ML040500431

January 2004 Monthly Operating Report for Calvert Cliffs, Unit 1 and 2

ML040500431
Person / Time
Site:	Calvert Cliffs
Issue date:	02/13/2004
From:	Nietmann K Constellation Energy Group
To:	Document Control Desk, Office of Nuclear Reactor Regulation
References
Download: ML040500431 (7)

Text

Kevin J. Nietmann 1650 Calvert Cliffs Parkway Plant General Manager Lusby, Maryland 20657 Calvert Cliffs Nuclear Power Plant 410 495-4101 Constellation Generation Group, LLC 410 495-4787 Fax Constellation Energy Group February 13, 2004 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 Januarv 2004 Oneratina Data Renorts The subject reports are being sent to you as required by Technical Specification 5.6.4.

Should you have questions regarding this matter, we will be pleased to discuss them with you.

Very truly yours, KJN/CAN/bjd Attachments cc: J. Petro, Esquire Resident Inspector, NRC J. E. Silberg, Esquire R. I. McLean, DNR R. J. Laufer, NRC J. Wright, INPO G. S. Vissing, NRC K. N. Larson, ANI H. J. Miller, NRC X~q

OPERATING DATA REPORT Docket No. 50-317 Calvert Cliffs Unit 1 February 3, 2004 Prepared by Herman 0. Olsen Telephone:(410)495-6734 REPORTING PERIOD JANUARY 2004 DESIGN ELECTRICAL RATING (NET MWe) 845 MAXIMUM DEPENDABLE CAP'Y (NET MWe) 825 Year - Cumulative This month to-Date to Date

1. NUMBER OF HOURS REACTOR WAS CRITICAL 744.0 744.0 192,793.4

2. HOURS GENERATOR ON LINE 744. 0 744.0 189,629.7

3. UNIT RESERVE SHUTDOWN HOURS 0.0 0.0 0.0

4. NET ELECTRICAL ENERGY GENERATED(MWH) 641,232 641,232 155,340,947

UNIT SHUTDOWNS DOCKET NO. 50-317 UNIT NAME Calvert Cliffs - UI DATE February 2. 2004 COMPLETED BY Herman 0. Olsen TELEPHONE (410) 495-6734 REPORTING MONTH January 2004 NO.J DATE TYPE DURATION REASON' METHOD OF CAUSE/CORRECTIVE ACTIONS F: FORCED (HOURS) SHUTTING S: SCHEDULED DOWN 2 COMMENTS There were no shutdowns this month.

I A. a I 1 .3.

1 Reason: 2 Method:

A - Equipment Failure I - Manual B - Maintenance or Test 2 - Manual Scram.

C - Refueling 3 - Automatic Scram.

D - Regulatory Restriction 4 - Continued E - Operator Training & License Examination 5 - Other F - Administrative G - Operational Error H - Other

DOCKET NO. 50-317 CALVERT CLIFFS - UNIT 1 February 2, 2004

SUMMARY

OF OPERATING EXPERIENCE January 2004 The unit began the month at 100% power.

On 01/31/04 at 0100 power was reduced to approximately 67% for steam generator feed pump maintenance and Main Turbine Control Valve testing. Power was returned to 100% at 1915.

The unit operated at 100% power for the remainder of the month.

OPERATING DATA REPORT Docket No. 50-318 Calvert Cliffs Unit 2 February 3, 2004 Prepared by Herman 0. Olsen Telephone:(410)495-6734 REPORTING PERIOD JANUARY 2004 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 694.4 694.4 185,421.2

2. HOURS GENERATOR ON LINE 689.6 689.6 183,527.8

3. UNIT RESERVE SHUTDOWN HOURS 0.0 0.0 0.0

4. NET ELECTRICAL ENERGY GENERATED(MWH) 603,926 603,926 151,347,216

UNIT SHUTDOWNS DOCKET NO. 50-318 UNIT NAME Calvert Cliffs-U2 1 DATE February 2. 2004 COMPLETED BY Herman 0. Olsen TELEPHONE (410) 495-6734 REPORT MONTH January 2004 NO. DATE TYPE DURATION REASON' METHOD OF CAUSE/CORRECTIVE ACTIONS F: FORCED (HOURS) SHUTTING S: SCHEDULED DOWN 2 COMMENTS04-001 040123 F 54.4 A 3 On 01/23/04 at 1527 an automatic trip occurred from 100% power. The unit tripped on low steam generator water level caused by a loss of 22 Steam Generator Feed Pump. The unit was brought to a safe shutdown in Mode

3. Trouble shooting identified that the pump tripped on an inadvertent electronic overspeed signal caused by a degradation of voltage supplying the Digital Speed Monitor, which generated a trip signal to the feed pump controls trip circuit. The cause of the voltage degradation was corrected. A temporary alteration to remove this trip was performed on both feed pumps.

This temporary alteration was also performed on the other unit's feed pumps. The unit was paralleled to the grid on 01/25/04 at 2153. A detailed root cause analysis and a Licensee Event Report (LER) are in progress.

1 Reason: 2 Method:

A - Equipment Failure I - Manual B - Maintenance or Test 2 - Manual Scram C - Refueling 3 - Automatic Scram D - Regulatory Restriction 4 - Continued E - Operator Training & License Examination 5 - Other F - Administrative G - Operational Error

DOCKET NO. 50-318 CALVERT CLIFFS - UNIT 2 February 2, 2004

SUMMARY

OF OPERATING EXPERIENCE January 2004 The unit began the month at 100% reactor power.

On 01/23/2004 at 1527 an automatic reactor trip occurred due to low steam generator water level. The low levels were caused by a loss of 22 Steam Generator Feed Pump. Repairs were made to the feed pump control system and the unit was taken critical on 01/25/04 at 1701. The unit was paralleled to the grid at 2153 and returned to 100% power on 01/26/04 at 1055.

The unit operated at 100% power for the remainder of the month.