ML20083A470

Monthly Operating Repts for Aug 1991 for Byron Nuclear Power Station

ML20083A470
Person / Time
Site:	Byron
Issue date:	08/31/1991
From:	Ehle D, Pleniewicz R COMMONWEALTH EDISON CO.
To:	NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM), NRC OFFICE OF RESOURCE MANAGEMENT (ORM)
References
BYRON-91-0690, BYRON-91-690, NUDOCS 9109240159
Download: ML20083A470 (14)

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Commonwealth Edison

,, Hyson f 4uclear Station 445014onb Gt's tnan Chutt h fload Hyton, tituiois 61010 12, 1991 Sept einbe t LTH: BY kO11 91 -0690 P 11,E t 2.7.200 Information Director, Offico of Manngement and Program Control Cammission United States fluclear 20$55 Regulatory Washington, D.C .

A'I"DJ s Document Control !!csk s Gentlement inf ormation is thetheMonth]y period August Per1 through f ormance Report Enclosed for your Power Station foi covet ing Dyron Nticient 1suyunt 31, 1991.

Sincerely,

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RMC

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g, R. Plenlewicz Station Manager' Dyron Nuclear Power Station kP/DE/mw (0625M/0062M)

A.D. Davir., NRC, Reglon III cci NRC Resident Inspector Byron of Nuclear Safety Ill. Dept. ,

M. J. Wallace/K. L. Graesser Licensing Manager ort Nuc 3 ent Nuclear fuel Services, PWR Plant Supp Engineering D. D. Eggett, St ation Nucient INPO Records Center Inc.

A. Hsia USNRCUtility Data Institute, 4 P. Yost f

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1 IWRON NUCLEAR POWER STATION UNIT 1 AND UNIT 2 MONTHLY PERFORMANCE REPORT COMMONWEALTH EDISON COMPANY f

HRC DOCKET NO. 050-454 NRC DOCKET NO. 050-455 i

LICENSE NO. NPT-37 LICENSE NO. NPF-66 i

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-(0625H/0062M/1) i

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- I .. Monthly _ Iter 21 for DyI.cn UNILLior_.1he_100ntitoLAugusL1991 A.__Swtunary_9LOperating Expotience .foL_UniL1 The unit =10 continuing coastdown for scheduled refueling outage.

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D . ._ ..OPIF ATING _. DATA _ REPORT DOCKET NO.t 050-4b4 1TH IT liyton Ono DATE: 09/12/91 COMPILED liY: D. Ehle TEl,EPilotlE t (815)234-5441 x2203 ,

OPERATING STA'NS Peporting Period: August, 1991. Gross llourst 744 1.

2. Currently Authorized Power Levels 1411 (MWL)

Design Electrical Ratinyt 1175 (MWe-gtess)

Design Electrical Rating: 1120 (MWe-net)

Max Dependable Capacity: 1105 (MWe-net)

3. Power Level to Which Restricted (11 Any)t N/A

4. Reasons for Restriction (If Any)

Tills MONTil YR TO DATE CUMUI. ATIV E*

744 5,831 52,224

5. Iteport Period llrs.

744 5,831 43,515.2

6. Rx Critical flours 0 0 38

7. Rx Reuervo Shutdown Hours 744 5,831 42,986.6

8. Ilours Generator on Line 0 0 0

9. Unit. Rese:ve Shutdown flours 16,373,330 129,245,934

• 10. Gross Tb- el Energy (MWil) 1,042,269 Energy (MWil) 320,718 5,507,375 43,580,455

11. Gross E4.,c.

289,949 5,710,436 41,122,701

12. Net Elec. Ener gy (MWil) 100 100 83.32

13. Reactor Service Factor

14. Reactor Availability Factor 100 100 83.40

15. Unit Service factor 100 100 82.31

16. Unit Availability Factot 100 100 B2.31

17. Unit Capacity ractor (MDC net) 35.3 80.87 71.26

18. Unit Capacity factor (DER net) .

34.8 79.78 70.31 0 0 1,266.4

19. Unit ronced Outage Hrs.

0 0 2.86

20. Unit Forced Outage Rate

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

22. If Shutdown at End of Report Period, Estiinated Dato of Startupt

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

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

(0625M/0062M/3)

C, .i AVERAGE DAILL UNILPOWER LEVEL DOCl(ET NO. 050-454 UNITI Ilyton One 9 ATE: 09/12/91 COMPILED 13Y: D. Ehle TELEP110NE : (815)234-5441 ,

x2263 I MONTill August, 1991 i i

l DAY- AVERAGE D.%ILY POWEh LEVEL (MWe-Net)

1. .474 MW __ _ 16. . 392 E L _ _ _ _._

2. 459 MW 17. .387-MW i I

3. _____A c L Hg.__.__ _ i n . _.. 3flLMW _

4. 405 E 19. 17JL.Mit

5. 450E 20. ______ _3 0 LMW __

6. 340_W 21. 3.5 LMH -

=7. 431 3 22. 353_MW i D. .

. 424Jiy 2 3 . ._ - .._3A flE

9. 414 E 24. 3ALMW ,

10. 422_MW _ 2 5 . _ _ _. . _ _ _._ _ 34 LHW 11, 415_MW - - _ _ - _

26, 331LMW _ - __

12. _414_MW 27. 330 E

13. 40LMW _ 28. . _31LMW_ _

14. - 395 E 29. 3aLMW_ . _ _

15, 3.6LW 30. _ 31LMW

31. 320 E INSTRUCTIONS On this form list'the average. daily unit power level in MWe-Net for each day

.in the reporting month. Compute to t.he nearest, whole megawatt. These figures will'be.used to plot a graph for each reporting month. Note that when. maximum dependable capacity is used f or the net elect.rical 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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QTIONS *s e n s s s s s s ,e s s s sunn sesnsssxx

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(UNIT 1)

• * * * * * * * * * *B YRON

_. Type IIouta lleason Me_thod lEILN No O at Pwns or major reducti uribet_ SystenL_. Component ons for Unit 1 in August.

Caused.Jonentivea\ctlolttol revenLRecurren Unit is still coasting down f refueling outage. or scheduled Reas9rL_. _ _ _ __ . _ . _ _

A-Equip Failure Method._ _..._ _ _ _.

B-Maint or Test F-Admin G-Oper Error 1-Manual SysteaL&_ Component _ __

C-Refueling ________.

II-Othe r 2-Manual Scram D. Regulatory Restriction Exhibit F & H E-Operator Training 3-Auto Scram Instructions for 4-Continued Preparation of

& License Examination 5-Heduced Load Data Entry Sheet 9-Other Licenseo Event Report (LER)

Flie (NUREG-0161)

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s RO?Cft Period August, 1991 UiTIT SIL'IDOWh~d/REDUpIONS

• BTRCN *

{ UNIT 1) **************************

_Nh._ ___Date Mt. li2ns Egason Method _LER Nu;nber System Comonent Cause & Corrective Attien to Prevent Reinmne No shutdowns or major reductions for Unit 1 in August. Unit is still coasting down for scheduled refueling outage.

• Summary

• HP_E Reason Methgd Sysle d l c_ gnent F-Forced A-Equip Failure F-Admin 1-Manual Exhibit F & II S-Sched B-Maint or Test G-Oper Errcr 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 Exaa:ination 9-Other (LER) File ( h"t! REG-O l61 )

(0625M/0062M/5)

E.__. UNIQUE _ REl'0FTING_. REQUIREMENTS _iUNIT_1L.f or. the twnth_of August.1991 i

1. Safety / Relief valve operations for Unit One.

VALVES 110 & TYPE PL)J4T DESCRIPT1024 DATE ACTUATED ACTUAT10H Col 191710H OE_ EVI;HT lione

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

None.

J. Indicatious of falled fuel. (Y/N)

No Fuel Reliability Indicator FRI = 1.6E-4 pCi/cc New coraputational method accounts f or 38% increase.

(0625M/0062M/6)

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-f... LICENSEE _ EVENT.REPOETS.1 UNIT _1) l The_ following is a tabular stunmary of all Licensee Evont Reports for byron Nuclear Power Station, tinit One, sulunitted during the reporting period, i August 1 through August 31, 1991. This inf or: nation 1s provided pursuant to the t oportable occut tonee reporting r equirements as s et forth in 10CTR 50.73.

Occurrence  !

LicenteclunklieporLHwnber Date Title _of_0ccurt.ence .91-003 7/03/91 Over ternpuratus e Delta Ternporaturu Setpoint Scaling  !

Et tor due to design Doctunent ,

Deficiency.

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(0625M/0062M/7)

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l fr._ LICENSEE 3 VENT _.EEPORTS_(UNIT _1)

The following is a tabular simunary of all Licensee Event. Reports for Byron Nuclear Power Station, Unit One, submitted during the reporting period, August 1 through August 31, 1991. This information is provided pursuant to the reportable occurrence reporting requirements as set forth in 10CTR 50.73.

Occurrence LicenEte_Ivent_Feport. Number Date Title _oLDecurnace 91-003 7/03/91 Overtemperature Delta Temperature Setpulnt Scaling Error due to design Doctunent Deficiency.

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( 06 2 5M/ 30 6 2c.. ** i

I I . Monthlyle po rtlotiln calfMIL2do LLhC JDQnth_0 L AugMS.Ll921 A1___lWWar y _Q LDpt [ At lD9_3F pt 11 C HCelO LU n it_2 The unit began this reporting potlod in Mode 1 (Power Operation) and continued there all month. The power level varied due to load following requirements.

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a L___QEERAIING.JATAJEEORT DOCKET NO.: 050-455 UNIT: Byron Two DATE: 09/12/91 COMPILED BY: D. Ehle TELEPHONE: (815)234-5441 x2263 OPERATING STATUS

1. Reporting Period: August, 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):

THIS MONTH YR TO DATE CUMi%ATIVE*

5. Report Period Hrs. 744 5,831 35,328

6. Ex Critical Hours 744 5,U31 30,563.1 7.\ Rx Reserve Shutdown Hours 0 0 0

\

8. Hours Generator on Line 744 5,831 30,115.6 94 Unit Reserve Shutdown Hours 0 0 0

10. Gross Thermal Energy (MWH) 315,476 18,609,868 82,921,260

11. Gross Elec. Energy (MWH) 775,995 6,311,875 28,049,970 i

12. Net Elec. Energy (MWH) 734,852 5,997,765 26,402,094

13. Reactor Service Factor 100 100 86.51

14. Reactor Availability Factor 100 100 86.51

15. Unit Service Factor 100 100 85.25

16. Unit Availability Factor 100 100 85.25

17. Unit Capacity Factor (MDC net) 89.39 93.09 67.63

18. Unit Capacity Factor (DER not) 88.19 91.84 66.73

19. Unit Forced Outage Hrs. 0 0 886.4

20. Unit Fotced Outage Rate 0 0 2.86

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21. Shutdowns Scheduled Over Next 6 Months None

22. If SNutdown 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, k

(0625M/0062M/9)

C,_ AVE ltAG E_.D A I LL UN I T.EM EILL EV E L DOCKET NO.: 050-455 i UNIT Dyron Two DATE: 09/12/91 COMPILED DY: D. Ehle TELEPHONE: (815)234-5441 x2263 MONTil August, 1991 l

l DAY AV'4 RAGE DAll POWER LEVEL l (MWe-Net

1. _ _ _ _ J 020 MW ._. 16. 100LFM __

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2. lQhLW . __ 17. __1012 tM

3. 1031_Kd 18. _071.1M _.-._ _._ _ l l

4. 10.0 0 din 19. ._ 9 21_ FM_.- __

$. SALIM 21. .100_FM

6. ,_. 6 9 4 3M__ ._._ . _ _._ 21. ___ __10 4 L MW -

7. 95.4JiW 22. _101LMW

8. - _ _ __9 51. FM_.__ ___ 23. ___ ___1024 M(___ _____ _ l

9. 919_MR_ _ 24. ___8 9 LMW -_ _ _

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10. 01QJM _ _. 25. J1 LIM

11. BELIM 26, 122L}M

12. ._ 9 fl6_FDi_._ _ 27. 1015 MW

13. _ _ 100.9_MW 28. __lE4fL FM

14. 22LtM 29. 101LMH

15. .__. _ _1001J M._____ 30. ____ ._ _.._100 4 JM __._

31. 1023]M _

INSTRULuONS On this form list the average dally unit power level in MWe-Net for each day in the reportine, month. Compute to the nearest whole megawatt. These figures will be used t.o plot a graph for each reporting month. Note that when maximum dependable capecity is used for the net electrical rating of the unit there may be occasio).s when the daily average poser level exceeds the 100% line l

(or the restti:ted power level line.) In such cases the average daily unit

power output theet should be footnoted to explain the apparent anomaly.

l (0625M/0062M/10)

Report Period August, 1991 UNIT SH"JTDOWNS/ REDUCTIONS

• BYRON *

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

_Fo, Date Iygg Hours RRa1DR MethQd LER Number System Component Causg_& Corrective Action to Prevent Recurrence

• Summary

• TYPE Reason Me thod 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)

(0625M/0062M/ll)

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E.__ UNIQUE _. REPORTING _ REQUIREMENTS (UNIT 2)....for_the_ month of. August 1991

1. Safety / Relief valve operations for Unit Two.

VALVES NO & TYPE PLANT DESCRIPTION DATE ACTUATED AC'1 VAT 10H CONDLT'ON Of_ EVENT lione

2. Licensen generated changes to ODCM. (Y/N)

None.

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

Yen Fuel Reliability Indicator FR1 = 8.7E-4 pC1/cc New computational method accounts for 38% increasur value would be 6.3E-4 with old method.

(062SM/0062M/12)

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L.__11 CEN S E LEV EN LE E PORTS __I UNIL 21 The following is a-tabu:ar summary of all Licenseo Event Reports for Byr(in Nuclear Power Station, Unit Two, submitted during the reporting period, I August 1 through August 31, 1991. This information is provided purbuant to the reportable occurrence reporting requirements as sol forth in 10CFR 50.73, .

Occurrence Licensee _ Event _HeporLHumber Date Title _o LDecurrence None (0625M/0062M/13)

_ ._