ML050250211

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December 2004 Monthly Operating Report for Millstone Power Station, Units 2 and 3
ML050250211
Person / Time
Site: Millstone  
Issue date: 01/13/2005
From: Sarver S
Dominion Nuclear Connecticut
To:
Document Control Desk, Office of Nuclear Reactor Regulation
References
05-006
Download: ML050250211 (8)


Text

.2 Dominion-Dominion Nuclear Connecticut, Inc.

Millstone Power Station Rope Ferry Road Waterford, Cl 06385 AI' 1l3l 3 U.S. Nuclear Regulatory Commission Attention: Document Control Desk Washington, DC 20555 Serial No.

MPS Lic/BAK Docket Nos.05-006 RO 50-336 50-423 DPR-65 NPF-49 License Nos.

DOMINION NUCLEAR CONNECTICUT. INC.

MILLSTONE POWER STATION UNITS 2 AND 3 DECEMBER 2004 MONTHLY OPERATING REPORTS In accordance with the reporting requirements of Technical Specification 6.9.1.7 for the Millstone Power Station Unit 2 (MPS2), and Technical Specification 6.9.1.5 for the Millstone Power Station Unit 3 (MPS3), attached are the Monthly Operating Reports for the month of December 2004. Attachment 1 contains the MPS2 Monthly Operating Report and Attachment 2 contains the MPS3 Monthly Operating Report.

If you have any questions or require additional information, please contact Mr. David W. Dodson at (860) 447-1791, extension 2346.

Very truly yours, St en P. Sarver, Director Nuclear Station Operations and Maintenance 2"'q D" (::-

Serial No.05-006 December 2004 Monthly Operating Report Page 2 of 2 Attachments:

2 Commitments made in this letter: None.

cc:

U.S. Nuclear Regulatory Commission Region I 475 Allendale Road King of Prussia, PA 19406-1415 Mr. V. Nerses Senior Project Manager U.S. Nuclear Regulatory Commission One White Flint North 11555 Rockville Pike Mail Stop 8C2 Rockville, MD 20852-2738 Mr. G. F. Wunder Project Manager U.S. Nuclear Regulatory Commission One White Flint North 11555 Rockville Pike Mail Stop 08-B-1A Rockville, MD 20852-2738 Mr. S. M. Schneider NRC Senior Resident Inspector Millstone Power Station

Serial No.05-006 December 2004 Monthly Operating Report Docket No.50-336 50-423 December 2004 Monthly Operating Report for Millstone Power Station Unit 2 (MPS2)

Millstone Power Station Units 2 and 3 Dominion Nuclear Connecticut, Inc. (DNC)

OPERATING DATA REPORT DOCKET NO.

UNIT NAME DATE COMPLETED BY TELEPHONE EXTENSION 50-336 Millstone 2 01/05/2005 S. Claffey (860) 447-1791 2456 OPERATING STATUS I.

Unit Name:

Millstone Unit No. 2

2.

Reporting Period:

December 2004

3.

Licensed Thermal Power (MWt):

2700.0

4.

Design Electrical Rating (Net MWe):

883.5

5. Maximum Dependable Capacity (Net MWe):

877.7

6. If Changes Occur in Capacity Ratings (Items Number 3 through 5)

N/A Since Last Report, Give Reasons:

l This Month Year-to-Date Cumulative

7. Number of Hours Reactor Was Critical 744.0 8708.5 166734.8
8.

Hours Generator On-Line 744.0 8677.9 160913.7

9.

Unit Reserve Shutdown Hours 0.0 0.0 468.2

10.

Net Electrical Energy Generated (MWH) 658666.0 7596036.9 132473612.7 OPERATING

SUMMARY

Millstone Unit 2 operated at or near 100% power during December 2004, with the exception of a planned down power to 96% power on December 17, 2004 in order to perform quarterly main turbine control valve stroke testing.

UNIT SHUTDOWNS DOCKET NO.

UNIT NAME DATE COMPLETED BY TELEPHONE EXTENSION 50-336 Millstone 2 01/05/2005 S. Claffev (860) 447-1791 2456 REPORTING MONTH: DECEMBER 2004 NO.

DATE TYPE DURATION REASON 2 METHIOD OF SH1TTING CAUSE I CORRECTIVE ACTIONS (HOURS)

DOWN REACTOR 3 COMMENTS N/A There was no unit shutdown in December 2004.

2 F.:

Forced Reason:

Method:

S:

Scheduled A - Equipment Failure (Explain)

I - Manual B - Maintenance or Test 2 -Manual Trip C - Refueling 3 -Automatic Trip D - Regulatory Restriction 4 -Continued from previous month E - Operator Training / Ucense Examination 5-Other (Explain)

F-Administrative G - Operational Error (Explain) it - Other (Explain)

Serial No.05-006 December 2004 Monthly Operating Report Docket No.50-336 50-423 December 2004 Monthly Operating Report for Millstone Power Station Unit 3 (MPS3)

Millstone Power Station Units 2 and 3 Dominion Nuclear Connecticut, Inc. (DNC)

OPERATING DATA REPORT DOCKET NO.

UNIT NAME DATE COMPLETED BY TELEPHONE EXTENSION 50-423 Millstone 3 01/07/05 R. Borchert (860) 447-1791 4418 OPERATING STATUS

1. Unit Name:

Millstone Unit No. 3

2. Reporting Period:

December 2004

3. Licensed Thermal Power (MWt):

3411.0

4.

Design Electrical Rating (Net MWe):

1156.5

5.

Maximum Dependable Capacity (Net MWe):

1148.0

6. If Changes Occur in Capacity Ratings (Items Number 3 through 5)

Design Electrical Rating increased Since Last Report, Give Reasons:

from 1153.6 MWe to 1156.5 MWe due to replacement of main turbine low pressure rotors This Month Year-to-Date Cumulative

7.

Number of Hours Reactor Was Critical 744.0 7980.9 119085.6

8. Hours Generator On-Line 744.0 7905.6 117280.7
9. Unit Reserve Shutdown Hours 0.0 0.0 0.0
10. Net Electrical Energy Generated (MWH) 859807.5 8983697.6 128830901.9 OPERATING

SUMMARY

Millstone Unit 3 performed a rapid downpower from 100% to 75% power at 1256 hours0.0145 days <br />0.349 hours <br />0.00208 weeks <br />4.77908e-4 months <br /> on December 1, 2004 due to problems with the circulating water screen wash system that caused a circulating water pump to trip. Plant power was returned to 100% at 0330 hours0.00382 days <br />0.0917 hours <br />5.456349e-4 weeks <br />1.25565e-4 months <br /> on December 2, 2004. The unit operated at or near 100% power for the remainder of December 2004.

UNIT SHUTDOWNS DOCKET NO.

UNIT NAME DATE COMPLETED BY TELEPHONE EXTENSION 50-423 Millstone 3 01/07/05 R. Borchert (860) 447-1791 4418 REPORTING MONTH: DECEMBER 2004 NO.

DATE TYPE' DURATION REASON2 METHOD OF SHUTTING CAUSE / CORRECTIVE ACTIONS (HOURS)DOWN REACTOR?

COMMENTS N/A There was no unit shutdown in December 2004 2

F:

Forced Reason:

Method:

S:

Scheduled A-Equipment Failure (Explain)

I - Manual B - Maintenance or Test 2 -Manual Trip C - Refueling 3 - Automatic Trip D - Regulatory Restriction 4 - Continued from previous month E -Operator Training / License Examination 5 - Other (Explain)

F-Administrative G -Operational Error (Explain)

H -Other (Explain)