ML20214E039

Monthly Operating Rept for Apr 1987

ML20214E039
Person / Time
Site:	Wolf Creek
Issue date:	04/30/1987
From:	Mike Williams, Withers B WOLF CREEK NUCLEAR OPERATING CORP.
To:	NRC OFFICE OF ADMINISTRATION & RESOURCES MANAGEMENT (ARM)
References
WM-87-0142, WM-87-142, NUDOCS 8705210609
Download: ML20214E039 (8)

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WOLF CREEK NUCLEAR OPERATING OORPORATION WOLF CREEK GENERATING STATION MONTHLY OPERATING REPORT MON 1H:

April YEAR: 1987-Docket No.: 50-482 Facility Operating License No.: NPF-42 Report No.

26 Prepared by:

Merlin G. Williams 8705210609 870430 PDR ADOCK 05000482 R

PDR n

%e followiry report highlights the operatirg experience of Iblf Creek

. Generating Station for the month of April,1987. his report is beirg provided pursuant to Technical Specification 6.9.1.8.

I.

SUPNARY OF OPERATING EXPERIENCE W e' unit operated near 100 percent _ power throughout most of the month.

Rod Control problens were experienced twice during the' month, on April 19, and 23. Each time boration to Hot Standby was connenced, but reactor trips occurred at 60 and 50 percent power respectively.

II.

MAJOR SAFETY RELATED MAINTENANCE ACfIVITIES 1.

Replaced the lube oil tenperature indicator KJ TI-121 for the "B"

Diesel Generator.

2.

Replaced the power isolation printed circuit board for containnent purge exhaust radiation monitor GP RE-33.

3.

Replaced the regulator for the charging control valve BG HCV-182.

4.

Replaced pressure switch BG PS-0018 for Centrifugal Chargiry Pump "B" auxiliary lube oil punp.

5.

We power operated relief valve for Steam Generator "C" was reworked.

III. CHANGES, TESTS, AND EXPERIMENTS Safety evaluations performed pursuant to 10 CFR 50.59 on changes, tests, and experiments will no longer be reported on a monthly basis.

. An annual report will be subnitted, as required by Technical Specifications.

Wolf Creek Generating Station Monthly Operating Report April 1987 Page 1 of 6

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,c OPERATING DATA REPORP

' s DOCKET NO.

50-482

~ WOLF CREEK GENERATING STATI N WOLF CREEK NUCLEAR OPERATING CORPORATIN DATE 05-01-87'~

COMPIETED BY M. Willians -

TELEPHONE 316-364-8831-OPERATING STNIUS.

~ 1. - Reporting Period:

April,1987 Gross Hours in Reporting Period: 719 12'1 Currently Authorized Power Ievel(Mt): 3411 Max. Depend. -Capacity (Me-Net): 1128

Design. Electrical Rating (We-Net) : - 1170 3.

Power Level to Which Restricted (If Any)(Mwe-Net):

N/A-

- 4.- Reasons for restriction,(If Any) : -

M/A

.1his Month Yr to Date Cunulative

~5.3 Number of' Hours Reactor was Critical 702.6 2771.9 12086.8

~

6. :: Reactor Reserve Shutdown Hours 0.0 64.2 235.5

7. 1 Hours Generator on Line 672.9 2657.8 11847.9 "8.

Unit Reserve Shutdown Hours 0.0<

0.0 0.0'

~

9'.. Gross Thermal: Energy. Generated #(Mel)

-2,247,475 8,444,978 38,190,320 110.- Gross Electrical Energy Generated (IMI)-

786,493' _

2,970,289.13,336,659

.11.. Neti Electrical Energy Generated (MH) 751,562 2,835,142 12,734,431 12.s Reactor Service Factor 97.7 96.3-83.2

13. Reactor Availability Factor 97.7 98.5 84.9

~

l'41 Unit Se'rvice Factor 93.6 92.3 81.6 (15. Unit Availability Factor 93.6 92.3 81.6-l

16. Unit Capacity Factor (Using MDC) 92.7 87.3 77.8

'17.

Unit Capacity Factor (Using Design Me) 89.3 84.2 75.0

18. Unit Forced Outage Rate 6.4 3.3 4.1

[

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

'. Refueling outage, September 17, 1987, 56 Days.

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

N/A Wolf Creek Generating Station Monthly Operating Report April 1987 Page 2 of 6 i

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AVERAGE DAILY INIT POWER LEVEL':

DOCKER N00 50-482 hDLF._ CREEK GENERATING STATION WOLF CREEK NUCLEAR OPERATING 00RPORATICN

.DATE 05-01-87 COMPLETED BY M. Williams TELEPHONE 316-364-8831:'

MNIH April, 1987-DAY AVERAGE DAILY POWER LEVEL DAY AVERAGE DAILY POWER LEVEL

- (M4e-Net)

(N4e-Net) 1-

'1146 17 1145

2'

'1147-18 1145

. 3 :-

1147-.

19 374 1147-20 927

.5_

1147 21 1141 6

1148 22 1144-

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-7:

1149 23 534

'8 1148 24 0

9

-11'46' 25 911

10 1147 26 1142 11-1146 27 1140

_12L 1146 28 1142'

-13:

1146 29 1144 14-1146 30 1143 15 1147 31 N/A 16 1147 Wolf Creek Generating Station Monthly Operating Report April 1987 Page 3 of 6

~*

UNIT SHUTDOWN AND FDWER REDUCTIONS-

' DOCKET NO., 50-482-WOLF CREEK GENERATING STATIM "

WOLF CREEK NUCLEAR OPERATING CORPORATIW -

DA'IE 5-01-87 OJMPLETs BY i4. Willians REPORT MONIH April, 1987 TELEPHONE 316-364-8831 TYPE ME1 HODS SI!UTEIIG F: FORCED DURATION REASCN DOM 4 THE REACIOR' CORRECTIVE ACTIO4S/OJettENTS No Date S: SCHEDULED (HOURS)

(1)

OR REDUCING IOWER(2) 8 870419 F'

13.1' A

3 Repaired rod control system.

9 870423 F

33.0 A

3 Repaired rod control system i

SIMIARY: On two occassions, a failure in the rod control system resulted in a reactor trip. On each occassion, the unit returned to Mode 1, Power Operation, following repairs.

(1)

REASON: A: EQUIPMINT FAIIURE (EXPLAIN)

E: OPERA'IDR TRAINItU AND LICENSE EXAMINATION (2)

METHOD:

1.

MANUAL B: MAINTENANCE OR TEST F: ADMINISTRATIVE 2.

MANUAL SCRAM C: REFUELING G: OPERATIONAL ERROR (EXPLAIN) 3.

AUIOMATIC SCRAM D: REGUIA'IDRY RESTRICTION H: OIHER (EXPLAIN) 4.

OIHER (EXPIAIN) t Wolf Creek Generating Station' 2

Monthly Operatirg Report April 1987' Page,4 of 6-

3.:

WOTS CREEK NUCLEAR OPERATING CORPORATION WOLP CREEK GENERATING STATION UNIT NO. 1 Motf1H April, 1987

SUMMARY

OF OPERATING EXPERIENCE Listed below in chronological sequence is a stmnary of operatirg experiences for this month which required load reduction or resulted in significant non-load related incidents.

DATE TIME EVENT April 1, 1987 0000 Unit in Mode 1, Power Operation.

April 19, 1987

~0251 Ctanenced power reduction to 90 percent to allow repair to a circulatirre water punp.

0436 Received "tecxi Control Urgent Failure" conunciator.

0730 Comnenced !ioration for Shutdown.

0846 Reactor Trip frun about 60 percent power. Entered WA 3 3, Hot Standby.

(LER 87-017-00).

1930L Entered Mode'2, Startup.

1950 Reactor Critical.

2113 Entered Mode 1, Power Operation.

2154 Synchronized with grid.

-April 20,1937 0104 Comnenced power increase fran 30 percent.

0455 Held power at 65 percent.

0622 Comnenced increasirs power.

Wolf Creek Generating Station Monthly Operating Report April 1987 Page 5 of 6 L

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.- April-20,- 1987.

1002 Reached 100 percent power.

April-23,'1987 0740 Received " Rod Control Urgent-Failure" annunciator.

1000 Ccmnenced Boration for Shutdown.

1223 Reactor Trip fran about 50 percent power.. Entered Mode 3,.

Hot Standby (LER 87-017-00).

April 24~ 1987 1714 Entered-Mode 2, Startup.-

1741-Reactor Critical.

2023 Entered Mode 1, Power Operation.

.-2124 Synchronized with grid.

April 25,-1987 0049 Comnenced power increase-fran 30 percent.

-0620 Experienced Stean Generator "A" level problens. Comnenced reducing power _fran 85 percent to 75 percent.

1015 Comnenced increasing power.

1241 Reached 100 percent power.

Wolf Creek Generating Station Monthly Operatirg Report April 1987 Page 6 of 6

LF CREEK W6) NUCLEAR OPERATING Bart D.Whhers Proeident and ca.e Ex.ae omeo' May 14,1987 U. S. Nuclear Regulatory Commission ATTN: Document Control Desk Washington, D. C.

20555 Letter: WM 87-0142 Re:

Docket No. 50-482 Subj:

April, 1987, Monthly Operating Report 1

Gentlemen:

Enclosed is the April, 1987, 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.

Very truly yours,

=d Bart D. Withers President and Chief Executive Officer BDW:Jad-Enclosure cc: P0'Connor (2), w/a RMartin, w/a JCummins, w/a h>

RO. Box 411/ Burhngton, KS 66839 / Phone:(316) 364-8831 l

An Equal opporturvey EW MFHOVET

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