ML20128L204

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Monthly Operating Repts for Jan 1993 for Limerick Units 1 & 2
ML20128L204
Person / Time
Site: Limerick  Constellation icon.png
Issue date: 01/31/1993
From: Meck K
PECO ENERGY CO., (FORMERLY PHILADELPHIA ELECTRIC
To:
Shared Package
ML20128L193 List:
References
NUDOCS 9302190117
Download: ML20128L204 (10)
v • d • e


Text

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3931012540 Docket No. #50-352 i

Attachment to Monthly j

Operating Report for j

January 1993 I

LIMERICK GENERATING STATION l

UNIT 1 1

JANUARY 1 THROUGH JANUARY 31, 1993 J

I.

NARRATIVE

SUMMARY

OF OPERATING EXPERI,ENCES i

l Limerick Unit 1 began the month of January at a nominal 100%

of rated thermal power. - On Friday, January 1, reactor power 4

was reduced to 90% due to excess generating capacity, power -

4 j

was restored the same day.

On Friday, January 8,

reactor power was reduced to 95% for main turbine control valve i

exercise surveillance testing, reactor power was restored to j

100% the same day.

Unit 1 ended this operating period at a-nominal 100% of rated thermal power.

i Unit 1 occurrences during the operating period included:

On Saturday, January 9, at 0905 hours0.0105 days <br />0.251 hours <br />0.0015 weeks <br />3.443525e-4 months <br />, "1A" reactor protection

}

system- (RPS) uninterruptable power supply was lost during l

restoration from 18-month RPS electrical breaker shunt trip operability surveillance testing (ST-8-036-320-1) and 6-month i

RPS overvoltage/undervoltage/underfrequency electrical power monitoring surveillance testing (ST-2-036-621-1). The loss of j

power resulted in various engineered safety feature (ESP) l actuations.

The RPS power monitoring system undervoltage relay was reset and RPS power subsequently was restored.

By 0940

hours, all primary containment isolation system-

[

isolations were reset.

The event'was reported to the NRC pursuant to 10CFR50.72 (b) (2) (ii).

I i

l II.

CHALLENGES TO MAIN STEAM SAFETY RELIEF VALVES i

l~

There were no challenges to the Main Steam Safety Relief-Valves during the month, I

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. AVERAGE DAILY UNIT DOWER LEVEL l

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DOCMET NO. 50 352

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4 UNIT LINERICM UNIT t DATE FEBRUARY 10 1993 I

t COMPANY PHILADELPHIA ELECTRIC COwpANY E

i KARL WECM f

REPORTS SUPERVISOR I

BUSINESS UNIT I

LIWERICK GENERATING STATION f

I TELEP**ONE (215) 327-1200 ExTE.NSION 3320 I

{

MONTH JANUARY 1993

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DAV AVERAGE DAILY POWER LEVEL DAY AVERAGE DAILY POWER LEVEL (WWE-hET)

(wwE-NET) 1 1039 17 1057 1-

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2 1057 1e 1061

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1053 19 1058 I

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1030' 20 1051 t

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1035 21 1054 l

6-1045 22 1040 7

1041 23 1066 l'

8 1054 24 1036 9

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9 1050 25 1053 10 1058-26 1059 f

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11 1053 27 1087 4

l 12 1059 29 1018

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OPERATING DATA REPORT DOC *ET NO. 50 - 352

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DATE FEBRUARY 10. 1993 3931012540 ELECTRICCOMDAN; COMPLETED BV IA MARL wECA REPORTS SUPERVISOR BUSINES$ UNIT LINERICM GENERATING STATION TELEPHONE (215) 327-1200 EXTENSION 3320 OPERATIt.G STATUS 1 UNIT NAME: LIMERICK UNIT 1 l NOTES: THERE WERE NO LOAD DROPS l

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2. REPORTING PERIOD:

JANUARV. 1993 GREATER THAN 20s.

3.

LICENSED THERWAL POWER (wwT):

3293 4 NAMEPLATE RATING (GROSS M*E):

1138 l

S. DESIGN ELECTRICAL RATING (NET wwE):

1055 l

l l

6. MAXIMUM DEPENDABLE CAPACITY (GROSS wwE): 1092 l

l g

7. MAXIMUM DEPENDABLE CAPACITY (NET wwE):

1055 l

l 8.

IF CHANGES OCCUR IN CAPACITV RATINGS (ITEMS NUMBER 3 THROUGH 7) SINCE LAST REPORT. GIVE REASONS:

9. POWER LEVEL 70 wHICH RESTRICTED. IF AN" (NET wwE):
10. REASONS'FOR RESTRICTIONS. 18 ANY:

THIS WONTH VR-TO-DATE CUwJLATIVE

11. POURS IN REPORTING PERIOD 744 744 61.368
12. NUMBER OF HOURS REACTOD WAS CRITICAL 744.0 744.0 48.293.2
13. REACTOR RESERVE SHUTDOWN HOURS 0.0 0.0 0.0 14 HOURS GENERATOR ON-LINE' 744.0 744.0 47.302.2 15.-UNIT RESERVE SHUTDOWN HOURS 0.0 0.0 C.D
16. GROSS THERwAL ENERGV GENERATED (WWH) 2,446,877 2;446,$77 144,78Q,342
17. GROSS ELECTRICAL ENERGV GENERATED (wwH) 810.890 8t0.890 46.786.030 18.-NET ELECTRICAL.. ENERGY GENERATED (wwH) 782.265 782.265 44.822.782 PAGE 1 OF 2

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UNIT SHUTDOWNS ann POWER REDUCTIONS DOCGET NO. 50 - 352

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UNIT NAWE LINERICM UNIT 1 6

DATE FEBRUARY 10. 1993 i

REPORT MONTH JANUARV. 1993 COMPLETED BV PHILADELPHIA ELECTRIC CONDANY f

MARL MECM

~

3931012540 REPORTS Su,ERv1So" BUSINESS UNIT LINERICM GENERATING STATION TELEPHONE (215) 327-1200 EXTENSION 3320 p

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J l'

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. METHOD OF l LICENSEE lSYSTEWlCOMPONENTj CAUSE AND CORRECTIVE

{

l ITYPElOURATIONlREASON $ HUTTING DOWNI EVENT l CODE 1 CODE I ACTION TO NO.!

DATE i (1)I (HOURS)l (2)

RE4~OR (3) l REPORT

  • l (4) l (5) l PREVENT RECURRENCE l

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930101 S

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l N/A ZZ l ZZZZZZ l ?_OAD WAS REDUCED 10% DUE TO EXCESS l

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l l GENERATING CAPACITY 1

1 1

I I

1 i

I 2

930108 5

000.0 i

B l 4

N/A l HB

{ %ALVEX l REACTOR POWER WAS REDUCED 5% TO PERFORM i

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l l WAIN TURSINE CONTROL VALVE EMERCISE l

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ll SURVEILLANCE TESTINw l

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(4) l F - FORCL' REASON METHOD SMHIBIT G - INSTRUCTIONS S - SCHEDULED A - EQUIPMENT FAILURE (EXPLAIN) 1 - MANUAL FOR PRECADATION OF DATA B - WAINTENANCE OR TEST 2 - WANUAL SCRAM.

ENTRY SHEETS FOR LICENSEE C - REFUELING 3 - AUTOWATIC SCRAW.

EVENT REPORT (LER) i D - REGULATORV RESTRICTION 4 - OTHER (EXPLAIN)

FILE (NUREG-0161) f E - OPERATOR TRAINING + LICENSE EXAw1 NATION f

F - ADMINISTRATIVE (5)

G - OPERATIONAL ERROR (EXPLAIN)

H - OTHER(EXPLAIN)

EXHIBIT I - SAME SOURCE f

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3931012540 4

Docket No. #50-353 Attachment to Monthly Operating Report for i

January 1993 j

LIMERICK GENERATING STATION l

UNIT 2 JANUARY l THROUGH JANUARY 31, 1993 I.

NARRATIVE

SUMMARY

OF OPERATING EXPERIENCES Limerick Unit 2 beoan the month of January in end-of-cycle coastdown at a nominal 69% of rated thermal power with core flow maximized.

On

Sunday, January 3,

the reactor j

automatically scrammed on reactor high pressure due to a main i

turbine electro hydraulic control (EHC) malfunction.

Unit 2 remained in JPCON 3

until Wednesday, January 6,

when criticality was achieved at 2307 hours0.0267 days <br />0.641 hours <br />0.00381 weeks <br />8.778135e-4 months <br />.

On Thursday, January 7,

Unit 2 peak end-of-cycle reactor power was attained at a nominal 69% rated.

On Thursday, January 21, Unit 2 was manually scrammed from 20% power to commence the second refueling outage.

On Wednesday, January 27, Unit 2 entered CPCON 5 to support ongeing second refueling outage activities.

Unit 2 ended this operating period in OPCON 5.

Unit 2 occurrences during the operating period included:

4 On Sunday, January 3, at 1612 hourr, the reactor automatically scrammed due to high reactor pressure.

The high reactor i

pressure was caused by main turbine control valve closure due to an undetermined EHC malfunction.

Trin nrocedure T-101 was entered and executed.

Reactor water level reached

-37.9".

Prcper primary containment iuolation system isolations and reactor core isolation cooling (RCIC) initiation were appropriateli, received.

Reactor level was immediately i

restored.

i_ip procedure T-99 was entered and executed.

Normal shutdo',en per general procedure GP-3 was commenced.

II.

LyALLEKGES.!O MAIN STEAM SAFETY RELIEF VALVES There were no challenges to the 1%in Steam Safety Relief Valves during the month.

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. AVERAGE DAILY. UNIT POER LEVEL DOCKET NO. 50 - 353

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' ' " " M"'"!c"....'"I'2 393101E340 DATE FEBRUARY 10, 1993 COMPANY PHILADELPHIA ELECTRIC COMPANY KARL MECK REPORTS SUPERVISOR BUSINESS UNIT LIMERICK GENERATING STATION TELEPHONE (215) 327-1200 EXTENSION 3320 MONTH JANUARY 1993-DAY tVERAGE DAILY POWER LEVEL'-

DAY AVERAGE DAILY POWER LEVEL (MWE-NET)

(WWE-NET) 1 701 17 655 2

703 la 647

(

3 469 19

' 644 i'

r 4

0

'20 636 5

0'

.21 69 6

0 22 0

'7 0

23 0

0 395 24' O

i 9

699.

25.

0' 10 690-26 0

y 11 680 27 0

12-679 28 0

13 674 29 0

14 661 30.

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15 667 31 0

16 663 1

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OPERATING DSTA REPORT DOCKET NO. 50 - 353

+

.___..__.______~_ _______-_

1 DATE FEBRUARY 10, 1993 COMPLETED BV PHILADELPHIA ELECTRIC COMPANY REPORTS SUPERVISOR BUSINESS UNIT LIMERICK GENERATING STATION F

TELEPHONE (215) 327-1200 EXTENSION 3320 OPERATING STATUS 1 UNIT NAME: LIMERICK

- UNI T 2.

NOTES: REACTOR AUTO SCRAMMED ON l

l

2. REPORTING PERIOD:

JANUARY. 1993 ON HIGH REACTOR PRESSURE I

l 3.

LICENSED' THERMAL POWER (MWT):

3293 1

DuE TO AN UNDETERMINED MAIN 4

NAMEPLATE RATING (GROSS MwE):

1138

.TUR81NE EHC MALFUNCTION 5.

DESIGN ELECTRICAL RATING (NET MWE):

1055 REACTOR WAS MANUALLY SCRAMMED i

6. MAXIMUM DEPf %DABLE C APACITV (GROSS WWE): 1092 FROM 20% POWER TO BEGIN THE 7.

MAXIMUM DEPENDABLE CAPACITV (NET kwE):

'1055 SECOND REFUELING OUTAGE.

I 8.

!F. CHANGES OCCUR IN CAPACITV RATINGS (ITEMS NUMBER 3 THROUGH 7) SINCE LAST REPORT. GIVE REASONS:

)

9.

POWER LEVEL TO'WHICH RESTRICTED. IF-ANY (NET'WWE):

1

10. REASONS FOR RESTRICTIONS. IF ANY:

1 THIS MONTH VR.TO-DATE CUMULATIVE 11 HOURS IN REPORTING PERIOD 744 744 26.880" 12.' NUMBER OF HOURS REACTOR WAS CRITICAL 400.1 400.1' 23.640.9

[

13. REACTOR RESERVE SHUTDOWN HOURS 0.0 0.0 0.0

'14 HOURS GENERATOR ON-LINE 382.0 382.0 23.C38.5 l

15.' UNIT RESERVE SHUTDOWN HOURS 0.0 0.0 J.O 1

16. GROSS THERMAL ENERGY GENERATED (WWH) 816.994 816.994 72.783.144
17. GROSS ELECTRICAL ENERGV GENERATED (MwH) 260.100 260,100 24.013.206 18.-NET ELECTRICAL ENERGY GENERATED (KwH)

-____'___..__246.765 246.765

.23.109.812 1

L PAGE 1 OF 2 x

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OPERATIMG DATA REPORT (CONTINUED)

DOCMET NO. 50 - 353 4

- 1

[

DATE FEBRUARY 10, 1993

{} }, [4 () THIS MONTH YR-TO-DATE CUMULATIVE 7

19. UNIT SERVICE FACTOR 51.3 51.3 85.7
20. UAIT AVAILABILITY FACTOR 51.3 51.3 85.7 21 UNIT CAPACITY FACTOR (USING MDC NET) 31.4 31.4 81.5 e
22. - UNIT CAPACITY FACTOR (USING DER NET) 31.4 31.4 81.5
23. UNIT FORCED OUTAGE RATE 25.0 25.0.

5.1 24 SHUTDOWN 5 SCHEDULED OVER NEXT 6 MONTHS (TYPE. DATE. AND DURATION OF EACH): SECOND REFUELING: 01/22/93: 68 DAYS-

25. IF SHUTDOWN AT END OF REPORT PERIOD. ESTIMATED DATE OF STARTUP: 03/31/93
26. UNITS IN TEST STATUS (PRIOR TO COMMERCIAL OPERATICN):

FORECAST -ACHIEVED ( INITIAL CRITICALITY 08/12/89 08/12/89 INITIAL ELECTRICITY 09/01/89 09/01/89 COMMERCIAL OPERATION 02/01/90 01/08/90 h + ' I s PAGE 2 OF 2 i L i .m..

._.m m .m I UNIT SHUTDOWNS AND POWER REDUCTIONS DOCKET 40. 50 - 353 1 UNIT NAME LIMERICK UNIT 2 DATE FEBRUARY 13. 1993 REPORT MONTH JANUARV. 1993 COMPLETED BV PHILADELPHIA ELECTRIC COMPANV MAPL MECM ~ [ 7 Q d' jQ1}J pi REPORTS SUPERVISOR I v3 v BUSINESS UNIT LIMERICK GENERATING STATION TELEPHONE (215) 327-1200 EXTENSION 3320 __.__.._.____....._....___~_ [ l l METHOD OF LICENSEE ISYSTEM'COMPONENil CAUSE AND CORRECTIVE TVPEIDURATIONIREASON SHUTTING DOWN EVEN- l CODE ' CODE l ACTION TO ' NO.' DATE (1}} (HOURS)l (2) REACTOR (3) REPORT

  • l (4)

(5) 1 PREVENT RECURRENCE I i 1 1 1. 930103 i F 1C3.3 l A i 3 l 2-93-001 CC INSTRU REACTOR AUTOMATICALLY SCRAMMED ON l HIGH REACTOR PRESSURE CAUSED BY EAIN i TURBIhE CONTROL VALVE CLOSURE DUE TO Ah l l UNDETERMINED EHC MALFUNCTION. v 2 930121 F 024.0 H 2 N/A ZZ ZZZZZZ REACTOR WAS MANUALLY SCAAMMED FPOM 20% 'i POWER ONE DAV PRIOR TC THE SECOND I REFUEL OUTAGE TO BEGIN DECON ACTIVITIES I i i 3 l 930122 S 234.7 C 4 N/A ZZ j ZZZZZZ UNIT 2 SECOND REFUELING OUTAGE BEGINS l i -l l 362.0 1 I I i (1) (2) (3) (A) i F . FORCED REASON METHOD EXHIBIT G - INSTRUCTIONS i 5 - SCHEDULED A - EOUIPMENT FAILURE (EXPLAIN) 1 - MANUAL FOR PREPARATION OF DATA B - MAINfENANCE OR TEST 2 - MANUAL SCRAM. ENTRY SHEETS FOR LICENSEE e C - REFUELING 3 - AUTOMATIC SCRAM. EVENT REPORT (LER) { D - REGULATORY RESTRICTION' 4 - OTHER (EXPLAIN) FILE (NUREG-0161) i E - OPERATOR TRAINING

  • LICENSE EXAM' NATION F'- ADMINISTRATIVE (5)

G - OPERATIONAL ERROR (EXPLAIN) j H - OTHER(EXPLAIN) EXHIBIT I - SAME SOURCE l e i 4 9 4 I 1-l b + -}}

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