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April 10, 1989BH/89-433

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Directer, Office of Resource Hanagementlinited States Nuclear Regulatory ComissionWashington, D.C. 20555

AllN: EcCument Control Desk

Gentleten:

Enclosed for your information is the Monthly PerformanceReport covering Braidwood Nuclear Power Station for the periodMarch I thrcugh March 31, 1989.

Very truly yours,

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i

R. E. catioStation Hanager-

Braidwood Nuclear Station

REQ /PMB/jati(4957z) .

At t ac h.*nent s

cc: A. B. Davi s , NI<C, Region 12NRC Resident Inspector BraidwoodGary Wright, Ill. Dept. of Nuclear SafetyT. J. Haiman(. t.. GraesserT. J. KovachNuclear Fuel Services, PHR Plant Support1NPO Records CenterPerfor:rance Monitoring Group, Tech Staff Braidwood StationNetlear Group, Tech Staff Braidwood StationS Sands - USNRCS. C. b ntaderProductiun Services

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BRAIDHOOD NUCLEAR POWER STATION

UNIT 1 AND UNIT 2

MONTHLY PERFORMANCE REPORT

COHHONHEALTH EDISON COMPANY,

HRC DOCKE,T NO. 050-456, LICENSE NO. NPF-72

NRC DOCKET NO. 050-457, LICENSE NO. NPF-77

(49572/2)

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. . .4J B. ORER&UNG_DALA._.REEQBI DOCKEi NO.: 50-456

UNIT: Braidwood 1DATE: 04/10/89-

00MPILE0!8Y: H. W. Petersen.

TELEPHONE: (815)458-2801ext. 2480

~ OPERATING STATUS

1. Reporting Period: Harch, 1989 Gross Hours: 744.0

2. Currently Authorized Power Level (MWt): 3411Design Electrical. Rating (MWe-gross): 1175Design Electrical Riting (MHe-net): 1120Max Dependable Capacity (HWe-gross): 1175Max Dependable Capacity (MWe-net): 1120

3. Power level to which restricted (If Any): 937,

4. Reasons for restriction (If Any): Power limitations due to the-#4-Governor valve being closed andexcessive motsture carryover.

THIS MONTH -YR TO DAIE_ CUMULAlly[5. Report period Hours: 7ALO._. _2160 a _. ssB9.06. Hours fleactor Critical: _.llL1__ _ _ 16 1 8 d _. _5158 87. RX Reserve Shutdown Hours: 0.0 __010_ _ 0.0 _8. Hours Generator on Line: _ 195.5__ .._1610.9_ _5022 a _9. Unit Reserve Shutdown Hours: 0. 0__ _0,0_ 0 ,_0__

10. Gross Thermal O.ergy (MWH): ._207.9158 _ _6302010_. 1667247211. Gross Elec. Energy (MWH): _ 723700 1719B32 _310B19 L12. Net Elec. Energy (MWH); _693530_ _1_641687 506591113. Reactor Service factor: _ _.9E._9 _ 76 l _ 87.614. Reactor Availability Factor: 9L1_ 7 1 d ,_ SLj_15. Unit Service Factor: 9 3 . 5._. ._.___ILE_ 481u _16. Unit Availability Factor: __ 93.5_ 74.8 _ __ .. 8 L4_17. Unit Capacity Factor (MDC net): BLL_. _6L 9_. 7 h B._ ,18. Unit Capacity factor (DER net): ___j h2_. 67.9 76.819. Unit forced Outage Rate: 6.5 2 . 9_ 6.820. Unit forced Outage Hours: 48.5 48.5 _ 36L5_.21. Shutdowns Scheduled Over Next 6 Honths: - I week outage to replace

governor valve- Refueling Outage September 1989

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

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C. AVERAGE C31LL1MILMIEY111LVEL LQG DOCKET NO.: 50-456.

UNIT: Braldwood 1DATE: 04/10/89 i.

COMPILED BY: H. H. PetersonTELEPHONE: (815)458 2801

ext. 2480

HONTH: W rch, 1969I

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14. -. 1058 - _ 30. _. 1048 . _ . _

15. . 1067 . _ _ . _ _ _ . 31. 1077 _ _ _ . _ _ _

16. ._106L

INSTRUCTIONS

On this foam list the average daily unit power level in MHe-Net for eachday 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 electricalrating of the Unit there may be occasions when the daily average powerlevel exceeds the 100*1 line (or the restricted power level line). Insuch cases the average daily unit power output sheet should be footnotedto explain the apparent anomaly.

(49572/5)

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I+ liflN.SEE.IVENilLEORIS_. _U!ill_1

'The following is a tabular summary of all Licensee Event Reportssubmitted during the reporting period, March 1 through March 31, 1989.This information is provided pursuant to the reportable occurrencereportirg requirements as set forth in 10 CFR 50.73.

LiIenste Eveat RepoL1

EikD.LL Ntmber 211g Title of Qcturrence

89-001-00 02/27/89 Reactor Trip due to Spurious Lossof Output Voltage on InstrumentInverter 112,

89-001-01 03/07/89 Reactor Trip due to Spurious Lossof Output Voltage on instrumentInverter 112.

89-003-00 03/28/89 Containment Ventilation, FuelHandling Ventilation. Control RoomVenttiation Actuations due toMomentary Loss of' Voltage to theirAssociated Radiation Monitors.

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04'2G 'ES 11:29 iC.785 POO4<015

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4

I. Monthly P.eport for Braidwood Unit 1

A. Suqu ry of_Dptr3 ti_pg_Luptrijncg,

The unit entered the month at approximately 971, power.Power operation continued until March 6,1989, when anautomatic f<eetter Trip occurred during the performance ofa turbine surveillance caused by a defective test switch.A Nuclear Work Request was written to replace thedefective test switch during the upcoming outage. Theuntt was returned to service on March 8, 1989. Powercperation continued through the end of the month.

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(4957z/?)

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'Ov26/89 11j32- NO.795 PO11/015 R

t.- ' B. 'OfER6IIM.0A1AJEE911 DOCKET NO.: .50 457.

> ' * - UNIT: Braldwood 2DATE: 04/10/89

,

COMPILED BY: H. H. Peterson I.

- TELEPHONE: (815)458-2801. . ext. 2480

OPERATING STATUS

1. Reporting Period: March, 1989 Gross Hours: 672.0

-2. Currently Authorl2ed Power Level (HWt):, 3411Design Electrical Rating (HHe-gross): 1175 i

Design Electrical Hating (HWe-net): 1120Max Dependable Capacity (MWe-gross): 1175Hax Dependable Capacity (HWe-net): 1120

| 3. Power level to which restricted (If Any): None'

,

4. Reasons for restriction (If Any): None

THIS H0tGil YR TO DATE CUNJLATIVE5. Report period Hours: 744.0 .l160.0..._ _31ZL.Q _6. Hours Reactor Critical: 139.3 1126 9 ZsA_4d_ I

7. RX Reserve Shutdown Hours: 0.0.... _ 0.0 010 _ .8. Hours Generator on Line: 12 9. 0 ._, ..H] 5. 5 1592,jL,_9. Unit Reserve Shutdown Hours: ___0A__ 0.0 0.0

- 10. - Gross Thermal Energy (HHH): 303269 2222Q43 2,319ffL11. Gross Elec. Energy (MHH): _ 102625 _ H 102f2__ 256045412. Net'Elec. Energy (HWH): _21526 _ 1076024 242696413. -Reactor Service factor: 18.7 ,__3 2,2_ 66.6 j14. Reactor Availability Factor: 18.7 52.2 _

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15. Unit Service Factor: 1 L3_. 51.6.16. Unit Availability Tactor: 17.3 .-_ 5].6 . 65,3__17. Unit Capacity factor (MDC net): 11.0 _ 44.5 .._54a 6__18. Ur.it Capact ty Factor (DER net): 11.0 ._ 44 5 54.619.- Uni: Forced Outage Rate: 0 0 11.4 i

20. Unit Forced Outage Hours: 0 0 333.621. Shuto wns Scheduled Over Next 6 Honths:

.- . . . . - . . . - . . - . . - . . -

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C. 6YEEAGLOMLY_ UNIT NET POWER _LIELLQG DOCKET NO.. 50-457UNIT: Braidwood 2DATE: 04/10/89

COMPILED SY: H. W. PetersonTELEPHONE: (815)458-2801

ext. 2480

HONTH: March, 1969

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15. ______.-11 _ 31. 1154 _

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INSTPUCTIGNS

On this form list the average daily unit power level in HWe-Net for eachday in the reporting month. Compute to the nearest whole megawatt.These figares will be used to plot a graph for each reporting month.Note that when maximum dependable capacity is used for the net electricalrating of the unit there may be occasions when the daily average powerlevel exceeds the 1001 line (or the restricted power level Itne). Insuch cases the average daily unit power output sheet should be footnotedto explain the apparent anomaly.

(4957z/II)

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04/26, E 11:33 tC 785 P014'019

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F. List,hM[ [V,(N] REPORTL ,lLNLT_2

Tha following is a tabular scramary of all Licensee Event Reportssubmitted during the reporting period, March I through March 31, 1989This information is provided pursuant to the reportable occurrencereporting requirements as set forth in 10 CFR 50.73.

Lliffiti [yent PercrtEf;|tcC.t MumbfL QA.tk Iltle of Ocrifftence

89-001-00 03/17/89 Loss of 2B Residual Heat RemovalLoop as a Result of ProceduralDeficiency.

(49572/14)

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III Honthly Report for Braldwood Unit 2

A. $ we n n gL Oggn tingJ WperignJg

The unit entered the month shut down as the result of theScheduled Surveillance Outage. Outage work was cornoleted,and the ontt was returned to service on March 25. 1989.Power operation continued through the snd of the month.

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(4957z/9)

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