ML20079C214

Monthly Operating Repts for May 1991 for Byron Nuclear Power Station

ML20079C214
Person / Time
Site:	Byron
Issue date:	05/31/1991
From:	Ehle D, Pleniewicz R COMMONWEALTH EDISON CO.
To:	NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
References
BYRON-91-0411, BYRON-91-411, NUDOCS 9106190074
Download: ML20079C214 (14)

Text

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[~ C:mm:nw:alth Edison

-. . . Byron Nuclear Station kO* 4450 North German Church Road Byron. Illinois 61010 June 10, 1991 l I

LTR BYRON 91-0411 FILE: 2.7.200 Diret'or, Office of Management Information and Pro] ram Control United States Nuclear Regulatory Commission Washington, D.C. 20555 ATTH: Document Control Desk Gentlemen Enclosed for your information is the Monthly Performance Report covering Byron Nuclear Power Station for the period May 1 through May 31, 1991.

Sincerely, M ,.

R. Plenlewics Station Manager ,'

Byron Nuclear Power Station RP/DE/mw (0625M/0062M) cc A.B. Davis, NRC, Region III NRC Resident Inspector Byron Ill. Dept. of Nuclear Safety M. J. Wallace/K.L. Graesser Nuclear Licensing Manager Nuclear fuel Services, PWR Plant Support D. R. Eggett, Station Nuclear Engineering t INPO Records Center A. Hsia - USNRC l

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BYROli HUCLEAR POWER STATION UNIT 1 AND Ut11T 2 MONTHLY PERFORMANCE REPORT COMMONWEALTH EDISON COMPANY NRC DOCKET NO. 050-454 NRC DOCKET NO. 050-455 LICENSE NO. HPF-37 LICENSE NO. NPF-66 (0625M/0062M/1)

1 4

I. HQRthly_ Report for Byron UNIT 1 for th0_ month of May E l A. Summary _pf,ypggg gg y p,g ,g The unit began this reporting period in Mode 1 (Power Operation) and remained there all month. The power level varied due to load following requirements.

I i

- (0625M/0062M/2) l i-

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'. o lb _DPIRAT111LDATA_.RIERRT DOCKET NO.a 050-454 UNIT: Byron One DATE: 06/10/91 COMPILED BY: D. Ehle TELEP110NE: (815)234 5441 x2263 OPERATING STATUS

1. Reporting Period May, 1991. Gross Hours: 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): N/A

4. Reasons for Restriction (If Any):

Ti!IS MONTH YR TO DATE CUMULATIVE *

5. Report Period llrs. 744 3,623 50,016

6. Rx Critical Hours 744 3,623 41,307.2

7. Rx Reserve Shutdown 11ours 0 0 38

8. Hours Generator on Line 744 3,623 40,778.6

9. Unit Reserve Shutdown Hours 0 0 0

• 10. Gross Thermal Energy (MWil) 2,517,536 11,857,186 124,729,790

11. Gross Elec. Energy (MWH) 850,736 4,020,482 42,101,562

12. Net Elec. Energy (MWil) 809,682 3,823,679 39,735,944

13. Reactor Service Factor 100 100 82.6

14. Reactor Availability Factor 100 100 82.7

15. Unit Service Factor 100 100 81.5

16. Unit Availability Factor 100 100 81.5

17. Unit Capacity Factor (MDC net) 98.5 95.5 71.9

18. Unit Capacity Factor (DER net) 97.2 94.2 70.9

19. Unit Forced Outage Hrs. 0 0 1,266.4

20. Unit Forced Outage Rate 0 0 3.0

21. Shutdowns Scheduled Over Next 6 Months: Unit 1 fourth refuel outage.

22. If Shutdown at End of Report Period, Estimated Date of Startup:

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

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

(0625M/0062M/3)=

l

.- . - - - - - - - _ _ - - - - . - - - - - . = . . . ~ ~ - - . - - - _ - - . - -

. 4 C._._ AVE RAG E_D AILLUli1LPDN CILLEVEL DOCKET NO. 050-454 UNIT: Byron One DATE: 06/10/91 +

COMPILED BY: D. Ehle TELEPHONE : (815)234-5441 i x2263 MONTH: May, 1991 DAY AVERAGE DAILY POWER LEVEL (IMe-Ne t ) +

1. 1Qs2 MW 16. 1QB2 MW 2, 1006 MW 17. 1051 MW

3. 1110 MW 18, 1102 MW .,_

4, 1108 MW 19. 11DS_RW

5. 1104 MW 20. 1098 MW i

6. 1109 MW 21. 1Q21.,BW

7. , 1109 MW 22. 1026 ffd

8. 1097 MW 23. 1Df6 MW y 9, 1091 MW 24. 1087 MW

10. 1095 MW .,_. 25. 1087 MW

11. 1089 MW , , , , , _ 26. 1085 MW 12, 1087 MW 27. 1084 MW

13. 1084 MW 28. 1074 MW

14. 1087 MW' 29. 1072_MW

15. 1988_MW 30, 1068 MW

31. 1059 MW r

l 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 L dependable capacity is'used for the not 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.

(0625M/0062M/4) i L . ., _. . . _ .-.a.-__...... . ,. ,._._ . __..,____. _ _._..-.-.,_ _ . . . . . . _ _ , . . _ . .

Report Period May, 1991 UNIT SHUTDOWNS / REDUCTIONS

• BYRON *

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

• No. Date Tygq_ Hours Reasqn Methnd LER Number System Comoonent Cause & Corrective Action to Prevent Recurrence No shutdowns or major reductions for Unit 1 in May.

• Summary

• TYPE Reas.gn Method System &_ Component F-Forced A-Equip Failure F-Admin 1-Manual . Exhibit F & E 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)

(0625M/0062M/5)

, . )

4 E U RIOUE REPOR11HG REOUIREMENTS (UNIT 1) for the mmtth of May 1991

1. Safety / Relief valve operations for Unit One.

VALVES NO & TYPE PLANT DESCRIPTION DATE ACIUATED ACIUAIIDH C0 tid.IT10ti Of_.1VEII None

2. Licensee generated changes to ODCM. (Y/li)

None i

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

No Fuel Rellability_ Indicator FRI = 1.2E-4 pC1/cc l'

1 (0625M/0062M/6) y e *m-u 4 e av F- w-i 3 -wW-y- -q rT ,4 - ry w'q- 't't+ey4T w- w e F-g 7 gs- ettmrp,%-gy-*F1

,s E __ LICENSER _EVEIC_.REPORTEJUtUL1)

The following is a tabular summary of all Licensee Event Reports for Byron May NuclearMay 1 through Power Station, Unit One, submitted during the reporting period, 3b 1991. This information is provided pursuant to the reporteble occurrence reporting requiremeats as set forth in 10CTR 50.73.

Occurrence LiceR512_Elent_RepMLliumbel Date Iltle_af_QCs.urre nce 91-002 05-05-91 ESF Actuation due to lightning strike on 345 KV transmission lines.

(0625M/0062M/7)

=

4 II . Monthly _Bepo1Lio r_DyIon.UNIL2_ f oI_1he__ month _oLMay_1991 A. S umm ar y_oLQp eint ing_E2 pe11nn te_.loI_Un11_2 The unit began this reporting period in Mode 1 (Power Operation) and continued there all rnonth. The power level varied due to load following rcquirements.

(0625M/0062M/8)

B. OPERATIRC DATA REPORT DOCKET NO. 050-455 UNIT: Byron Two DATE: 06/10/91 COMPILED BY: D. Ehle TELEPHONE: (815)234-5441 x2263 OPERATING STATUS

1. Reporting Period: May, 1991. Groso Hours: 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): N/A

4. Reasons for Restriction (If Any):

1 THIS MONTH YR TO DATE CUMULATIVE *

5. Roport Period Hrs. 744 3,623 33,120

6. Rx Critical Hours 744 3,623 28,355.1

'7. Rx Reserve Shutdown Hours 0 0 0

8. Hours Generator on Line 744 3,623 27,907.6

9. Unit Reserve Shutdown Hours 0 0 0

10. Gross Thermal Energy (HWH) 2,374,353 7,600,307 76,110,499

11. Gross Elec. Energy (MWH) 804,410 4,022,509 25,760,604 12.. Net Elec. Energy (MWH) 764,762 3,826,955 24,231,284

13. Reactor Service Factor 100 100 85.6

14. Reactor Availability Factor 100 100 85.6

15. Unit Service Factor 100 100 84.3

16. Unit Availability Factor 100 100 84.3

17. Unit Capacity Factor (MDC net) 93.0 95.6 66.2

18. Unit Capacity Factor (DER net) 91.8 94.3 65.3

19. Unit Forced Outage Hrs. 0 0 886.4

20. Unit Forced Outage Rate 0 0 3.1

21. Shutdowns Scheduled Over Next 6 Months: None

22. If Shutdown at End of Report Period, Estimated Date of Startup:

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

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

(0625M/0062M/9)

e CuAVERAGE_DALLX_UH11_ PRE!LLIVIL DOCKET NO.: 050-455 UNIT: Byron Two DATE: 06/10/91 COMPILED BY: D. Ehle TELEPilONE: (815)234-5441 x2263 MONTH: May, 1991 DAY AVERAGE DAILY POWER LEVEL (MWe-Net)

1. 1051 MW 16. 1064 MW

2. 1019_MW 17. 109_i_MW

3. 1044 MW 18. 954 MW,

4. ___ 1063 MW 19. 951_MW l S. 9.96 MW 20. 1092_HN f, 1064 MW 21. 10ji!1 MW l

7. 103.1 MW 22. 1019 E l

)

8. 1040 MW 23, 1004 MW i 9. 1Q02 MW 24. LQ11_MW  !

I

10. 1Q23_FM 25, 858 MW l

11. 1019 MW 26. _919 MW

12. LQ19_MN 27. 932 MW 13, 1076 MW _ 28. 10&B MW

14. 1061 MW 29. 103L MW

15. 1090 MW 30. 1000 MW 31, 1025 MW l INSTRUCTIONS 1

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 l will be used to plot a graph for each reporting month. Note that when maximum l dependable capacity is used for the net electrical rating of the unit there mcy 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 sh: be footnoted to explain the apparent anomaly.

(0625M/0062M/10) i 1

l Report Period May, 1991 UNIT SHUTDOWNS / REDUCTIONS

• BYRON *

(UNIT 2) **************************

JL Date h linnrs Etanga Method LER Number System Component Cause & Corrective Action to Prevent Recurrence No Shutdowns or Major Reductions in May 1

i l

l l

l i **me***********

• Summary

• TYPE Rgason Methed 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 -Othe r (LER) File (NUREG-0151)

I (0625M/0062M/11)

E s._UN IQUE_R EPORTitlG_REQU.I EEM EHIS_lU111TlLIRIlhe_mu n tito LH ayl191

1. Safety / Relief valve operations for Unit Two.

VALVES NO & TYPE PLANT DESCRIPTIO!1 DATE ACTUATED ACTUAIlDH COH21210H OLIVIt1I None

2. Licensee generated changes to ODCM. (Y/H)

None

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

Yes Fuel Reliability Indicator: FRI e 4.4E-4 HCi/cc (06254/0062M/12)

s

.e f2__LICEllSILlVEliLEEEORTE_IU111T_11 The following is a tabular summary of all Licensee Event Reports for Dyron Nuclear Power Station, Unit Two, submitted during the reporting period, May 1 through May 31, 1991. This information is provided pursuant to the reportable occurrence reporting requirements as set forth in 10CFR 50.73.

Occurrence Licensee _E_venL EepoLLMwnbe.t Date Ti.tl e_I ', Dccurrence None L

(0J25M/0062M/13)