ML20210S609
| ML20210S609 | |
| Person / Time | |
|---|---|
| Site: | Calvert Cliffs  |
| Issue date: | 07/31/1999 |
| From: | Katz P, Olsen H BALTIMORE GAS & ELECTRIC CO. |
| To: | NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM) |
| References | |
| NUDOCS 9908180145 | |
| Download: ML20210S609 (7) | |
Text
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PETE. E. KATE Baltimore Gas and Electric Company Calvert Cliffs Nuclear Power Plant Plant General Manag Calvert Cliffs Nuclear Power Plant 1650 Calvert Cliffs Parkway
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Lusby, Maryland 20657 410 495-4101 A Member ofthe Constellation Energy Group August 11,1999 l
l U. S. Nuclear Regulatory Commission Washington,DC 20555 ATTENTION:
Document Control Desk
SUBJECT:
Calvert Cliffs Nuclear Power Plant Unit Nos.1 & 2; Docket Nos. 50-317 & 50-318 July 1999 Operating Data Reports The subject reports are being sent to you as required by Technical Specification 5.6.4.
Shuld you have any questions, please contact Mr. Bruce B. Mrowca at (410) 495-3989.
Very truly yours, b.
PEK/EMT/bjd Attachments cc:
R. S. Fleishman, Esquire Resident Inspector, NRC J. E. Silberg, Esquire R.1. McLean, DNR A. W. Dromerick, NRC J.11. Walter, PSC S. S. Bajwa, NRC P. Lewis, INPO
- 11. J. Miller, NRC K. N. Larson, ANI r
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i OPERATING DATA REPORT Docket No. 50-317 Calvert Cliffs Unit 1 August 9, 1999 Prepared by Herman O. Olsen Telephone : (410) 495-6734 REPORTING PERIOD JULY 1999 DESIGN ELECTRICAL RATING (NET MWe) 845 MAXIMUM DEPENDABLE CAP'Y (NET MWe) 835
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Year-Cumulative This month to-Date to Date
- 1. NUMBER OF HOURS REACTOR WAS CRITICAL 566.7 4,736.0 157,727.6
- 2. HOURS GENERATOR ON L.NE 566.7 4,723.7 154,797.7
- 3. UNIT RESERVE SHUTDOWN HOURS 0.0 0.0 0.0
- 4. NET ELECTRICAL ENERGY GENERATED (MWH) 470,939 4,043,938 125,667,298
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4 DOCKET NO. 50-317
',CALVERT CLIFFS - UNIT 1
' August 4,1999
SUMMARY
OF OPERATING EXPERIENCE July 1999 The unit began the month at 100% power.
. On 07/17/99 at 0400 power was reduced to 90% for waterbox cleaning. Power was returned to 100% on 07/18/99 at 2040.-
On 07/24/99 at 1438 an automatic reactor trip occurred due to a close proximity lighting strike to Main Transformer U-25000-12. The transformer fault protection circuitry opened the transformer output breakers, which caused a loss ofload trip of the turbine generator. The turbine generator trip in turn caused the reactor trip. The unit entered Mode 3 (hot standby).
Transformer repairs were completed and testing was in progress at the completion of the month. The unit remained in Mode 3.
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- OPERATING DATA REPORT Docket No. 50-318 Calvert Cliffs Unit 2 August 9, 1999 Prepared by Herman O. Olsen Telephone : (410) 4 95 -6734 i
i REPORTING PERIOD JULY 1999 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 WAS CRITICAL 744.0 3,779.6 149,172.7
- 2. HOURS GENERATOR ON LINE 744.0 3,728.8 147,359.1
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- 3. UNIT RESERVE SHUTDOWN HOURS 0.0 0.0 0.0
- 4. NET ELECTRICAL ENERGY GENERATED (MWH) 627,963 3,182,722 120,363,325 1
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,CALVERT CLIFFS - UNIT 2 August 4,1999 L
SUMMARY
OF OPERATING EXPERIENCE July 1999 The unit operated at 100% power for the entire month, l
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