ML20195F882
| ML20195F882 | |
| Person / Time | |
|---|---|
| Site: | Limerick  |
| Issue date: | 10/31/1988 |
| From: | Leitch G, Jerome Murphy PECO ENERGY CO., (FORMERLY PHILADELPHIA ELECTRIC |
| To: | NRC OFFICE OF ADMINISTRATION & RESOURCES MANAGEMENT (ARM) |
| References | |
| NUDOCS 8811220395 | |
| Download: ML20195F882 (6) | |
Text
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- AVERAGE DAll.Y' UNIT POWER LEVEL.
DOCKET NO. 50 - 352 UNIT LIWERICK UNIT 1 fl; DATE NOVEksER 14, 1998 M
COMPANY PHILADELPHIA ELECTRIC COMPANY J. J. MURPHY REPORTS SUPERVISOR PROJECT DIVISION LIWERICK GENERATING STATION TELEPHONE (215) 327-1200 EXTENTION 3752 b
( flH OCTOBER 1988 DAY AVERAGE DAILY POWER LEVEL DAY AVERAGE DAILY POWER LEVEL (WWE-NET)
(WWE* NET) 1 588 17 545 2
585 18 539 3
597 19 544 4
591 20 541 5
600 21 560 6
603 22 550 7
609 23 547 8
605 24 549 9
587 25 547 to 597 26 551 11 600 27 552 12 603 28 546 13 610 29 549 14 564 30 541 1
15 554 31 547 l
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885125970 CFE2ATING DATA REPORT DOCKET NO. 50 - 352 DATE NOVEMBER 14 1988 COMPLETED BY PHILADELPHI A ELECTRIC COMPANY r
J.
J.' MURPHY REPORTS SUPERVISOR PROJECT O! VISION LIMERICK GENERATING STATION TELEPHONE (215) 327-1200 EXTENTION 3752 OPERATING STATUS
- 1. UNIT NAME: LIMERICK UNIT 1 1 NOTES: THE UNIT OPERATED UNDER AN l
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- 2. REPORTING PERIOD:
OCTOSER. 1988 l
ADMINISTRATIVE LOAD l
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- 3. LICEN$ED THERMAL power (WWT):
3293 RESTRICTION DUE 70 i
l 4 NAMEPLtTE RATING (GROSS WWE):
1138 l
ELEVATED OFFGAS ACTIVITY.
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l S. DESIGN ELECTRICAL RATING'(NET WWE):
1055 i
THE3E WERE NO REPORTA8LE l
- 6. MAXIMUM DEPENDA8LE CAPACITY (GROSS WWE): 1092 LOAD REDUCTIONS OF 20% OR
- 7. MAXIMUM DEPENDA8LE CAPACITY (NET WWE):
1055 l
GREATER.
l 8.
IF CHANGES OCCUR IN CAPACITY RATINGS (ITEMS NUM8ER 3 THROUGH 7) $!NCE LAST REPORY. GIVE REASONS:
- 9. POWER LEVEL TO WHICH RESTRICTED, IF ANY (NET WWE):
610
- 10. REASONS FOR RESTRICTION $. IF ANY:
POWER IS ADMINISTRATIVELY RESTRICTED DUR TO HIGH OFFGAS ACTIVITY.
THIS !$ INDICATIVE OF COPPER INDUCED CORROSION ON A FINITE NUMBER OF FUEL R005.
INSPECTION DURING THE REFUELING OUTAGE WILL DETERMINE THE 2XTENT OF ANY DAMAGE.
i THIS MONTH YR TO.DATE CUMULATIVE i
(
- 11. HOVR$ IN REPORTING PERICO 745 7.320 24.096
- 12. NUM8ER OF HOURS REACTOR WAS CRITICAL 745.0 7
...... 012.3 19.880.3
- 13. REACTOR RESERVE SHUTDOWN HOURS 0.0 0.0 0.0 14 HOURS GENER A10R ON*LINE 745.0
...... 006.0 19.568.7 7
- 15. UNIT RESERVE SHUTDOWN HOURS 0.0 0.0 0.0
- 18. GROSS THERNAL ENERGY GENERATED (WWH) 1.441.874
.... 496,112 19
$8
.... 392.493
.5 17 GROSS ELECTRICAL ENERGY GENERATED (WwH) 446.660 6.241
........ 130 18
.... 940.540*
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- 18. NET ELECTRICAL ENERGY GENERATED (WwH) d23.986 18 I
.... 977.551 S
.... 145.388 PAGE 1 0F 2
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3885125970 OPERATING DATA SEPORT (CONTINUED)
DOCKET NO. 50 - 352-DATE NOVEheER 14
........... 1984 THI$ WONTH YR-TO-DATE CUWULATIVE
- 19. UNIT SERV!CE FACTOR 100.0 95.7 St.2
- 20. UNIT AVAILABILITY FACTOR 100.0 95.7 St.1 I
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- 21. UNIT CAPACITY FACTOR (U$ING WOC NET) 53.9 77.4 71.4.
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- 22. UNIT CAPACITY FACTOR (U$!NG DER NET)
- 3.9 77.4 71.4 -
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- 23. UNIT FORCED OUTAGE RATE 0.0 4.3 4.0 i
24 $HUTDOWNS SCHEDULED OVER NEXT 6 MONTHS (TYPE, DATE. AND DURATION OF EACH):
SECOND REFUELING OUTAGE.
JANUARY 13 1989 Il00AVS
- 25. IF $HUTDOWN AT END OF REPORT' PERI 00. ESTIMATED DATE OF'5TARTUP:
i
- 26. UNIT $ IN TEST STATUS (PRIOR TO COWutRCIAL OPERATION):
FORECA$7 ACHIEVED INITIAL CRITICALITY 12/19/84 12/22/84 INITIAL ELECTRICITY MID APRIL 85 4/13/85 COMMERCIAL OPERATION IST OTR 88 2/01/88
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3885125970 II UNIT SHUTDOWNS AND POTER REDUCTIONS DOCKET NO. 50 - 352 UNIT KAME LIMERICK UNIT 1 DATE NOVEMBER 14 1988 REPORT MONTH OCTOBER. 1988 COMPLETED DV PHILADELPHIA ELECTRIC COMPANY J.
J.
MURPHY REPORTS SUFERVISOR P90 JECT DIVISION LIMERICK GENERATING STATION TELEPHONE (215) 327-1200 EXTENTION 3752 I
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l l METHOD OF l LICENSEE ISYSTEMICOMPONENTI CAUSE AND CORRECTIVE I
ITVPEl DURATION lREASONISHUTTING DOWN!
EVENT l CODE I CODE I ACTION TO NO.!
DATE I (1)l (HOURS)l (2) l REACTOR (3) l REPORT s I (4) 1 (5) l PREVENT RECURRENCE I
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I (1)
(2)
(3)
(4)
F - FORCED REASON METHOD EKHIBIT G - INSTRUCTIONS S - SCHEDULED A - EOUIPMENT FAILURE (EXPLAIN) 1 - MANUAL FGR PREPARATION OF DATA 8 - MAINTENANCE OR TEST 2 - MANUAL SCRAM.
ENTRY SHEETS FOR LICENSEE C - REFUELING 3 - AUTOMATIC SCRAM.
EVENT REPORT (LER)
D - REGULATORY RESTRICTION 4 - OTHER (EXPLAIN)
FILE (NUREG-0161)
E - OPERATOR TRAINING + LICENSE EXAMINATION F - ADMINISTRATIVE (5) 4 G - OPERATIONAL ERROR (EXPLAIN) l N - OTHER(EXPLAIN)
EXHIBIT I - SAME SOURCE i
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3885125970 Docket No. 50-352 Attachm:nt to Monthly Operating Report for October 1988
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Limerick Generating Station Unit 1 October 1 through October 31, 1988 I.
Narrative Summary of Operating Expnriences Limerick Unit 1 entered October at 62% of Rated Core Thermal Power (RCTP) as a result of a continuing fuel performance (off gas) problem.
In order to maintain condenser off-gas activity below the PECo corporate administrative limit for Limerick, reactor power was reduced to 57% on October 14.
As of October 31, Unit 1 was operating at 57% RCTP with an offgas activity of 50,000 uCi/sec.
Operational events that occurred <?.uring the month of October included:
On October 7, 1988, the
'lC' Condensate Pump lower motor bearing failed (cause still under investigation).
0 0
Bearing temperatures rose from 120 F to 270 P and vibration levels exceeded alarm levels forcing the shutdown of the pump.
The resulting feedwater flow transient caused a sudden 12 inch drop in reactor level, and required operator intervention to prevent a scram.
The bearing was subsequently replaced, and the pump is available for standby use.
On October 9, 1988, with the feedwater level controller utilizing the
'A' narrow range reactor water level instrument, the
'A' narrow range level indication rose to 37 inches.
Simultaneously, the
'B' and
'C' level indicators displayed below normal and decreasing values.
Investigation revealed that two instrument valve packing leaks were causing the slow depressurization of an instrument rack reference leg.
The feedwater controller input was temporarily switched to the
'B' narrow range level instrument until the packing was tightened and the
'A' narrow range level indication returned to normal.
On October 13, 1988, a Main Control Room (MCR) 'igh radiation signal was initiated when the
'C' channel exceeded its trip setpoint.
Three additional isolations occurred from October 13-21.
Air samples taken an the ductwork revealed radiation levels less than the lower limit of detection (LLD).
The
'A' channel also exhibited similar trends.
The cause for these isolations is currently under investigation.
Resolution of this matter will be published in a supplement to the LER before March 1, 1989.
II. Challenges to Main Steam Safety Relief Valves There were no challenges to the Main Steam Relief Valves during October.
3885125970
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PHILADELPHIA ELECTRIC COMPANY klMERICK GENER ATING STATION P. O. SOX A S AN ATOG A. PENNSYLVANI A 19464 (215) 3271200. EXT. 2000 GR AH AM M. LEITCH u.....;.':::::::'.,..
November 15, 1988 T.S.
6.9.1.6 Docket No. 50-352 License No. NPF-39 Director Office of Resource Management U.S.
Nuclear Regulatory Commission Washington, DC 20555 Attention:
Document Control Desk
Subject:
Limerick Generating Station Monthly Operating Report Gentlemen:
Enclosed is the monthly operating trsport for Limerick Unit 1 for the month of October, 1988, forwarted pursuant to Technical Specification 6.9.1.6.
Very truly yours, fp4.
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JJM/sp t
Enclosure cca 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 NI
.