ML20237B937

Monthly Operating Repts for July 1998 for Calvert Cliffs Nuclear Power Plant

ML20237B937
Person / Time
Site:	Calvert Cliffs
Issue date:	07/31/1998
From:	Katz P, Olsen H BALTIMORE GAS & ELECTRIC CO.
To:	NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
References
NUDOCS 9808200106
Download: ML20237B937 (7)

Text

s PETER E. KATz

1. Baltimore Gas and Electric Company

'. Plant General Manager Calvert Cliffs Nuclear Power Plant Calvert Cliffs Nuclear Power Plant 1650 Calvert Cliffs Parkway l

Lusby, Maryland 20657 410 495-4101 August 14,1998 U. S. Nuclear Regulatory Commission Washington, DC 20555 ATTENTION: Document Control Desk

SUBJECT:

Calvert Clifts Nuclear Power Plant Unit Nos.1 & 2; Docket Nos. 50-317 & 50-318 July 1998 Ooerating Data Reports The subject reports are being sent to you as required by Technical Specification 6.6.4.

Should you have any questions, please contact Mr. Bruce B. Mrowca at (410) 495-3989.

Very truly yours, G-PEK/HOO/bjd Attachments cc: R. S. Fleishman, Esquire Resident Inspector, NRC /

J. E. Silberg, Esquire R. I. McLean, DNR A. W. Dromerick, NRC J. II. Walter, PSC S. S. Bajwa, NRC P. Lewis, INPO H. J. Miller, NRC

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OPERATING DATA REPORT-Docket No. 50-317 Calvert Cliffs Unit l' August 14, 1998 Prepared by Herman O. Olsen Telephone (410)495-6734 REPORTING PERIOD JULY 1998 DESIGN ELECTRICAL RATING (NET MWe) 845 MAXIMUM DEPENDABLE CAP'Y (NET MWe) 835 Year- . Cumulative This' month to-Date to Date 1.-NUMBER.OF HOURS REACTOR WAS CRITICAL 744,0 3,562.5- 149,318.6

2. ' HOURS GENERATOR ON LINE 744.0 3,511.1 146,401.0

3. UNIT RESERVE SHUTDOWN HOURS 0.0 0.0. .0.0

4. NET ELECTRICAL ENERGY GENERATED (MWH) - 627,496 2,988,352 118,494,941 I

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DOCKET NO. 50-317 CALVERT CLIFFS - UNIT 1 August 14,1998

SUMMARY

OF OPERATING EXPERIENCE July 1998 l

The unit operated at 100% power for the entire month.

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Docket No. 50-318 Calvert Cliffs Unit 2 August 14, 1998

. Prepared by Herman O. Olsen

. Telephone : (410) 495-6734 J

REPORTING PERIOD JULY 1998 DESIGN ELECTRICAL. RATING (NET MWe) 845

' MAXIMUM DEPENDABLE CAP'Y (NET MWe) , 840 Year- Cumulative This month to-Date to Date

1. NUMBER OF HOURS REACTOR %AS CRITICAL 546.4 4,889.4 141,879.9' 2.. HOURS . GENERATOR ON LINE ' 546.4 4,889.4 140,125.5

< 3. UNIT RESERVE SHUTDOWN HOURS .0.0 0.0 0.0 4.. NET ELECTRICAL ENERGY GENERATED (MWH) 464,153 4,245,815 '114,200,925 Lv ,

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DOCKET NO. 50-318 CALVERT CLIFFS - UNIT 2 August 14,1998

SUMMARY

OF OPERATING EXPERIENCE -

July 1998 4

The unit began the month at 100% power.-

On 07/23/98 at 1815 a steam leak was identified on the 27' level of the Turbine building, between 21 and 23 Moisture Separator Reheaters. .When the determination was made that the leak could not be isolated, the reactor was manually tripped, removed from the grid and entered mode 3 (hot standby) at 1820. .

' On 07/25/98 at 1840 a leak was discovered between the pressurizer and a level transmitter instrument leg. The unit was degassed and entered mode 5 (cold shutdown) on 07/26/98.

The unit remained shutdown in mode 5 (cold shutdown) for the remainder of the month. j l

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