ML20235M927

Monthly Operating Rept for Jan 1989 for Limerick Unit 1

ML20235M927
Person / Time
Site:	Limerick
Issue date:	01/31/1989
From:	Leitch G, Jerome Murphy PECO ENERGY CO., (FORMERLY PHILADELPHIA ELECTRIC
To:	NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
References
NUDOCS 8902280501
Download: ML20235M927 (6)

Text

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DOCKET NO. 50 - 352 UNIT LIMERICK UNIT 1 DATE FEBRUARY 13, 1989 COMPANY PHILADELPHIA ELECTRIC COMPANY J.

J. MURPHY-REPORTS. SUPERVISOR PROJECTS DIVISION LIMERICK GENERATING STATION-1 1

TELEPHONE (215) 327-1700 EXTENSION 3752 MONTH JANUARY 1989 i

DAY AVERAGE DAILY POWER LEVEL DAY AVERAGE DAILY' POWER LEVEL-(MWE-NET)

(MWE-NET)-

q 1

378 17 0'

2 379 18 0

f 3

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4 380 20 0

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00Ct2T NO. 50 - 352 OATE FEBRUAAY 13, 1989 COM/LETED SV PHILADELPHIA ELECTRIC COYPANY J.

J.

MURPHY REPO4TS SUPERVISOR PRO.'ECTS CIVISION

' LIMERICK GENERATING STATION TELEPHONE (21$) 327-1200 EXTENSION 3752 OPERAi1NG STATl!5.

..............................~........._..

1, UNIT NAME LIHZRICX UNIT 1 NOTES: LOAD WAS REOUCED FF4M 41%

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2. REP 0f; TING PERIOD:

JANUARY. 1989 TO ZERO PERCENT ON

.__.................._.._n

' 3. LICENSE D TH'! AM AL POWER (MWT):

3193 JANUARY 11, 1989 10 PREPARE 4.

NAMEPLATE FATING (GROSS MWE):

1138 f-OR THE SECOND REFUELING

5. OE11GN ELECTRICAL RATING (NET MWE):

1055 OUTAGE WHICH STARTED AT I

6. MAXIMUM UEPENDABLE CAPACITY (GROSS MWE3: 1092 18:00 ON JANUARY 13, 19894 s

7. MAXIMUM DEFENDABLE CAPACITY (NET MWE);

1055

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IF CHA NGES OCCUR IN CAPACITV RATING?, (ITEMS NUMB 2R 3 THROUGH 7) $1NCE LAST FEPORT, GIVE REASONS:

s 9.

POWEA LEVEL TO WHICH RESTRICTED, IP ANY (NET MWE): 550

10. REASONS FOR RESTRICTIONS. IF ANY: POWER WAS RESTRICTED DUE TO OFFGAS ACTIVITY THIS IS INDICATIVE OF COPPER INDUCED CORROSION.

INSPECTIONS WILL DETERMINE f.ATENT OF ANY DAMAGE.

THIS MONTH YR-TO-stTE CUMULATIVE

11. HOURS IN REPORTING PERIOD 744 744 26,304

12. NbMDER Of HOURS REACTOR WAS CRITICAL 251.5 257.5 21,601.8

33. REACTOR RESERVE SHUT 00WN HJURS 0.0 0.0 0.0 14 HOURS GENERATOR ON-LINE 256.5 2.' n 21,289.2

15. UNIT RESERVE SHUTDOWN HOURS 0.0 0.0 0.0

16. GROSS THERMAL ENf;.'RGY GENERATED (MWH) 347,458 347,458 61,145,215

17. GROSS E LECTRICAL ENEROV GENERATED (MWH) 103.530 103,530 19,785,200

18. hET ELEC1HICAL ENERGY GENERATEC (MWH) 80,075 88,0/5 18,930.563 PAGE 1 0F 2

1

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3895030820-r.

OPERATING DATA REPORT (CONTINUED)

DOCKET NO. f,0 - 352 O/TE FEBRUARY 13 1989 THIS MONTH YR-TO-DATE COMOLATIVE

19. UdIT SERVICE FACTOR 34.5 34.5 80.9

30. UNIT AVAILABILITY FACTOR 34.5 34.5 80.9

. 31, UNIT CAPArdTY FACTOR (USING MDC NET) 11,2 11.2 68,2

37. UNIT CAPACITY FACTOR (U' JING DER NET) 11.2 11.2 68.2

23. UNIT FORCED OUTAGE RATfl 0.0 C.0 3.6

....-~......

24..SHUTDCWHS SCHEDULEO OVER NEXT 6 MONTHS (TYFE. DATE. AND DURATION OF EACis):

ADMINISTRATIVE OUTAGE:

JANUARY 11 19093 2 DAYS SECONO REFUELING OUTAGE:

JANUARY 13 1989 110 DAYS

25. IF SHUTDOWN AT END OF REPORT PERIOD. ESTIMATED DATE OF STARTUP: 05/0A/89

16. UN!TS IN IEST STATUS (PRIOR TO COMMERCIAL OPERATION):

FORECAST ACHIEVED INITIAL CRITICALITY 12/19/84 12/22/84 INITIAL ELECTRICITY MID ADRIL 85 4/13/85 COMMERCIAL OPERATION IST QTR 86 2/01/b6 PAGE 2 0F 2

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Docket No. 50-352

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3895030820 Attachment to Monthly Operating Report for January 1989 Limerick Generating Station i

Unit 1 January 1 through January 31, 1989 I.

Narrative Summary of Operating Experiences Limerick Unit 1 began the month in Operational Condition 1 at 41% of rated thermal power.

On 1/11/89, reactor power was reduced to a nominal 15% rated thermal power in preparation for Unit l's second refueling outage.

From this power, the main turbine was tripped and the reactor was scrammed.

Cold shutdown was achieved on January 12.

This period ended in operational condition 5 with a reactor coolant temperature at 0

92 F and a reactor vessel level of 480 inches.

Operational evente that occurred during the month of January included:

On January 4, during an engineering review, control and l

power cables associated with RCIC Steam Supply Line Inboard Isolation Valve and also the HPCI system were i

determined not to be in compliance with the Fire Protection Evaluation Report (FPER).

A fire could cause loss of steam supply to RCIC or spurious starts and the inability to shutdown HPCI.

Roving fire patrols were established in the affected areas.

On January 13, RHR shutdown cooling isolated when a fuse blew while a technician was obtaining voltage readings i

from a trip unit.

When the fuse blew, trip units in the associated card file de-energized causing the shutdown cooling isolation.

After replacing the fuse, the isolation was reset and shutdown cooling was restored to service.

On January 17, a discrepancy between normal level indication and indication provided by a temporary level instrument was observed.

Initial evaluation revealed that all normal level instruments were indicating 19" above actual level.

As a result, all Unit 1 diesel generators and ECCS were declared inoperable.

Following satisfactory completion of the backfill procedure, all instrumentation and associated ECCS for Divisions I thru IV were declared operable.

A rigorous investigation was initiated and it was concluded the temporary indication (pressure transmitters) was not accurate until the reactor vessel disassembly has progressed to the point where the vessel pressure is assured to be atmospheric.

II. Challenges to Main Steam Safety Relief Valves There were no challenges to the Main Steam Relief Valves during the month of January.

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389503b820

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6.9.1'.6

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'A PHILADELPHIA ELECTRIC COMPANY' klMERICK GENER ATINtt STATION P. O, BOX A ~

. SAN ATOG A, PENNSYLV ANI A 19464 (215) 3271200, EXT. 3000 GR AH AM M. LEITCH wecs enssinen?

Lf 488 RICM SsN ER ATimG STATION

'A~

. February-13, 1989 Docket No. 50-352

' License No.'NPF-39 U.S. Nuclear Regulatory Commission Attn

. Document Control Desk ~

Washington, DC.

20555

Subject:

Limerick.-Generating Station Monthly Operating Report Gentlemen:

' Enclosed is the monthly operating report for' Limerick Unit 1

.for..the month of January 1989, forwarded pursuant to Technical

~ ?

-Specification 6.9.1.6.

l Very rulp yours,

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Enclosure

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cc:

William T. Russell, Administrator, Region I, USNRC T. J. Kenny, USNRC Senior Resident Inspector David E. Ney, PA Dept. of Environmental Resources INPO Records Center l

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