ML20205N931

Monthly Operating Repts for Mar 1999 for Limerick Generating Station,Units 1 & 2.With

ML20205N931
Person / Time
Site:	Limerick
Issue date:	03/31/1999
From:	Grimes J, Klucar J PECO ENERGY CO., (FORMERLY PHILADELPHIA ELECTRIC
To:	NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
References
NUDOCS 9904190245
Download: ML20205N931 (7)

Text

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Lim:Irick Gen:rtting Station 3

v PECO NUCLEAR erco s evc - ov PO Box 2300 A Unit of PECO Energy sanatoga. PA 19464-0920 T.S.6.9.1.6 April 14,1999 Docket Nos. 50-352 50-353 License Nos. NPF-39 NPF-85 U. S. Nuclear Regulatory Commission Attn: Document Control Desk Washington,DC 20555

Subject:

Limerick Generating Station Monthly Operating Report For Units 1 and 2 l

l Enclosed are the monthly operating reports for Limerick Units 1 and 2 for the month of March 1999 forwarded pursuant to Technical Specification 6.9.1.6.

Very truly yours, l

W Josepj P. Grimes Director- Site Engineering /

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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 G. II. Stewart, LGS Experience Assessment Branch, SSB2-4 S. A. Auve, LGS ISEG Branch, SSB4-2 9904190245 990331 ff PDR ADOCK 05000352 ..j R PDR g L

Docket No. 50-352 Attachment to Monthly l

Operating Report for March 1999 Limerick Generating Station Unit 1 March 1 through March 31,1999

1. Narrative Summary of Ooeratina Experiences Unit 1 began the month of March 1999 at 31% of rated thermal power (RTP).

On March 01,1999 power had been reduced to 31% of RTP to lower D/W heat loads with an inoperable DWCW PCIV isolated. Power was restored to 100% of RTP on March 02,1999 at 1400 hours0.0162 days <br />0.389 hours <br />0.00231 weeks <br />5.327e-4 months <br />.

l On March 02,1999 at 2000 hours0.0231 days <br />0.556 hours <br />0.00331 weeks <br />7.61e-4 months <br />, power drifted from 100% while waiting for equilibrium xenon to build in so final rod pattem could be attained. On March 03,1999 at 0042 hours4.861111e-4 days <br />0.0117 hours <br />6.944444e-5 weeks <br />1.5981e-5 months <br />, power was reduced to 78% of RTP to perform rod pattem adjustments. Power l was restored to 100% of RTP at 0630 hours0.00729 days <br />0.175 hours <br />0.00104 weeks <br />2.39715e-4 months <br />.

l On March 05,1999 at 2231, power was reduced to 85% of RTP to perform rod pattem adjustments. Power was restored to 100% of RTP on March 06,1999 at 0042 hours4.861111e-4 days <br />0.0117 hours <br />6.944444e-5 weeks <br />1.5981e-5 months <br />.

Unit 1 ended this month at 100 % RTP.

II. Chal!eno_es to Main Steam Safety Relief Valves There were no challenges to the Main Steam Safety Relief Valves during the month of March. There have been no challenges to the Main Steam Safety Relief Valves year-to-date.

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Docket No. 50-353 Attachment to Monthly Operating Report for March 1999 Limerick Generating Station Unit 2 March 1 through March 31,1999

1. Narrative Summary of Operatino Experiences Unit 2 began the month of March 1999 at 97% rated thermal power (RTP) in end of cycle coast down.

On March 28,1999 at 0200 hours0.00231 days <br />0.0556 hours <br />3.306878e-4 weeks <br />7.61e-5 months <br />, power was reduced to 83% of RTP for main turbine valve exercise testing. Power was restored to 87% of RTP at 0400 hours0.00463 days <br />0.111 hours <br />6.613757e-4 weeks <br />1.522e-4 months <br />.

Unit 2 ended this month at nominal 86% of RTP.

II. Challenaes to Main Steam Safety Relief Valves There were no challenges to the Main Steam Safety Relief Valves during the month of March. There have been no challenges to the Main Steam Safety Relief Valves year-to-date.

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