ML022680028
| ML022680028 | |
| Person / Time | |
|---|---|
| Site: | Millstone  |
| Issue date: | 09/12/2002 |
| From: | Sarver S Dominion Nuclear Connecticut |
| To: | Document Control Desk, Office of Nuclear Reactor Regulation |
| References | |
| Download: ML022680028 (7) | |
Text
SDominion Dominion Nuclear Connecticut, Inc.
Millstone Power Station Rope Ferry Road Waterford, CT 06385 SEP 1 2 2002 Docket Nos. 50-336 50-423 B18747 RE: 10 CFR 50.71 (a)
U.S. Nuclear Regulatory Commission Attention: Document Control Desk Washington, DC 20555 Millstone Power Station, Unit Nos. 2 and 3 Facility Operating Li6ense Nos. DP.fZ;.65 and NPF-49 Monthly Olderatinci Reports
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In accordance with the reporting reurerments of T*chncal Specification 6.9.1.7 for Millstone Unit No. 2, and Techni*a&.Spetcification
-.9.1.5 for Millstone Unit No. 3, enclosed are the Monthly Oper~ati1t.. RFeports forf thlex,.*nonth of August 2002.
Attachment I contains the Millstone Unit No. 2 M6ntlyj Operating Report and contains the Millstone Unit No. 3 Monthly Oper'ating Report.
There are no regulatory commitments contained within this letter.
Should you have any questions regarding this submittal, please contact Mr. David W. Dodson at (860) 447-1791, extension 2346.
Very truly yours, DOMINION NUCLEAR CONNECTICUT, INC.
Stephen'P. Sarver, Acting Director Nuclear Station Operations and Maintenance Attachments (2) cc:
H. J. Miller, Region I Administrator R. B. Ennis, NRC Senior Project Manager, Millstone Unit No. 2 NRC Senior Resident Inspector, Millstone Unit No. 2 V. Nerses, NRC Senior Project Manager, Millstone Unit No. 3 NRC Senior Resident Inspector, Millstone Unit No. 3
Docket Nos. 50-336 50-423 B18747 Millstone Power Station, Unit No. 2 Facility Operating License No. DPR-65 Monthly Operating Report Aucqust 2002
U.S. Nuclear Regulatory Commissian B18747/Attachment 1/Page 1 OPERATING DATA REPORT DOCKET NO.
UNIT NAME DATE COMPLETED BY TELEPHONE EXTENSION 50-336 Millstone 2 09/01/2002 S. Stark (860) 447-1791 4419 OPERATING STATUS
- 1.
Unit Name:
Millstone Unit No. 2
- 2.
Reporting Period:
August 2002
- 3.
Licensed Thermal Power (MWt):
2700.0
- 4.
Design Electrical Rating (Net MWe):
870.0
- 5.
Maximum Dependable Capacity (Net MWe):
871.5
- 6.
If Changes Occur in Capacity Ratings (Items Number 3 Not Applicable through 5) Since Last Report, Give Reasons:
I This Month Year-to-Date Cumulative
- 7.
Number of Hours Reactor Was Critical:
603.3 4453.2 147920.2
- 8.
Hours Generator On-Line:
581.7 4357.4 142223.4
- 9.
Unit Reserve Shutdown Hours:
0.0 0.0 468.2
- 10.
Net Electrical Energy Generated (MWH):
489654.2 3644116.6 116200930.3 OPERATING
SUMMARY
The unit began August 2002 operating at or near 100% power.
On August 3, 2002, the unit downpowered to 97% power to perform main turbine control valve testing. During the power ascension on August 3, 2002, a leak was discovered in the chemical and volume control system. A plant shutdown was commenced at 1213, the main generator was taken off-line at 1612, and the reactor was shutdown at 1630 on August 3, 2002. The reactor was made critical at 1400 on August 6, 2002. The main generator was placed on-line at 0128 on August 7, 2002. An automatic reactor trip due to steam generator low water level occurred at 1033 on August 7, 2002, when the plant was at approximately 55%
power. The reactor was made critical at 0944 on August 10, 2002. The main generator was placed on line at 1937 on August 10, 2002. The unit operated at or near 100% power for the remainder of August 2002.
U.S. Nuclear Regulatory Commission B18747/Attachment 1/Page 2 UNIT SHUTDOWNS DOCKET NO.
UNIT NAME DATE COMPLETED BY TELEPHONE EXTENSION 50-336 Millstone 2 09/03/2002 S. Stark (860) 447-1791 4419 REPORTING MONTH:
Aucqust 2002 NO.
DATE TYPE 1 DURATION REASON '
METHOD OF SHUTTING CAUSE I CORRECTIVE ACTIONS (HOURS)
DOWN REACTOR 3 COMMENTS 02-04 8/03/02 F
81.3 A
1 Manual shutdown due to pinhole leak in chemical and volume control system (CVCS) piping. Leak was repaired by welding.
02.05 8/7/02 F
81.0 A
3 Automatic reactor trip from 55% power due to low steam generator water level.
Trip was caused by "B" steam generator feedwater pump (SGFP) discharge check valve failure to close during startup of SGFP. Check valve hinge pin was replaced.
2 3
F' Forced Reason:
Method:
S" Scheduled A - Equipment Failure (Explain) 1 - 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)
Docket Nos. 50-336 50-423 B138747 Millstone Power Station, Unit No. 3 Facility Operating License No. NPF-49 Monthly Operating Report Aucqust 2002
U.S. Nuclear Regulatory Commission B1 8747/Attachment 2/Page 1 OPERATING DATA REPORT DOCKET NO.
UNIT NAME DATE COMPLETED BY TELEPHONE EXTENSION 50-423 Millstone 3 09/01/2002 K. Cook (860) 447-1791 6572 OPERATING STATUS
- 1. Unit Name:
Millstone Unit No. 3
- 2.
Reporting Period:
August 2002
- 3.
Licensed Thermal Power (MWt):
3411.0
- 4.
Design Electrical Rating (Net MWe):
1153.6
- 5.
Maximum Dependable Capacity (Net MWe):
1130.5
- 6.
If Changes Occur in Capacity Ratings (Items Number 3 Not Applicable through 5) Since Last Report, Give Reasons:
This Month Year-to-Date Cumulative
- 7.
Number of Hours Reactor Was Critical:
744.0 5831.0 100230.1
- 8.
Hours Generator On-Line:
744.0 5831.0 98672.5
- 9.
Unit Reserve Shutdown Hours:
0.0 0.0 0.0
- 10.
Net Electrical Energy Generated (MWH):
805888.1 6583747.6 107679044.8 2.
OPERATING
SUMMARY
The unit operated at or near 100% power until August 15 at 0522, when an end of cycle coastdown was begun.
Coastdown was commenced in preparation for the refueling outage scheduled to begin September 7, 2002.
U.S. Nuclear Regulatory Commission B18747/Attachment 2/Page 2 UNIT SHUTDOWNS DOCKET NO.
UNIT NAME DATE COMPLETED BY TELEPHONE EXTENSION REPORTING MONTH:
50-423 Millstone 3 09/01/2002 K. Cook (860) 447-1791 6572 August 2002 NO.
DATE TYPE' DURATION REASON '
METHOD OF SHUTTING CAUSE I CORRECTIVE ACTIONS (HOURS)
DOWN REACTOR 3
COMMENTS There were no unit shutdowns in August 2002.
2 3
F' Forced Reason:
Method.
S" Scheduled A - Equipment Failure (Explain) 1 - Manual B - Maintenance or Test 2 - Manual Trip C - Refueling 3 -Automatic Trip D - Regulatory Restriction 4 - Continued from previous month E - Operator Training I License Examination 5 - Other (Explain)
F -Administrative G - Operational Error (Explain)
H - Other (Explain)