ML20247K571

Advises That Voltage Levels Discussed in LER-86-015-1 & LER-87-007 & in Util 880229 & 0902 Ltrs Considered within Design Basis of Plant.Util Should Confirm Values for 480 & 120 Voltages by Testing During Next Refueling Outage

ML20247K571
Person / Time
Site:	Crystal River
Issue date:	09/18/1989
From:	Berkow H Office of Nuclear Reactor Regulation
To:	Wilgus W FLORIDA POWER CORP.
References
TAC-65331, NUDOCS 8909210199
Download: ML20247K571 (3)

Text

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September 18, 1989 Docket No. 50-302 DISTRIBUTION See Attached page Mr. W. S. Wilgus Vice President, Nuclear Operations Florida Power Corporation ATTN: Manager, Nuclear Operations Licensing P. O. Box 219-NA-21 Crystal River, Florida 32629

SUBJECT:

CRYSTAL RIVER UNIT 3 - EMERGENCY DIESEL GENERATOR (EDG) VOLTAGE DIPS DURING BLOCK LOADING (TAC NO. 65331)

We have reviewed the information in LER.86-0151 and LER-87 007, and in your i letters dated February 29, 1988 and Septerber 2,1988 with regard to voltage dips during block loading of the EDGs. This is of course only one of the i outstanding matters related to the EDG and other electrical system problems.

Based on our review, we conclude that voltage levels are within the design I basis of the plant. However, since the voltage levels are close to allowable limits, you should confirm the calculated values for the 480 and 120 voltages by testing at the next refueling outage along with the testing required to  !

qualify the modified EDG and to demonstrate its performance and that of related  ;

modifications. '

This coupletes our efforts on TAC ho. 65331.

i Sincerely, '

Original signed by  ;

Harley Silver FOR l Herbert N. Eerkow, Director ,

Project Directorate 11-2 i Division of Reactor Projects - 1/II Office of Nuclear Reactor Regulation l

CC:

See next page Document Name: LTR WILGUS TAC 65331 h _

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OFFICIAL RECORD COPY 890921019s 8P0918 DR ADOCK 0500 2 ppof

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L. .. 9 Mr. W. S. Wilgus Crystal River Unit No. 3 Nuclear Florida Power Corporation Generating Plant 1

cc: l Mr. ,A. H. Stephens State Planning and Development General Counsel Clearinghouse Florida Power Corporation Office of Planning and Budget MAC - ASD Executive Office of the Governor P. O. Bux 14042 The Capitol Building St. Petersburg, Florida 33733 Tallahassee, Florida 32301 Mr. P. F. McKee, Director Chairman Nuclear Plant Operations Board of County Commissioners Florida Power Corporation Citrus County P. O. Box 219-NA-2C 110 North Apopka Avenue Crystal River, Florica 32629 Inverness, Florida 32650 Mr. Robert B. Borsum tir. I:olf C. Widell, Director Babcock & Wilcox Nuclear Operations Site Support Nuclear Power Generation Division Florida Power Corporation 1700 Rockville Pike, Suite 525 P.O. Box 219-NA-21 Fockville, Maryland 20852 Crystal River, Florids 32629 Senior Resident Inspector Mr. Gery L. Boldt  !

Crystal River Unit 3 Vice President, Nuclear Production j U.S. Nuclear Regulatory Comission Florida Power Corporation 15760 West Powerline Street P. O. Box 219-SA-2C -

Crystol River, Florida 32629 Crystal River, Floric 32629 'I Regional Administrator, Region II ,

U.S. Nuclear Regulatory Comission l 101 Marietta Street N.W., Suite 2900 -

Atlanta, Georgia 30323 Mr. Jacob Daniel Nash l Office of Radiation Control Department of Health and Rehabilitative Services 1317 Winewood Blvo.

Tallahassee, Florida 32399-0700 Administrator l Department of Environmental Regulation Power Plant Siting Section State of Florida 2600 Blair Stone Road Tallahassee, Florida 32301 Attorney General Department of Legal Affairs The Capitol Tallahassee, Florida 32304

DISTRIBUTION 4TiIocket File,7 NRC & Local PDRs PDII-2 Reading.

S. Varga, 14/E/4 G. Lainas, 14/H/3 G. Wunder D. Miller H. Silver OGC (for info. only)

E. Jordan, 3302 MNBB B. Grimes, 9/A/2 ACRS(10)

M. Sinkule, RII cc: Plant Service list DFoi o a l

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