ML20059K149

Monthly Operating Repts for Aug 1990 for Limerick Generating Station,Units 1 & 2

ML20059K149
Person / Time
Site:	Limerick
Issue date:	08/31/1990
From:	Leitch G, Meck K PECO ENERGY CO., (FORMERLY PHILADELPHIA ELECTRIC
To:	NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
References
NUDOCS 9009210179
Download: ML20059K149 (10)

Text

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3902-099780 T.S,6.9.1.6-if PHILADELPHIA ELECTRIC COMPANY:

- 1,lMERICK GENER ATING GTATION P. O. DOX A -

SAN ATOG A. PENNSYLV ANI A 19464 '

. (215) 3271200. EXT. 3000

• a^H , 3,,7;,',,y,t c H September =7,_1990 u........ .......u, .

Dockat Nos. 50-352 50-353

. License Nos. NPF-39.

NPF-85

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@T8@3lmo& ear;3ege),atesy2CaesaissiongE* '  !

Attn:- Document Control Desk = '

. Washington,.DC-'20555-i

Subject:

Limerick Generating Station Monthly Operating Report For l Units 1 and'2'

-l Enclosed are the monthly operating reports for Limerick Units : u 1 and 2- f o r , t h e - F.o n t h o f August, 1990 . forwarded pursuant' to '!

Technical Specification 6.9.1.6.  !

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Very trul yours 0%?' p DQ,

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Enclosure cc: T. T. Martin, Administrator,' Region I, USNRC i T. J._ Kenny, USNRC Senior Resident' Inspector '

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9009210179 900931 .0 h{}. [{2 -I PDR ADOCK 05000352 [. .I s.. . R PNU f' <h' -if

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3902099780 A Docket No. 50-352 '

Attachment to Monthly. j Operating Report forL t

August 1990L 4 Limerick Generating Station t l , Unit 1 L August t through August 31,19901 -

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'(' .L I; Narrative Summary of Operating Experiences j

' Limerick Unit 1 began the month of August at a nominal 100% of rated thermal power. On 1' August 3, reactor power was briefly reduced to 97% for a Control Rod pattem adjustment.1.ater that day,-

power was again reduced to 91.5% to perform Main Turbine control valve testing. On August 10, reactar; ~;

power was briefly reduced to 95% for a Control Rod pattom adjustment. On August 13, reactor power was :

briefly reduced 1o 98% due to high turbine back pressure. ' On August 21, a scram pliot solenoid valve on Control Rod 30-07.was found to be leaking air, causing a low scram air header pressure condition. .On  :

August 22, reactor power was reduced to 72% and the Control Rod was inserted and isolated in accordance '

with Technical Specifications. Reactor power was restored later that day following a Control Rod pattom 1 adjustment.' On August 27, reactor power was briefly reduced to 97.5% due to high turbine back pressure.o i

.On August 31, reactor power was briefly reduced to 90% for a Control Rod pattom adjustment.: Limerick '

' 1,

-Unit 1 ended the month of August at a nominal 100% of rated therma! power.

Operational events that occurred tring the rnonth of August included: .

. .On August 13, the reactor water cleanlup system (RWCU) isolated due to a Division I and

, IV steam leak detection system actuation. . The isolation occurred after the regenerative ,

e heat exchariget toorn tettiperatute exceeded the trip ist point.- The rise Iri roorn temperature

resulted from increased steam leakage from the heat exchanger outlet drain valves. Room ,

temperature had reached 119 degrees Fahrenheit at the time of the isolation, but decreased '

following the isolation, allowing the isolation to be reset. The RWCU system was returned .  ;

to service, but required manual isolation soon thereafter due to increasing room temperature.

A 4 hour4.62963e-5 days <br />0.00111 hours <br />6.613757e-6 weeks <br />1.522e-6 months <br /> NRC notification was made.for an Engineered Safeguards Feature actuation.

Maintenance repaired the leaking outlet drain valves and the system was retumed to service on August 16. , ,

- On August 31, a one hour nothication was madt; to the NRC when it was determined that l b.

Unit 1 had been operating in an unanalyzed condition. Floor plates.which serve as a flood .  !

p barrier and provide a steam rollof function in the event of a high or moderate energy line -

' break were found in a condition that rendered them inoperable.' Some floor plates had been opened and others were restricted by scaffolding, which was being erected for the refueling outage. Further investigation revealed that other flood barriers had been rendered i inoperable when penetrations through walls'were made to support construction work. .j II. CHALLENGES TO MAIN STEAM SAFETY RELIEF VALVES g

There were no challenges to the Main Steam Relief Valv'es during the month of August.

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L~ ~ AVEFIGE DAILY t) NIT POWE3 LEVEL- _.

DOCKET NO. 50.- 352

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. UNIT"1 UNIT LIMERICK -

.DATE SEPTEMBER 6.1990 - -

COMPANY PHILADELPHIA ELECTRIC--------- COMPANY KARL MECK REPORTS SUPERVISOR' BUSINESS UNIT ~

LIMERICK GENERATING STATION TELEPHONE (215) 327-1200 EXTENSION 3320 MONTH As GUST 1990 DAY ' AVERAGE DAILY POWER LEVEL DAY AVERAGE DAILY POWER LEVEL (MwE-NET) (MWE-NET) 1 1024 17- 1013 1019 18 1015 2

1014 3 1003 19

^

4 1006 20. 1020.. _

1005' 27 1021.-

5 1011' 22 10CD' 6.

23 --

1018 I

7 1019 1021.- .24- E1014 .

8 1026- 25 999 9 '- ^

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1009 ~

10 1019 26

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11 '10 9- 27 ' -991' -

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1018 . 28 - t 010_.-

959 1015-

13 1031- SU- -1021 _..

14 1000 '31 1n16 15 16 - 1019

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-OPEPCTING DATA LEPORT

$390209'97.80'E ~

DOCKET NO. 50 - 352. - .--

DATE SEPTEMBER 6.1990 33

-e3 COMPLETED BV PHI LADELFs41 A : ELECTRIC COMPANY- ,

KARL MECK.

REPORTS SUPERVISOR' BUSINESS UNIT-- .

LIMERICK GENERATING STATION

-7 TELEPHONE (215)~327-1200 EXTENSION 3320 .

OPERATING" STATUS. ~

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1. UNIT NAME: LIMERICK . UNIT 1- fNOTES: THERE WAS ONE ' LOAD' REDUCTION I _

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2. REPORTING PERI 00: AUGUST.~1990. ~.1 GREATER THAN'20% THIS' MONTH. Li -.

3. LICENSED THERMAL POWER (MWT): 3293 l

_____- 1

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-- -- 4 NAMEPLATE RATING (GROSS MWE): 1138 l'

'1055

5. DESIGN ELECTRICAL RATING (NET MWE): I l

6. MAXIMUM DEPENDABLE CAPAC*TV (GROSS MwE): 1092 :l

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7. MAXIMUM DEPENDABLE CAPACITY (NET MwE): 1055 - 1 -!.-

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8. 'IF CHANGES OCCUR IN CAPACITV 4ATINGS (ITEMS-NUMBER 3 THROUGH 7) SINCE LAST REPORT. GIVE REASONS:

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.9c POWER LEVEL TO WHICH RESTRICTED. IF ANV'(NET WWE):

- . 10. REASONS FOR RESTRICTIONS. IF.ANY .

i 'THIS MONTH ~VR-TO-DATE CUMULATIVE

~ '

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- ' 11. HOURS IN REPORTING PERIOD.~ 4744 5.831 __

' 40.151'

12. NUMSER'OF HOURS-REACTCR WASLCRITICAL . -744.0 5.343.9 232.472.7' -

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13 ,, REACTOR: RESERVE' SHUTDOWN HOURS . _ J0.0. ' O '. O TO.0-j  ;. .

_ ---- ~ 744.O' 31.879.1-14 HOURS" GENERATOR:ON-LINE~

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~ 5.207.5 15'. UNIT RESERVE SHUTDOWN HOURS- :0.0- 0.0 'O.O' 2.440.26h! 16.730.335

16. GROSS THERMAL ENERGY GENERATED'(MWH)' 94.593.775 -

- 5.382.080-

17. GROSS ELECTRICAL ENFRGY GENERATED"(MwH) ]85.070 ]O.568.650

19. NET' ELECTRICAL ENERGV GENERATED (MWH) 753.708- 29.231.310

. 5.174.91] _

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'DATE SEPTEMBER 6.1990 a ..

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THIS MONTH. .VR-TO-DATE. ' CuerJLATIVE.

19. UNIT SERVICE FACTOR' L100.02 ~'89.3 79.4- ,

20. UNIT AVAILABILITY FACTOR -100.0 89.3-  :.79. A :.

1 'JNIT CAPACITY FACTOR (USING MDC. NET) 96.0 .84.1 69.0 -

22. UNIT CAPACITV FACTOR _(USING DER NET) 96.0 84.1- 69.0

.23. UNIT FORCED OUTAGE RATE O.0 . ' 3 . 7 .. 3.1 _

24 SHUTDOWNS SCHEDULED OVER NEXT 6 MONTHS (TYPE.' DATE. AND DURATION OF EACH): '

REFUELING OUTAFE SEPTEMBER 07.1990: 75 DAYS

25. IF SHUTDOWN AT END OF REPORT PERIOD. ESTIMATED DATE'OF STARTUP:

26. UNITS IN-TEST STATUS (PRIOR TO COMMERCIAL OPERATION): FORECAST ACHkEVED

~

INITIAL CRITICALITV' -

12/19/84_ 12/22/84 INITIAL ELECTRICITV

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MID. APRIL 85 4/13/85' _

COMMERCIAL OPERATION _ _

1ST_QTR 86; 2/01/86 .

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UNIT - SHUTDOWNS ' END POwE',1 CEDUCTIONS DOCMET NO.:50 -'352-

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'tJNIT NAME LINEZICC ' UNIT'1' --

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DATE-SEPTEMBER 6,1990f. .' " ' W Fi REPORT MONTH AUGUST.' 1990  : COMPLETED BY PHILADELPHIA ELECTR C'COMPAP .

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LIMERICM GENERATING STATION

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- TELEPHONE (215):327-1200 EXTENSION 3320-

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.' :I . .. *ETHOD OF 1 LICENSEE SYSTEMICOMPONENTI.CAUSE AND CORRECTIVE. ^~ ~

REASON SHUTTING DOWNl EVENT CODE l CODE -l. ACTION.TO NO. DATE' . l TYPE l DURATIONREFORT a l'(1)l (HOURS)H '(2)- REACTOR (3) l (4) 1 (S) l: PREVENT RECURRENCE' 1- Ji -1 l' . I: -1 1 1 7 28 900803 i S-l 000.0 ~ F-! 4 l N/A l ZZ i! ZZZZZZ ^ l1 LOAD WAS REDUCED 3% TO PERrORM CONTROLu'~ ~ ' '

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..! ROD. PATTERN. ADJUSTMENT.

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29 '900803

_.S- 000.0 -I .8 1 4 l N/A ' l ' ZZ ' ZZZZZZ - l LOAD wAS REDUCED B.5% TO PERFORM MAIN : '- '

I ~l 1- . ~l TURBINErCONTROL VALVE TESTING.- [

30 900810 5 000.0 l F 4 "N/A' ZZ ZZZZZZ LOAD WAS REDUCED 5% TO PERFORM CONTROL-I ROD. PATTERN ADJUSTMENT.

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31 900813 F 000.0. F 4 N/A ~ ZZ- t ZZZZZZ : 1 LOAD WAS REDUCED 2% DUE TO HIGH TURBINE -

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32 900822 .F '000.0 - B 4 N/A ZZ . ZZZZZZ ~l: LOAD WAS REDUCED 28% DUE TO A CONTROL i 1-. ROD. SCRAM PILOT VALVE LEAMING BY;'

i 33' 900827.  ? 000.0. F 4- N/A ZZ ZZZZZZ_ LOAD WAS REDurED 2.5% DUE TO'HIGH TURBINE BACM PRESSURE; I

34 .900831 S 000.0 5 i 4 N/A ZZ' j ZZZZZZ. LOAD'WAS REDUCED 10% TO PERFORM CONTROL '

l  ! .l~ . ROD PATTERN ADJUSTMENT.

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F -- FORCED -REASON - METHOD . EXHIBIT G - INSTRUCTIONS ~ ,

FOR PREPARATION 05 DATA S - SCHEDULED A~- EQUIPMENT.. FAILURE (EXPLAIN) 1 '- MANUAL.

TB - MAINTENANCE OR. TEST-- 2 - MANUAL SCRAwa- ENTRY SHEETS FOR LICENSEE-3 -' AUTOMATIC-SCRAM. EVENT REPORT: (LER)

'C . REFUELING . . . _

D -' REGULATORY RESTRICTION . _ .. 4~-.OTHER (EXPLAIN)-  ? FILE'(NUREG-0161)-

E - OPERATOR' TRAINING + LICENSE EXAMINATION:

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- ADMINISTRATIVE .. .

(5).  :

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-EXHIBITnI - SAME SOURCE-c H...OTHER(EXPLAIN)

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-3902099780 -

Docket No. 50-353 ~

Attachment to Monthly .

Operating Report forf

" August 1990 .

Umerick Generating Station.

Ud 2 '

August 1 through August 31,1990 .

[ 1. . Narrative Summary of Operatina Exnertences I

f _

Umerick Unit 2 began the month Of August at a nominal 100% of rated thermal power. On August 3, at 0236 hours0.00273 days <br />0.0656 hours <br />3.902116e-4 weeks <br />8.9798e-5 months <br />, reactor power was reduced ;to.17% due to an Electro Hydraulic Control (EHC)

U " system oR leak.1 At 0440 hours0.00509 days <br />0.122 hours <br />7.275132e-4 weeks <br />1.6742e-4 months <br />, the Main Turbine Generator was tripped with the reactor at 13% power.

l bypassing steam to the main condenser. On August 6, at 0706 hours0.00817 days <br />0.196 hours <br />0.00117 weeks <br />2.68633e-4 months <br />, following EHC leak repairs, the Main 4

Turbine Generator _was synchronized to the grid.' Power ascension commenced and achieved 100% on

. August 8. On August to, reactor power was brie 6y reduced to 91% to perform Main Turbine control valve e testing and a Control Rod pattom adjustment. On August 12, reactor power was reduced to 85% to perform p repairs to the Main Transformer 'B'. phase cooler oil pump and fan power supply, power was restored to 100% on August 13.

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Ori August 19, reactor power was reduded and at 1943 hours0.0225 days <br />0.54 hours <br />0.00321 weeks <br />7.393115e-4 months <br /> the Main Turbine Generator was tripped and ,

the reactor manually scrammed due to EHC system oR leaks. Following EHC system repairs, on August 26 at 0504 hours0.00583 days <br />0.14 hours <br />8.333333e-4 weeks <br />1.91772e-4 months <br />, reactor, criticality was, achieved.: . Power ascension commenced and the Main Turbine 4(~ Generator was synchronized to the grid on August 27 at 1300 hours0.015 days <br />0.361 hours <br />0.00215 weeks <br />4.9465e-4 months <br />. .-Power ascension continued and-Limerick Unit 2 ended the month of August at a nominal 98% of rated thermal PWaiting Completlon of LPRM

- calibrations. > '

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., 4 jJ sll. Challenges to the Main Steam Safety Relief Valves i

There were no challenges to the Main Steam Safety Relief Valves during the month'of August, b  :

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LIMERICK GENERATING STATION TELEPHONE I (215) 327 200 EXTENSION 3320 -

.n MONTH -AUGUST 1990 _

DAY AVERAGE DAILY POWER' LEVEL DAV AVERAGE. DAILY POWER LEVEL: _

- (MWE-NET) -(MWE-NET): .

1 1049' 17 '1041 2 1053 '1B .1041- _ . ,

- 19 ; 797. 'F 3 128 4' O 20 -O'-

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7 '765 . 23 : 0. .

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8 1016' 24 O' _

'9- 1052  : 25. - 0 ,. - ^

'to 1040 :26

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11 ~ 1037 -- , . .. .. ..

1123 _ , ....

795-  :-

~12 f1033 -- .; 1.28

.13 _ 1044- -H 29 1937 .;. , 7 .--

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1 DOCKET NO. 50 - 353 i _

DATE SEPTEMBER 6.1990'- _ _ . ,

COMPLETED BV PHILADELPHIA ELECTRIC COM2ANY- _

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-MARL MECK . .

REPORTS SUPERVISOR BUSINESS UNIT. .

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~ LIMERICK GENERATING STATION-TELEPHONE (215) 327-1200. EXTENSION 3320 OPERATING STATUS _- _

1. UNIT-NAME: LIMERICK UNIT 2 NOTES:-THERE WERE Two FORCED SHUTDOWN

2. REPORTING' PERIOD: AUGUST. 1990 AND ONE REACTOR SCRAM THIS 3.'LICENSEDJTHERMAL POWER (WWT): 3293 MONTH.

4. NAMEPLATE RATING (GROSS MWE): -1138- ,

5. DESIGN ELECTRICAL RATING (NET WWE) .  : 1055-

-6. MAXIMUM'DEPENDA8LE CAPACITY..(GROSS._MwE): 1092 ~l

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7. MAXIMUM DEPENDABLE CAPACITY-(NET MWE): 1055 _ _ _

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-8. IF CHANGES UCCUR IN'CAPACITV RATINGS (ITEMS NUMBER 3 THROUGH 7) SINCE LAST REPORT. GIVE REASONS:

9. POWER LEVEL TO WHICH RESTRICTED.IF;ANY.(NET-MwE): - ,

10. REASONS FOR RESTRICTIONS. IF - ANY:

THIS MONTH VR-TO-DATE- .. CUMULATIVE- ,

111. HOURS IN REPORTING PERIOD "744 5.663 _

5.663 -

12. NUMBER OF HOURS REACTOR wAS-CRITICAL '590.7 4.711  : .4.711.4 - --

13.'Rr4CTOR RESERVE SHUTDOWN HOURS - 0.0  : 0.0- 0.0 14 HOURS GENERATOR ON-LINE- ,.

484.3 4.449.T- 4.449.7'-

15.1 UNIT ~ RESERVE' SHUTDOWN HOURS: '.O.0; ' O.O - 0.0

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16.-GROSS THERMAL.. ENERGY: GENERATED (WWH) 1.508.436 -14.135 4.135.417-

- I . _ . . . . . . -L_. .

-480.600

17. GROSS ELECTRICAL ENERGY GENERATEDj (WWH)_ ..

a4.657;116 4.657.116'

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18. NETc ELECTRICAL ENERGY GENERATED'(MwH)'

~

460.620~ '4.476.784 _ 4.476.~784 PAGE 1 OF 2

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' DOCKET'MO.' 50 -L353~

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DATE SEPTEMBER 6.1990 ..

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THIS MONTH' VR-TO-DATE - 1 CUMULATIVE

19. UNIT SERVICE FACTOR 65.1 ' 78.61 78.6 20.'UNITTAVAILABILITY FACTOR- 65.1. 78.6 ~ 3.6 -

21 UNIT CAPACITY FACTOR (USING MDC NET) '58.7 :74.9 74.9

22. UNIT CAPACITY FACTOR (USING DER NET)- 58.7- 74.9 74.9

23. UNIT FORCED OUTAGE. RATE 34.9 12.5: 12.5.

24 SHUTDOWNS SCHEDULED CVER NEXTL.6 MONTHS (TYPE.~ DATE. AND DURATION OF. EACH):

~

25. IF SHUTDOWN AT END OF REPORT PERIOD. ESTIMATED DATE OF STARTUP' _.

- 26. UNITS IN TEST STATUS (PRIOR TO COMMERCIAL OPERATION): FCRECAST ACHIEVED..

INITIAL CRITICALITY 08/12/89; 08/12/09.

09/01/09 09/01/89 >

INITIAL ELECTRICITV

' COMMERCIAL OPERATION '02/01/907 01/09/90 C- . .. ,. ... . .

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3902099780-UNIT SHUTDOWNS .tND POWE:t f' EDUCTIONS UNIT NAME LINE2ICK ~ UNIT 2 DATE SEPTEMBER 6.1990 AUGUST. 1990 COMPLETED BY PHILADELPHIA ELECTRIC COMPANY REPORT MONTH KARL MECK REPORTS SUPERVISOR' BUSINESS UNIT' LIM *. RICK GENERATING STATION _

TELEPHONE (215) 32T-1200 EXTENSION 3320 COMPONENTI CAUSE AND CORRECTIVE i l l l 'l -METHOD OF l LICENSEE ISYSTEM CODE l ACTION TO EVENT'  ! CODE l . ITYPEIDURATIONl REASON l SHUTTING DOWNl (4) (5) i PREVENT RECURRENCE NO.) DATE l:(1)! (HOURS){ -(2) I REACTOR (3) l REPORT s l I i i I i  !

4 N/A ZZ l ZZZZZZ l REACTOR POWER WAS REDUCED 83% DUE TO 000.0 'A 1 l 900803 F l l AN EHC LEAK.

19 ~ j i 1

8 4 l N/A _ZZ ZZZZZZ I TURSINE TRIPPED TO REPAIR EHC LEAK.

- 20 11900003 F 074.4 l REACTOR REMAINED AT 13% power IN BYPASS.

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' 000. O '- Si h- 4 l N/A  ! ZZ l ZZZZZZ' i LOAD WAS REDUCED 9% TO PERFORM MAIN 21 900610 S l l l TURBINE CONTROL VALVE TESTING AND

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' j- l- " I CON 1ROL ROD PATTERN ADJUSTMENT.

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4 'N/A' I 'ZZ- l ' ZZZZZZ l LOAD WAS REDUCED 15% TO REPAIR THE MAIN' A

000.0 'l 22 900812 F , ._

1 1 TRANSFORMER S PHASE COOLER POWER SUPPLY.

1 I .. l. :t l N/A~ :l -ZZ. ZZZZZZ' l REACTOR POWER isAS REDUCED. THE MAIN 23 900819 ~

.F- 185.3 :A J l. TURBINE TRIPPED AND REACTOR SCRAMMED TO '

l REPAIR EHC LEARS.

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