GO2-04-159, August 2004 Monthly Operating Report for Columbia Generating Station
| ML042670369 | |
| Person / Time | |
|---|---|
| Site: | Columbia  |
| Issue date: | 09/15/2004 |
| From: | Oxenford W Energy Northwest |
| To: | Document Control Desk, Office of Nuclear Reactor Regulation |
| References | |
| GO2-04-159 | |
| Download: ML042670369 (3) | |
Text
ENWERGY NORTH WEST PO. Box 968
- Richland, Washington 99352-0968 September 15, 2004 G02-04-159 U.S. Nuclear Regulatory Commission ATTN: Document Control Desk Washington, D.C. 20555-0001
Subject:
COLUMBIA GENERATING STATION, DOCKET NO. 50-397 MONTHLY OPERATING REPORT AUGUST 2004
Dear Sir or Madam:
Transmitted herewith is the Monthly Operating Report for the month of August 2004 as required by Technical Specification 5.6.4.
Respectfully, WS Oxenford Plant General Manager Mail Drop 927M Attachment cc:
BS Malleft - NRC RIV WA Macon - NRC NRR NRC Senior Resident Inspector - 988C TC Poindexter - Winston & Strawn INPO ANI Library Utility Data Institute RN Sherman - BPA / 1399
OPERATING STATUS REPORT for Columbia Generating Station Date: September 1, 2004 1.
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Docket: 50-397 Reporting Period: August 2004 Utility
Contact:
Patricia Campbell (509) 377-4664 Design Electrical Rating (Net MWe): 1153 Maximum Dependable Capacity - summer (Net MWe): 1107 6.
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MONTH Hours Reactor Critical 307.7 Hours Generator On-Line 221.4 Unit Reserve Shutdown Hours 0.0 Net Electrical Energy (MWH) 206,315 YEAR 5,380.1 5,293.8 0.0 5,743,123 CUMULATIVE 132,238.6 128,707.4 3,274.7 128,610,775
U U UNIT SHUTDOWNS DOCKET NO.: 50-397 UNIT NAME:
Columbia Generating Station DATE: September 1, 2004 COMPLETED BY: P. Campbell TELEPHONE: (509) 377-4664 REPORT PERIOD: August, 2004 Type Method of Cause / Corrective Actions F: Forced Duration Shutting No.
Date S: Scheduled (Hours)
Reason (1)
Down (2)
Comments FO-04-01 7/30/04 F
387.8 A
4 High RPV pressure due to a DEH card failure and subsequent closure of (a) main turbine governor valvef.
On 8/15/04 the reactor scrammed in response to a feedwater pump trip which was due to a high water level in the drive turbine condenser drain tank.
FO-04-01 8/17/04 F
134.8 G
2 Scram was in response to a feedwater pump trip which was due to low pump (b)*
suction pressure induced when feedwater heaters were rapidly filled after repairs.
SUMMARY
Columbia Generating Station began the month continuing in the July 30, 2004 forced outage.
Reactor Power was increased in preparation for electrical power generation butIwas manually scrammed from about 15% power at 13:03 on August 15, 2004.
The reactor was scrammed in response to a feedwater pump trip.
High water level in the main condenser caused a high water level in the feedwater drive turbine condenser drain tank and resulted in a trip signal to the feedwater pumps.
The reactor was also manually scrammed at 05:28 August 17, 2004 from about 18% power. The scram was in response to a feedwater pump trip, which was due to low pump suction pressure induced when feedwater heaters were rapidly filled after repairs.
The plant achieved full power at 07:26 August 24.
A downpower to about 77% power for control rod set was performed the same day, and full power was achieved at 09:47 August 25, 2004.
Columbia counted this as one forced outage starting July 30th.
On.August 14 and 15 the reactor was brought critical, but the generator was never connected to the grid.
On August 16 th and 17th the reactor was started up again and the main generator was synchronized to the grid, but connected for less than 2 hours2.314815e-5 days <br />5.555556e-4 hours <br />3.306878e-6 weeks <br />7.61e-7 months <br />.
(1) REASON A - Equipment Failure B - Maintenance or Test C - Refueling D - Regulatory Restriction E - Operator Training &
License Examination F - Administration G - Operational Error H - Other (2) METHOD I - Manual 2 - Manual Trip/Scram 3 - Auto Trip/Scram 4 - Continuation 5 - Other (Explain)
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