BW990001, Monthly Operating Repts for Dec 1998 for Braidwood Generating Station,Units 1 & 2.With

Monthly Operating Repts for Dec 1998 for Braidwood Generating Station,Units 1 & 2.With

ML20199C901
Person / Time
Site:	Braidwood
Issue date:	12/31/1998
From:	Hildebrant D, Schwartz G COMMONWEALTH EDISON CO.
To:	NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
References
BW990001, NUDOCS 9901190186
Download: ML20199C901 (9)

Text

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l , , , Commonwealth Ediwn Company

.,. liraidwood Generating $tation Route 81.150x 84 liraceville. !!. N)iOWXil9 Tel Hl5-15R28ni I January 6,1999  ;

Bw990001 l l

l United States Nuclear Regulatory Commission l Attention: Document Control Desk l Washington, D.C. 2055-0001 i

Subject:

Monthly Operating Report for December,1998 Braidwood Generating Station, Units 1 and 2 Facility Operating Licenses NPF-72 and NPF-77 NRC Docket Nos. 50-456 and 50-457 Ladies and Gentlemen:

In accordance with Technical Specification 6.9.1.8, enclosed you will find the Monthly Operating Report for Commonwealth Edison Company's (Comed's) Braidwood Generating Station, Units I and 2, covering the period December 1,1998 through December 31,1998. j i

Please address any comments or questions regarding this matter to Don Hildebrant at (815) 458-2801, extension 2173.

Very truly yours,

, M& -

G. K. Schwartz Station Manager Braidwood Nuclear Station GKS/ law Enclosures cc: NRC Regional Administrator- Rlli I

l Braidwood Project Manager - NRR j NRC Senior Resident Inspector - Braidwood IDNS Resident inspector - Braidwood

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Office of Nuclear Facility Safety - IDNS 9901190186 981231I PDR ADOCK 05000456 l . _ _

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i cc: INPO Records Center VP Regulatory Services, Downers Grove Braidwood Nuclear Licensing Administrator, Downers Grove

' Nuclear Engineering Dept., Downers Grove l

Site Vice President, Braidwood

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Unit i Operating Engineer j Unit 2 Operating Engineer Westinghouse american Nuclear Insurers 1

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BRAIDWOOD NUCLEAR GENERATING STATION '

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UNIT 1 AND UNIT 2 l

MONTHLY OPERATING REPORT  !

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NRC DOCKET NO. 050-456, LICENSE NO. NPF-72 i

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l. ~ A. OPERATING DATA REPORT Docket No- 50-456 Unit: Braidwood 1 Date: 01/06/99 Completed by: Don Hildebrant t Telephone: 815-458-280lx2173 i

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t REPORTING PERIOD: December 1998 i i

1) Design Electrical Rating (Mwe Net) 1120

2) Maximum Dependable Capacity (Mwe Net) 1100 g i

l Month Year To Date Cumulative i

3) Hours Reactor Critical (Hours) 692.0 7019.8 72,421.9  ;

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4) Hours Generator on Line (Hours) 675.3 6977.8 71,520.2 ,

5) Unit Reserve Shutdown Hours (Hours) 0.0 0.0 0.0

6) Net Electrical Energy (Mwh) 766708 7,578,787 73,727,755 ,

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s C. UNIT SHUTDOWNS Docket No.: 50 - 456 .

Unit: Braidwwd 1 Date: 01/06/99 Completed by: Don Hildebrant Telephone: 815-458-2801x2173 REPORT PERIOD: December 1998 h Date m T Duration Reason Method Cause and Corrective Actions Hours and Comments 2 981201 F 68.8 A 1 Rupture disk failure on the Heater Drain Tank resulting in forced outage.

SUMMARY

On 11/29/98 the Heater Drain Tank rupture disk failed resulting in forced outage A1F32. This months report shows a continuation of this forced outage for 2.8 days during December. Upon retr.rning to service, the Unit performed normally for the remainder of the month.

TYPE REASON METHOD F - Forced A - Equipment Failure (explain) 1 - Manual S - Scheduled B - Maintenance or Test 2 - Manual Trip 1 Scram C - Refueling 3 - Automatic Trip 1 Scram D - Regulatory Restriction 4 - Continuation E - Operator Training I Licensee Examination 5 - Other (explain)

F - Administrative G - Operator Error (explain)

H - Other (explain)

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C. SAFETYI RELIEF VALVE OPERATIONS Docket No.: 50 -456 .

Unit Braidwood 1 Date: 01/06/99 Completed by: Don Hildebrant

. Telephone: 815-458-2801x2173 Valves No. & Type Plant Date Actuated Actuation Condition Description of Event None 1

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! A. OPERATING DATA REPORT Docket No: 50-457 Unit: Braidwood 2 Date: 01/06/99 Completed by: Don Hildebrant ,

Telephone: 815-458-280lx2173 i

REPORTING PERIOD: December 1998 l i) Design Electrical Rating (Mwe Net)' 1120 i

'O Maximum Dependable Capacity (Mwe Net) 1100 I

i Month Year To Date Cumulative 744.0 8,562.2 76,943.3

3) Hours Reactor Critical (Hours)

4) Hours Generator on Line (Hours) 744.0 8,554.4 76,493.5

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5) Unit Reserve Shutdown Hours (Hours) 0.0 0.0 0.0 l

6) Net Electrical Energy (Mwh) 853,037 9,694,639 79,567,465 l

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U C. UNIT SHUTDOWNS Docket No.: 50 -457 .

Unit- Braidwood 2 Date: 01/06/99 Completed by: Don Hildebrant Telephone: 815-458-2801x2173 REPORT PERIOD: December 1998 l

h Date Type Duration Reason Method Cause and Corrective Actions Hours and Comments ,

None i

SUMMARY

Unit 2 entered the month at 100% capability and operated routinely for the entire month.

TYPE REASON METHOD F - Forced A - Equipment Failure (explain) 1 - Manual  !

S - Scheduled B -Maintenance or Test 2 - Manual Trip t Scram C - Refueling 3 - Automatic Trip i Scram l D - Regulatory Restriction 4 - Continuation

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E - Operator Training I Licensee Examination 5 - Other (explain)

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F - Administrative  !

G - Operator Error (explain)

H - Other (expiain) ,

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C. SAFETY / RELIEF VALVE OPERATIONS Docket No.: 50 -457 .

Unit: Braidwood 2 Date: 01/06/99 Completed by: Don Hildebrant Telephone: 815458-2801x2173 Dde Actuated Act at Co ition Description of Event None b

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