ML20154F085

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Monthly Operating Repts for Aug 1988 for Byron Nuclear Power Station
ML20154F085
Person / Time
Site: Byron  Constellation icon.png
Issue date: 08/31/1988
From: Pleniewicz R, Spitzer D
COMMONWEALTH EDISON CO.
To:
NRC OFFICE OF ADMINISTRATION & RESOURCES MANAGEMENT (ARM)
References
BYRON-88-0954, BYRON-88-954, NUDOCS 8809190247
Download: ML20154F085 (14)
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i BYRON NUCLEAR PONER STATIOM UNIT 1 AND UNIT 2 MONTHLY PERTORMANCE REPORT CODNOtmCALTH EDISON COMPANY

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NRC DOCKET 110. 050-454 NRC DOCKET NO. 050-455 LICENSE NO. NPF-37 LICENSE NO. NPF-66 ,

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PDR ADOCK 05000454  !

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c (0625M/0062M-2)

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! I. Monthly Report . fat. Byron _. Unit .1.for. tht_Ronth of August 191Jt, [

i A. .. Summary _.sLpperating Experlenes ,for _ Unit i The unit began this reporting period in Mode 1 at 92% power. The unit

, operated at power levels of up to 98% until 8/4/88 at 004*/ when a reactor trip occurred (grid stability trip). The reactor was taken critical at j 1902 on 8/4/88 and synchronised to the grid at 0208 on 8/5/88. The unit  ;

4 operated at power levels of up to 98% for the rest of the reporting period.

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(0625N/0062M-3)

h_. OPERATING DATA REPORT DOCKET NO. 050-454 UNIT: Byron One DATE: 09/10/88 COMPILED BY: D. J. Spitzer TELEPHONE: (61S)234-5441 x2023 OPERAT?i30 STATUS

1. Reporting Period: August 1988. Gross Hours 744
2. Currently Authorised Power Level 3411 (MWt)

Design Electrical Rating: 11/5 (MWe-gross)

Design Electrical Rating: 1120 (Hhe-net) ,

Max Dependable Capacity: 1105 (MWe-net)

3. Power Level to Which Restricted (If Any): 1097 (MWe-net)
4. Reasons for Restriction (If Any): Steam Generator Split Flow (23MW) .

l THIS MONTH YR TO DATE CUMULATIVE *

5. Report Period Hrs. 744 5855 25944 l 6. Rx Critical Hours 725.7 5125.7 20437.7
7. Rx Reserve Shutdown Hours 0 0 37.8 i
8. Hours Generator on Line 718 6 5094.7 20055.7
9. Unit Reserve Shutdown Hours 0 0 0
10. Gross Thermal Energy (MWH) 2116529 16000060 59595910
11. Gross Elec. Energy (MWH) 786919 5359514 19985291
11. Net Elec. Energy (MWH) 745469 5060295 18799772  !
13. Acactor Service Factor 9/.5 87.5 78.8
14. Reactor Availability Tactor 97.5 87.5 78.9
15. Unit Service Factor 96.6 87.0 77.3 i
16. Unit Availability Tactor 96.6 87.0 77.3
17. Unit Capacity Factor (MDC not) 90.7 78.2 65.6 ,
18. Unit Capacity rector (DER net) 89.5 77.2 64.7
19. Unit Forced Outage Mrs. 25.4 122.5 1034.6
20. Unit Forced Outage Rate 3.4 2.3 4.9  !

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21. Shutdowns Scheduled Over Next 6 Months 09/03/88 i
22. If Shutdown at End of Report Period, Estirieted Date of Startups f 6
23. Units in Test Status (Prior to Commercial Operation): None l

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  • Note - The cumulati're numbers do not reflect p4wer generated prior to commercial  !

service. >

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(0625M/0062H-4) l ._ ,___ - _ ---- -- - - _

c. EVERAct_DA2LY UNIT POWER LEVEL DOCKET NO. 050-454 UNIT Byron One DATE: 09/10/88 COMPILED Bt D. J. Spitzer TELEPHCHE: (815)234-5441  :

x2023 MONTH: August, 1988 DAY AVERAGE DAILY POWE3 LEVEL (MWe-Net) '

1. 1044 MW 16. 1068 MW
2. 1073 MW 17. 1064 MW ,
3. 1074 MW 18. 1050 MW ,__
4. 12_MW 19. loss WW
5. 3 80 MW 20. .1086 WW  ;
6. 728 MW 21, 1083 WW I l
7. 1042 MW 22. 1084 WW f 8. 1076 WW 23. 1083 WW
9. 1082 MW 24. 1085 MW l

l 10, 1031.MW 25, 1087 MW

11. 1049 MW 26. 1090 MW I l l
12. 1068 MW 27. 1086 MW
13. 1067 MW 28. 1086 MW  :
14. loss MW 29. 1066 MW I
15. 1071 WW 30. 1103 MW __.

l 31. 1036 MW j INSTRUCTIONS On this form list the average daily unit power level in MWe-Net for each day 1 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 not electrical rating of the unit there  !

i may be occasions when the daily average power level exceeds the 100% line (or t the restricted power level line.) In such cases the average daily unit power output shee"; should be footnoted to explain the apparent anomaly. ,

(0625M/0062M-5) l

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

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R port Period August, 1988 UNIT SHUTDOtetS/REDUCTICMS

  • BTRON * * *

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

) Date Typt._ Hours Reason Method f r* M-her Syse== C m annt cause & Corrective Action to Prevent Recurrence

10. 08/04/88 F 25.4 A 3 88-005-00 Ar Offsite electrical distribution unit stability trip caused main generator to trip, resulting in a turbine trip causing a reactor trip.

ococo.........s o S -mary

  • 0C.00..........

TYPE Reason Methad System & C - nent 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-Refus11ag H-Other 3-Auto Scram Preparation of D-Regulatory 3estriction 4-Continued Data Entry Sheet E-operator Training 5-Reduced Load Licensee Event Report

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

(0325N/0062M-6) l i

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. l E. UNIout REPORTIN'3_.RgournEuzNTs (UNIT 1) for the month of Auaust 1988 i

1. Safety /Relhof valve operations for Unit One.

VALVES NO & MPE PLANT DESCRIPTION DAIE AC"IUATED ACTUATION CQlDITICal OF EVENT '

None i

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

No L P

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

Yes. I 131 = 4.5E-3 pcuries/gr. '

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T...LICElllEE EVENT REPORTS (UNIT ll The following is a tabular sumnary of all Licensee Event Reports for Byron Nuclear Power Station, Unit One, submitted during the reporting period, August 1 through August 31, 1988. This information is provided ?ursuant to the reportable occurrence reporting requirements as set forth in 10CFR 50.73.

Occurrence Ligansee Event Report Ni=her DAtt Title of Occurrence 88-004 00 07/16/88 Tachometer Failure Caused Overspeed Trip of Main reed Pump, Resulting in a Reactor Trip 88-005-00 08/04/88 Main Generator Stability Trip I

Caused by Microwave Noise Resulting in a Reactor Trip i

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4 Ile ggnthly Reggrt for Byron Unit 2 for the raanth of August 1988 A. S -ary of Onaratina Emnerience for Unit 2 The unit began this reporting period in Mode 1 at 75% power. The unit operated at power levels of up to 95% until 8/7/88 when a load

! reduction, for line stability, occurred. The unit operated at power l 1evels of up to 87% for the rest of the reporting period.

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(0625M/0062M-9)

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'B . OPreATIht! DATA REPORT DOCKET NO. 050-455 UNIT: Byron Two DATE: 09/10/88 COMPILED BY D. J. Spitser TELEPHONE: (815)234-5441 x2023 OPERATING STATUS ,

1. Reporting Parlod August 1988. Gross Hours: 744
2. Currently Authorised Power Levels 3411 (MWt) L Desiga Electrical Rating: 1175 (MWe-gross)  !

Design Electrical Rating: 1120 (MWe-not)

Man Dependable Capacity: 1105 (MWe-not)

3. Power Level to which Restricted (If Any): 1055 (MWe-not) *
4. Reasons for Restriction (If Any): Steam Generator Split Flow. (65 MW)

THIS MONTH YR TO DATE CUMULATIVE 8

5. Report Period Hrs. 744 5855 9048
6. Rx Critical Hours 744 5761.9 8091.1
7. Rs Reserve Shutdowr Hours 0 0 0
8. Hours Generator on Line 744 5511.2 ~/91.6
9. Unit Reserve Shutdown Hours 0 0 0
10. Gross Thermal gnergy (MWH) 1696191 15498916 21971080
11. Gross Elec. Energy (MWH) 570435 5205408 7309719
12. Net Elec. Energy (MWM) 533256 4904629 6875530

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13. Reacsor Service Factor 100 98.4 89.4 j
14. Reactor Availability Tactor 100 98.4 80.4 !
15. Lait Service Factor 100 94.1 86.1
16. snit Availability Factor 100 94.1 86.1 (
17. Unit Capacity Tactor (MDC not) 64.9 75.8 68.8

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18. Unit Capacity Factor (DER not) 64.0 74.8 67.8 j
19. Unit Forced Dutage Mrs. 0 156.2 443.2 l
20. Unit Forced Outage Rate 0 2.7 5.4 f
21. Shutdowns Scheduled Over Next 6 Months: 1/7/89 [

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22. If Shutdown at End of Report Period, Estimated Date of Startups l
23. Units in Test Status (Prior to Commercial Operation): None  ;

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  • Note - The cumulative numbers do not reflect power generated prior to commercial j rervice. t i

(0625M/0062M-10)

c. AY1EAGE._ DAILY UNIT POWER LEVEL DOCKET NO. 050-453 UNIT Byron Two DATE: 09/10/88 COMPILED BY D. J. Spitser TELEPHONE: (815)234-5141 x2023 MONTH: August, 1988 DAY AbERAGE DAILY POWER LEVEL (MWe-Net)
1. 907 MW 16. 95s WW
2. 1045 MW 17. 954 MW
3. 1047 MW 18. 926 MW
4. 1037 MW 19. 861 MW
5. 1Q50 MW 20. 814 MW
6. 1023 WW 21, 641 WW
7. 739 MW 22, 664 MW
8. 833 MW 23, 310 MW
9. 839 MW 24, 309 WW
10. 836 MW 25. 310 MW
11. 866 WW 26. 313 WW 12, 907 MW 27. 280 WW
13. 952 MW 28. 254 MW ,
14. 869 MW 29. 252 MW
15. 920 MW 30. 241 Nw
31. 248 MW 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 will be used to plot a graph for each reporting month. Note that when m<simum dependable capacity is used for the not electrica*. 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-11)

                  • eeeee**eeeeeeeeen Report Period August, 1988 UNIT SHUTDOWNS / REDUCTIONS
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(UNIT 2) *********************e****

  • Mo. Date Ms Hours Reason Method LER Mumber System Component C=<e & Corrective Action to Prevent Recurrente
16. 08/07/88 N/A A 5 Line 15501 - Line open Stability Trip Disabled ee*****eeeeeeee o Summary
  • oceoceeeeeeeee.

TYPE Reason Meth^d System &CS nent 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-Refuellag B-Other 3-Auto Scram Preparation of D-Regulatory Restriction 4-Continued Data Entry Sheet E-Operator Training 5-Reduced Load Licensee Event Report

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

(0325M/0062M-12)

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4 E. UNIQUE REPORTING REQUIREMENTS (UNIT 2) for the month of Aucunt 1988

1. Safety / Relief valve operations for Unit Two.

VALVES NO & TYPE PLANT DESCRIPTION  ;

DATE ACTUATED ACWATICM CCMDITICM QF EVENT  ;

None I

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2. Licensee generated changes to ODCM. (Y/N) f No I I

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

Yes. No steady stato data, r.

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(0625M/0062M-13) 1 i

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LICEMBEE EVENT REPORTE fUNIT U The following is a tabular summary of all Licensee Event Reports for Byron Nuclear Power Station, Unit Two, subrnitted during the reporting period, August 1 through August 31, 1988. This information is provided pursuant to the reportable occurrence reporting requirements as set forth in 10CFR 50.73.

i Occurrence 4

4 Liggggem Event Report NumhgI W Title of Occurrengs 88-009-00 07/15/88 Thermal Binding of Steam Generator Preheater Bypass Valves Resulting in Low Steam Generator Level Reactor Trip I 88-010-00 07/27/88 Exceeded Technics 1 l Specification Sample Interval for Inoperable Radiation Monitor Due to Personnel Error i

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  • 4 ' . ' x Commoncrith Edison

/ Byron Nuct:ar St: tion

! ') 4450 North G:rman Church Road

- 7 Byron, Illinois 61010

%j September 10, 1988 Director, Office of Management Information and Program Control United States Nuclear Regulatory Commission Washington, D.C. 20555 AT111: Document Control Desk Gentlemen Enclosed for ycur information is the Monthly Pe r f o rmance Report covering Byron Nuclear Power Station for the period August 1 through August 31, 1988.

Sincerely, he- --

R. Pleniewies Station Manager Byron Nuclear Power Station cci A.B. Davis, NRC, Region III NRC Resident Inspector Byron Gary Wright, Ill. Dept. of Nuclear Safety T.J. Malman/K.L. Graesser H. E. Bliss Nuclear Fuel Services, PWR Plant Support L. Anastasia, Station Nuclear Engineering INPO Records Center L. Olshan - USNRC LTR DYRON 88-0954 FILE: 2.7.200 (0625M/0062H-1) \

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