ML032661080
| ML032661080 | |
| Person / Time | |
|---|---|
| Site: | Nine Mile Point  |
| Issue date: | 09/11/2003 |
| From: | Hopkins L Constellation Energy Group |
| To: | Document Control Desk, Office of Nuclear Reactor Regulation |
| References | |
| NMP2L 2100 | |
| Download: ML032661080 (4) | |
Text
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P.O. Box 63 Lycoming, New York 13093 Constellation Energy Group Nine Mile Point Nuclear Station September 11, 2003 NMP2L 2100 U. S. Nuclear Regulatory Commission Attn: Document Control Desk Washington, DC 20555
Subject:
Nine Mile Point Unit 2 Docket No. 50-4 10; NPF-69 Monthly Operating Report for August 2003 Gentlemen:
Submitted herewith is the Operating Data Report, the Unit Shutdowns, and Summary of Operating Experience for August 2003.
Very truly yours, Last-Lawrence A. Hopkins Plant General Manager LAH/Jm Attachments cc:
Mr. H. J. Miller, NRC Regional Administrator, Region I Mr. G. K. Hunegs, NRC Senior Resident Inspector
" g 4
ATTACHMENT A OPERATING DATA REPORT DOCKET NO.
DATE:
COMPLETED BY:
TELEPHONE:
50-410 09/0412003 T. P. McMahon (315) 349-4045 OPERATING STATUS Unit Name:
Reporting Period:
- 1. Design Electrical Rating (MWe)
- 2. Maximum Dependable Capacity (Net MWe)
Nine Mile Point Unit #2 August 2003 1,1433 1,119.8
- 3. Number of Hours Reactor was Critical:
- 4. Hours Generator On-Line:
- 5. Reactor Reserve Shutdown Hours:
- 6. Net Electrical Energy Gen. (MWH)
This Month 646.1 618.6 0.0 648,8893 Yr-to-Date 5,547.0 5,519.6 0.0 6,227,449.7 Cumulative 108,330.0 105,375.9 0.0 110,703,286.1
..- i UNIT SHUTDOWNS ATTACHMENT B REPORTING PERIOD - AUGUST 2003 DOCKET NO: 50-410 UNIT NAME: NMP#2 DATE: 9/02/03 Prepared by: T. McMahon TELEPHONE: (315) 349-4045 1
Duration Method of Cause & Corrective Actions No.
Date Type (Hours)
Reasons' Shutting Down Coments F:Forced S: Scheduled 0301 030801 F
49.9 A
3 Failure of a feedwater control circuit power (cont) supply resulted in reactor transient and eventual SCRAM (OPRM safety trip)
Extent of condition indicated two additional power supplies. All 3 power supplies were each replaced with a pair of power supplies for N+l redundancy, removing the single failure exposure 0302 030814 F
75.5 H
3 Offsite power grid disturbances.
Reason:
A-Equipment Failure (Explain)
B-Maintenance or Test C-Refueling D-Regulatory Restriction E-Operator Training & License Exam F-Administrative G-Operational Error (Explain)
H-Other (Explain)
Method:
I-Manual 2-Manual TriplScram 3-Automatic Trip/Scram 4-Continuation 5-Other (Explain)
ATTACHMENT C NARRATIVE OF OPERATING EXPERIENCE DOCKET NO: 50-410 UNIT NAME: NMP#2 DATE: 9/2/03 PREPARED BY: T. McMahon TELEPHONE: (315) 349-4045 Nine Mile Point Unit Two operated with a capacity factor (MDC) of 77.89% and an availability factor of 83.14% for the month of August 2003.
At the start of this reporting period, Nine Mile Point Unit Two remained in the forced outage, which began on July 24, 2003 at 0557 hours0.00645 days <br />0.155 hours <br />9.209656e-4 weeks <br />2.119385e-4 months <br /> when the plant automatically scrammed, because of an Oscillation Power Range Monitor (OPRM) trip signal. After redesign and replacement of the feedwater control circuit power supplies, the unit was synchronized to the grid at 0155 hours0.00179 days <br />0.0431 hours <br />2.562831e-4 weeks <br />5.89775e-5 months <br /> on August 3, 2003.
On August 14, 2003 at 1611 hours0.0186 days <br />0.448 hours <br />0.00266 weeks <br />6.129855e-4 months <br /> experienced an automatic reactor scram due to offsite power grid disturbances. The unit was synchronized to the grid at 1934 hours0.0224 days <br />0.537 hours <br />0.0032 weeks <br />7.35887e-4 months <br /> on August 17, 2003.
On August 22, 2003 at 2300 hours0.0266 days <br />0.639 hours <br />0.0038 weeks <br />8.7515e-4 months <br /> power was reduced to approximately 88% for rod line adjustment. After completion of the rod line maneuvers, full power was restored at 0845 hours0.00978 days <br />0.235 hours <br />0.0014 weeks <br />3.215225e-4 months <br /> on August 23, 2003.
There were no challenges to the safety relief valves during this reporting period.