ML20072S586

Monthly Operating Rept for Mar 1991 for Wolf Creek Generating Station

ML20072S586
Person / Time
Site:	Wolf Creek
Issue date:	03/31/1991
From:	Bailey J, Mike Williams WOLF CREEK NUCLEAR OPERATING CORP.
To:	NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
References
NO-91-0116, NO-91-116, NUDOCS 9104160372
Download: ML20072S586 (7)

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..- o W8LF CREEK ' NUCLEAR OPERATING CORPORATION John A Dailey V6ce President operations April 11,1991 NO 91-0116 U. S. Nuclear Regulatory Commission ATTN: Document Control Desk Mail Station P1-137 Washington, D. C. 20555

Subject:

Docket No. 50-482: March, 1991 Monthly Operating Report Gentlemen Attached is the March 1991 Monthly Operating Report for Wolf Creek Generating Station. This submittal is being made in accordance with the requiraments of Technical Specification 6.9.1.8.

Very truly yours, l A /I /

N-j[l /A4 C4 9M 6 John A. Bailey Vice President Operations JAB /aem Attachment cc L. L. Gundrum (NRC), w/a A. T. Howell (NRC), w/a R. D. Martin (NRC), w/a D. V. Pickett (NRC), w/a 10331  !

9104160372 pon neocn o *suuoy..,.

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g FDK p PO. Box 411/ Burbngton, KS 66839 i Phone. (316) 3'24 8831

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WOLP CREEK NUCLEAR OPERATDG CCRPTATICH NOLF CREEK GENERATDG STATION t

!ON1HLY OPERATDG REPORT ITNIH: March YEAR: 1991 Docket No.: .50-482 Facility Operating' License No.t NPF-42 Report No. 73 w -

DI Merlin G. William i

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. '. Attachment to' N0 91-0116

, ,. . . c SIM9RY The following report _highlighto the operating experience of Wolf Creek u

Generating Statim for the nonth of March,1991. This report is being provided pursuant'to Technical' Specification 6.9.1.8.

- I . .- SINMARY OF OPERAT11G EXPERIENCE The unit _ operated continuously througbut the month of Narch 1991. Power remained at 80% throughout the nonth 2or fuel conservation purposes with the -

- exceptim of a drop to approximatel' 60% power MarchL 20 for replacement of the main feedwater pump "B" inboarr. bearing. Power was restored to 80% -

March '2 and it renained at 80% for the duration of the mnth. -

II.< MAJOR batT. Y REIATED MAINfENANCE JCPIVITIES

- 1. Repair' of speed sensing circuitry on =mpicy diesel generator-KKJ01A.-

. 2. Ongoing repair of fuel pool cooling punp recun cooler SGG04A. -

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, 3;; Replacanent of conpressor heads on Class IE electrical equipnent air corditioning unit SGK05A in support of PMR 2061.

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Wolf Creek Generating Station Monthly Operating Report March 1991- ..

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..,, .' Attachment to N0 91-0116

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OPERATING DATA REPCRT ,

DOCKET NO. 50-482 NOLF CREEK GENERATING STATIW WOLF CREEK NLCLEAR OPERATIN3 00RPNATION DATE 04-01-91 OCMPLETED BY M. Williams TELEPfG E 316-364-8831 OPERATIN3 STA2VS

1. Reporting Period: March, 1991 . Gross Hours in Reporting Period 744

2. Currently Authorized Power Isvel(NWt) _1411 Max. Depend. Capacity (MWe-Net):.1135

. Design Electrical Rating (MWe-Net): 1170 3.- Power Iovel to Which Restricted (If Any)(NWe-Net): N/A f4.- Reasons for restriction (If Any): N/A

'Ihis Month Yr. to Date Cunulative

5. Number of Hours Reactor was Critical 744.0 2,160.0 39,555.5

. 6. - ' Reactor Reserve Shutdown Iburs 0.0 0.0 339.8

7. - Iburs Generator on Idne 744.0 2,160.0 -38,983.8

8. Unit Reserve Shutdown Hours 0.0 0.0 0.0

-9. Gross 'Ihermal Energy Generated (MWH) 1,969,185 6,172,974 128,237,999

- 10. Gross Electrical- Energy Generated (NWH) 681,512 2,155,915 44,670,684

11. Net Electrica) Energy Generated (NEI) 647,383 2,055,402 42,652,260 "12. Reactor Service Factor 100.0 100.0 81.0

-- 13. Reactor ' Availability. Factor 100. 0____ 100.0 81.6

14. Unit Service Factor 100.0 100.0 79.8

15. Unit Availability Factor '

100.0 100.0 79.8_

16.= Unit Capacity Factor (Using MDC) 76.7 83.8 77'2 17._ Unit Capacity Factor (Using Design NWe) 74.4 81.3 74.6 L18. . Unit Forced Outage Rate 0.0 0.0 3.9

'19. Shutdowns Scheduled Over Next 6 Months (Type, Date, and Duration of each): Refueling Outage on Septaber 12, 1991 for 75 days.

20. If Shut Down at End of Report Period, Estimated Date of Sta'ctup: N/A Wolf Creek Generating Station Monthly Operating Report March 1991 Page 2 of 5

. Attachment to NO 91-0116 4

AVERIGE iAILY UNIT POWER LEVEL Lh.Ktw NO. 50-482 NOLF CREEK GENERATI1G STATION NOLF CREEK Nt. CLEAR OPERATIN3 CORPWATIW DATE 04-01-91 CmPIETED BY M. Willians TELEP10E 316-364-8831

!Omi m rch, 1991 DAY AVERIGE DAILY POWER LEVEL DAY AVERIGE RMLY P0frR LEVEL (MWe-Net) (MWe-Net) 1 880 17 882 2 881 18 883 3 880 19 ___

383 4 884 20 775 5 884 21 _,._

678 6 884 22 834 7 884 23 880 8_ 883 24 880 9 884 25 880 10 884 26 880 11 884 27 880 12 883 28 880 13 881 29 880 14 881- 30 880 15 882 31 880 16 882 Wolf Creek Generating Station Monthly Operating Report March 1991 l Page 3 of 5

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Attachment ~to NO-91-D116 _

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a UNIT SHUTDOWN'AND POWER' REDUCTIONS' " . * .

i ' DOCKET NO.. 50-482' l .

WOLF CREEK'CENERATING STATION:

WOLF CREEK NUCLEAR OPERATING' CORPORATION.L DATE 04.0I-91' COMPLETED BY M. Williamsc REPORT MONTH  : March. 1991 . TELEPHONE 316-364-8831c TYPE ~ METHODS SHUTTING F: FORCED DURATION REASON -DOWN THE REACTOR. CORRECTIVE ACTIONS /CO)MEfr"S No Date S: SCHEDULED (HOURS) (1) OR REDUCING POWER (2) l SIEMARY: The unit operated throughout the month of March.with no power reductions that resulted in a greater than 202 j reduction in: average daily power level as compared to'the previous 24 hour2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br />se i 1) REASON: A: EQUIPMENT FAILURE'(EXPLAIN) .'E: . OPERATOR' TRAINING AND LICENSE EXAMINATION (2) METHOD: 1. MANUAL B: MAINTENANCE OR TEST' F: ADMINISTRATIVE , 2. MANUAL SCRAM C: REFUELING .

-G: , OPERATIONAL ERROR (EXPLAIN) 3.- AUTOMATIC SCRAT.

D: REGULATORY RESTRICTION- H: .' OTHER (EXPLt.IN) 4. CONTINUED S2 REDUCED LOAD.

9. OTHER Weilf Creek Generating Station Mcnthly Operating Report March 1991 ~

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,. .. Attachment to NO 91-0116 WOLF CREIX NUCLEAR OPERATIIG CORIGATICN WOLF CREEK GENERATIN3 STATICN UNIT 10.1 I n flu March, 1991 SUtEARY OF OPERAT11G EXPERIDCE Listed below in chronological sequence is a summary of operating experiences for this nanth which required load reduction or resulted in significant non-load related incidents.

DATE TIME EVENP March 1, 1991 0000 hours0 days <br />0 hours <br />0 weeks <br />0 months <br /> Unit at 80% power.

March 20, 1991 1012 hours0.0117 days <br />0.281 hours <br />0.00167 weeks <br />3.85066e-4 months <br /> Turbine building vatch observes abnormally low oil flow on nain feedwater pump PAE01B inboard bearing.

1236 hours0.0143 days <br />0.343 hours <br />0.00204 weeks <br />4.70298e-4 months <br /> Ccmmnced power decrease to reTove PAE01B frun service to inepect inboard bearing.

1440 hours0.0167 days <br />0.4 hours <br />0.00238 weeks <br />5.4792e-4 months <br /> Unit at 62% pce r.

1930 hours0.0223 days <br />0.536 hours <br />0.00319 weeks <br />7.34365e-4 months <br /> Unit stabilized at 60% power.

March 21, 1991 0620 hours0.00718 days <br />0.172 hours <br />0.00103 weeks <br />2.3591e-4 months <br /> Canmenced power increase to 65% at the request of Systen Operations.

0721 hours0.00834 days <br />0.2 hours <br />0.00119 weeks <br />2.743405e-4 months <br /> Unit at 65% power.

March 22, 1991 Oc30 hours PAE01B repairs complete, ccmnenced power increase to 80%.

0845 hours0.00978 days <br />0.235 hours <br />0.0014 weeks <br />3.215225e-4 months <br /> Unit at 80% power.

March 31, 1991 2400 hours0.0278 days <br />0.667 hours <br />0.00397 weeks <br />9.132e-4 months <br /> Unit at 80% power.

Wolf r, reek Generating Station Monthly Operating Report March 1991 Page 5 of 5

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