ML20151N306

Monthly Operating Rept for Nov 1985

ML20151N306
Person / Time
Site:	Wolf Creek
Issue date:	11/30/1985
From:	Koester G, Mike Williams KANSAS GAS & ELECTRIC CO.
To:	Johnson E NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION IV), NRC OFFICE OF RESOURCE MANAGEMENT (ORM)
References
KMLNRC-85-272, NUDOCS 8601020841
Download: ML20151N306 (10)

Text

z-WLF CREEK GENERATING STATION MON 1HLY OPERATING RE10RP MON 1H:

November YEAR: 1985 Docket No.: SIN 50-482 Facility Operatiry License No.: NPF-42 Report No.

9 Sutmitted by:-

Kansas Gas and Electric Company-8601020841 851130

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me following report highlights the operating experience of Wolf Creek Generating Station for the month of Novenber,1985. %is report is being provided pursuant to Technical Specification 6.9.1.8.

I.

SUlHARY OF OPERATING EXPERIENCE Dur,ing the entire nonth-of November,' the unit operated in tede 1, Power Operation, brirging Wolf Creek's record continuous days on line to 50 days. Several load reductions were necessary to perform maintenance aM to troubleshoot Over-Temperature and Over-Power delta Temperature spikes.

II.

MAJOR SAFErY REIATED MAINTENANCE ACTIVITIES We major safety related maintenance activities for the month of November included the replacement of a Reactor Coolant System flow transmitter, BB-PF-434; restoration of the Diesel Fire Punp to service and renoval of the temporary fire punps; and rework of containment mini-purge systen valves on the supply and exhausYguct to resolve leakage problens.

III. CHANGES, TESTS, AND EXPERIMENTS

%e following is a brief description of safety evaluations performed pursuant to 10 CFR 50.59 on changes, tests, and experiments durirg the nonth of November.

1.

Safety Evaluation 85-SE-106 - During plant normal operations, the containment internal pressure is maintained within Technical Specification limits by the Containnent Mini Purge System. With the Containment Mini Purge Exhaust subsystem out of service for maintenance and/or testing, an alternate method for venting the containment is needed. A procedure, SYS GS-200, " Containment Pressure Reduction using the Hydrogen Purge Subsystem", for venting the containment through a 4" pipe in the Containnent Hydrogen Control System into the Auxiliary Building Heating, Ventilating, and Air Conditioning System was created for this purpose. Were are no unreviewed safety or environmental questions generated as a result of this alternate method for containnent venting.

2.

Temporary Modification 85-SE '.07 - Due to increased usage of service air aM frequency of repair of the service air conpressors, a tenporary conpressor was a3ded to the systen through valve KA-V104. Wis temporary change generates no unreviewed safety or environmental questions.

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Page 1 of 8

3.

T mporary Modification 85-SE-108 - During maintenance on a Mini Purge Exhaust valve GT-HZ12, a seismic hanger on the ductwork outside the containment was pinned to establish a safe and structurally souM support to the ductwork, thus minimizing the potential for. damage during repair activities. 'Ihis removed the seismic qualification of the hanger and duct which results in a -

breach of containment outside boundary. However, the repair activity on the valve itself was also a breach of the contairment outside bouMary. W e inside boundary was blocked and maintained. Technical Specification 3.6.1.7 Action Statement c, which allows continued operation for 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> in this configuation, was in effect. The pin was removed aM seismic qualification of the duct work was restored prior to returning the Mini Purge Exhaust System to operable status. No unreviewed safety or environmental questions were generated as a result of this temporary change.

4.

Proposed revision to Technical Specification 3.6.1.6, " Containment Vessel Structural Integrity" - The proposed revision would alter the surveillance requirements for verifying the operability of the tendon sheathing filler grease aM allow the classification of certain situations as possible abnormal degrMation and allow an engineering evaluation to be performed which may denonstrate continued containnent structural integrity.

It was determined that the proposed Technical Specification change, should it be implemented, will not impact teMon integrity since tendon integrity will be assured by surveillance of rmainire parameters and restoration of parameters or assurance by engineering evaluation; will not affect the method aM manner of plant operation; and will not affeet components and equipment important to safe operation. %erefore, the proposed anendment does not create the possibility of a new and different accident from any previously evaluated.

5.

Plant bbdification Request (PMR) 01195, Revision 5 - This Plant Modification Request was originated to route concentrated sulfuric acid piping directly to the High 'Ibtal Dissolved Solids Collector Tanks (THEOlA&B) through Alloy 20 pipiry and cmponents to mitigate extensive Secondary Waste System corrosion damage to 316L S.S. piping and cmponents. 'Ihe safety evaluation on Revision 4 of this PMR was reported in October, 1985. Revision 5 corrects the valve wiring aM schematic diagrams for the piping changes described in the previous revision. No unreviewed safety or environmental questions were generated as a result of this change.

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C 6.

Plant mdification Request 01333, Revision 2 - Wis Plant Modification Request was originated' to a3d vent valves, alter vent piping, and remove drain line check valves in the Decontamination System to facilitate total drain down of the dip tanks (SHDolA,B and SHD02A,B) and the turbulator (SHD03). %e Safety Evaluation on Revision 1 was reported in October, 1985. Revision 2 estab'ishes correct material compatibility for changes requested and. described in previous revisions. No unreviewed safety or environmental questions were generated as a result of this change.

7.

Plant Modification Request 01186, Revision 1 - In order to improve the charging procedure efficiency of the Main Stean Isolation Valves aM Feed Water Isolation Valves Nitrogen Precharge System, a nitrogen bottle rack with manifold, piping, valving aM local pressure indication was added. %e revision documented the PSAR change request. No unreviewed safety or environnental questions are generated as a result of this modification.

8.

Plant Modification Request 01187, Revision 2 - Wis modification was originated to add isolation valves AE-V361 and AE-V362 for the purpose of isolating thermal relief valves AE-V978 and AE-V979 fran feedwater high pressure heaters EAE03A and EAE03B. We revision clarified retestirs requirements arx3 docunented an FSAR charge request. mis modification is made to facilitate maintenance activities consistent with personnel safety practices without taking both feedwater high pressure heater trains out of service simultaneously. No unreviewed safety or environmental questions are generated as a result of this modification.

9.

Plant Modification Request 01407 - W is modification was originated to install quick disconnect fittirys to the end of the personnel access hatch door seal test connections in lieu of pipe caps. With frequent surveillance testing of the door seal, this modification reduces the possibility of damage to the test connections. No unreviewed safety or environmental questions are generated as a result of this modification.

10. Plant Modification Request 01408 - This modification was originated to correct the Piping and Instrunentation Diagran of the Feedwater System to reflect the correct location of the readout of a pressure indicator in the Control Ibom. No unreviewed safety or environmental questions are generated as a result of this modification.

11. Plant mdification Request 01310 - his modification aids an emergency light inside the Containment Personnel Access Hatch. No unreviewed safety or environmental questions are generated as a result of this change.

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12. Plant Modification Request 01389 - This modification established a leakage retest and visual examination of ductwork and components in the Containment Mini Purge System which may have been

overpressurized while initiating contairnent mini purge with an

, allowable high containment pressure (35" H 0). This modification 9

generates no unreviewed safety or environmGntal questions.

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OPERATING DATA REIORT DOCKET NO.

STN 50-482 WOLF CREEK GENERATING STATION KANSAS GAS AND ELECTRIC COMPANY DATE 12-01-85 COMPIEEED BY M. Williams TELEPHONE 316-364-8831 OPERATING STATUS 1.

Reporting Period:

November, 1985 Gross Hours in Reprting Period: 720.0 2.

Currently Authorized Power Level (MWt): 3411 Max. Depend. Capacity (MWe-Net) : 1128 Design Electrical Rating (MWe-Net):

1170 3.

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

N/A 4.

Reasons for restriction (If Any): _

N/A W is Month Yr to Date Cunulative 5.

Number of Hours Reactor was Critical 720.0 2046.3 2046.3 6.

Reactor Reserve Shutdown Hours 0.0 78.7 78.7 7.

Hours Generator on Line 720.0 2027.6 2027.6 8.

Unit Feserve Shutdown Hours 0.0 0.0*

0.0*

9.

Gross Wermal Energy Generated (MWH) 2,366,472 6 506,267 6,506,267 2

10. Gross Electrical Energy Generated (ffAH) 826,059 2,242,948 2,242,948

11. Net Electrical Energy Generated (MWH) 792,943 2,147,185__

2,147,185

12. Reactor Service Factor 100.0 95.8 95.8

13. Reactor Availability Factor 100.0 99._5 99.5

14. - Unit Service Factor 100.0 94.9 94.9

15. Unit Availability Factor 100.0 94.9 94.9

16. Unit Capacity Factor (Using MDC) 97.6 89.1 89.1

17. Unit Capacity Facton (Usirs Design MWe) 94.1 85.9 85.9 0.0 5.0 5.0

18. Unit Forced Outage Rate

19. Shutdowns Scheduled Over Next 6 Months (Type, Date, ard Duration of each):, N/A

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

N/A

21. Units in test Status (Prior to Comnercial Operation): Forecast Achieved Initial Criticality 5-22-85 5-22-85 Initial Electricity 6-13-85 6-12-85 9-09-85 9-03-85 Commercial Operation

• Correction to previously reported data Page 5 of 1

AVERME DAILY UNIT POWER LEVEL DOCKET NO.

STN 50-482 WOLF CREEK GENERATING STATION KANSAS GAS AND ELECTRIC COMPANY DATE 12-01-85 COMPIRFED BY M. Willians TELEPHONE 316-364-8831 M0tml November, 1985 DAY AVERAGE DAILY IO4ER LEVEL DAY AVERAGE DAILY POWER LEVEL (MWe-Net)

(MWe-Net) 1 1121 17 1097 2

1125 18 1136 3

1126 19 1140 4

1121 20 1137 5.

1124 21 1101 6

1131 22 1102 7

1132 23 1140 8

1128 24 1132 9

624 25 1078 10 991 26 1131 11 1060 27 1132 12 1123 28 1142 13 1135 29 1145 14 1125 30 1145 15 1124 31 N/A

-16 1044 Page 6 of @

4 UNIT SHlT1YXXN AND IOWER REDUCTIONS DOCKET NO.

STN 50-482 WOLF CPEEK GENERATING STATION E M CAS A!O ELECTRIC COMPANY DATE 12-01-85 REIORP MONTH November, 1985 OJMPLETED BY M. Williauns:

TELEPHONE 316-364-8831 TYPE METHODS SHUrnNG F: FORCED DURATION REASON DOWN THE REACIOR CORRECTIVE ACTIONS /OOPMENTS No Date S: SCHEDULED (HOURS)

(1)

OR REDUCING POWER (2) 22 851109 S

0.0 B

1 Reduced unit load for maintenance on Main Fedwater Pung "A",

and replacement of Reactor Coolant Systen flow transmitter. Also inspected Circulating Water Systen screens arx3 bay level instrunentation.

StBMARY: During the month of Novenber, the Unit remained in Mode 1, Ibwer Operation, brirging Wolf Creek's record continuous days on line to 50.

'Ihe only significant power reduction occurred on November 9 for scheduled maintenance.

(1)

REASON: A: EQUIPMEt7f FAILURE (EXPIAIN)

E: OPERA'10R TRAINIbG AND LICENSE EXAMINATION (2)

ME'IBOD:

1.

MANUAL B: MAINTENANCE OR TEST F: ADMINISTRATIVE C: REFUELING G: OPERATIONAL ERROR (EXPIAIN) 2.

MANUAL SCRAM 3.

ALTI0MATIC SCRAM D: REGUIATORY RESTRICTION H: OTHER (EXPIAIN) 4.

OTHER (EXPLAIN)

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e.

KANSAS GAS AND ELECTRIC COMPANY WOLF CREEK GENERATING STATION UNIT NO. 1 MON 1H November, 1985 SUtflARY OF OPERATING EXPERIENCE Listed below in chronological sequence is a stmnary of operating experiences for this month which required load reduction or resulted in significant non-load related incidents.

EVENT DATE TIME Unit in Rxle 1, Power Operation, at 100 percent

-November 1, 1985 0000 Reactor power.

cmmenced power reduction to approximately 45 Novem

• 0, 1985 0445 percent to allow maintenance on a Main Feedwater Pump and to replace a Reactor Coolant Systen flow transmitter.

Nwember 11, 1985 1645 Ccmnenced power increase to 100 percent power.

Conmenced power reduction to approximately,1 November 14, 1985 2050 percent to investigate Over-Power and Over-Temperature Delta Temperature (OP/01 tit) spikes.

Comnenced power increase to approximately 100 November 15, 1985 0530 percent power.

Ioad rejection of approximately 40 MWe occurred.

Novenber 20, 1985 2100 Unit stabilized at 96% power to investigate cause.

Cause of load rejection determined to be OP/0DdT November 21, 1985 0153 spikes. Ccmnenced power increase to 100 percent power.

Cczumenced power reduction to approximately 96 0433 percent to further investigate OP/0Itit spikes.

Novenber 22, 1985 2130 Unit returned to 100 percent power.

Comnenced power reduction to approximately 80 November 24, 1985 2246 percent to repair Heater Drain Pump "A".

ccmnenced power increase to approximately 99 November 25, 1985 0500 percent power.

Received Control Rocan Ventilation Isolation Sig November 26, 1985 2117 due to a broken filter paper tape on a Control Room chlorine monitor. Reportable per 10CFR 50.7 and 50.73.

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KANSAS GAS AND ELECTRIC COMPANY THE ELECTsmC COMPANY SLENN L.

NOESTER vats Passiosef huctsaa ff{p5 (S)7~

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Decenber 13, 1985

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DEC 2 0 im e[o ldL Director, Office of Resource Management

,f U.S. niclear Regulatory Conmission Washington, D.C.

20555 Mr. E.H. Johnson, Acting Director Division of Reactor Safety and Projects U.S. Riclear Regulatory Conmission Region IV 611 Ryan Plaza Drive, Suite 1000 Arlington, Texas 76011-KML?mC 85-272 Re:

Docket No. SIN 50-482 Subj: Novenber, 1985 Monthly Operating Report Gentlemen:

Enclosed is the Novenber, 1985 Monthly Operating Report for Wolf Creek Generating Station.

This submittal is being made in accordance with the requirement.s of Technical Specification 6.9.1.8.

Yours very truly, Glenn L. Koester Vice President, NLiclear GIK:see Enclosure cc: PO'Connor (2), w/e Jfaylor (12), w/a nmmins,w/a

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201 N. Market - Wictuta, Kansas - Mail Address: RO. Box 208 I W1chita, Kansas 67201 - Telephone: Area Code (316) 261-6451