ML20091E489

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Monthly Operating Repts for Dec 1991 for Byron Nuclear Power Station
ML20091E489
Person / Time
Site: Byron  Constellation icon.png
Issue date: 12/31/1991
From: Ehle D, Pleniewicz R
COMMONWEALTH EDISON CO.
To:
NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
References
BYRON-92-0024, BYRON-92-24, NUDOCS 9204140215
Download: ML20091E489 (14)
v • d • e


Text

/ - N -C mmonwrith Edison

,/ ) Byron Nuclear Station

.  ; u 7 4450 North Gerrnan Church Roao

\%- / Byron, illinois 01010 January 6, 1992 l

I LTR BYRON 92-0024 FILE: 2.7.200 l

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

C.) closed for your information in the Monthly Performance Report  ;

covering Byron Nuclear Power Station for the period December 1 through December 31, 19 M .

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Sincerely, Station Manager ',/

Byron Nuclear Power ' Station RP/DE/bl (3767M/VC) cc A.B. Davis, NRC, Region III NRC Resident Inapector Byron Ill. Dept. of Nuclear Safety M. J. Wallace/E. D. Eenigenburg Nuclear Licensing Manager Nuclear Fuel Servicer, PWR Plant Support D. R. Eggett, Station Nuclear Engineering INPO Records Center A. Hsia - USNRC F. Yost - Utility Data Institute, Inc.

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9204140215 911231 4 DR ADOCK 0500 y 7

BYRON NUCLEAR POWER STATION UNIT 1 AND UNIT 2 MONTilLY PERFORMANCE REPORT ,

COMMONWEALTH EDISON COMPANY NRC DOCKET NO. 050-454 NRC DOCKET NO. 050-455 LICENSE NO. HPF-37 LICENSE NO. NPF-66 P

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(3767M/VS/1)

I. Mnnthly_Rosct_InL_Dyron_UNII_1_ fat.1he month of December 1991 A ufmmmnEy_n L_Dparating_IKpellence__isLNail_1 The unit began this reporting' period in Mode 1 (Power Operation) and continued there all month. The power level varied due to load followi>g requirements.

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D2_iDFIRAIlt4G DATA _ REPORT DOCKET HO.: 050-454 UNIT: Byron One DATE: 01/06/92-COMPILED BY: D. Ehle TELEPHONE: (815)234-5441 x2263 OPERATING STATUS

1. Reporting Periods- December, 1991. Gross Hours: 744 g

-2. Currently Authorized-Power Level 3411 (MWt) o' Design Electrical Rating: 1175 (MWe-gross)

Design Electrical Rating: 1120 (MWe-net)

Max Dependable Cepacityr'1105 (MWe-net)

3. _ Power Level-to Which Restricted (If Any): None 4.. Reasons for Restriction (If Any): h/A THIS MONTH YR TO DATE CUMULATIVE *
5. _ Report Period-Hrs. 744 8,760 L5,153
6. Rx Critical Hours 744 7,242.7 44,926.9 7.- s- Reserve Shutdown Hours 0 0 3G
8. Hours Generator on Line 744 -7,148.3 44,303.9 9 .' Unit Reserve' Shutdown Hours O G 0-
  • 10. Gross Thexnal Energy (MWH)- 2,400,177 19,930,976 132,803,580
11. Gross Elec. Energy .(MWH) 815,562 6,692,169 44,773,249
12. Net-Elec. Energy (MWH) -777,885 6,307,232 42,219,497
13. Reactor Service Factor 100.00 82.68 81.46
14. Reactor Availability Factor. -100.00 82.68 81.53'
15. Unit Service Facter 100.00 01.60 80.33 16.-Unit Availability Factvr 100.00 81.60 80.33
17. Unit Capacity Factor (MDC net) 94.62 05.16 69.28 l 18. Unit Capacity Factor-(den net) 93.35 64.29 68.35
19. Unit Forced. Outage Hrs. 0 -76.1 1,342.5 20.-Unit Forced Outage Rate 0 1.05 2'.94

.21. Shutdowns Scheduled Over Next 6 Months: N/A

22. If Shutdown at End of Report Period, Estimated Date of Startup: 'N/A

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

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  • . Note - The cumulative numbe s do not reflect-power L

generated _pr*,or to commercial service.

L (3767M/VS/3) w-g

C. MLEEAGE._DAlLX.3Rl*[._ECMEB _LERL DOCKET NO.: 050-454 UNIT: Byron One DATE: 01/06/92 COMPILED BY: D. Ehle TELEPHONE: (815)234-5441 x2263 MONTH: December, 1991 DAY AVERAGE DAILY POWER LEVEL (MWe-Net)

1. 1Qfii_1M 16. 1058 MW
2. 1010_14W __ 17 U 10_Kd
3. .

1068 FM 18. 1083 Kd

4. 1045 MW 19. 1078 MW 5, 1077 MW lo. 1.169 MW 6, 1031._tf(, 21. 1050 MW
7. 1031 MW 22, 1059 MW kEt
8. 942 MW 23, 1040 MW '

9, 1059 MW 24. _LQfi3 MW

10. 10.13 MW 25, 1022 bN 11, 1011 MW 2 6 . ___ 1045 MW 12, 1013 MW 27._, 1102 MW
13. 970 MW __

2 8 . _,, 1094 MW 14, 1019 MW 29. 1033_MW 15 992 MW '5 0 . 1003 MW

31. 1061 MW INSTRUCTIWS 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 maximum dependable capacity is used for the net electrical rating of the unit tnere 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 r ootnoted to ex' plain the apparent anomaly.

(3767M/VS/4)

BYRCN

  • UNIT SHUTDOWNS / REDUCTIONS .*

1eport Period December, 1991 **************************

(UNIT 1)

Date Tvoe Hagra Reason Method ___LER Number System Component Cause & Corrective Action to Prevent Recurrence No.

No Shutdowns or major reductions for Unit 1.

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O Summary *

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Method SySigm & Comp _gnent __

TYPE Renop t

1-Manual Exhibit F & H F-Forced A-Equip Failure F-Admin Instructions for B-Maint or Test G-Oper Error 2-Manual Scram S-Sched Preparation of C-Refueling H-Other 3-Auto Scram 4-Continued Data Entry Sheet D-Regulatory Restriction Licensee Event Report E-Operator Training 5-Reduced Load

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

(3757M/VS/S)

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Tu.__ UR100E REPORIIRG__EEQUIREMENTS (UNIT __11_EQLthe_ month nLHerember 1991

1. Safety / Relief ve'.ve operations for Unit One.

VALVES NO & TYPE PLANT DESCRIP". ION DATE ACIVATED AGbATION COND1210H RE_EEERT None

2. Licensee generated changes to ODCH.

None.

3. Indications of failed fuel.

Fuel Reliability Indicator:

Yes FRIt 1.1E-2 pCi/cc

4. 10CFR50.46 Reporting Requirements: Peak Clad temperature (PCT) changes resulting from change or errors to the ECCS evaluation model.

Current licensing basis FCT plus margin allocation (*F)

Lage_BI.eALLQCA Small_BrenLLOCA ,

2051.3 1510.1

  • Explain differences from previous report:

None e

(3767M/VS/6)

R J INSEI_E M T REPSRTS (UNIT _11 The following is a tabular summary of all Licensee Event Reports for Byron Nuclear Power Station, Unit One, subnitte.d during the reporting period, December 1 through December 31, 1991. This information is provided pursuant to the reportable occurrence reporting requirements as set forth in 10CFR 50.73.

Occurrence Licennet.Iygst Report fumber Ibialt Title of Occyigene_g 91-006 11 14-91 Emergency Diesel Generatir Inoperable.

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II . Monthly _Reporifor_ByI_un_Ull17_l_loI_.the_nonth__oLDerember_1191 A. S umm atty _of_Opf ; atingl KP_ellencs_fa r_llai.t._2 The unit began the reproting period in Mode 1 (Powar Operation) and continued there all month. The power level varied due to load following requirements.

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.Dj .. OPERATING-DATA _RIPORT V' .-..

DOCKET NO. 050-455 2

UNIT: Byron Two DATE: 01/06/92 COMPILED BY - D. Ehic TELEPHONE: (815)234-5441 x2263

' OPERATING STA7US

1. Reporting Periods. Dect .nbe r , 1991. Gross Hours: 744 f2. Currently Authorized PJwer Levels.3411 (MWt)
Design Elect'ical r Ratings.1275- (MWe-gross)

Design Electrical Rating: 1120 (MAc aet)

Max Dependable' Capacity: 1103 (MWe-net) '

J3. Power Level to WhichLRestricted (If Any). N/A

4. Eeasons for Restriction (If Anyf THIS MONTH YR TO DATE CtMULATIVE* -
5. Report 1 Period Hrs. 744 8,760 38,257 6.c Rx Critical Hours 744 8,502 '33,234.1 ,

. -7. -Rx Reserve Shutdown Hours 0- 0 0 p :8. Hours Generator on Line' 744 8,490.5 32,775.1

.9. Unit Roserve Shutdown Hours 0 0 0 3: 10.JGross Thermal. Energy (MWH) .2,455,371 27,207,328 91,518,720 L. 11.LGross;Elec. Energy-(MWH) .833,346 9,218,674 30,956,769 112. Het.Elec. Energy (MAH) 705,507 8,772,679 29,177,008 d

=13.. Reactor Service factor 100.00 97.05 86.87

14. Leactor' Availability Factor 106.00 97.05 86.87 115. ' Unit Service Factor . 100.00- 96.92 85.67-

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'16. Unit Availability Factor 100'.00 96.92 85.67

17. .dcit-Capacity Factor (MDT net) 96.76- 90.03. 69.02:
E l 18. Uniticapacity Factor-(DER' net) 95.47 89.41 68.02' l 19. Unit' Forced ~ Outage Hrs.

0 269.5 1155.9

20. Unit Forced Outage Rate-- 0 3.08 .3.41 L -L21. Shutdowns Scheduled Over Next 6 Months: Unit 2 third refuel outage, s
22. IfEShutdown at End:of Report Period, Estimated Date of Startup:

L23.1 Units in' Tost-Status (Priot-to Commercial Operation): Nono l

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  • Note - The cumulative' numbers do not reflect power l'

' generated prior to ' commercial service.

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i A J RAGE._ DAILY UNIT PO W EEEL-DOCKET NO. 050-455 UNIT: Byron Two DATE: 01/06/92-COMPILED BY: :D. Ehle ,

TELEPHONE: (815)234-6441 x2263 MONTH:- December, 1991

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Y  : DAY AVERAGE !)AILY POWER LEVEL (MWe -Ne t )

1. 2 005 M'd __

1.5 . -1067 MW

2. 1Q7), MW 17. ~ 1058 Rf4
3. 1079 MW 18. 1082 MW 4 '. . 1088 MW 19. 1081 MW
5. _, 1057 MW- 20. 1067 MW
6. 1058 MW 21. 1056 MW

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.. -1013 Ed 22, 1066 MW

.8. 982 MW 23, 1077 MW-

9. _. 1025 MW 24. 1105 W4 _.
10. _ 1098 MW 25. 1106 MW
11. 1100-MW _
26. 1103 MW
12. _lqQI-MW 27 . ,, 1106 MW ,

, 13. 103_7 MW .- '28.- '11QD._MW :

- 14 . - 1015 MW 29 1107 MW l'i , 1060 MW 30.. 1108 M}f 3 2. . 1108 MW INSTRUCTIONS-

.On this form list the' average daily unit power le'rC .n MWe-Net for each day-

~1n the-repotting month. Compute to the nearest whole megawatt. These figures

.will be'used to plet a graph for each reporting. month..; Note '. hat when maximum

' dependable capacity is used for the net 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.

( 3? 6711/VS/10)

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' Report Period December, 1991 UNIT SHUTDOWNS / REDUCTIONS t BYRON *

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

  • _RL_.. _Itate___ Iyge ours Reason tiethqd LER Number System Component __ Cause & Corrective Action to Prevent RecurySpee No Shutdowns or major reduction.s for Unit 2.
    • e**e*********
  • Summary *
      • A***********

IXEE Reasan ~Hetimd _ _. Sydtem_Il cmpomen t F- Fo rced A-Equip Failure F-Admin 1-Manual Exhibit T & H S-3cdc4 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-Oontinued Data Entry Sheet E-Operator Training 5-2 educed Load Licensee Event Report

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

(3767M/VS/11) 2 l

EJ10UI EEEDETING REWlEf2iENIS_LUMIT 2) for_themonth of DarembnI_19.91

1. Safety / Relief valve operations for Unit Two.

VALVES NO & TYPE PLANT DESCRIPTION DATE ACTUATED AC211AT10ti CWDlTlW OI fv1NT None

2. Licensee generated cLnges to ODCM.

None.

3. Indications of failed fuel.

Yes Fuel Reliability Indicator FRI :: 1.2E-3 pCi/cc 4, 10CFR50.46 Reporting Requirements: Peak Clad temperature (PCT) changes tesulting from changes or errors to the ECCS evaluations model.

Current licensing basis PCT plus major allocations (*F)

Large BI.gak LOCA Small Break LOCA 2064.1 1510.1 Explain differences from previous report:

None 0

(3767M/VS/12)

4 P. - - LLCINEEL_IYElfLFIEORTS_LUNIT_31 The fellowing is a tabular summary of all Licensee Event Reports for

. Byron Nuclear Power Station, Unit Two, submitted during..the reporting period, December 1 through. December 31, 1991. This information it. provided pursuant to the reportable occurrence reporting requirements as set forth in 10CFR 50.73.

Occurrence LICangre Event Report Number Date Title of,Occurrengg 91-005 11-07-91 Unit 2 reactor trip on low 2 Steam Generator Lovel.

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