ML20086C039

Monthly Operating Rept for Apr 1995 for Byron Nuclear Power Station

ML20086C039
Person / Time
Site:	Byron
Issue date:	04/30/1995
From:	Kofron K, Vogl J COMMONWEALTH EDISON CO.
To:	NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
References
BYRON-95-0167, BYRON-95-167, NUDOCS 9507060249
Download: ML20086C039 (13)

Text

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l LTR: BYRON 95-0167 FILE: 2.7.200 l

l Director, Office of Management Information and Program Control United States Nuclear Regulatory Commission l Washington, D.C. 20555 ATTN: Document Control Desk Gentlemen: -

Enclosed for your information is the Monthly Performance Report covering Byron Nuclear Power Station for the period April 1 through April 30, 1995.

Sincerely, V

'L. f n Station lager Byron Nuclear Power Station KLK/JV/rp cc: J.B. Martin, NRC, Region III NRC Resident Inspector Byron IL Dept. of Nuclear Safety Regulatory Services Manager Nuclear Fuel Services, PWR Plant Support INPO Records Center G.F. Dick, Jr. - USNRC F. Yost - Utility Data Institute, Inc.

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BYRON NUCLEAR POWER STATION UNIT 1 AND UNIT 2 MONTHLY PERFORMANCE REPORT COP 910NWEALTH ' EDISON COMPANY NRC DOCKET NO. 050-454 NRC DOCKET NO. 050-455 LICENSE NO. NPF-37 LICENSE NO. NPF-66s f

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I I. Monthlv Report for Byron UNIT 1 for the month of Anril 1995

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A. Summary of Operatine Experience for Unit 1 s i The Unit began this reporting period in Mode 1 (Power Operations).

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n B. OPERATING DATA REPORT DOCKET NO.: 050-454

" UNIT: Byron On2 DATE: 05/08/95 COMPILED BY: J. Vogl s.

TELEPHONE: (815)234-5441 -

x2282 OPERATING STATUS

1. porting Period: April, 1995 Gross Hours: 719

2. Currently Authorized Power Level: 3411 (MWt)

Design Electrical Rating: 1175 (MWe-gross)

Design Electrical Rating: 1120 (MWe-net)

Max Dependable capacity: 1105 (MWe-net)

3. Power Level to Which Restricted (If Any) : None

4. Reasons for Restriction (If Any) : N/A THIS MONTH YR TO DATE CUMULATIVE * '

5. Report Period Hrs., 719 2,879 84,336

6. Rx Critical Hours 719 2,879 70,864.3

7. Rn Reserve Shutdown Hours 0 0 38

8. Hy1rs Genera *ur on Line 719 2,879 70,149.2

9. Utgit Reserve Snutdown Hours 0 0 0

• 10. Gross Thermal Energy (MWH) 2,376,751 9,466,303 213,509,292

11. Gross Elec. Energy (MWH) 815,562 3,241,204 72,219,486

12. Net Elec. Energy (MWH) 779,568 3,098,521 68,453,750

13. Reactor Service Factor ,100 100 84.03

14. Reactor Availability Factor 100 100 84.07 l

15. Unit Service Factor 100 100 83.18

16. Unit Availability Factor 100 100 P3.18

17. Unit Capacity Factor (MDC net) 98.12 97.40 73.46

18. Unit Capacity Factor (DER net) 96.81 96.09 72.47

19. Unit Forced Outage Hrs. 0 0 1,794.E

20. Unit Forced Outage Rate 0 0 2.49

21. Shutdowns Scheduled Over Next 6 Months: 1 (B1P02)

22. If Shutdown at End of Report Period, Estimated Date of Startup: None

23. Onits in Test Status (Prior to Commercial Operation): None

• Not6 - The cumulative numbers do not reflect power generated prior to consnercial service.

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C. AVERAGE DAILY UNIT POWER LEVEL DOCKET NO.: 050-454 UNIT: Eyron On2 DATE- 05/08/95-COMPILED BY: J. Vogi .

TELEPHONE: (815)234-5441 x2282 MONTE: April, 1995 I DAY AVERAGE DAILY POWER LEVEL (MWe-Net)

1. 1097 MW 16, 1099 MW

2. 1101 W 17. 1098 MW i

3, 1096 MW 18. 1091 MW

4. 1102 W 19. 1102 MW

5. 1096 MW 20. 1103 MW

6. 1094 W 21, 1108 MW l l

7. 1096 W 22. 1106 MW l l

8. 1104 MN 23. 1083 MW  !

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9. 1106 MW 24. 1031 MW

10. 1106 MW 25. 738 MW

11. 1099 MW 26. 1038 MW i

12. 1105 W 27. 1103 MW

13. 1101 W 28. 1100 MW

14. 1104 MW 29. 1100 MW

15. 1100 MW 30. 1105 MW

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INSTRUCTIONS l

On this form list the average daily unit power level in MWe-Net for each day in the reporting month. Compute to the nearest whole megawatt. These figures will be used to plot a graph for each reporting month. Note that when maximum dependable capacity is used for the net electrical rating of the unit there may be occasions when the daily average power level exceeds the 100t line (or the restricted power level line.) In such cases the average daily unit power output sheet should be footnoted to explain the apparent anomaly.

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Report Period: April, 1995 UNIT SHUTDOWNS / REDUCTIONS

• BYRON *

(UNIT 1) ************************** .

No, __Datt Type Hours Reasgn Method _LER Number Strtr= Component Cause & Corrective Action to Prevent Recurrence 2 04/25/95 F 34 A 5 FN Switch Reduced Load To 20% RX Pwr To Repair Pressure Switch on 1FWOO9A Valve i

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• Summary *

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TYPE Reason Method System & Component F-Forced A-Equip Failure F-Admin 1-Manual Exhibit F & H S-Sched B-Maint or Test G-Oper Error 2-Manual Scram Instructions for C-Refueling H-Other 3-Auto Scram Preparation of D-Regulatory Restriction 4-Continued Data Entry Sheet E-Operator Training 5-Reduced Load Licensee Event Report

& License Examination 9-Other (LER) File (NUREG-0161) i e

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E. UNIOUE REPORTING REOUTRDENTS (UNIT 1) for the month of Anril, 1995

1. Safety / Relief valve operations for IInit One. '

VALVES NO & TYPE PLANT DESCRIPTION M ACTUATED ACTUATION CONDITION OF EVENT None

2. Licensee generated changes to ODC35.

None

3. Indications of failed fuel.

Yes. Fuel Reliability Indicator: FRI = 2.4 E-4 pCi/CC 6

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(9928MM/050895/7)

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LICENSEE EVENT REPORTS (UNIT 1) l The following is a tabular sumnary of all Licensee Event Reports for l Byron Nuclear Power Station, Unit One, occurring during the reporting period, '-

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. April 1, 1995 through April 30, 1995. This information is provided pursuant to '

the reportable occurrence reporting requirements as set forth in 10CFR 50.73.

Occurrence Licensee Event Reoort Numhar D Title of Occurrence None e

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II, Monthly Reoort for_RELhg, m it 2 for de NO d # '

A. Summary of Ooeratino Exoerience for Unit 2 (Power Operations).

' The Unit began this reporting period in Mode 1 s

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B. OPWtATING DATA REPORT

$ DOCKET NO. 050-455

, UNIT: Byron Two '

• DATE: 05/08/95 '

COMPILED BY: J. Vogl

• TELEPHONE: (815)234-5441 x2282 OPERATIFG STATUS

1. Reporting Period: April, 1995. Gross Hours: 719

2. Currently Authorized Power Level: 3411 (MWt)

Design Electri:al Rating: 1175 (MWe-gross)

Design Electrical Rating: 1120 (MWe-net)

Max Dependable Capacity: 1105 (MWe-net)

3. Power Level to Which Restricted (If Any): None

4. Reasons for Restriction (If Any) : N/A .

THIS MONTH YR TO DATE CUMULATIVE * ,

719 2,879 67,440  ;

5. Report Period Mrs.

719 1,858.5 58,373.9

6. Rx Critical Hours 0 0 0

7. Rx Reserve Shutdown Hours 719 1,829.9 57,739.7

8. Bours Generator on Line 0 0 0

9. Unit Reserve Shutdown Hours 2,323,403 5,353,030 170,336,928

10. Gross Thermal Energy (MWH) 802,796 1,840,076 57,974,260

11. Gross Elec. Energy (MWH) 767,250 1,737,902 55,025,299

12. Net Elec. Energy (MWH) 100 64.55 86.56

13. Reactor Service Factor 100 64,55 86.56

14. Reactor Availability Factor  !

100 63.56 85.62 )

15. Unit Service Factor i 100 63.56 85.62 j

16. Iklit Availability Factor 1

17. Unit Capacity Factor (MDC net) 96.57 54.63 73.84 72.85 l

18. Unit Capacity Factor (DER net) 95.28 53.90 0 0 1,399.2

19. Unit Forced Outage Mrs.

0 0 2.37

20. Unit Forced Outage Rate

21. Shutdowns Scheduled Over Next 6 Months: None

22. If Shutdown at End of Report Period, Date of Startup: None

23. Units in Test Status (Prior to Commercial Operation): None

• Note - The cumulative numbers do not reflect power generated prior to conenercial service.

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. C. AVERAGE DAILY UNIT POWER M 5

DOCKET NO.: 050-455 UNIT: Byron Two DATE: 05/08/95

• COMPILED BY: J. Vogl -

TELEPHONE: (815)234-5441 1

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MONTH: April, 1995 DAY AVERAGE DAILY POWER LEVEL l (MWe-Net) t l 1. 788 MW 16. 1111 MW f 2. 798 MW 17. 1111 Mw *

3. 1032 MW 18. 1107 MW i

,' 4. 1081 MW 19. 1117 MW i

j 5. 1089 MW 20. 1124 MW t

6. 1107 MW- *

21. 1123 MW

7. 531 MW 22. 1122 MW 3

8. 1097 MW 23. 1123 MW

9. 1122 MW 24. 1123 MW ,

10. 1122 MW 25, 1121 MW

11. 1113 MW 26. 1122 MW

12. 1121 MW 27. 1124 MW

13. 1116 MW 28. 1119 MW

14. 1118 MW 29. 10'5 5 MW

15. 1116 MW 30. 1035 MW 31.

9 INSTRUCTIONS On this forat list the average daily unit power level in MWe-Net for each day in the reporting month. Compute to the nearest whole megawatt. These figures will be used to plot a graph for each reporting month. Note that when maximum dependable capacity is used for the net electrical rating of the unit there may be occasions when the daily average power level exceeds the 100% line (or the restricted power level line.) In such cases the average daily unit power output sheet should be footnoted to explain the apparent anomaly.

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• BYRON UNIT SHUTDOWNS / REDUCTIONS Report Period: April, 1995 (UNIT 2)

Type Hours Reason Method LER Number System Comoonent Cause & Corrective Action To Prevent Recurrence No. Date A 5 RY Block Valve Reduced Pwr to 35% To Investigate Primary 3 04/07/95 F 47 Plant Leakage. PORV Block Valve 2RY8000A Was I

Leaking Through Packing. Packing Leak Was Isolated By Closing 2RY8000A. Plant Was Ramped Back Up To Full Power. Valve will be Fixed During Next Shutdown.

• Summary

• l Method System & Component TYPE Reason 1-Manual Exhibit F & H F-Forced A-Equip Failure F-Admin Instructions for 2

' B-Maint or Test G-Oper Error 2-Manual Scram C-Sched 3-Auto Scram Preparation of C-Refueling H-Other Data Entry Sheet

' D-Regulatory Restriction 4-Continued 5-Reduced Load Licensee Event Report E-Operator Training (LER) File (NUREG-0161) 9-Other

& License Examination 4

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4 E. UNIOUE REPORTING RioulxEMENTS (UNIT 21 for the month of Acril 1995 ,

1 safety / Relief valve operations for Unit Two.

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NO & TYPE PIANT DESCRIPTION VALVES ACTUATION CONDITION OF EVENT D&IE ACTUATED None

2. Licensee generated changes to CDCM.

None

3. Indications of failed fuel.

No. Fuel Reliability Indicator: FRI = 3.3 E-5 pCi/CC r

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F. LICENSEE EVENT REPORTS (UNIT 2) b The following is a tabular summary of all Licensee Event Reports for Byron Nuclear Power Station, Unit Two, occurring during the reporting period, April 1, 1995 through April 30, 1995. This information is provided pursuant to the reportable occurrence reporting requirements as set forth in 10CFR 50.73.

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Occurrence pgj;g Title of Occurrence Licensee Event Reoort Number 03/31/95 Entraction Steam Valve 455:95:002 Maintenance Without LCOAR Entry Due To Personnel Error.

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