ML20033F368

Monthly Operating Rept for Feb 1990 for Wolf Creek Generating Station

ML20033F368
Person / Time
Site:	Wolf Creek
Issue date:	02/28/1990
From:	Bailey J, Mike Williams WOLF CREEK NUCLEAR OPERATING CORP.
To:	NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
References
NO-90-0077, NO-90-77, NUDOCS 9003200194
Download: ML20033F368 (7)

Text

4 W$LF CREEK NUCLEAR OPERATING CORPORATION NO March 15, 1990 to 90-0077 U. S. Nuclear Regulatory Conmission ATIN: Document Control Desk Mail Station P1-137 Washington, D. C.

20555

Subject:

Docket No. 50-482: February, 1990 Monthly Operating Report Gentleman:

Attached is the February, 1990, Mcmthly Operating Report for Wolf Creek Generating Station.

'Ihis submittal is being made in accordance with the requirenents of 'Ibchnical Specification 6.9.1.8.

Very truly yours, M

John A. Bailey Vice President 4

Nuclear Operations

. JAB /aem Attachment cc: R. D. Martin (NRC), w/a D. Persinko (NRC), w/a D. V. Pickett (NRC), w/a M. E. Skow (NRC), w/a oco32OO1on 900228

~ s FDR ADOCK 050004Si

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R F D C-p i

P.O. Box 411/ BurtenWon, KS 66839 I Phone;(316) 364 8831

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An Eque! Opportursty Employer Mf 4CVET

s WOLF QU!EK NUCU!AR OPERATING CmPORATIm NOLF GEEK GIINI!RATDG STkTIm ENIHLY OPERATDC REPmT K NIH:

Petourv YEAR:

1990 Docket No.: 50-482 Facility Operating License No.: NPF-42 Report No.

60 Prepared by:

Nerlin G. Williams

I ttachment-to NO 90-0077 l

SD99RY i

The following report highlights the operating experience of Wolf Creek Generating Station for the month of February,1990. This report is being provided pursuant to %chnical Specification 6.9.1.8.

I.

SGMARY OP OPERATI!G EKPERIDCE The unit operated near 100 percent power until 0907 hours0.0105 days <br />0.252 hours <br />0.0015 weeks <br />3.451135e-4 months <br /> on February 06, 1990, when a reactor trip occurred due to a trip of Reactor Coolant Ptmp (RCP) "A".

A spurious trip of a phase differential overcurrent relay on the RCP power supply lead to the RCP tzip.

The unit entered Mode 2 - Startup at 1634 hours0.0189 days <br />0.454 hours <br />0.0027 weeks <br />6.21737e-4 months <br /> on February 07, 1990, and Mode 1 - Power Operation at 2123 hours0.0246 days <br />0.59 hours <br />0.00351 weeks <br />8.078015e-4 months <br /> on February 07, 1990. Ascension to 100 percent power was delayed due to a failure of a servo valve on the turbine ambined interospt valve. The unit reached 100 percent power at

(

0552 hours0.00639 days <br />0.153 hours <br />9.126984e-4 weeks <br />2.10036e-4 months <br /> on February 09, 1990.

At 0255 hours0.00295 days <br />0.0708 hours <br />4.21627e-4 weeks <br />9.70275e-5 months <br /> on February 10, 1990, unit power was reduced to approximately 95 percent due to a tube leak on the number "2B" low-pressure feedwater heater. She "B" low-pressure feedwater heater string was isolated which restricted unit power to approximately 95 percent for the reainder of the nonth. The feedwater heater will be repaired during the up-cming refueling outage.

II. MAXR SAPTIY REIATED MAINI'ENANCE JCTIVITIES l

No unjor safety related maintenance activities were perfomed during the I

nonth of February.

l l

Wolf Creek Generating Station Monthly Operating Report February 1990 Page 1 of 5

,Attachm:nt to NO 90-0077 OPERATIlG DMA REPGE DOCKET 10. 50-482 WLF GEEK GENERATIlG STATIN WOLF CREEK NUC2AR OPERATIlG 00RPNATION DME 03-01-90 ONP2TED BY M. WilH==

TEMPIENE316-364-8831 OPERATIlG SDLTUS 1.

Reporting Periods W mvv. 1990 Gross Hours in Reporting Period: 672 2.

Currently Authorized Power Imvel()Mt):_.1(M Max. Depend. Capacity (M e-Net) _.lMS Design Electrical Rating ()Me-Net):

1170 3.

Power Isvel to Which Restricted (If Any)(We-Net):

N/A 4.

Reasons for restriction (If Any):

N/A This Month Yr to Date O_=l ative 5.

Number of Hours Reactor was Critical 640.6 1384.6 31,684.0 6.

Reactor Reserve Shutdown Hours 0.0 0.0 339.8 7.

Hours Generator on Line 618.2 1362.2 31,149.3 8.

Unit Reserve Shutdown Hours 0.0 0.0 0.0 9.

Gross 'Jhemal Energy Generated (M) 2,017.613_

4,552,385 103.029,640

10. Gross Electrical Energy Generated (MW) 697,791 1,589,975 35,868,922

11. Het Electrical Energy Generated (M W) 668,550 1,528,876 34,251,247

12. Reactor Service Factor 95.3 97.8 80.5

13. Reactor Availability Factor 95.3 97.8 81.4

14. Unit Service Factor 92.0 96.2 79.1

15. Unit Availability Factor 92.0 96.2 79.1

16. Unit Capacity Factor (Using MDC) 87.7 95.1 77.0

17. Unit Capacity Factor (Using Design MHe) 85.0 92.3 74.4

18. Unit Forced Outage Rate 8.0 3.8 4.6

19. Shutdowns Scheduled Over Next 6 Months (Type, Date, and Duration of each):

Refueling Outage on March 08, 1990, for 65 days.

20. If Shut Down at End of Report Period, Estimated Date of Startup:

N/A Wolf Creek Generating Station Monthly Operating Report February 1990 Page 2 of 5

i

,kttachmenttoNO 9000077 4

I AVIEAGE DAILY WIT POGlR LIM!L DONET 10.

50-482 NOLF CREEK Gl!NI! RATING STATIW WOLF CREEK NUCLFAR OPERATIlG ONPWATIW I

DA'IE 03-01-90 OMPLETl!lD BY M. Williams Tl!12!HDIE316-364-8831 1

10ml Pabo = w, 1990 DAY AVERAGE DAILY PWI!lR LEVEL DAY AVI! RAGE DAILY POWER IJM!L (We-Net)

(We-Net) i 1

1155 17 1077 i

)

2 1154 18 1080 3

1157 19 1080 1

4 1157 20 1080

]

5 1156 21 1078 6

418 22 1078 7

0 23 1078 8

101 24 1076 9

1122' 25 1077 10 1085 26 1078 11 1080-27 1075 12 1081 28 1073 e

13 1078 29 N/A i

l 14 1078 30 N/A 15 1074 31 N/A 16 1075 l

I l

l Wolf Creek Generating Station Monthly Operating Report February 1990 Page 3 of 5

'd

~

UNIT SHUTDOWN AND POWER REDUCTIONS DOCKET 50. _50-482 WOLF CREEK GENERATING STATION g

WOLF CREEK NUCLEAR OPERATING CORPORATION o

DATE 03-0:-90 5.

COMPLETED BT M. Wi;.liams

?,

REPORT MONTH February. 1990 TELEPHONE 316-364-6831 TYPE METHODS SHUTTING

r O

F: FORCED DJRATION REASON DOWN THE REACTOR CORRECTIVE ACTIONS /COf9ENTS No Date S: SCHEDULED < (HOURS)

(1)

OR REDUCING POWER (2) 1 900206 F

53.8 A

3 Trip of Reactor Coolant Pump 'A' due to a phase differ-8 l

ential overcurrent relay trip.

y l

l l

SWEEARY: The unit operated near 100Z power until February 06, 1990, when reactor trip occurred. Unit returned to 100Z power on February 09, 1990. A low-pressure feedwater heater tube leak forced a power reduction to approximately 95Z on February 10, 1990. The unit operated at approximately 95Z for the remainder of the amonth.

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 (EKPIAIN) 3.

AUTOMATIC SCRAM D: REGULATORY RESTRICTION R: OTHER (EXPLAIN) 4.

COhTINUED 5.

REDUCED LOAD 9.

OTHER Wolf Creek Generating Station Monthly Operating Report February 1990 Page 4 of 5

.~.. -. -. - - -

• ' ' ' Attachment to NO 90-0077 WOLF CREEK NUC2AR OPERATDG CXRPCRATICN WOLP CREEK GENERATIIG STATICH INIT N:). 1 lomi Fdruary. 1990_

SulWhRY OP OPERATDG EXPERIEICE Listed below in chronological sequence is a sumary of operating experimoes for this nonth which required load reduction or resulted in significant non-load related incidents.

DB3 ZDE EVElfr February 01, 1990 0000 hours0 days <br />0 hours <br />0 weeks <br />0 months <br /> Unit at 100% power.

Pabruary 06, 1990 0907 hours0.0105 days <br />0.252 hours <br />0.0015 weeks <br />3.451135e-4 months <br /> Reactor Trip - Trip of Reactor Coolant Ptmp "A" due to phase differential overcurrent relay trip.

February 07, 1990 1634 hours0.0189 days <br />0.454 hours <br />0.0027 weeks <br />6.21737e-4 months <br /> Entered )t:de 2 - Startup.

1709 hours0.0198 days <br />0.475 hours <br />0.00283 weeks <br />6.502745e-4 months <br /> Reactor critical.

2123 hours0.0246 days <br />0.59 hours <br />0.00351 weeks <br />8.078015e-4 months <br /> Entered Mode 1 - Power Operation.

February 08, 1990 1454 hours0.0168 days <br />0.404 hours <br />0.0024 weeks <br />5.53247e-4 months <br /> Unit synchronized to grid.

February 09, 1990 0552 hours0.00639 days <br />0.153 hours <br />9.126984e-4 weeks <br />2.10036e-4 months <br /> Unit at 100% power.

l February 10, 1990 0255 hours0.00295 days <br />0.0708 hours <br />4.21627e-4 weeks <br />9.70275e-5 months <br /> Unit at approximately 95% power due to low-pressure l

feedwater heater tube leak.

1%bruary 28, 1990 2400 hours0.0278 days <br />0.667 hours <br />0.00397 weeks <br />9.132e-4 months <br /> Unit at approxinately 95% power.

t Wolf Creek Generating Station Manthly Operating Report February 1990 Page 5 of 5

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