ML20094K032

Monthly Operating Rept for Feb 1992 for Wolf Creek Generating Station

ML20094K032
Person / Time
Site:	Wolf Creek
Issue date:	02/29/1992
From:	Bailey J, Mike Williams WOLF CREEK NUCLEAR OPERATING CORP.
To:	NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
References
NO-92-0077, NO-92-77, NUDOCS 9203170358
Download: ML20094K032 (7)

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WTxLF CREEK NUCLEAR OPERATING CORPORATION d$'d."o*EI' March 13, 1992 <

o$$r0HO'*$ l NO 92 0077 -

U. S. Nuclear Regulatory Congnit sion  !

ATTN Document Control Desk  !

Mail Station P1-137 ,

Washington, D. C. 2055$ -

k

Subject:

Docket No. 50-482 February, 1992, !!cnthly ,

Operating Report >

i Gentlemen:-

Attached is the February, 1992 Monthly Operating Report for Wolf Creek Generating Station. This submittal is being made in accordance with the requirements of Technical specification 6.9.1.8.

l Very truly yours,

7) 4 1 - [)sbot -

]

~1 John A. Bailey- ,

i Vice President j Operations-  !

-1 JAB /jra l

Attachment '

cci .A. T. Hovell.(NRC). w/a R. D. Martin (NRC), w/a G. A.-Pick (NRC), w/a W. D. Rockley (NRC). w/a I

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'l -h h h h h 920 170ase 920229 gDR ADOCK 05000482 PDR t P.O. Box 411 i Bur!rngton KS 66839 t Ptone: (316) 3(4-8831 .

An Equal OppurtuM/ Ernployer M f HCVET

WOLE CRI2% !JUCIEAR OPDU@IlG 00RIUMTIQ1 WJIE CRIIK GDIDWT11G STAT 104 1D m!LY OPDaTI1U RIGUIT ,

HOlm!: Februarv YEAR: 1992 . -

Docket ib.: 50-402 l Facility Operating Licenso Ib.: IIPF-42 Report ib. 84 t

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%e fo11 ewing mport highlights the operating experiento of Wolf Crook Generating Station for the month of Febniary,1992. mis rtprt is loing provided pursuant to 'Ibchnical Specification 6.9.1.0.

f I. SLM%RY OF OPIRATI!C 12PIRIDCE

%e unit operated at 100% power through the nonth of Febntag until an unplanned reactor trip occurred February 19,1992 at 2110 hours0.0244 days <br />0.586 hours <br />0.00349 weeks <br />8.02855e-4 months <br /> as a result of the failuru of an electronic ocuupotuit in invertar taill and the subsequent loss of control ptwar to toth nnin focd.eter punps. While the wilt ma down, an inspection of the reactor vessel mvoaled that stun minor leakage existed on throo reactor vessel penetrations. %o urtit nuninod down for the duration of the nonth as those itme aru repairud.

II. MAJCH SAITrY RELATED MA1!TfDWCE JCTIVITIES

1. Replacment of circuit bcmid in invertnr IR411.

2. Replaccmont of unin stoani safety valvo /N057

3. Repair of minor leakage on it.-corn thenttcouple conduit.

4. At nanth's end, investigation into nynir of reactor vessel canopy '

seal weld 1mkage was ongoing.

Wolf Croek Generating Station Monthly Operating Reprt February 1992 Page 1 of 5

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OPDMTI!G DATA RFJOlT DOCITP 10. ,_.50-402 VOLP OIEEK GDIUMT110 !ITATIO1 VOLF CREEK IRCLPHI OPDMTI!U 00RIOMTIQ1 DATE 03-01-92_

GEPIffED BY M. Wil1inyy TEL1 TIDE _3.16-364-8031 OPDIAT110 STATUS

1. He[orting lurlod: FebrualyJ12 Gross lkurs in Rotorting Pericds 62.s_

2. Curruntly Authorimi PoWor Invol(!Nt) 3411 Max. Depand. Ca[ncity(MWo-lbt) JJll Ibsign Electrical IW.ing (MWo-lbt): 1170

3. IV.uer Invol to hhich Boutricted (If Any)(MWu-!bt): 11/A

4. Roasans for restriction (If Any): 11/A

'Ihis 1bnth Yr. to Datn Cunulativo

5. 11unber of Ilours Raactor was Critical 453.2 917.6 44,607.7

6. Ikactor Reserve Shutdown llours 0.0 0.0 339.8

7. Ilours tbnorator on Lino ,_ 453.2 _,_Q61.1 _43,973.4

8. Unit Reservo Shutrkun Ilourn 0.0 0.0 0. 0 __

9. Gross '1herm1 Energy Generata'. (MI) 1,524 dO7_. 2,793,352 142,086,943

10. Gross I'loctrical Energy Generatal (MWil) 534,354 968,975 49.602,401

11. Ibt Electrict.1 IhmJy Ganoratcd (MW11) 506,058 9004d1 47,364,012

32. Roactor Service Factor 65.1 63.7 .

78.4

13. Reactor Availability Factor 65.1 63 7 79.0

14. Unit Service Factor 65.1 59.8 , 77.3

15. Unit Availability Factor 65.1 59.0 77sl.

16. Unit Capacity Factor (Using MDC) 64.3 55.8 ,_23.6

17. Unit Capacity Factor (Using Design Mb) 62.1 53.9 ~1! .1

18. Unit Forced Outage Rate 34.9 ___4.0.2 6.0

19. Shutdcwns Schoduled Over ibxt 6 }bnths (Typo, Date, ard Duration of nach): 11/A

20. If Shut tbWn at Dd of Report Period, Estimted Ihte of Startup: March 11, 1992 Vblf Creek Generating Station l'buthly Operating Report February 1992 Page 2 of 5

AVLTUGE IRILY UtilT IOG 11 VEL 00CKLT 10. 50-402 1KHE 01EEK GDIDWTI!G STATIOi VOLF CREEK IAX3EWt OPDMTIlO CDtIUMTIQ1 IATE 03-01-92 COTLI1 RED D" & W11Mams TELFPIDIE f;16-364-8031 1 0 1111 Fehntaty, .1992 _

DAY AVDUGE DAILY ICE I1VIL DAY AVDUGE IRILY IOM 11 VEL (Mrb-!bt) (Mb!bt) 1 _ 1134 17 1D5 2 1134 18 1135.

3 1133 19 295 4 1134 . _ _ 20 0 5 1134 21 0 6 1134 22 o 7 1134 23 0 8 113f5 24 0 9 1134 25 0 10 1134 26 0 11 1134 27 0 12 1125 20 0 13 1120 29 0 14 1134 30 _ N]_A 15 11 7 31 N/A 16 1135 Walf Czmk Generating Station Manthly Operating Report February 1992 Page 3 of 5

UNIT SHUTDOWN AND POWER REDUCTIONS DOCKET NO. 50-432 WOLF CREEK GENERATING STATION WOLF CREEK NUCLEAR CPERATING CORPORATICN DATE 03-01-92 CCMPLETED BY M. Williams REPORT MCNTH February. 1992 TELEPHONE 316-364-8831 TYPE METHODS SHUTTING F: FORCED DURATION REASON DOWN THE REACTOR CORRECTIVE ACTICNS/COMMHiTS No Date S: SCHEDULED t_ HOURS) (1) OR REDUCING POkTR(2) 2 920219 F 242.8 A 3 Resctor trip at 2110 hours0.0244 days <br />0.586 hours <br />0.00349 weeks <br />8.02855e-4 months <br /> February 19. 1992 on steam .

generator 10-10 level as a result of an electronic l

co::ponent failure in inverter NN11 and the subsequent loss of centrol power for both main feedwater pumps.

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EIDMARY: The unit operated continuously at full power February 1 through 18 until a reactor trip February 19. 1992. The unit remained shut down for the remainder of the month.

1) REASON: A: EQUIPMENT FAILU:LE (EKPLAIN) E: OPERATOR TRAINING AND LICENSE EXAMINATION (2) ME30D: 1. PAhJAL B .- MAINTENANCE OR TEST F: ADMINISTRATIVE 2. MANUAL SCIULM C: Rt.r ut. LING G: OPERATIONAL ERROR (EXPLAIN) 3. AUTLMATIC SCRJLM D: REGULATORY RESTRICTION H: CTHER (EIPLAIN) 4. CONTINUED

5. REDUCED LOAD

9. OTHER Wolf Creek Generating Station Monthly Operating Report February 1992 Fage 4 of 3

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WLLP CREEK 10CLFAR OPMIAT11G CCRIGIATIOi ,

WOLF CREEK GDIERATI!G STATION 1RTIT 10.1 Inmi Febmary, 1992 SUNARY OF OPERATDC EXPERIDCE i

LisF , bolm in cluvio. logical soquenco is a sunnary of operating experienoos for this nanth whiu) mquimd load reduction or rueultcd in significant non-load mlatixt incidents.

DSTJ . TEE .!vint February 1, 1992 0000 hours0 days <br />0 hours <br />0 weeks <br />0 months <br /> Unit at 100% powr.

February 19, 1992 2108 hours0.0244 days <br />0.586 hours <br />0.00349 weeks <br />8.02094e-4 months <br /> Ioss of invertor 11N11, and subsequent loss of control paar for unin foodwater ptmps.

2110 hours0.0244 days <br />0.586 hours <br />0.00349 weeks <br />8.02855e-4 months <br /> Reactor trip on steam generatcr lo-lo level. Unit entertd Mode 3, hot standby.

February 21, 1992 0445 hours0.00515 days <br />0.124 hours <br />7.357804e-4 weeks <br />1.693225e-4 months <br /> Entered Modo 4, hot shutdwn.

1039 hours0.012 days <br />0.289 hours <br />0.00172 weeks <br />3.953395e-4 months <br /> Entered Mode 5, cold shutdown.

Feb mary 29, 1992 2400 hours0.0278 days <br />0.667 hours <br />0.00397 weeks <br />9.132e-4 months <br /> Unit in Mode 5, cold shutdown.

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l t t-Wolf Cmek Generating Station Monthly Operating Report February 1992 Page 5 of.5

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