ML20141C308

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Monthly Operating Repts for May 1997 for Byron Nuclear Power Station,Units 1 & 2
ML20141C308
Person / Time
Site: Byron  Constellation icon.png
Issue date: 05/31/1997
From: Vogl J
COMMONWEALTH EDISON CO.
To:
Shared Package
ML20141C301 List:
References
NUDOCS 9706250098
Download: ML20141C308 (13)
v • d • e


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l BYRON NUCLEAR POWER STATION UNIT 1 AND UNIT 2 MONTHLY PERFORMANCE REPORT COMMONWEALTH EDISON COMPANY NRC DOCKET NO. 050-454 NRC DOCKET NO. 050-455 LICENSE NO. NPF-37 LICENSE NO. NPF-66 l

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I 9706250098 970611 '

PDR ADOCK 05000454 R POR l

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  • I. Monthly Report for Byron UNIT 1 for the month of May, 1997 l A. Summary of Operatino ExDerience for Unie 1 The Unit began this repo): ting period in Mode 1 (Power Operations).

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B. OPERATING DATA REPORT UNIT ONE '

DOCKET NO.: 050-454

, , UNIT: ' Byron One DATE: 06/11/97 COMPILED BY: J. Vogl TELEPHONE: (815)234-5441 x2282 l

l l OPERATING STATUS r

1. Reporting Period: May, 1997 Gross Hours: 744' 1
2. Currently Authorized Power Level: 3411 (MWt)

Design Electrical Rating: 1175 (MWe-gross)

Des'ign 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 I l- l THIS MONTH YR TO DATE CUMULATIVE
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5. Report Period Hrs. 744 3,623 102,624
6. Rx Critical Hours 734.9 3,156.7 85,042.2 l
7. Rx Reserve Shutdown Hours 0 0 38 '

1 8, Hours Generator on Line 702.5 3,117.5 84,205.5 Unit Reserve Shutdown Hours 0 0 0

  • 10.' Gross Thermal Energy (MWH) 2,261,469 10,085,359 258,904,629.8
11. Gross Elec. Energy (MWH) 771,886 3,481,423 87,746,444

-12. Net Elec. Energy'(MWH) 734,284 3,308,569 83,213,324

13. Reactor Service Factor 98.78 87.13 82.87
14. Reactor Availability Factor 98.78 87.13 82.90

'15. Unit Service Factor 94.42 86.05 82.05

16. Unit Availability Factor 94.42 86.05 82.05
17. Unit Capacity Factor (MDC net) 89.32 82.64 73.'38
18. Unit Capacity Factor (DER net) 88.12 81.54 72.40
19. Unit Forced Outage Hrs. 9.6 9.6 1,843 l- '20. Unit Forced Outage Rate 1.35 0.31 2.14
21. Shutdowns Scheduled Over Next 6 Months: B1R08
22. .If Shutdown at End of Report Period, Estimated Date of Startup: 6/04/97
23. Units in Test Status (Prior to Commercial Operation)2 None
  • Note - The curunative numbers 'do not reflect power generated prior to commercial service.

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C. AVERAGE DAILY UNIT POWER LEVEL UNIT ONE DOCKET NO., 050-454 UNIT: Byron One l 4

DATE: 06/11/97 COMPILED BY: J. Vogl i TELEPHONE: (815)234-5441 x2282 i MONTH: May, 1997 DAY AVERAGE DAILY POWER LEVEL (MWe-Net)  ;

1. 1095 MW 16. 982 MW
2. 942 MW 17. 950 MW l

3, 12 MW 18. 1069 MW l

4. 208 MW 19. 1077 MW
5. 1068 MW 20. 1083 MW
6. 1086 MW 21, 1092 MW
7. 1086 MW 22. 1093 MW
8. 1086 MW 23. 1087 MW
9. 1090 MW 24. 1086 MW
10. 1087 MW 25. 1096 MW
11. 1082 MW 26. 1077 MW
12. 1086 MW 27. 1076 MW
13. 1088 MW 28. 1091 MW 14, 1087 MW 29. 1095 MW 15, 1068 MW 30. 1095 MW _
31. 360 MW INSTRUCTIONS 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 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
  • Report Period: May, 1997 UNIT SHUTDOWNS / REDUCTIONS (UNIT 1) **************************

No. Date Type Hours Reason Method LER Number System Component Cause & Corrective Action to Prevent Recurrence 3 5/03/97 S 16.09 B 9 AP Took Turbine Off Line To Inspect Bus Ducts Due To Over Heating 4 5/31/97 F 9.38 A 1 MS Took Unit Off To Repair 1A MSIV oo*************

0 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)

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.. D i E. UNIOUE REPORTING REOUIREMENTS (UNIT 1) for the month of May, 1997 I

! 1. Safety / Relief valve operations for Unit One.

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

2. Licensee generated changes to ODCM.

None ,

3. Indications of failed fuel.

No. Fuel Reliability Indicator: FRI = 7.06 E-5 pCi/CC l

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de l F. LICENSEE EVENT REPORTS (UNIT 1)

The following is a tabular summary of all Licensee Event Reports for )

Byron Nuclear Power Station, Unit One, occurring during the reporting period, May 1, 1997 through May 31, 1997. This information is provided pursuant to the reportable occurrence reporting requirements as set forth in 10CFR 50.73.

Occurrence Licensee Event Report Number Date Title of Occurrence l 454: 97-011 5/27/97 1B SI Pump Lube Oil Cooler Bracket Missing 1 I

454: 97-010 5/27/97 Failure To Perform CV Letdown Valve Slave Relay Surveillance 454: 97-009 5/23/97 Missed Tech Spec Surveillance l

454: 97-008 5/01/97 Inoperable SX Fans due to f

Incorrect Springs used in Breaker Refurbishment l

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05 P3 II.' Month 1V ReDort for Byron UNIT 2 for the month of May, 1997 l

A. S0mmary of Operating ExDerience for Unit 2 The Unit began this reporting period in Mode 1 (Power Operations),

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B. OPERATING DATA REPORT UNIT TWO DOCKET NO.: 050-455 UNIT: Byron Two DATE: 06/11/97 COMPILED BY: J. Vogl TELEPHONE: (815)234-5441 x2282 OPERATING STATUS

1. Reporting Period: May, 1997. Gross Hours: 744 l
2. Currently Authorized Power Level: 3411 (MWt) l ' 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 1

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

l THIS MONTH YR TO DATE CUMULATIVE *

5. Report Period Hrs. 744 3,623

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85,728 '

6. Rx Critical Hours 744 3,512.3 75,035
7. Rx Reserve Shutdown Hours 0 0 0 j 8. Hours Generator on Line 744 3,486.1 74,332.7
9. Unit Reserve Shutdown Hours 0 0 0
10. Gross Thermal Energy (MWH) 2,486,377 11,507,043 225,369,517.6
11. Gross Elec. Energy (MWH) 857,342 3,958,901 76,859,390
12. Net Elec. Energy (MWH) 820,070 3,785,335 73,077,306 i
13. Reactor Service FactJr 100 96,94 87.53 i I
14. Reactor Availability Factor 100 96.94 87.53
15. Unit Service Factor 100 96.22 86.71
16. Unit Availability Factor 100 96.22 86.71
17. Unit Capacity Factor (MDC net) 99.75 94.55 77.14
18. Unit Capacity Factor (DER net) 98.41 93.29 76.11
19. Unit Forced Outage Hrs. 0 0 1,815.4
20. Unit Forced Outage Rate 0 0 2.38
21. Shutdowns Scheduled Over Next 6 Months: None i 22. If Shutdown at End of Report Period, Date of Startup: None
23. Units in Test Status (Prior to Commercial Operation): None i

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

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C. AVERAGE DAILY UNIT POWER LEVEL UNIT TWO l

DOCKET NO.: 050-455 UNIT: Byron Two DATE: 06/11/97 COMPILED BY: J. Vogl TELEPHONE: (815)234-5441 x2282 MONTH: May, 1997 DAY AVERAGE DAILY POWER LEVEL (MWe-Net)

1. 1123 MW 16. 1111 MW
2. 1122 MW 17. 1127 MW 9
3. 1056 MW 18. 1120 MW
4. 1010 MW 19. 1124 MW
5. 1107 MW 20. 1130 MW
6. 1123 MW 21. 1092 MW
7. 1123 MW 22. 1126 MW I
8. 1118 MW 23. 1120 MW i
9. 1124 MW 24. 1117 MW i
10. 1125 MW 25. 1126 MW j 1
11. 1107 MW 26. 1129 MW I 12, 994 MW 27. 1125 MW
13. 987 MW 28. 1123 MW
14. 1051 MW 29. 1124 MW
15. 1052 MW 30. 1125 MW 31, 1113 MW INSTRUCTIONS j 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 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 * -

Report Period: May, 1997 UNIT SHUTDOWNS / REDUCTIONS (UNIT 2) **************************

No. Date Tyne Hours Reason Method LER Number System Component Cause & Corrective Action To Prevent Recurrence l

NO SHUTDOWNS OR MAJOR REDUCTIONS FOR UNIT TWO.

  • Summary
  • 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-Ol61)

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E, UNIOUE REPORTING REOUIREMENTS (UNIT 2) for the month of May, 1997

1. Safety / Relief valve operations for Unit Two.

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

2. Licensee generated changes to ODCM.

None

3. Indications of failed fuel.

No. Fuel Reliability Indicator: FRI = 5.30 E-5 pCi/cc d

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f F. LICENSEE EVENT REPORTS (UNIT 2)

The following is a tabular summary of all Licensee Event Reports for i Byron Nuclear Power Station, Unit Two, occurring during the reporting period,  ;

! May 1, 1997 through May 31, 1997. This information is provided pursuant to the reportable occurrence reporting requirements as set forth in 10CFR 50.73.

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Occurrence 1,icensee Event ReDort Number--- Date Title of Occurrence None I l

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