ML20077P967

Monthly Operating Repts for Jul 1991 for Byron Nuclear Power Station,Units 1 & 2

ML20077P967
Person / Time
Site:	Byron
Issue date:	07/31/1991
From:	Ehle D, Pleniewicz R COMMONWEALTH EDISON CO.
To:	NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
References
BYRON-91-0580, BYRON-91-580, NUDOCS 9108200151
Download: ML20077P967 (14)

Text

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Byron Nuclear Station C' 4450 North German Church Road

. Byron, Illinois 61010 ,

i August 12, 1991 l

LTR BYRON 91-0580 FILE: 2.7.200 [

Director, Office of Management Information and Program Control i United States Nuclear Regulatory Commission Washington, D.C. 20555 ATTN Document Control Desk 1 i

Gentlemen ~

Enclosed for your information is the Monthly Performance Roport covering Byron Nuclear Power Station for the period July 1 through

• July 31, 1991. i Sincerely, i

i R. Plenlewicz /

• Station Manager [

Byron Nuclear Power Station 1

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 i Nuclear Fuel Services, PWR Plant Support i D. R. Eggett, Station Nuclear Engineering '

INPO Records Center -

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A. Hsia - USNRC '

F. Yost - Utility Data Institute, Inc.

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9108200Y$1 910731 ,/ //

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

LICENSE NO. NPF-66 r

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. - . . . _ _ ~ _ _ _ _ _ - . . . ._...--. .- .___. .__ _- ..

u I. Mo.nthly._Emport for__ Byron _11 HIT 1 for_theJnonth_JaLhly_1931 Au Sumrnary._D.LDPeIAting_ExpeI.lence_fo.r_llnit_1 The unit is continuing coastdown for scheduled refueling outage.

(0625M/0062M/2)

__.. . ~ - . . ~ ~ _ _ . - . - - . _ . - - - -. . . - . . - - - - -

IL 0f5RA21HG_ DATA.lEEDAT : _

DOCKET NO.: ~ 050-454 UNIT _ Byron One DATE: 08/12/91 COMPILED BY: D. Ehle TELEPHONE : (815)234-5441 x2263 OPERATING STATUS ,

1. Reporting Period: July, 1991. Gross Hours: 744

2. Currently Authorized Power Levelt 3411 (MWt)

Design Electrical Rating: 1175 (MWe-gross)

Design Electrical Rating: 1120 (MWe-net)

Max Dependable Capacity: 1105 (MWe-not)

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

4. Reasons for Restriction (If Any):

THIS MONTH Yo TO DATE CUMULATIVE *

5. Report Period Hrs. 744 a,087 .51,480

6. Rx Critical Hours 744 5,087 42,771.2

7. Rx Reserve Shutdown Hours 0 0 38 I

8. Hours Generator on Line 744 5,087 42,242.6

9. Unit Reserve Shutdown Hours 0 0 0

• 10. Gross Thermal Energy (MWH) 1,466,198 15,331,061 128,203,665 11.-Gross Elec. Energy (MWH) 486,595 5,186,657 43,267,737-

12. Net Elec. Energy (MWH) 453,329 4,920,487 40,832,752

13. Reactor Service Factor 100 100 83.1

14. Reactor Availability Factor 100- 100 83.2

15. Unit Service Factor 100 100 82.1 16.-Unit Availability Factor 100 100 82.1

17. Unit Capacity Factor-(MDC net)- 55.1 87.5 71.8 18.LUnit Capacity Factor (DER net) 54.4 86.4 70.8

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

20. Unit Forced Outage Rate 0 0 2.9

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)

..~_._,

t CuAVERAGE_DAILI UNIX.fDHER.LEYEL i DOCKET NO.: 050-954 UNIT: Dyron.One  !

DATE: 08/12/91 j COMPILED BY: D. Ehle  !

TELEPHONE: (815)234-5441 [

x2263 i i

MONTH: July, 1991 f f

DAY AVERAGE DAILY POWER LEVEL i

i. (MWe-Net)

1. 737_MW 3b. 6DJ E . ._

2. 739 MW 17. 591 MW .{

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3. 7.31.EM. 18. SAL E ___ I I

4, 731 MW 19, 553_1M i

5. 702_MW 20, SSS E I i

6. ____ 686 MW 21. 551_liW i

7. 681 MW 22. Si2 E  !

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( 8. 680.MW . 23. 54.b..}iM  !

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9. 647 MW 24. 541_MW J I 5

10. 663.MW 25, 513_J1W j t 11. 651 MW 26. 13J MW f I

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i - 12. 637 MW 27. 517 MW  !

13. 634 MW. 28. SlLMW [

t 14, 623.MW 29. 509 MW

\

15. 616_.MW 30. 499 E *

31. 479 MW i

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INSTRUCTIONS i l

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. On this form list the average daily unit power level in MWe-Net for each day j in the reporting month. Compute to the nearest whole megawatt. These figures ,

will be used to plot a graph for each reporting ti.onth. Note..that when maximum {

dependable capacity is used for the net electrical rating of the unit there i f

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 I j power output sheet should be footnoted to explain the apparent anomaly. f I -- l 5

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1 (0625M/0062M/4)  :

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Report Period July, 1991 UNIT SHUTDOWNS / REDUCTIONS-

• BYRON *

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

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_. No . Date Tv7e Hours ErasQn Method 5ER Number System Comnonent Cause & Corrective Action to Prevent Recurrenca. I No shutdowns or major reductions for Unit 1 in July. Unit is still coasting down for scheduled refueling outage.

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• 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-0151) r i

(0625M/0052M/5)

E. UNIOUE REPORT 2NG REOUIREMENTSJ UNIT li for theJDQatlL.0Lduly 1991 6

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

VALVES NO & TYPE PLANT DESCRIPTION DATI AC1VATED ACTUATlDN COND1210N QI EVENT None

2. Licensee generated changes to ODCH. (Y/N)

None.

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

No Fuel Reliability Indicator FRI = 1.1E-4 pCi/cc t

I t.

t h

F e

f (0625M/0062M/6)  :

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. . . _ . . . _ . _ . - . . . . - _ . . . _ _ . _ _ . _ . . . . . . _ _ . _ . . . _ . . - . _ _ . . . _ . _ _ . _ . . - . . _ . _ . _ . . . _ _._m.

r. LtCENSE52Y31LLREP_0B'XS . (UttLT JLL The following-1s a tabular cummary of.all Licensea Event Reports for g Byron Nuclesar. Power Station, Unit One, submitted during th'e reporting period,.

' July l'through July 31, 1991. 'This information is provided pursuant to the

. reportable occurrence reporting requirements as set forth in 10CTR 50.73.

Occurrence.

Li.cenacelvenLRagnr.t_Hmber . L>ete 2111e cL0ccurrence None t

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(0625M/0062M/7)

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I1. Eonthly_EcaotLlor : u .Vii1LLici.lbt montitoLhly._19.91

. A .' Swnmary_sL0 pea .. Egerience_ tor __UntL2 The unit began this . cing period in Mode 1 (Power Operation) and ~

continued there all ni....tl. The power level varied due to-load following requirements.

(0625M/0062M/8)

.__ _ . . _ . _. _ . _. _ _ . - . . . _ _ _ - . . ._...__m _ . _ . _ . _ _ . . _ . , . . _ _

~B. OPF:0,ATING DATA REPQRT DOCKET NO. ' 050-455 UNIT Byron Two DATES- 08/12/91 COMPILED BY: D. Ehle

• TELEPHONE: (815)234-5441 x2263 OPERATING STATUS

1. Reporting Period: July, 1991. Gross Hours: 744

2. Currently Authorized Power Level: 3411 (MWt)

Design. Electrical Rating: 1175 (MWe-gross)

Design Electrical Ratings 1120 (MWe-net)

Max Dependt4ble 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 34,584

6. Rx Critical Hours 744 5,087 29,819.1

7. Rx Reserve Shutdown Hours 0 0 0

8. Hours Generator on Line 744 5,087 29,371.6

9. Unit Reserve Shutdown Hours 0 0 0

10. Gross Thermal Energy (MWH) 2,303,117 16,294,392 80,605,784

11. Gross Elec. Energy (MWH) 774,662 5,535,880 27,273,975

12. Net Elec. Energy (MWH) 734,488 5,262,913 25,667,242

.13.-Reactor Service Factor 100 100 86.2 14 Reactor Availability Factor 100 100 86.2 15, Unit Service Factor 100 100 84.9

16. Unit Availability Factor 100 100 84.9 117. Unit Capacity Factor (MDC net) 89.3 93.6 67.2 l 18.= Unit Capacity' Factor (DER net) 88.1- 92.4 66.3

.19. Unit Forced Outage Hrs. 0 0 -886.4 l

20. Unit Forced Outage Rate 0 0 2.9

j. 21. Shutdowns Scheduled Over_.Next 6 Months: None

22. If Shutdown at End of-Report Perloo, 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.

l' (0625M/0062M/9)

C.u_ AVERAGE _DAILLWII.lWEILLEVEL DOCKET NO. 050-455 UNIT: Dyron Two DATE: 08/12/91 COMI'ILED BY: D. Ehle TELEP!KRiE (815)234-5441 x2263 MONTH: July, 1991 DAY AVERAGE DAIL' POWER LEVEL (MWe-Net)

1. _

976 MW 16. 99,L_FM

2. 1051_MW _

17. __J Qh7J1W

3. _ _ _ _ _ 10lLMW 18. _ . _ 101J13fi

4. _ _._10.B_MM__ __

19. .___.__1010JM ____ _ _ _ _

5. 9.59JiW __

20. ___ ___l 0 A L MM __.__ ____ _.

6. _. _99LMW 21. 94 fLMW ___ ___ __

7. _ _ _ . .__9 5 0_ FM ___. __

22. __ _ _ ._ __ _ . . _ _ ._ _9 8 2 _ MW . . _, _ . _ , _ . _

8. 1GQ.BJM_ 23. la0R_IN

9. 99LMM 24. _9]hjM ___

10, 963JM 25. 939JM_

al. _ 100LlM_ . _ _ _ _ . _ 26. ___ .___.9 0 L FM ._

12. 93A_MW 27. __ _910_bM_ _ __ _ _ ____

13. 91LQJfd 28. 9]_4j9

14. 910_1M 29. JQiLFM

15. 982 MW 30. 986 LiW

31. 10 0 0Jfd_____ _.._..___._

INSTRUCTIONS On this form list the average daily unit power level in MWe-Net for each day in the reporting month. Compute to the nearm t whole megawatt. These figures will be used to plot a graph for each ref.orting month. Note that when maximum dependable capacity is used for the net electrjc*1 rating of the unit there may be occasions when the daily average power level excerds the 100% line (or the restricted power level line.) In such cc: t he average daily unit.

power output cheet should be footnoted to expla'n *% apparant anomaly, (0625M/0062M/10)

• • w*********************** *-

Report Period July, 1991 UNIT SHUTDOWNS / REDUCTIONS

• BYRON .*

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

_Hou Datt Tvoe H0_ar_s Reason Method LER Number System Compogggt Caq[e&CorrectiveActiontoPreventRecurrence i

2 07/03/91 - -

F 5 Reduced Load per SPSO.

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• Summary *

• • • • • • • • • • • • • • • -I TYPE Reason Method System & Cornonent ,

t 4

F-Forced A-Equip Failure F-Admin 1-Manual Exhibit E & 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 4

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[

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J (0625M/0062M/ll)

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UNITE REPORTING REOUIREMZ2[TS (UNI W or the mont,h_g U gly J jl

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

VALVES NO & TYPE PLANT DESCRIPTION DAIE ACI11AIID AC1VAIIDH CQtID1IIDtl OF EVENI None

2. Licensee generated changes to ODCH. (Y/N)

None.

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

Yes fuel Rollability Indicator FRI = 5.3E-4 pC1/cc (0625M/0062M/12)

L__.LICEliSEE_IVEllLREE9RTS - (UNXT 21

,.. The following is a tabular-summary of all Licensee Event Reports for

,, Byron Nuclear Power.Statien, Unit Two,-submitted during the reporting period,.

July 1 through July 30,-1991. This information is provided. pursuant to the reportable occurrence reporting requirements as set forth in 10CFR 50.73.

Occurrence Licensee,_Eyent_Repsti_Rwnbst Datst Title _oL0ccurrence

.None d

i i=

l.

l -.

I l-(0625M/0062M/13)