ML20070A572

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Monthly Operating Repts for Dec 1990 for Byron Nuclear Power Station,Units 1 & 2
ML20070A572
Person / Time
Site: Byron  Constellation icon.png
Issue date: 12/31/1990
From: Orris K, Pleniewicz R
COMMONWEALTH EDISON CO.
To:
NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
References
BYRON-91-0034, BYRON-91-34, NUDOCS 9101230221
Download: ML20070A572 (14)
v • d • e


Text

x C:mm:nwrith Edis:n g Byron Nuclear Station

, i _ f 4450 North Gerrnan Church Road

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/ Dyron. Illinois 01010 y_j January 10, 1991 l LTR DYROtt 91-0034 FILE: 2.7.200 Director, Office of Management Information and Program Control United States fluelear Regu16 tory Commission Washington, D.C. 20555 ATT!!: Document Control Desk Gentlemen Enclosed for your information is the Monthly Performance Report covering Dyron Nuclear Power Station for the period December 1 through December 31, 1990.

Sineerely,

..-/ 0

%L.., (Q@-- - - ~ f ,'

R. Plenlewicz /

Station Manager #

Dyron fluclear Power Station RP/K0/ mew (0625)/0062M) cci A.D. Davis, NRC, Region III IIRC Resident Inspector Dyron Ill. Dept. of Nuclear Safety M. J. Wallace/K.L. Graesser Nuclear Licensing Manager Nuclear Fuel Services, PWR Plant Support D. R. Eggett, Station fluclear Engineeting INPO Recorda Center A. Ilsla - USNRC l

9101230221 901231 4 F;DR ADOCK 0500 h

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BYROt1 NUCLEAR POWER STATIOli l

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UNIT 1 AND UNIT 2 Mot 1TilLY PERFORMANCE REPORT COMMONWEALTil EDISO!1 COMPANY NRC DOCKET NO. 050-454 NRC DOCKET NO. 050-455 LICENSE NO. HPF-37 LICENSL NO. NPT-65  !

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  1. 4 I' NORthlY AtPDLLIDI_Dyto1LUli1T 1 fDr theapnth Cagggggp,gg A* Sunnary_.oLopstatinglxperience lor _UniL1 The unit began this reporting period in Mode 1 (Power Operation) at approximately 95% power. On December 3, 1990 during performance of the
  • Slave Relay Surveillance an actual feedwater isolation signal was generated causing a loss of feedwater. A reactor trip on Low-2 S/G 1evel ensued. The unit was back on line December 5,1990. The unit operated at power levels of up to 100% for the remainder of the month.

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Ih.__Di'ERATil10._thTA_REPDRI DOCKET NO. 0b0-454 UNIT Dyron One DATE: 01/10/91 COMPILED BY: K. Orris TELEPilONE : (015)234-5441 x2444 OPERATING STATUS

1. Reporting Period December, 1990. Gross llours: 744
2. Currently Authorized Power Level 3411 (MWL)

Design Electrical Rating: 1175 (MWe-gross)

Design Electrical Rating: 1120 (MWe-net)

Max Dependable capacity: 1105 (HWe-net)

3. Power Level to Which Restricted (If Any)1 N/A
4. Reasons for Restriction (If Any):

Tills MONTil Yli TO DATE CUMULATIVE *

5. Report Period llrs. 744 8,760 46,393
6. Itx Crltical flours 712.1 7,144.2 37,684.2
7. Rx Reserve Shutdown llours 0 0 38
8. Ilours Generator on Line 706.5 7,061.6 37,155.6
9. Unit Reserve Shutdown llours 0 0 0 810. Gross Thermal Energy (HWil) 2,178,978 21,612,164 112,872,604
11. Gross Elec. Energy (MWil) 736,966 7,336,662 38,081,000
12. Not Elec. Energy (HWil) 698,740 6,934c233 35,912,265
13. Reactor Service Factor 95.7 81.6 81.2  !
14. Reactor Availability Factor 95.7 L:1.6 81.3
15. Unit Service Factor 95 83.6 80.1
16. Unit Availability Factor 95 80 6 80.1
17. Unit Capacity Factor (MDC net) 85.0 71.6 70.1
18. Unit Capacity Factor (DER net) 83.9 70.7 69.1  !
19. Unit Forced Outage firs. 37.5 209.4 1,266.4
20. Unit Forced Outage Rate 5.0 2.8 3.3
21. Shutdowns Scheduled Over Next 6 Months: None
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)

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l C._lWERAGE. DAILLVRlLi'ONEILLEVIL I DOCKET No.: 050-454 UNIT Hyron One

! DATE: 01/10/91

COMPILED fly K. Orris

! TELE NkNE : (015)234-5441 x2444 i

l' HONTil: December, 1990 l l

I DAY AVERAGE DAILY POWER LEV!.L 1

(MWe-Net)

1. 103LMR. 16. .__1019_HN

?. _ .,... _9 PLMit . - . _ . 17. 110Z_MW-

3. 50LMW 18. 102LMW
4. -it.MN 19. . _10A LMN E. 3DLHW 20. 1022 MW
6. AADE 21. 1010_MW

. 7. 10ftLMit. 22. 9.9L MN

0. 989 MW 23, 1052_MW v
9. _ 95UfN 24. _ 1010 E
10. _ 1018 MW 25. 822 MW
11. 1ROLNW 26. 991 MW
12. .20LME_ 27, 1022 MW 13 . .___ 1020_HN 20. 1Q11 E ,_
14. 10.0LMN 2 9. _ IQ0LNH
15. 104LMW 30. 101LMW .
31. 1Q5D E INSTRUCTIONS On this fotm 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 i will be used to plot a graph for each reporting mont.h. Note that when' maximum dependable capacity is used for the net electrical rating of the unit there l may be occaslons when the daily average power level exceeds the 100% line l (or the restrleted power level line.) In auch cases the avarage daily unit power output sheet should be footnoted to explain the apparer,t anomaly.

(0625M/0002M/4) i

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Report Period December, 1990 UNIT SHUiIDOWNS/ REDUCTIONS

  • BTRON *

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

No. Date ~m e Hours Reason Method _LER Number System Com9enent Cause & Corrective Action to Prevent Eecurrence 9 12/03/90 F 37:31 G 3 90-014 FW/RP During performance of slave relay surveillance an actual Feedwater isolation signal was generated causing a loss of feedwater. A reactor trip on Lo-2 Steam Generator level ensued.

  • Summary
  • TIPE E + u 21 Method Sn tem & h mne_= t 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-Eegulatory Restriction 4-Continued Data Entry Sheet E-Oparator Training 5-Eaduced Lead Licensee Evant Report

'. License Examination 9-Other (LER) File (NU:EG-Ol61)

(0525M/0062M/5)

s Eu__ UNIQUL_REPORTINQlEQUlltCMENTE (UNII_lLIQL_the .nenth_0LPecember.1990 l

1. Saf et y/ Relief volve operations f or Unit One. I VALVES 110 & TY PE PLANT DESCRIPTIO!1 DATE ACTUATED ACTUATION CONDITION OLEYENT i

None l

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2. L!censee generated changes to ODCM. (Y/N) l l

H o n t, I l

3. Indications of failed fuel. ( f /11) l No Fuel Rellability Indicator FRI = 1.3E-4 pC1/cc i l

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1 E . _11 C EH S E E _ EVIHLPIPORIS_.JW 12_11 The fo~ilowing is a tabular summary of all bicensee Event Reports for Dyron Nuclear Power Station, Unit One, submitted during the reporting period, December 1 through December 31, 1990. This information is provided pursuant to l the reportable occurrence reporting requirements as set forth in 10CTR 50.73.

Occurrence L Lcensre_.Ev. cat _Repo11_Rwnber Dnic Iltle._nLQccuttence 90-014 12/03/90 feedwater isolation at power during Safeguards Relay Test due to personnel error.

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(0625M/0002M/7)

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. l II . Monthly _Repor.L. lor _. fly. tan.1!!11T_2_.lon the.ancallLnL December _.lMD Ai Summaryal.Detratinglxper.itace_ lor. UniL2 I a

The un1t began this report.ing period in Mode 1 (Powet Operation) at approximately 100% power. On December 20, 1990 t.he unit was manually tripped due to a break in the sample line off the 2C Main Steam header.

The unit was back on line December 71. The unit operated at power levels up to 100% for the remainder of the month.

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(0625M/0062M/8)

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t IL_DPIRAT1HQ EATAEEORT

[ DOCKET NO. 050-455 UNIT: Dyron Two DATE: 01/10/91 COMPILED BY: K. Orris TELEPHONE: (815)234-5441 x2444 OPERATING STATUS

1. Reporting Periods December, 1990. 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):

Tills MONTil YR TO DATE CUMULATIVE *

5. Report Period firs. 744 8,760 29,497
6. Rx Critical flours 718.3 6.667.1 24,732.1
7. Rx Reserve Shutdown llours 0 0 0 l
8. Ilours Generator on Line 702.6 6,599.6 24,284.6
9. Unit Reserve Shutdown flours 0 0 0
10. Gross Thermal Energy (MWH) 2,236,204 18,743,783 64,311,392
11. Gross Elec. Energy (MWil) 761,876 6,393,295 21,738.095
12. Het Elec. Energy (MWil) 723,778 6,014,192 20,404,329
13. Reactor Service Factor 96.5 76.1 83.8
14. Reactor Availability Factor 96.5 76.1 83.8 l 15. Unit Service Factor 94.4 75.3 82.3 i 16. Unit Availability Factor 94.4 75.3 82.3 l 17. Unit Capacity Factor (MDC net) . 88.0 62.1 62.6
18. Unit Copacity Factor (DER net) 86.9 61.3 61.8 l
19. Unit Forced Outage llrs. 41.4 67.1 886.4.
20. Unit Forced Outage Rate 5.5 1.0 3.5
21. Shutdowns Scheduled Over Next 6 Months: None
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/9)

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  • s c.. AYERAGLDAILLUH12_.ERNEILLEYE j

DOCKET NO. 050-455 UNIT Dyron Two DATE: 01/10/91 COMPILED BY: K. Orris TELEril0NE: (015)234-5441 x2444 MONTH: December, 1990 DAY AVERAGE DAILY p0WER LEVEL (MWe-Net)

1. 1011 }iW 16, 1074_MW
2. 1Q10_MW 17. 101LMW
3. 11Qij4W 18. Illi_MW
4. Il0LMit 19. 11DLMW
5. - 1101 MW 20. 11Litw
6. 110LMN 21. . 2 MW
7. 1032 MW 22. _(ALMW
8. 1QiLNW 23. ___ati._MW
9. 810_MW. 2 4 . _._. IRQQ.JfW _
10. 1Q55 MM 25. 1QE9 MW
11. 11DLMN _ 26. 10.45 E
12. 1ASLMN 27. 1Q33 MW _
13. 10 ELMW ' 28. 1019_MW
14. .109L MW 29. .1014 MW
15. 1011J4W _ _ _ . _

30, 1002 MW-

31. 1.Q.QS MW ,. j 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 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.

(0625M/0062M/10)

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T Report Period December, 1990 UNIT SHUTDOWNS /EEDUCTIONS

  • BTRON *

{ UNIT 2) **************************

No. Date Tyne Hours Egason Method LER Number System Coenonent Cause & Corrective Action to Prevent Eecurrence

.8 12/20/90 F 41.24 A 2 90-010 MS Break in sample line off the 2C Main Steam Eeader.

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  • Summary
  • TTPE Rt; son Method System & Comnonent 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--Othe r (LER) File (NUREG-0151) e l (0525M/0062M/11) i *

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1 E.__UN10V LREEORT1H L REQUIREMERIS_(URIT 2) iuL Ahe 10.onth ofYD CtabtI_1990

1. Safety / Relief valve operations for Unit Two.

VALVES N0 f. TYPE PLANT DESCRIPTION I DATE ACTVATED ACTUATION CONDI.Il0H QE.lVRIT i None I

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

None  !

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

Ye ti ruel Rollability Indicatort FRI = 2.0E-4 pC1/cc Reactor trip on 12-20-90 resulted in an iodine spike which indicates a .

fuel failure is present. The levels of the TRI data estimate a single I rodlet is failed.

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(0625M/0062M/12) i

L LICEtiSEE_EVIHLREPORTS_10 MIL 2.1 The following is a tabular summary of all Licensee Event Reports for Dyron Nuclear Power Station, Unit Two, submitted during the reporting period, December 1 through December 31, 1990. This information is provided pursuant to

-t.he reportable occurrence reporting requirements as set fort.h in 10CFR 50.73.

Occurrence Lictnstte_IYenLRep0LLRWhbet D.ttle Titlt_2LDICuritnC9 90-009 11-07-90 EST Actuation caused by Low-2 S/G 1evel due to procedural deficiency.

(06tSM/0062M/S3)

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