ML051390288

April 2005 Monthly Operating Report for Braidwood Station Units 1 and 2

ML051390288
Person / Time
Site:	Braidwood
Issue date:	05/13/2005
From:	Boerschig G Exelon Generation Co, Exelon Nuclear
To:	Document Control Desk, Office of Nuclear Reactor Regulation
References
BW050046
Download: ML051390288 (4)

Text

ExelknSM Exelon Generation Company, LLC www.exeloncorp.com Nuclear Braidwood Station 35100 South Rt 53, Suite 84 Braceville, IL 60407-9619 Tel. 815-417-2000 May 13, 2005 BW050046 U. S. Nuclear Regulatory Commission ATTN: Document Control Desk Washington, D. C. 20555-0001 Braidwood Station, Units 1 and 2 Facility Operating License Nos. NPF-72 and NPF-77 NRC Docket Nos. STN 50-456 and STN 50-457

Subject:

Monthly Operating Report In accordance with Technical Specification 5.6.4, "Monthly Operating Reports," we are submitting the Monthly Operating Report for Braidwood Station, Units 1 and 2. This report covers the period of April 1, 2005 through April 30, 2005.

If you have any questions regarding this letter, please contact Mr. Dale Ambler, Regulatory Assurance Manager, at (815) 417-2800.

Respectfully, Gregory A. Boerschig Plant Manager Braidwood Station Attachment DH/law cc: Regional Administrator - NRC Region III NRC Senior Resident Inspector - Braidwood Station 6;24

ATTACHMENT BRAIDWOOD STATION UNITS 1 AND 2 MONTHLY OPERATING REPORT EXELON GENERATION COMPANY, LLC FACILITY OPERATING LICENSE NOS. NPF-72 AND NPF-77 NRC DOCKET NOS. STN 50-456 AND STN 50-457

Docket No: 50-456 Unit: Braidwood 1 Date: 05103/2005 Completed by: Don Hildebrant Telephone: (815)417-2173 Braidwood Unit 1 Reporting Period: April 2005 A. OPERATING DATA REPORT IDesiqn Electrical Rating MWe Net) 1187 lMaximum Dependable Capacit (MWe Net) I 1156 I Month I Year To Date I Cumulative I Hours Reactor Critical Hours) 719.0 2,879.0 126,071.7 Hours Generator on Line (Hours) _719.0 2,879.0 125,083.8 Unit Reserve Shutdown (Hours) 0.0 0.0 0.0 Net Electrical Energy (MWh) 863,601 3,467,013 136,466,387 B. UNIT SHUTDOWNS EREASON METIHOD 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 / Licensee Examination 5 - Other (explain)

F - Administrative G - Operator Error (explain)

H - Other (explain)

No Date Type Duration Reason Method Cause and Corrective Actions and Hours Comments None

SUMMARY

Unit operated normally at full power for the entire month except for a minor load reduction for required Turbine Valve testing on 04/10/2005.

1 Description of Event No. & Type Plant Condition C. SAFETY I RELIEF VALVE OPERATIONS Date Valves Actuated No. & Type Plant Condition Description of Event Actuation None I I I Data From: Production Data Bank and Operator Logs

41 Docket No: 50-457 '

11 Unit: Braidwood 2 Date: 05/03/2005 Completed by. Don Hildebrant Telephone: (815)417-2173 Braidwood Unit 2 Reporting Period: April 2005 A. OPERATING DATA REPORT Desi n Electrical Rating (MWe Net) 1155 lMaximumDependableCapacity(MWe Net) 1131 Month Year To Date Cumulative Hours Reactor Critical Hours) 406.2 2,493.5 129 694.8 Hours Generator on Line (Hours) 383.0 2,460.0 129,001.9 Unit Reserve Shutdown (Hours) 0.0 0.0 0.0 Net Electrical Energy (MWh) 408.315 2,842,783 140 182 563 B. UNIT SHUTDOWNS TYEE 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 / Licensee Examination 5 - Other (explain)

F - Administrative G - Operator Error (explain)

H - Other (explain)

N Date Type Duration Reason Method Cause and Corrective Actions and Hours Comments 1 03/28/2005 F 23.02 A 4 On 03/28/2005 at 12:46 a failure in a through generator bushing caused a Unit trip.

04/01/2005 Repairs were made and the Unit was returned to normal service on

__ 04/01/2005 at 23:01.

2 04/17/2005 SI 312.783 C 1 Unit began scheduled refueling outage

._ - _ A2RI1 on 04/17/2005 at 23:13

SUMMARY

Unit returned to service following forced outage A2F39 (Generator Bushing Failure) on 04/02/2005 and operated normally at full power until 04/17/2005 at 23:13 when the Unit was manually removed from service for scheduled refueling outage A2RI 1.

C. SAFETY I RELIEF VALVE OPERATIONS Date Valves Actuated No. & Type Plant Condition Description of Event I Actuation None .

Data From: Production Data Bank and Operator Logs