWN IE CONTAINMENT PRESSURE IS (SEE OPPOSITE PAGE) LESS THAN 5 PSIG, I

THEN ESTABLISH ALTERNATE LETDOWN BY PERFORMING THE '

I FOLLOWING:

l i 1. Reset Containment HCP WL Relays.

2. Open DH TV 1841, drain header trip valve.
3. Reset solenoid in blowdown room for drain header trip valve, DH TV 1847.
4. Line up drain header to VCT:
a. Close DH V 408, drain header to PDT.
b. Open CH V 383, drain header to VCT.
5. Close breaker for DH MOV 310. '
6. Open one loop drain MOV.
7. Throttle DH MOV 310 to maintain  !

PR2R level.

8. Close CH MOV-292B and CH.MOV 292C.

I i1 CHECK VCT MAKEUP CONTROL .'

SYSTDt:

a. Check VCT makeup blender ratio - a. Adjust makeup blender ratio to greater SET FOR GREATER THAN RCS than RCS boron concentration. l BORON CONCENTRATION i i
b. Check VCT makeup controls - b. Place makeup controls in automatic.

IN AUTOMATIC l

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JUN 0 31985 NUMBER TTG REV. ISSUE /DATE >

ES 1.1 SI TERMINATION Rev.3 '

i STEP ACTION / EXPECTED RESPONSE RESPONSE NOT OBTAINED i

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12 ALIGN CHARGING PUMP SUCTION TO VCT:

a. Open CH MOV-257 ,

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b. Close BA MOV-373 i
c. Check BA MOV 32-CLOSED c. Close BA MOV 32 13 CHECK IF RCP SEAL WATER STOP AFFECTED RCP(s).

RETURN FLOW (s)IS GREATER THAN 0.2 GPM 14 INSURE HIGH PRESSURE STEAM IE CONDENSER b'QI AVAILABLE, DUMP OPERA ~ES TO MAINTAIN IHEE DUMP STEAM USING ONE TAVG QR MORE OF'IEE FOLLOWING: ,

s. Atmes sheric vent valve.
b. Terry 7urbine steam sup )ly valves. l
c. Hog Jet steam supply va..ves. j i ,

15 CHECK RCS COLD LEG CONTROL STEAM DUMP ASD TOTAL l l TEMPERATURES STABIE AUX FEEDWA'ER FLOW AS NECESSARY TO STABILIZE RCS TEMPERATURES.

16 CONTROL PRZR PRESSURE:

a. Turn on PRZR heaters a. IE normal spray EQIavailable AND operate normal spray as AEQ letdown is in service necessary to maintain PRZR THEN use auxiliary spray, pressure stable f IE auxiliary spray b'QIavallable. l IljEE use one PRZR PORV.

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tJN 0 31W8 NUMBER TTIM REV. SSUE/DATE l E S . I .1 SI TERhi! NATION Rev.3 j l

STEP ACTION / EXPECTED RESPONSE RESPONSE SOT OBTAINED i

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l CAUTlONt of0NITOR DWST LEVEL. START ofAKEUP TO DWST BEFORE LEVEL DECREASES TO $4,000 GALLONS. l L J l l

l 17 CHECK INTACT SG LEVELS:

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a. Check wide range levels - a. hiaintain total AUX feedwater flow greater than 320 GPhi until wide  !

GREATER THAN 63 %

(67 % FOR ADVERSE range levelin at least one SG is l CONTAINhtENT) greater than 63 f l' (67 % for adverse. sontainment).

b. Control AUX feedwater flow to b. IE any So wide range level continues maintain wide ran ge levels to increase, l between 63 % anc. 69 % THEN stop AUX feedwater flow (67 % and 69 % for adverse to that SG.

containment) 18 CHECK RCP COOLING SYSTEhtS: ESTABLISH NORhtAL COOLING ,

FLOW TO RCPs,  !

o RCP CCN System flow - NORhiAL IN ACCORDANCE WIT 11, I o RCP sealinjection flow NORhiAL l NOP 2.81, 1 OPERATION OF COhiPONEhT l COOLING SYSTEht, [

ASR t NOP 2.61, SEAL WATER STARTUP NOR\tAL OPERATION. i

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JUN 0 31986 NUMBER TTTLE '

REY. ISSUE /DATE ES I.1 SI TERMINATION Rev.3

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STEP ACTION /EXPECIED RESPONSE RESPONSE NOT OBTAINED 19 VERIFY ALL AC BUSES ENERGIZED VERIFY EMERGENCY BUSES BY OFFSITE POWER ENERGlZED BY DIESEL GENERATORS THEN PERFORM THE FOLLOWTNG: I o Verify MCC 5 energized.

E NQIenergized.

THEN energize MCC 5 E MCC 5 can NOIbe energized, l THEN QQIQ EOP 3.1-50 f LOSS OF MCC 5, Step 1.

o Start CARFANS as equired.

o Stop allruuologicalt ' chemical releases, o isolate steam to the Air Ejectors.

o Check RCP cooling status:

1. Elower bearing temperature is less than 170 F. .

THEN perfo.m the following:

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a. Start one CCW pump,
b. Start one charging pump,
c. Initiate RCP seal water flow.
2. Elower bearing temyerature is greater than 170' F.

TriEN perform the following:

a. Close RC? thermal barrier manual retum isolation valve (CC V 841),
b. Close RCP seal supply valves (CH V-b5A through D).
c. Start one CCW pump.
d. Start one charging pump.
c. Slowly open RCP thermal barrier manual return valve,
f. WHEN lower bearing temperature is le .s than 170' F.

THEN slowly initiate RCP seal water flow.

o Try to restore offsite power (SEE OPPOSITE PAGE).

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JUN 0 31988 NUMBER TTTIE REY. ISStEDATE '

E S . I .1 SI TERMINATION Rev. 3 i STEP ACTION / EXPECTED RESPONSE RESPONSE NOT OBTAINED r 7 j CAUTIONt IF RCP SEAL COOUNG FLOW HAD PREYlOUSLY BEEN LOST, THE '

AFFECTED RCP(s) SHOULD NOT BE STARTED PRIOR TO AN  !

ENGINEERING STATUS EVALUATION.  ;

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NOTEt RCPs SHOULD BE RUN IN ORDER OF PRIORilY TO PROVIDE l NORbfAL PRZR SPRAY.

20 CHECK RCP STATUS:

a. Check RCPs - a. Tr> to start one RCP: l AT LEAST ONE RUNNING
1. Establish conditions for starting an RC
a. Close loop Tc isolation valve.
b. Open loop bypass valve, i
c. Start oil hft pump.
d. Insure seal water and component cooling water supplied to RCP.
e. Insure lower bearing temperature i is less than 170' F.
f. Check RCS pressure l' g eater than 300 PSIG.
g. Open CH TV 240, CH TV 241 and CH TV-334 t (seal water return trip valves) j
h. Open CC TV 1411 (otl cooler CCW return trip valve)  !
i. Open seal water return MOV.
2. Start selected RCP,  ;

THEN perform the following: i

a. Oyn loop Te isolation valve.
b. C..ose loop bypass valve.

l IE RCP can b'QI be started, THEN perform the following: i I

a. Open loop Tc isolation valve.
b. Close loop bypass valve,
c. Verify natumi circulation '

(SEE ATTACHMENT A).

IE natural circulation b'QI verified, THEN increase dumping steam  ;

from intact SG(s). ,

l d. Attempt to start another RCP.  ;

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JUN 0 31988

. NUMBER EU REV. ISSUE /DATE  !

E S. I.1 SI TERMINATION Rev.3 i i

STEP ACTION / EXPECTED RESPONSE RESPONSE NOT OBTANED 21 CHECK SOURCE RANGE DETECTORS ENERGIZED: ,

a. Check intermediate range flux - a. Continue with step 22, i LESS THAN 5 x 1010 AMPS WHEN less than 5 x 1010 AMPS, IliEN do steps 21 b, c and d.
b. Verify source range detectors - b. Manually energize source range  !

ENERGlZED detectors.

c. Transfer nuclear flux recorders .

to source range scale

d. Transfer SUR meters to source range 22 CHECK IF DIESEL GENERATORS  !

SHOULD BE STOPPED-

a. Verify ac emergency buses energized - a. Try to restore off site power to l BOTH TRAINS BY OFF StrE both trains.

I POWER (SEE OPPOSITE PAGE) i i

BUSES 8,4 and 5 E b'QI restored, WEN check the following equipement l ASI2 BUSES 9,6 and 7 loaded on ce ac emergency buses:

1. MCC - 5. i
2. Control air compressors.
3. Semi vital 120 V buses.

l 4. Closed cooling system pumps.

5. Battery charger I A. i l 6. One component cooling water i pump.

I 7. One service water pump for each l diesel generator.

l 8. E service water is supplied to l RHR heat exchangers, THEN use at least two service water pumps.

9. Start CARFANS as required to 1 limit containment pressure and l temperature.
b. Stop any unloaded diesel generator and place it in standby i

(SEE OPPOSITE PAGE) l Page 10 of 12 i -

JUN 0 3198e NUMBER TTI1E REV. ISSUE /DATE ES 1,1 SI TERMINATION Rev.3 1

STEP ACTION / EXPECTED RESPONSE RESPONSE NOT OBTMNED 23 SHUT DOWN UNNECESSARY PLAST EQUIPMENT l

a. Stop one main feedwater pump 1
b. Stop one condensate pump
c. Place standby heater drain pump .

In TPO ,

d. Place running heater drain pump a TeO 24 MAINTAIN STABLE PLANT CONDITIONS:

o PRZR pressure o PRZRlevel o SG wide range levels o RCS average temperature l

25 VERIFY St FLOW NOT REQUIRED:

a. Check RCS subcooling based on a. Manually operate SI pumps as l core exit thermocouples - necessary, GREATER ' IRAN 32' F Q.Q IQ E 1, '

(SEE OPPOSlu PAGE LOSS OF REACTOR OR FOR ADVERSE CONTAINMEN'O SECONDARY COOLANT, Step 1. l 1

b. Check PRZR level- b. Control charging flow to maintain GREATER ' IRAN 10 % PRZR level.

(24 % FOR ADVERSE IE PRZR level can SQIbe maintained, CONTAINMENT) manually operate Si pumps as necessary, TliEN GQIQ E 1, LOSS OF REACTOR OR SECONDARY COOLAST, Step 1.

26 GQIQ APPROPRIAE PLANT PROCEDURE EhD  ;

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JUN 0 31986 i TTT12 '

NUMBER REY. ISSU1RDA'!1! 1 E S. I .1 SI TERMINATION Rev.3 i !

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ATTACHME?G A l The following conditions suppon or indicate natural circulation flow:

o RCS subcooling based on core exit thermocouples is greater than 32' F.

l o SO possures are stable or decreasing.

o RCS temperature based on core exit thennocouples and average temperature indications is stable or decreasing.

l o RCS cold leg temperatures are at saturation temperature for SG pressures.

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