ML20063Q108

Monthly Operating Repts for Jul 1990 for Byron Nuclear Power Station Units 1 & 2

ML20063Q108
Person / Time
Site:	Byron
Issue date:	07/31/1990
From:	Orris K COMMONWEALTH EDISON CO.
To:
Shared Package
ML20063Q106	List: ML20063Q105 ML20063Q107 ML20063Q108
References
NUDOCS 9008170270
Download: ML20063Q108 (13)

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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 ,

LICENSL 130. NPF-66 t i

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9008170270 900810 PDR ADOCK 05000454 R FDC (0625M/0062M/1) t -

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1. M9Athly Report for Byron UNIT 1 for the month of July 1990___

A. Si= =ry of Operatina Emperience for Unit i The unit begar this reporting period in Mode.1 (Power Operation) at, approximately 99.3% power. The unit operated at power levels of up to 100% for the remainder of the month.

(0625M/0062M/2)

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B. OPIRAIIRG DATA REIX)RI DOCKET NO. 050-454 UNIT: Byron One DATE: 08/10/90 COMPILED BY K. Orris TELEPHCHE: (615)234-5441 x2444 OPERATING STATUS

1. Reporting Period: July, 1990. Gross Hourst 744

2. Currently Authorized Power Level 3411 (MWt)

Design Electrical Rating: 1175 (HWe-gross)

Design Electrical Rating: 1120 (MWe-net)

Max Dependeble Capacity: 1105 (MWe-net)

3. Power Level to Which Restricted (If Any): N/A

4. Reasons for Restriction (If Any):

THIS MONTH YR TO DATE CUMULATIVE *

5. Report Period Hrs. 744 5,087 42,720 '

6. Rx Critical Hours .744 3,534.2 34,074.2

7. Rx Reserve Shutdown Hours 0 0 38

8. Hours Generator on Line 744 3,460 33,554

9. Unit Reserve Shutdowr. Hours 0 0 0

10. Gross Thermal Energy (MWH) 2,309,888 10,424,551 101,684,991

11. Gross Elec. Energy (MWH) 784,542 3,530,530 34,274,948

12. Het Elec. Energy (HWH) 740,897 3,321,143 32,299,175

13. Reactor Service Factor 100 69.5 79.8

14. Reactor Availability Factor 100 69.5 79.9

15. Unit Service Factor 100 68.0 78.5

16. Unit Availability Factor 100 68.0 78.5

17. Unit Capacity Factor (MDC net) 90.1 59.1 68.4 i

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18. Unit Capacity Factor (DER net) 88.9 58.3 67.5  !

19. Unit Forced Outage Hrs. 0 138.0 1,195.0

20. Unit forced Outage Rate 0 3.8 3.5 q

21. Shutdowns Scheduled Over Next 6 Months: None  !

22. If Shutdown at End of Report Period, Estimated Date of Startop'  ;

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

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

i (0625M/0062M/3)

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W-4 C. AVERAGE DAILY UNIT POWER LEVEL DOCKET NO. 050-454 l UNIT Byron One DATE: 08/10/90 COMPILED BY: K. Orris TELEPHONE: (815)234-5441 '

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MONTH: July, 1990 l

-i DAY AVERAGE DAILY POWER LEVEL .)

-j (MWe-Net) l

1. _ 1061 MW 16. 847 MW

2. 1090 MW

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7 17. 818 MW l

3. 1034 MW 18, 951 MW  !

4. , _ _ . . . 1054 MW 19. 1080 MW i 5, 1070 MW 20.. 1079 MW r

f 6. 984 MW 21. '942 MW i I

7. 971 MW 22. 967 MW  !

P 968 MW 23, 967 MW  !

l l 9. 1082 MW 24, 1011 MW_

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10. 1076 MW 25. 971 MW i

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102.lLMW 26, 962 MW l'

12. 995 MW 27, 1077 MW i

13. 1022 MW 28. 1010 MW

14. 1060 MW 29. 940-MW i

15. 800 MW 30. 981 MW  ;

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31. 960 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 inegawatt. 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 ma} be occasions when the daily average power level exceeds the 100% line  ;

(or the restr.icted power level line.) In such cases the average daily unit power output sheet should be footnoted to explain the apparent anomaly.

-(0625M/0062M/4)

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4 UNIT SHUTDOWNS / REDUCTIONS

• BTRON

• R; port Period July, 1990 (UNIT 1) **************************

No. 'Date Iggg, Hou b b a- J cd X A a[ System Comoonent Cause & Corrective Action to Prevent Recurrence

7. 07/15/90 - 85:00 Isolated the 1A waterbox to investigate-and correct a tube leak.

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O Summary

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TYPE Reason Method System & Comnonent 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 l 4-Continued Data Entry Sheet-E-Operator Training 5-Reduced Load Licensee Event Report

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

)

(0625M/0062M/5) t i

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e E. UNIOUE REPORTING REOUISIMEliTS (UNIT 11 for thg. month of July _193Q'

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

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

2. L!.est=<ee generated'chapite to ODCM. (Y/N)-

Yes - Revision 0.A. to the ODCM, Chapter 11.

3. Indications of failed fuel. (Y/N)

No Fue) Rollability Indicator: FRI = 1.3E-4 pC1/cc-I I

i (062LM/0062M/6)

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L_ LLCENSEE EVENT REEORTS (UNIT 1)

The following is a tabular summary of all Licensee Event Reports for Byron Nuclear Power Station, Unit One, submitted during the reporting period, July 1 through July 31, 1990. This information is provided pursuant to the reportable occurrence reporting requirements as set forth in 10CTR 50.73.

Occurrence Licensee Etant_ Report Number Date Title of Occurrente 90-007 6/12/90 Main Steamline isolation systeni inoperable due to failure to test manual isolation handswitch. ,90-008 6/27/90 Required plant shutdown due to elevated containment temperature.

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(0625M/0062M/7)

II. Monthly Report for Byron UNIT 2 for the month of July 1990 ,j L _ Summary of Operating Exper13nce for Uni G The unit began this reporting period in Mode 1-(Power-Operation) at zpproximately 78.2% power. On July 14 t le unit was brought down to Mode 3 ,!

to repair a leak on the process Sampling System. The unit' entered Mode 2 at 1043 on July 17, and went critical at 1118 that same day. The unit is in coastdown in preparation for its refueling outage scheduled for September.

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(0625M/0062M/8)

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B. OPEEAIDEL. DATA REEORT DOCKET NO.: 050-455 UNIT: Byron Two DATE: 08/10/90 COMPILED ~BY: K'. Orris TELEPHONE: (815)234-5441 x2444 OPERATING STATUS-

1. Reporting Period: July, 1990. Gross Hours:: 744

2. Currently Authorized Power Level 3411 (MWt)

DeLign 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): N/A

4. Reasons for Restriction (If Any):  !

THIS MONTH YR'TO DATE CUMULATIVE *

5. Report Period Hrs. 744 5,087 25,824

6. Rx Critical Hours 662.3 4,938.3 .23,003.3

7. Rx Reserve Shutdown Hours 0 0 0

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8. Hours Generator on Line 657.5 4,925.5 22,610.5

9. Unit Reserve Shutdown Hours 0 0 0

10. Gross Thermal Energy (MWH) 1,509,466 14,903,597 60,471,206. I

11. Gross Elec. Energy (MWH) 510,759 5,120,508 20,465,308

12. Net Elec. Energy (MWH) 476,546 4,850,524 19,240,660

13. Reactor Service Factor 89.0 97.1 ' 89.1

14. Reactor Availability Factor 89.0 97.1 89.1

15. Unit Service Factor 88.4 96.8- 87.6

16. Unit Availability Factor 88.4 96.8 87.6 l

17. Unit Capacity Factor (MDC net) 58.0 86.3 67.4-

18. Unit Capacity Factor (DER net) 57.2 85.1 66.5 l

19. Unit Forced Outage Hrs. 0 26 845

20. Unit Forced Outage Rate 0 0.5 3.6 l

21. Shutdowns _ Scheduled Over Next 6 Months: 1 - September

22. If Shutdown at End of F:eport Period, Estimated Date of Startup: N/A

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

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

(0625M/0062M/9)

C. AVERAGE DAILY URIT POWER LEVIL DOCKET NO. ' 050-455 UNIT: Byron Two DATE: 08/10/90 '

' COMPILED BY: K. Orris TELEPHONE: .(815)234-5441 x2444

-l MONTH: June, 1990 DAY AVERAGE DAILY POWER LEVEL (MWe-Net)

1. 831 MW 16. -15 MW '

.2. 820 MW 17, 82 MW

3. 816 MW 18 . . 590 MW

4. 799 MW 19. 727 MW ,

5. 802 MW 20. 738 MW

6. 800 MW 21, 740 MW

7. 795 MW 2 2 '. - 742 MW

8. 779 MW 23, 731 MW

9. 781 MW 24. ~724 MW

10. 767 MW 25, 700 MW 11, 763 MW 26. 681-MW-12, 760 MW 27. 647 MW

13. 706 MW 28. 642 MW

14. -10 MW 29. 642 MW

15. -15 MW 30. 644 MW

31. 635 MW i

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 l 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 j (or the restricted power level line.) In such cases the average daily unit i power output sheet should be footnoted to explain the apparent anomaly.

l-l (0625M/0062M/10) l b

UNIT SHUTDOWNS / REDUCTIONS

• BYRON

• Raport Period June, 1990 (UNIT 2) **************************

No. Date Iygg Hours Reason Method LER Number System Comoonent Cause & Corrective Action to Prevent'Recurrince

6. 7/14/90 S 86:32 A 1 RC Unit was shutdown to' repair Process Sampling system leaks.

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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 Lead ~ . Licensee Event Report

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

(0625M/0062M/11)

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E. UNIOUE REPORTING REOUIREMENTS (UNIT 2) for the month of' July 1990 ,

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

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

2. Licensee generated changes to ODCM.- (Y/N)-

Yes. Revision O.A. to the ODCM, Chapter.11.

3. Indications of failed fuel. (Y/N)

Yes. Approximately two to five leaking fuel pins.

Fuel Reliability Indicator = 3.0E-3 pCi/cc t

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(0625M/0062M/12) ,

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t F. LICENSEE EVENT REEORTS (UNILD The following is a tabular summary of all Licensee Event Reports for Byron Nuclear Power Station, Unit Two, submitted during the reporting period, July 1 through July 31, 1990. This information is provided pursuant to the reportable occurrence reporting requirements as set forth in 10CFR 50.73.

Occurrence Licenseo Event Repnt Number Date Title of Occurregg NONE f

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( 0625M/0062K'13 )