ML20069J403

Monthly Operating Repts for May 1994 for Braidwood Nuclear Generating Station Units 1 & 2

ML20069J403
Person / Time
Site:	Braidwood
Issue date:	05/31/1994
From:	Kofron K, Pershey C COMMONWEALTH EDISON CO.
To:	NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
References
BW-94-0112, BW-94-112, NUDOCS 9406140355
Download: ML20069J403 (14)

Text

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C: nun:nw2alth Edis:n Braidwood Nuclear Power Station Route #1. Biox 84 Braceville, Illinois 60407 Telephone 815/458-2801 June 7, 1994 BW/94-0112 Director Office of Resource Management U.S. Nuclear Regolatory Commission Washington, D.C. 20555 Attention: Document Control Desk

Dear Sir:

Enclosed for your information is the Monthly Performance Report covering Braidwood Nuclear Generating Station for the period May 1 through May 31, 1994.

K. L. Kf n Station M nager Braidwood Station KLK/JL/dla o:\corresp\zebw94 Attachments cc: J. B. Martin, U.S.N.R.C., Region III R. R. Assa, U.S.N.R.C.

, D.N.S.

N.R.C. Resident Inspector, Braidwood

[: Records Center D. L. Farrar, Nuclear Regional Service Mgr.

D. M. Saccomando, Nuclear Licensing Admin.

D. R. Eggett, Nuclear Engineering Dept.

K. Kaup, Site Vice President, Braidwood N FS , PWR Plant Support Results Engineering Grp., Systems Eng., Bwd.

Nuclear Group, Systems Engineering, Bwd.

I.D.N.S. Resident Inspector, Braidwood J. M. Bunecicky, Westinghouse D. R. Seavers, A.N.I.

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BRAIDWOOD NUCLEAR POWER STATION UNIT 1 AND UNIT 2 l

MONTHLY PERFORMANCE REPORT Commonwealth Edison Company NRC DOCKET NO. 050-456, LICENSE NO. NPF-72 NRC DOCKET NO. 050-457, LICENSE NO. NPF-77 t

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SUMMARY

OF OPERATING EXPERIENCE Docket No.: 50 - 456 Unit: Braidwood 1 Date: 6/10/94 Completed by: Chris Pershey Telephone: 815-458-2801 Braidwood Unit 1 entered the month of May 1994 shutdown for refueling outage AIR 04. The Unit went back on line on May 13 and j operated routinely through the end of the month.

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- c B. OPERATING DATA REPORT Docket No.: 50 - 456 Unit: Braidwood 1 Date: 6/10/94 Completed by: Chris Pershey Telephone: 815-458-2801 OPERATING STATUS

1) Reporting Period: May 1994 Gross Hours: 744

2) Currently Authorized Power Level (MWt): 3411 Design Electrical Rating (MWe-gross): IT75 Design Electrical Rating (MWe-net): 1120 Max Dependable Capacity (MWe-gross): IT75 Max Dependable Crpacity (MWe-net): IT2~5

3) Power level to which restricted (if any): None

4) Reasons for restrictions (if any): None This Mo. Yr. to Date Cumulative

5) Report Period Hours: 744.0 3,623.0 51,176.0

6) Hours Peactor Critical: 485.8 1,976.3 39,574.5

7) RX Reserve Shutdown Hours: .0 .0 .0

8) Hours Generator on Line 441.0 1,929.2 38,954.2

9) Unit Reserve Shutdown Hours: .0 .0 .0

10) Gross Thermal Energy (MWHt): 1,094,300.0 5,906,641.1 119,941,468.1

11) Gross Elect. Energy (MWHt): 373,461.0 2,049,711.0 40,864,298.0

12) Net Elect. Energy (MWH): 349,102.0 1,953,561.0 39,096,378.0

13) Reactor Service Factor 65.3 54.5 77.3

14) Reactor Availability Factor: 65.3 54.5 77.3

15) Unit Service Factor: 59.3 53.2 76.1

16) Unit Availability Factor: 59.3 53.2 76.1

17) Unit Capacity Factor (MDC NET): 41.9 48.1 68.2

18) Unit Capacity Factor (DER NET): 41.9 48.1 68.2

19) Unit Forced outage Rate: .0 .0 9.1

20) Unit Forced outage Hours: .0 .0 3905.1

21) Shutdown Schedule Over Next 6 Months.

22) If Shutdown at End of Reporting Period, Estimated Date of Startup

l C. AVERAGE DAILY UNIT NET POWER LEVEL LOG j Docket No.: 50 - 456 I Unit: Braidwood 1 i Date: 6/10/94 j Completed by: Chris Pershey '

Telephone: 815-458-2801 MONTH: May 1994 ,

l Dy MWe-net Day MWe-net

1) - 15 16) 259 444

2) - 14 17)

3) - 12 18) 536

4) - 13 19) 533

5) - 12 20) 623

6) - 12 21) 1050

7) - 14 22) 1070

8) - 20 23) 1066 .

9) - 19 24) 1064

10) - 19 25) 1063 7

11) - 19 26) 1064

12) - 19 27) 1076

13) 45 28) 1066

14) 179 29) 1085

15) 261 30) 1124 *

31) 1123

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• Due to condenser efficiency.

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D. UNIT SHU"IDOWNS/ REDUCTIONS Docket No.: 50 - 456 Unit: Braidwood 1 Date: 6/10/94 Completed by: Chris Pershey Telephone: 815-458-2801 REPORT PERIOD: May 1994 -

LER Cause & Corrective Action No. Date Type Hours Reason Method Number System Component to Prevent Recurrence 17 940501 S 303.0 C 1 REFUEL OUTAGE i

SYSTEM & COMPONENT TYPE REASON METHOD F - Forced - A - Equipment Failure Maint or Test 1 - Manual Exhibit F &

S - Scheduled B - Maint or Test 2 - Manual Scram Instructions for C - Refueling 3 - Auto Scram Preparation of Data D - Regulatory Restriction 4 - Continued Entry Sheet Licensee E - Operator Training & Licensee Examination 5 - Reduced Load Event Report (LER)

F - Administration File (NUREG-0161).

G - Oper Error H - Other

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P. LICENSEE EVENT REPORTS Docket No.: 50 - 456 Unit: Braidwood 1 Date: 6/10/94 Completed by: Chris Pershey Telephone: 815-458-2801 l

The following is a tabular summary of all Licensee Event Reports i submitted during the reporting period, May 1 through May 31, 1994. )

This information is provided pursuant to the reportable occurrence reporting requirements as set forth in 10 CFR 50.73. ]

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l Licensee Event Report Number Date Title of Occurrence j 94-007 05/06/94 Steam Generator Tubes Degraded due to Axial Outer Diameter l Stress Corrosion Cracking. l 94-008 05/16/94 Both Diesel Generators Inoperable due to Misinterpretation of Surveillance Data.94-009 05/25/94 Unexpected Reactor Protection System Actuation due to )

Procedural Deficiency. j l

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SUMMARY

OF OPERATING EXPERIENCE Docket No.: 50 - 457 r Unit: Braidwood 2 Date: 6/10/94 Completed by: Chris Pershey Telephone: 815-458-2801 f

Braidwood Unit 2 entered the month of May 1994 in a forced outage due to a fault in the 2E Main Power Transformer. The Unit went 4 back on line on May 29, and progressed with power ascension through the end of the month.

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l E. OPERATING DATA REPORT Docket No.: 50 - 457 Unit: Braidwood 2 Date: 6/10/94 Completed by: Chris Pershey Telephone: 815-458-2801 OPERATING STATUS

1) Reporting Period: May 1994 Gross Hours: 744 r

2) Currently Authorized Power Level (MWt) 3411 Design Electrical Rating (MWe-gross): Tf75 Design Electrical Rating (MWe-net): Tf75 i Max Dependable Capacity (MWe-gross): IT75 Max Dependable Capacity (MWe-net) : TITU *

3) Power level to which restricted (if any): None

4) Reasons for restrictions (if any): None This Mo. Yr. to Date Cumulative ,

5) Report Period Hours: 744.0 3,623.0 49,258.0

6) Hours, Reactor critical: 73.9 2,344.6 40,658.7

7) RX Reserve Shutdown Hours: .0 .0 .0

8) Hours Generator on Line 63.2 2,333.9 40,320.2

9) Unit Reserve Shutdown Hours: .0 .0 .0

10) Gross Thermal Energy (MWHt): 62,421.3 6,811,118.9 121,361,737.2

11) Gross Elect. Energy (MWHt): 16,522.0 2,350,776.0 41,464,599.0

12) Net Elect. Energy (MWH): 4,255.0 2,262,067.0 39,728,650.0 '

13) Reactor Service Factor 9.9 64.7 82.5

14) Reactor Availability Factor: 9.9 64.7 82.5

15) Unit Service Factor: 8.5 64.4 81.9

16) Unit Availability Factor: 8.5 64.4 81.9

17) Unit Capacity Factor (MDC NET): 0.5 55.7 72.0

18) Unit Capacity Factor (DER NET): 0.5 55.7 72.0

19) Unit Forced Outage Rate: 91.5 35.6 6.4

20) Unit Forced Outage Hours: 680.8 1289.1 2735.1

21) Shutdown Schedule Over Next 6 Months. 9/94

22) If Shutdown at End of Reporting Period, Estimated Date of Startup I

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C. AVERAGE DAILY UNIT NET POWER LEVEL LOG Docket No.: 50 - 457 Unit: Braidwood 2 Date: 6/10/94 Completed by: Chris Pershey Telephone: 815-458-2801 MONTH: May 1994 Day MWe-net Day MWe-net

1) - 15 16) - 14

2) - 13 17) - 14

3) - 12 18) - 14

4) - 12 19) - 14 -

5) - 12 20) - 14

6) - 12 21) - 14

7) - 14 22) - 15

8) - 20 23) - 15

9) - 18 24) - 15

10) - 18 25) - 15

11) - 19 26) - 15

12) - 19 27) - 14

13) - 16 28) - 15

14) - 14 29) 74

15) - 14 30) 259

31) 265 Due to condenser efficiency.

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D. UNIT SHUTDOWNS / REDUCTIONS

• Docket No.: 50 - 457 Unit: Braidwood 2 Date: 6/10/94 ,

Completed by: Chris Pershey Telephone: 815-458-2801 REPORT PERIOD: May 1994 LER Cause & Corrective Action No. Date Type Hours Reason Method Number System Component to Prevent Recurrence 26 940501 F 680.8 A 3 EL XEMR 2E Main Power Transformer Failed.

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TYPE REASON METHOD SYSTEM & COMPONENT F - Forced A - Equipment Failure Maint or Test 1 - Manual Exhibit F &

S - Scheduled B - Maint or Test 2 - Manual Scram listructions for

.C - Refueling 3 - Auto Scram P;eparation of Data D - Regulatory Restriction 4 - Continued Entry Sheet Licensee E - Operator Training & Licensee Examination 5 - Reduced Load Event Report (LER)

F - Administration File (NUREG-0161).

G - Oper Error H - Other

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E. SAFETY / RELIEF VALVE OPERATIONS

• Docket No.: 50 - 457 Unit: Braidwood 2 Date: 6/10/94 Completed by: Chris Pershey Telephone: 815-458-2801 Valves No. & Type Plant

• Date Actuated Actuation Condition Description of Event l NONE l

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F. LICENSEE EVENT REPORTS Docket No.: 50 - 457 Unit: Braidwood 2 ,

Date: 6/10/94 i Completed by: Chris Pershey Telephone: 815-458-2801 The following is a tabular summary of all Licensee Event Reports submitted during the reporting period, May 1 through May 31, 1994. This information is provided pursuant to the reportable occurrence reporting requirements as set forth in 10 CFR 50.73.

Licensee Event Report Number Date Title of Occurrence 94-003 05/05/94 Reactor Trip due to Main Power Transformer Failure.94-004 05/06/94 Missed Technical Surveillance Requirement for Shutdown Margin due to Procedural Deficiency.

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