ML051290213

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April 2005 Monthly Operating Report for Limerick Generating Station, Units 1 and 2
ML051290213
Person / Time
Site: Limerick  Constellation icon.png
Issue date: 05/09/2005
From: Bryan Hanson
Exelon Generation Co, Exelon Nuclear
To:
Document Control Desk, Office of Nuclear Reactor Regulation
References
T.S. 6.9.1.6
Download: ML051290213 (3)


Text

T.S. 6.9.1.6 May 9, 2005 U. S. Nuclear Regulatory Commission Attn: Document Control Desk Washington, DC 20555 Limerick Generating Station, Units 1 and 2 Facility Operating License Nos. NPF-39 and NPF-85 NRC Docket Nos. 50-352 and 50-353

Subject:

Monthly Operating Report for April 2005 Attached is the monthly operating report for Limerick Units 1 and 2 for the month of April 2005 forwarded pursuant to Technical Specification 6.9.1.6 and the guidance of NRC Generic Letter 97-02. The attached monthly operating report data has also been entered into the INPO Consolidated Database for the month of April 2005 for Units 1 and

2.

If you have any questions or require additional information, please do not hesitate to contact us.

Sincerely, Original signed by Bryan C. Hanson Plant Manager-LGS Exelon Generation Company, LLC Attachments cc:

S. Collins, Administrator, Region I, USNRC S. Hansell, LGS USNRC Senior Resident Inspector

Unit:

Limerick 1 Docket No:

50-352 Date:

5/9/05 Completed by: Greg Lee Telephone:

(610) 718-3707 A.

OPERATING DATA REPORT REPORTING PERIOD-April 2005 Design Electrical Rating (MWe-Net) 1191.00 Maximum Dependable Capacity (MWe-Net) 1134.00 Month Year to Date Cumulative Hours Reactor Critical (Hours) 719.00 2,828.13 149,783.77 Hours Generator On-Line (Hours) 719.00 2,801.42 147,728.00 Unit Reserve Shutdown Hours (Hours) 0.00 0.00 0.00 Net Electrical Energy (MWh) 838,032.00 3,258,658.00 154,624,003.00 B.

UNIT SHUTDOWN No.

Date (yymmdd)

Type Generator Off-line Duration (hrs)

Reason Method Corrective Actions/Comments None during the month of April 2005

SUMMARY

Unit 1 began the month of April 2005 at 100% of rated thermal power (RTP).

There were no power changes during the month of April 2005.

Unit 1 ended the month of April 2005 at 100% RTP.

Type Reason Method F-Forced A-Equipment Failure (Explain) 1-Manual S-Scheduled B-Maintenance or Test 2-Manual Trip/Scram C-Refueling 3-Automatic Trip/Scram D-Regulatory Restriction 4-Continuation E-Operator Training/License Examination 5-Other (Explain)

F-Administrative G-Operational Error (Explain)

H-Other (Explain)

C.

SAFETY/RELIEF VALVE OPERATION Date Valves Actuated No. & Type of Actuation Plant Condition Description of Event None During April 2005

Unit:

Limerick 2 Docket No:

50-353 Date:

5/9/05 Completed by: Greg Lee Telephone:

(610) 718-3707 A. OPERATING DATA REPORT REPORTING PERIOD-April 2005 Design Electrical Rating (MWe-Net) 1191.00 Maximum Dependable Capacity (MWe-Net) 1134.00 Month Year to Date Cumulative Hours Reactor Critical (Hours) 719.00 2,381.30 125,584.53 Hours Generator On-Line (Hours) 719.00 2,301.08 123,722.82 Unit Reserve Shutdown Hours (Hours) 0.00 0.00 0.00 Net Electrical Energy (MWh) 838,656.00 2,531,505.00 133,504,872.00 B. UNIT SHUTDOWN No.

Date (yymmdd)

Type Generator Off-line Duration (hrs)

Reason Method Corrective Actions/Comments None during the month of April 2005

SUMMARY

Unit 2 began the month of April 2005 at 100% of rated thermal power (RTP). A minor adjustment (1 minute) has been made to the Feb 05 report for reactor critical hours and to the March 05 report for Generator On-line Hours.

On April 2nd at 22:00 hours, reactor power was reduced from 99.8% to 73.8% RTP for a rod pattern adjustment.

On April 3rd at 03:35 hours, reactor power was restored to 99.5% RTP.

On April 6th at 17:07 hours, reactor power was reduced from 99.8% to 95.1% RTP due to the loss of the 20 Bus. At 22:15 hours, reactor power was restored to 99.9% RTP.

Unit 2 ended the month of April 2005 at 99.9% RTP.

Type Reason Method F-Forced A-Equipment Failure (Explain) 1-Manual S-Scheduled B-Maintenance or Test 2-Manual Trip/Scram C-Refueling 3-Automatic Trip/Scram D-Regulatory Restriction 4-Continuation E-Operator Training/License Examination 5-Other (Explain)

F-Administrative G-Operational Error (Explain)

H-Other (Explain)

C. SAFETY/RELIEF VALVE OPERATION Date Valves Actuated No. & Type of Actuation Plant Condition Description of Event None during April 2005