ML20247H507

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Monthly Operating Repts for Apr 1998 for Limerick Generating Station
ML20247H507
Person / Time
Site: Limerick  Constellation icon.png
Issue date: 04/30/1998
From: Grimes J, Hinchey P
PECO ENERGY CO., (FORMERLY PHILADELPHIA ELECTRIC
To:
NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
References
NUDOCS 9805210182
Download: ML20247H507 (7)
v • d • e


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Lirnerick Gsnerating Station

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PECO NUCLEAR erco ree,2v com mer eo Box 2300 Sanatoga. FA 19464-0920 A l)hti of PEC() Errscy T.S.6.9.1.6 May 15,1998 Docket Nos. 50-352 50-353 License Nos. NPF-39 NPF-85 l

U. S. Nuclear Regulatory Commission Attn: Document Control Desk Washington, DC 20555

Subject:

Limerick Generating Station Monthly Operating Report For Units 1 and 2 Enclosed are the monthly operating reports for Limerick Units 1 and 2 for the month of April 1998 forwarded pursuant to Technical Specification 6.9.1.6.

l l Very truly yours,

% /

Jos h P. Grimes Director- Site Engineering /

vta l Enclosures /

cc: H. J. Miller, Administrator, Region I, USNRC [

A. L. Burritt, USNRC Senior Resident Inspector LGS J. D. von Suskil, Vice President, LGS 9905210192 990430 PDR ADOCK 05000352 R PDR i

Docket No. 50-352

. Attachment to Monthly Operating Report for April 1998 Limerick Generating Station Unit 1 April 1 through April 30,1998

1. Narrative Summary of Operatina Experiences Unit 1 began the month of April 1998 at 90% of rated thermal power (RTP).

On April 3,1998 at 0815 hours0.00943 days <br />0.226 hours <br />0.00135 weeks <br />3.101075e-4 months <br />, power was reduced in preparation for the 1R07 refuel outage.

On April 3,1998 at 1741 hours0.0202 days <br />0.484 hours <br />0.00288 weeks <br />6.624505e-4 months <br />, with power reduced to 22% of RTP, the reactor was shut down to begin the refuel outage.

Unit 1 ended this month at 0 % RTP with 1R07 refuel outage in progress.

11. Challenoes to Main Steam Safety Relief Valves There were no challenges to the Main Steam Safety Relief Valves during the month of April.

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Docket No. 50-353 Attachment to Monthly Operating Report for April 1998 Limerick Generating Station Unit 2 April 1 through April 30,1998

1. Narrative Summary of Operatina Experiences Unit 2 began the month of April 1998 at 100% rated thermal power (RTP).

On April 5,1998 at 0340 hours0.00394 days <br />0.0944 hours <br />5.621693e-4 weeks <br />1.2937e-4 months <br />, power was reduced to 98% of RTP for main turbine valve testing. Powerwas restored to 100% of RTP at 0524 hours0.00606 days <br />0.146 hours <br />8.664021e-4 weeks <br />1.99382e-4 months <br />.

On April 11,1998 at 2234 hours0.0259 days <br />0.621 hours <br />0.00369 weeks <br />8.50037e-4 months <br />, power was reduced to 87% of RTP for main turbine control valve testing and main steam isolation valve slow closure testing. Power was

' restored to 100% of RTP on April 12, at 0429 hours0.00497 days <br />0.119 hours <br />7.093254e-4 weeks <br />1.632345e-4 months <br />.

On April 12,1998 at 1515 hours0.0175 days <br />0.421 hours <br />0.0025 weeks <br />5.764575e-4 months <br />, power was reduced to 98% of RTP for main turbine stop valve and combined intermediate valve testing. . Power was restored to 100% of RTP at 1637 hours0.0189 days <br />0.455 hours <br />0.00271 weeks <br />6.228785e-4 months <br />.

On April 18,1998 at 2250 hours0.026 days <br />0.625 hours <br />0.00372 weeks <br />8.56125e-4 months <br />, power was reduced to 98% of RTP for main turbine valve testing. Power was restored to 100% of RTP at 2349 hours0.0272 days <br />0.653 hours <br />0.00388 weeks <br />8.937945e-4 months <br />.

On April 25,1998 at 0900 hours0.0104 days <br />0.25 hours <br />0.00149 weeks <br />3.4245e-4 months <br />, power was reduced to 75% of RTP for main turt>ine valve testing and control rod scram time testing. Power was restored to 100% of RTP at 1744 hours0.0202 days <br />0.484 hours <br />0.00288 weeks <br />6.63592e-4 months <br />.

I Unit 2 ended this operating period at 100% of RTP.

11. Challenoes to Main Steam Safety Relief Valves There were no challenges to the Main Steam Safety Relief Valves during the month of April.

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