ML20244E000

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Monthly Operating Rept for May 1989 for Wolf Creek Generating Station
ML20244E000
Person / Time
Site: Wolf Creek Wolf Creek Nuclear Operating Corporation icon.png
Issue date: 05/31/1989
From: Bailey J, Mike Williams
WOLF CREEK NUCLEAR OPERATING CORP.
To:
NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
References
NO-89-0108, NO-89-108, NUDOCS 8906200099
Download: ML20244E000 (7)
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^I i June 13,1989 NO 89-0108 U. S. Nuclear Regulatory Commission- i ATTN: Document Control: Desk 4 Mail Station P1-137 Washington, D. C. 20555 j

Subjects' Docket No. 50-482: May, 1989, Monthly Operating Report i

Gentlemen 1

Attached.is 'the .. May,-.1989, Monthly Operating. Report for Wolf Cred. j Generating Station. . This submittal is being made in accordance with the -j requirements of~ Technical Specification 6.9.1.8. .;

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.Very truly yours, ;j h .

l John A. Bailey k

,- Vice President Nuclear Operations ]

JAB /jad Attachment cca B. L. Bartlett (NRC), w/a E. J. Holler'(NRC), w/a l

R. D. Martin (NRC), w/a D. V. Pickett (NRC), w/a 8906200099 890531 PDR ADOCK 03000482 R PLC P.O. Fs t 411/ Burlington, KS 66839 / Phone:(316) 364-8831 I An Equal Opportunity Ernployer M FHCNET

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httachment to'N0 89-0108 i:

WOLF CREEK NUCEEAR OPERATING CORPORATION NOLF CREEK GENERATING STATION K NIHLY OPERATING REPORT M NIH: May YEAR: 1989 Docket No.: 50-482 Facility Operating License No.: NPF-42 Report No. 51

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Prepared by:

Merlin G. Williams

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. ,' . Attachment to NO 89-0108 1

SUMMARY

I The following report highlights the operating experience of Wolf Creek Generating Station for the month of May, 1989. This w ru.L is being provided pursuant to Technical Specification 6.9.1.8.

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I.

SUMMARY

OF OPERATI!G EXPERIENCE Ch May 07,1989, at 0456 hours0.00528 days <br />0.127 hours <br />7.539683e-4 weeks <br />1.73508e-4 months <br />, Heater Drain Pump notor "A" suffered a phase to ground short resulting in a loss of 30 negawatts electrical.

On May 14, 1989, at 1248 hours0.0144 days <br />0.347 hours <br />0.00206 weeks <br />4.74864e-4 months <br />, power was reduced to 96% for isolation of a condenser e ter box to plug a leaking tube. The Unit was returned to 100% at 1642 hours0.019 days <br />0.456 hours <br />0.00271 weeks <br />6.24781e-4 months <br />.

On May 15,1989, at 2145 hours0.0248 days <br />0.596 hours <br />0.00355 weeks <br />8.161725e-4 months <br />, a Imd rejection of 32 megawatts occurred due to a turbine control circuitry problen and again on May 16,1989, at 1338 hours0.0155 days <br />0.372 hours <br />0.00221 weeks <br />5.09109e-4 months <br />, a load rejection of 20 negawatts occurred.

Control es placed in nanual, stabilized, and load returned to normal.

On May 22, 1989, at 1956 hours0.0226 days <br />0.543 hours <br />0.00323 weeks <br />7.44258e-4 months <br />, Heater Drain Pump "A" was returned to l service. On May 26, 1989, at 2001 hours0.0232 days <br />0.556 hours <br />0.00331 weeks <br />7.613805e-4 months <br />, Heater Drain Pump "A" a s retoved frun service for additional realignment. Heater Drain Pump "A" e s subsequently returned to service on May 28, 1989, at 0015 hours1.736111e-4 days <br />0.00417 hours <br />2.480159e-5 weeks <br />5.7075e-6 months <br />.

On May 27,1989, at 0140 hours0.00162 days <br />0.0389 hours <br />2.314815e-4 weeks <br />5.327e-5 months <br />, load was reduced to 80% per the regaest of Systan Operations. On May 29, 1989, at 1452 hours0.0168 days <br />0.403 hours <br />0.0024 weeks <br />5.52486e-4 months <br />, load was increased to 100% per the request of Systan Operations.

II. MAJCR SidT1Y RE[ATED MAINTENANCE ACI'IVITIES

1. Replaced power supply SG4-68N29 in Engineerd Safeguards Features Actuation System (ESFAS) cabinet SA075B.
2. Replaced mechanical seal on Fuel Pool Skinmer Pump PEC03.
3. Overhauled Pressurizer Backup Heater breaker IG2201.

Wolf Creek Cenerating Station Monthly Operating Report May 1989 Pap l of 5 l

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[ , Attachment to N0 89-0108 OPERATIIG DATA RMuw DOta.T NO. 50-482 NOLF CREEK GENERATI!G STATIM NOLF CREEK NUCLEAR OPERATIIG CORPORATIm DATE 06-01-89 00FLETED BY M. Williams TELEPHONE 316-364-8831 OPERATIIG STA'IUS

1. Reporting Period: May, 1989 Gross Hours in Reporting Period: 744
2. Currently Authorized Power Ievel(MNt): 3411 Max. Depend. Capacity (MNe-Net): 1135 i Design Electrical Rating (MNe-Net): 1170
3. Power Isvel to Which Restricted (If Any)(Mwe-Net): N/A
4. Reasons for restriction (If Any): N/A

'Ihis Month Yr to Date Cumulative

5. Number of Hours Reactor was Critical 744.0 3,578.3 25,162.4
6. Reactar Reserve Shutdown Iburs 0.0 0.0 339.8
7. Hours Generator an Line 744.0 3,483.4 24,650.9
8. Unit Reserve Shutdown Hours 0.0 0.0 0.0
9. Gross Thermal Energy Generated (MWH) 2,498,149 11,696,642 81,268,759
10. Gross Electrical Energy Generated (MWH) 858,914 4,084,180 28,253,385
11. Net Electrical Energy Generated (MWH) 824,541 3,921,745 26,934,851
12. Reactor Service Factor 100.0 98.8 76.7
13. Reactor Availability Factor 100.0 98.8 , 77.7
14. Unit Service Factor 100.0 96.1 75.1
15. Unit Availability Factor 100.0 96.1 75.1 l

~16. Unit Capacity Factor (Using MDC) 97.6 95.4 72.7

17. Unit Capacity Factor (Using Design MWe) 94.7 92.5 70.2
18. Unit Forced Outage Rate 0.0 1.4 5.5
19. Shutdowns Scheduled Over Next 6 Months (Type, Date, and Duration of each): lbne.
20. If Shut Down at End of Report Period, Estimated Date of Startup: N/A Wolf Creek Generating Station Monthly Operating Report May 1989 Page 2 of 5 l

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, Attachment to NO 89-0103 l

AVERAGE DAILY UNIT PONER LEVEL '

DOCKET NO. 50-482 i NOLF CREEK GENERATDG STATICN NOLF CREEK NUCLEAR OPERATING CCRPCRATICE l DATE 06-01-89 (IEPLETED BY M. Willims '

TELEPf0NE316-364-8831 KNIH May, 1989 DAY AVERAGE DAILY POWER ILVEL DAY AVERAGE DAILY POWER LEVEL (NWe-Net) '(MWe-Net) 1 1148 17 1114 -

2 1147 18 ,1115 3 1147- 19 1116 4 1146 20 1115 5 1146 21 1114 6 1145 22 1118 7 1123 23 1138 8- 1115 24 1137 l 9 1115 25 1137

-10 1114 26 1133 11 1114 27 897 12 1115 28 905 13 1115 29 1023 14- 1108 30 1136 15 -1112 31 1135 16 1113 Wolf Cmek Generating Station Monthly Operating Report May 1989 Page 3 of 5

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r! Attachment to to 89-0108 NOLF CREEK NUCLEAR OPERATI!G CORPORA'ITON NOLF CRREK GENERATI!G STATION UNIT 10.1 M'NIH May, 1989

SUMMARY

OF OPERATIIG EKPERIENCE Listed below in chronological sequence is a sumary of operating experiences for this nonth which reanird., load r3 duction or resulted in significant non-load related incidents.

DATE TIME EVENT May 07, 1989 0456 hours0.00528 days <br />0.127 hours <br />7.539683e-4 weeks <br />1.73508e-4 months <br /> Heater Drain Pmp notor "A" developed a phase to ground short resulting in a 30 MN reduction in electrical generation.

May 14, 1989 1248 hours0.0144 days <br />0.347 hours <br />0.00206 weeks <br />4.74864e-4 months <br /> Power reduced to 96% for isolatian of condenser water box to plug leaking tube.

1642 hours0.019 days <br />0.456 hours <br />0.00271 weeks <br />6.24781e-4 months <br /> Unit returned to 100%.

May 15, 1989 2145 hours0.0248 days <br />0.596 hours <br />0.00355 weeks <br />8.161725e-4 months <br /> Ioad rejection of 32 Mi - turbine control circuitry probim.

May 16, 1989 1338 hours0.0155 days <br />0.372 hours <br />0.00221 weeks <br />5.09109e-4 months <br /> Ioad rejection of 20 Mi - turbine control circuitry problem.

May 22, 1989 1956 hours0.0226 days <br />0.543 hours <br />0.00323 weeks <br />7.44258e-4 months <br /> Heater Drain Pump "A" returned to service.

May 26, 1989 2001 hours0.0232 days <br />0.556 hours <br />0.00331 weeks <br />7.613805e-4 months <br /> Heater Drain Pump "A" rutoved frm service for additional realignment.

May 27, 1989 0140 hours0.00162 days <br />0.0389 hours <br />2.314815e-4 weeks <br />5.327e-5 months <br /> Ioad reduced to 80% per request of Ioad Dispatcher.

May 28, 1989 0015 hours1.736111e-4 days <br />0.00417 hours <br />2.480159e-5 weeks <br />5.7075e-6 months <br /> Heater Drain Pump "A" returned to service.

May 29, 1989 1452 hours0.0168 days <br />0.403 hours <br />0.0024 weeks <br />5.52486e-4 months <br /> Ioad increased to 100% per request of Ioad Dispatcher.

Wolf Creek Generating Station Manthly Operating Report May 1989 Page 5 of 5

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