L-MT-04-044, June 2004 Monthly Operating Report for Monticello
| ML041940502 | |
| Person / Time | |
|---|---|
| Site: | Monticello  |
| Issue date: | 07/12/2004 |
| From: | Thomas J. Palmisano Nuclear Management Co |
| To: | Document Control Desk, Office of Nuclear Reactor Regulation |
| References | |
| L-MT-04-044 | |
| Download: ML041940502 (4) | |
Text
Monticello Nuclear Generating Plant Operated by Nuclear Management Company, LLC July 12, 2004 L-MT-04-044 Technical Specification 6.7.A.3 U.S. Nuclear Regulatory Commission ATTN: Document Control Desk Washington, DC 20555 Monticello Nuclear Generating Plant Docket 50-263 License No. DPR-22 Monticello Monthly Operating Report In accordance with Technical Specification 6.7.A.3, attached is the Monthly Operating Report for June 2004 for the Monticello Nuclear Generating Plant. This letter makes no new commitments or changes to any existing commitments.
Thomas J. Palmisano Site Vice President, Monticello Nuclear Generating Plant Nuclear Management Company, LLC Enclosure cc:
Administrator, Region III, USNRC Project Manager, Monticello, USNRC Resident Inspector, Monticello, USNRC Minnesota Department of Commerce 2807 West County Road 75
- Monticello, Minnesota 55362-9637 Telephone: 763-295-5151
- Fax: 763-295-1454
ENCLOSURE MONTICELLO OPERATING DATA REPORT AND UNIT SHUTDOWNS JUNE 2004 2 pages follow
DOCKET NO. 50-263 UNIT NAME Monticello DATE July 1, 2004 COMPLETED BY J. I. Helland TELEPHONE 763-295-1333 OPERATING DATA REPORT REPORTING PERIOD: June 2004
- 1. Design Electrical Rating (MWe-Net) 600.0
- 2. Maximum Dependable Capacity (MWe-Net) 578.1 MONTH YEAR TO DATE CUMULATIVE
- 3. Number of Hours the Reactor Was Critical 649.4 4,296.4 241,168.8
- 4. Number of Hours the Generator Was On Line 625.8 4,272.8 237,661.4
- 5. Unit Reserve Hours 0.0 0.0 0.0
- 6. Net Electrical Energy (MWHe) 350,104 2,480,348 123,238,351
UNIT SHUTDOWNS DOCKET NO.
50-263 Monticello UNIT NAME DATE 07 04 COMPLETED BY J. I. Helland REPORTING PERIOD:
June 2004 TELEPHONE 763-295-1333 No.
(Year
- to -
date)
Date Type F:Forced S:Scheduled Duration (hours)
Reason (1)
Method of Shutting Down (2)
Cause/Corrective Actions Comments 1
6/18 S
94.2 B
2 Shutdown to fix recirc pump seal.
1 F
2 Reason:
Method:
A Equipment Failure (Explain) 1 Manual B
Maintenance or Test 2
Refueling 3
Automatic Trip/Scram D
Regulator Restriction 4
Continuation E
Operator Training & Licensing Examination e
5 Other (Explain)
Administrativ G
Operational Error (Explain)
H Other (Explain)
SUMMARY
- The plant operated at 100% power for the current month with the following exceptions: one unplanned thermal power reduction, one planned shutdown and some rod pattern adjustments. The unplanned reduction was to 30% power for about 10 hours1.157407e-4 days <br />0.00278 hours <br />1.653439e-5 weeks <br />3.805e-6 months <br /> on June 5th to work on the #12 recirc MG Set.
The power was reduced to the 94 - 97% range for a series of rod pattern adjustments over a roughly 40-hour time span on June 5th - June 7th. These were performed to bring the plant to the desired rod pattern.
The planned shutdown was to fix the #12 recirc pump seal. The shutdown began on June 17th and a manual reactor scram was inserted on the 18th. From breaker open to breaker close, the shutdown lasted about 94 hours0.00109 days <br />0.0261 hours <br />1.554233e-4 weeks <br />3.5767e-5 months <br />. The plant began starting up on June 21st and reached 100% power on June 22nd.
After the startup, the power was reduced to the 85 - 97% range for a series of rod pattern adjustments over a roughly 16-hour time span on June 22/23.
These were performed to bring the plant to an equilibrium rod pattern.