ML20217A903

Monthly Operating Repts for Aug 1997 for Byron Nuclear Power Station,Units 1 & 2

ML20217A903
Person / Time
Site:	Byron
Issue date:	08/31/1997
From:	Kofron K, Vogl J COMMONWEALTH EDISON CO.
To:	NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
References
BYRON-97-0204, BYRON-97-204, NUDOCS 9709230084
Download: ML20217A903 (14)

Text

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SUBJECT:

Monthly Operating Report Byron Nuclear Power Station, Unita 1 and 2 NRC Docket Numbers: 50: 454 and 455 Gentlemen Enclosed for your information is the donthly Operating Report covering Byron Nuclear Power Station for the period August 1 through August 31, 1997 Sincerely, i

K. L. Kof on Station Man er i Byron Nuclear Power Station t 4

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cci A.B. Beach, Regional Administrator - RIII G. Dick, Byron Project Manager - NRR S. Burgess, Senior Resident Inspector - Byron Office of Nuclear Safety - IDNS INPO Records Center B. Lewis, McGraw - Hill Nuclear Publications Dept.

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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

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I. Monthly Report for Byron UNIT 1 for the month of August, 1997.

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• Summary of operating Experience for Unit 1 The Unit began this reporting period in Mode 1 (Power Operations).

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B. OPERATING DATA REPORT UNIT ONE DOCKET NO.: 050-454 UNIT Byron One DATE: 09/10/97 COMPILED BY: J. Vogl TELEPHONE: (815)234-5441 x2282 OPERATING STATUS

1. Reporting Period: August, 1997 Gross Hours: 744

2. Currently Authorized Power Level: 3411 (MWt)

Design Electrical Rating: 1175 (MWe-gro==s 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. 744 5,831 104,832

6. Rx Critical Hours 744 5,302.8 87,188.3

7. Rx Beserve Shutdown Hours 0 0 38

8. Hours Generator on Line 744 5,256.1 86,344.1

9. Unit Reserve Shutdown Hours 0 0 0

• 10. Gross Thermal Energy (MWH) 2,442,924 17,089,769 265,909,039.8

11. Gross Elec. Energy (MWH) 836,521 5,870,238 90,135,259

12. Net Elec. Energy (MWH) 797,716 5,584,589 85,489,344

13. Reactor Service Factor 100 90.94 83.17

14. Reactor Availability Factor 100 90.94 83.21

15. Unit Service Factor 100 90.14 82.36

16. Unit Availability Factor 100 90.14 82.36

17. Unit Capacity Factor (hDC net) 9'. 03 86.67 73.80

18. Unit Capacity Factor (DER net) 95.73 85.51 72.81

19. Unit Forced Outage Hrs. 0 79 1,912.4

20. Unit Forced Outage Rate 0 1.48 2.17

21. Shutdowns Scheduled Over Next 6 Months: BIR08

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

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

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C. AVERAGE DAILY UNIT POWER LEVEL UNIT ONE DOCKET NO.: 050-454 UNIT: Byron One DATE: 09/10/97 COMPILED BY: J. Vogi TELEPHONE: (815)234-5441 x2282 MONTH: August, 1997 DAY AVERAGE DAILY POWER LEVEL (MWe-Net)

1. 1082 MW 16. 1072 MW

2. 1077 MW 17. 1084 MW

3. 107 8 MW ---- 18. 1091 MW

4. 1084 MW 19. 1091 MW

5. 1091 MW 20. 1089 MW

6. 1091 MW 21, 1090 MW e

7. 1087 MW 22. 1091 MW

8. 1085 MW 23, 1089 MW

9. 1082 MW 24. 1084 MW 10, 1081 MW 25, 1087 MW

11. 1038 MW 26, 1082 MW

12. 1083 MW 27, 1079 MW

13. 1080 MW 28. 1083 MW ,

14, 800 MW 29, 1087 MW

15. 1017-MW 30. 1084 MW 31, 1083 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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-Report Period: August, 1997 UNIT SHUTDOWNS / REDUCTIONS BYRON ,

(UNIT 1)

No. Date Type Hours Reason Method LER Number System Corponent Cause & Corrective Action to Prevent Recurrence 30 H 5 CW 1A CW Box Tube Leak Investigation 6 8/13/97 F _

UNIT l WAS ON LINE FOR THE MONTH OF AUGUST.

Summary l

TYPE Reason Method System & Component l 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-Reducea Load Licensee Event Feport

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

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l . E. UNIQUE. REPORTING REQUIREMENTS (UNIT 1) for the month of August, 1997 i f

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1. Safety / Relief valve operations for Unit one. '

! VALVES NO & TYPE PIANT DESCRIPTION  ;

I DATE ACTUATED ACTUATION CONDITIOF OF EVENT 4

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3. Indications of failed fuel. i i

No. Fuel Reliability Indicatort FRI = 1.16 E-$ pCi/CC 4

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. E. IJCENSEE 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, August 1, 1997 through August 31, 1997. This information is provided pursuant to the reportablo occurrence reporting requirements as set forth in 10CFR 50.73.

Occurrence Licensee Event Report Number Date Title of Occurrence None 4

. 11. Monthly Report for Byron UNIT 2 for the month of August, 1997 A. Summary of Operating Experience for Unit 2 The Unit began this reporting period in Mode 1 (Power Operations).

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OPERATING DATA REPORT UNIT TWO DOCKET No.: 050-455 UNIT Byron Two DATE: 09/10/97 COMPILED BY J. Vog1 TELEPHONE (815)234-5441 x2282 OPERATING STATUS

1. Reporting Period: August, 1997. Gross Hourst 744

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)1 N/A THIS MONTH YR TO DATE CUMULATIVE *

5. Report Period Hrs. 744 5,831 87,936

6. Rx Critical Hours 744 5,720.3 77,243

7. Rx Reserve Shutdown Hours 0 0 0

8. Hours Generator on Line 744 5,694.1 76,540.7

9. Unit Reserve-Shutdown Hours 0 0 0

10. Gross Thermal Energy (MWF' 2,457,250 18,871,010 232,733,484.6

11. Gross Elec. Energy (MWH) 836,014 6,463,673 79,364,162 12.-Net Elec. Energy (MWH) 800,835 6,182,939 75,474,910

13. Reactor Service Factor 100 98.10 87.84

14. Reactor Availability Factor 100 98.10 87.04

15. Unit Service Factor 100 97.65 87.04

-16. Unit Availability Factor 100 97.65 87.04

17. Unit Capacity Factor (MDC net) 97.41 95.96 77.67-

18. Unit capacity Factor (DER net) 96.11 94.67 76.63

19. Unit Forced Outage Hrs. 0 0 1,815.4

20. Unit Forced Outage Rate 0 0 2.32

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 reflec- power generated prior to commercial se:vice.

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p. AVERAGE DAILY UNIT PodER LEVEL UNIT TWO

- . DOCKET No.: 050-455 UNIT: Byron Two DATE: 09/10/97 COMPILED BY: J. Vogl TELEPHONE: (015)234-5441 x2282 9 MONTH: August, 1997 DAY AVERAGE DAILY POWER LEVEL (MWe-Net)

1. 1056 MW 16. 1094 MW

2. 942 MW 17. 1108 MW

3. 1022 MW 18. 111J MW

4. 1109 MW- 19. 1116 MW

5. 1118 MW 20. 1112 MW

6. 1116 MW 21. 1116 MW

7. 1112 MW 22. 1116 MW

8. 1111 MW 23. 1041 MW

9. 1109 MW 24. 851 MW

10. 987 MW 25. 999 MW

11. 1114 MW 26. 988 MW

12. 1112 MW 27. 1018 MW

13. 1115 MW 28, 1199 MW

14. 1113 MW 29. 1114 MW 15, 1101 MW 30, 1109 MW

31. 1106 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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Report Period: August,,1997 UNIT SHUTDOWNS / REDUCTIONS BYRON ,

(UNIT 2)

No. Date Type Hours Beason Method LER Number System Component Cause & Corrective Action To Prevent Recurrence UNIT DID NOT GO BELOW 80% RX PWR. HOWEVER, THERE WAS A TUBE LEAK INVESTIGATION ON 2A CW BOX 8/24 - 8/27 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

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i E. UNIQUE REPORTING REQUIREMENTS (UNIT 2) for the month of August, 1997

1. Safety / Relief valve oporations for Unit Two.

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

2. Licensee generated changes to CDCM.

None 3.. Indications of failed fuel.

No. Fuel Reliability Indicator FRI = 4.32 E-5 pCi/cc-

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L LICENSEE EVENT REPORTS (UNIT 2)

The following is a tabular summary of all Licensee Event Report.s for Byron Nuclear Power Station, Unit Two, occurring during the reporting period, August 1, 1997 through August 31, 1997. This information is provided pursuant to ,

the reportable occurrence reporting requirements as set forth in 10CFR $0.73.

Occurrence Licensee Event Report Number Date Title of Occurrence None e

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