ML20065D424

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Monthly Operating Repts for Aug 1990 for Byron Nuclear Power Station Units 1 & 2
ML20065D424
Person / Time
Site: Byron  Constellation icon.png
Issue date: 08/31/1990
From: Orris K, Pleniewicz R
COMMONWEALTH EDISON CO.
To:
NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
References
BYRON-90-0890, BYRON-90-890, NUDOCS 9009250193
Download: ML20065D424 (14)
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,c ---. - ,. , Commonwealth Edison

. . Byrtn Nucliar Stati:n Cr 4450 N:rth GIrman Church R:ad <

Byron, Illinois 61010 September 10', 1990 LTR:- BYRON 90-0890 FILE: 2.7.200 Director, Office of Management Information j and Program Control United States Nuclear Regulatory Commission j Washington, D.C. 20555  ;

f ATTN - Doctubent Control Desk ,

Y Gentlemen Enclosed for your information is the Monthly Performance Report covering  !

Byron Nuclear Power Station for the period August 1 through August 31, 1990. '

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Sincerely, hk -  ;

R. Pleniewicz Station Manager  !

Byron Nuclear Power Station i

RP/m1m (0625M/0062M) cci A.B. Davis, NRC, Region III NRC Resident Inspector Byron Ill. Dept. of Nuclear Safety i M. J. Wallace/K.L. Graesser

. Nuclear. Licensing Manager Nuclear Fuel Services, PWR Plant Support D. R. Eggett, Station Nuclear Eng]neering INPO Records Center T. Boyce - USNRC a on . ..

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,. BYRON NUCLEAR POWER STATION .

.l UNIT 1 AND UNIT 2 MONTHLY PERFORMANCE REPORT s

l COMMONWEALTH EDISON COMPANY NRC DOCKET NO. 050-454 HRC DOCKET NO. 050-455 LICENSE NO. NPF-37 LICENSE NO. NPF-66  !

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(0625M/0062M/1)

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y I. -anagly,_ Report for_Ryxea.pNIT 1 for.t L agath of August'1990_

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At Ausmary_of .OgtIAting hpe.tmgg,.fgr Unit 1  :

t'he unit began- this reporting feriod in Mode 1 (Power Operation) at'  !

approximately 97% power.- On August 19,-during a heavy thundSrstorm with ligttning,!init I reactor-trip.cccurred from an automatic RPS signal of -j

" Power Range Flus Negative Rate.High Reector Trip." On August 20 at 1132.  !

the Unit was critical and at.1425 the Unit .was synchronised.1- The unit . -} .

operat66 at power levels c1 up to '100% for, thol remainder of the month.  ;

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(0625M/0062M/1)

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. w L DfERAlltiG_Dja' EEPORT DOCKET NO. 050-454 UNIT: Byron One DATE: 09/10/99 COMPILED BY K. Orris TELEPHONE: (815)234-5441 x2444 OPERATING STATUS

1. Reporting Period: August, 1990. Gross Hours: 744
2. Currently Authorized Power Levels 3411 (MWt)

Detign Electrical Rating: 1175 (MWe-gross)

Design Electrical Rating: 1120 (MWe-net)

Max Dependable Capacity: 1105 (MWe-net)

3. Power Level to Which Restrict'ed (If Any): N/A
4. Reasons for Restriction (If Any):-  !

THIS MONTH YR TO DATE- CUMULATIVE *

5. Report Period Hrs. 744 5,831 43,464
6. Rx Critical Hours 712.9 4,247.1- 34,787.1
7. Rx Reserve Shutdown Hours 0 0 38
8. Hours Jenerator on Line 710.1 4,170.1 34,264.1
9. Unit Reserve Shutdown Hours 0 0 0
10. Gross Thermal Energy (MMH) 2,112,190 12,536,741- 103,797,181
11. Gross Elec. Energy (MWH) 711,154 4,244,684 34,989,102
12. Het Elec. Enetgy (MWH) 673,396 -3,994,539 32,972,571
13. Reactor Service factor 95.8 72.8 80.0
14. Reactor Availability rector 95.8- 72.8 80.1
15. Unit Service Factor 95.4 71.5' 78.8
16. Unit Availability Factor 95.4 71.5 78.8
17. Unit Capacity Factor (MDC net) 81.9 62.0 68.7
18. Unit Capacity Factor (DER net) 80.8 61.2 67.7
19. Unit Forced Outage Hrs. 33.9 171.9 1,228.9
20. U. tit Forced Outage Rate 4.5 3.9 3.5
21. Shutdowns Scheduled Over Next 6 Monthst None
22. If Shutdown at End of Report Period. Estimated Date of Startupt
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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.C. ... AVR4GLDAILY Ul(IT POWER LEVEL DOCKET NO.: 050-454 UNIT: Byroa One DATE: 09/10/90 COMPILED BY: K. nrris TELEPHONE: '

~v> t-5441

<2446 MONTH: August, 1990 DAY AVERAGE DAILY POWER LEVEL (MWe-Het)

1. 9&LNW 16. 1027 MW k
2. 1028 MW 17. 1057 MW
3. 1089 MW 10. 1Q11 MW
4. 1065 MW 19. 169 MW
5. 92LMW 20. 73 MW 6, 1013 MW 21, 242 MW
7. 101h_HW 22. 540 MW B. .973 MW 23. 848 MW
9. 985 MW 24. 1017 MW
30. 9BLNW 25. 1012._)iw _
11. 1Q12 MW 26. 955 MW
12. 919._MW 27, 1Q$1_NW
13. 1019 MW 2 8 . __, __ 1022 MW
14. .10$1_MW 29. 89E_MW
15. 1DALMN 30. . 90LNW  !
31. 1001 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 maximum dependable capacity is ussd 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/4)

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  • BTRCN
  • R; port Period August, 1990 UNIT SEUTDOWNS/ REDUCTIONS (UNIT 1) **************************

No. Date T70e boursReasonMethod LER Number System Connonent Cause & Corrective Action to Prevent Recurrence S. 08/19/90 F 33:59 A 3 RD During a heavy thunderstorm with lightning Unit 1 Rz trip occurred from an automatic RPS signal of "PWR Range Fluz Negative Rate High Rz Trip."

croce s * * * * * * * * *

  • O Summary
  • ocooce*********

TYPE _.,_ Reason Method 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 Geram Preparation of l

l D-Regulatory Restriction 4-Continued Data Entry Sheet E-Operator Training 5-Reduced ~oad Licensee Event Report

& License Examination 9-Other (LER) File (NG::"G-0161)

I (06 25M/0062M/ 5 )

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a ,,11RIQLII RKEQEI1Hf e REQLllREtiEKIS (UNIT 1) for the moath of August 199Q I

1. Safety / Relief valve operations for Unit One.

. VALVES- NO & TYPE PLANT, DESCRIPTION.

DATE ACTUATED AC211ATIII[ CMDITIN OF EVENT

'l i None

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

No .

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

"' Fuel Reliability Indicator: FRI'm 1.5E-4 pCi/cc ,

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(0625M/0062M/6)

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F... LI. Cell 1EE_EYElfl_SEPORTS (URIT 1)

The following is a tabular summary of all Licensee Event Reports for Byron Nuclear Power Station, Unit One, submitted during the reporting period, August 1.through August 31, 1990. This;information is.provided pursuant to the reportable occurrence reporting requirements as set forth in 10CFR 50.73.

-Occurrence Licentee . Eve.at_. Report Number D.ain Title of occurrence 90-009 7/14/90 Missed sample required by an inoperable radiation monitor due to mis-communication and Personnel error.

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I (0625M/0062M/7)

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6 f II . )19.gthly Repgrt for Byron UNIT 2 for the month of Anoust 1990 l A. Sa= = ry of Operatina Experience for Unit 2 'l t

The unit began this reporting period in Mode 1 (Power Operation).at.

approximately 58.6% power. The' unit is in coastdown'in preparation for . ,

'its refueling outage scheduled for September.

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(0625M/0062M/8)

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B. OffEAllllG DATA REPORI DOCKET NO. 050-455 UNIT: Byron Two DATES- 09/10/90 COMPILED BY: K. Orris TELEPHONE: (815)234-5441 x2444 OPERATING STATUS

1. Reporting Period: August, 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)! h/A
4. Reasons for Restriction (If Any): i THIS MONTH YR TO DATE CUMULATIVE *
5. Report Period Hrs. 744 5,831 26,566
6. Rx Critical Hours 744 5,682.3 23,747.3
7. Rx Reserve Shutdown Hours 0 0 0
8. Hours Generator on Line 744 5,669.5 23,354.5
9. Unit Reserve Shutdown Hours 0 0 0
10. Gross Thormal Energy (MWH) 1,245,104 16,148,701 61,716,310
11. Gross Elec. Energy (MWH) 396,694 5,517,202 20,862,002
12. Het Elac. Energy (MWH) 361,813 5,212,337 19,602,473
13. Reactor Service Factor 100 97.4 89.4
14. Reactor Availability Factor 100 97.4 89.4

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15. Unit Service Factor 100 97.2 87.9
16. Unit Availability Factor 100 97.2 87.9
17. Unit Capacity Factor (MDC not) 44 80.9 66.8
18. Unit C(pacity Factor (DER net) 43.4 79.8 65.9
19. Unit Forced Outage Hrs. 0 26 845
20. Unit Forceo Outage Rate 0 0.5 3.5
21. Shutdowns Scheduled Over Next 6 Fonths: 1 - September
22. If Shutdown at End of Report Peri od, Estimated Date of Startup N/A
23. Units in Test Status (Prior to C m:mercial Operation): None
  • Note The cumulative numbers do not reflect power generated prior to commercial service.

( 062 5'(/0062M/ 9)

C. AVIPAGLl1AILY UtiIT.. POWER LEYJL DOCKET NO.: 050-455 UNIT: Byron Two DATE: 09/10/90 COMPILED BYt K. Orris TELEPHONE: (815)234-5441 x2444 MONTil August, 1990 DAY AVERAGE DAILY POWER LEVEL (HWe-Net)

1. 6.QE_MW 16. 473 MW
2. 590_MW 17, 470 MW i 1
3. 576 MW 18. 460 MW
4. 572__MW 19, 110 MW
5. 569 MW 20. 435 MW
6. 578 MW 21. 446 MW i
7. 574 MW 22. 442 MW
8. SQ1_ MW
23. 446 MW
9. 510_MW 24. 436 MW
10. 541 MW 25. 427 MW 11, 52Ll4W 26 418 MW
12. 511_MW 27. 405 MW i
13. 5.Q9 MW 28. 408 191
14. 19H MW 29. 415 MW
15. 485 MW 30. 380 MW 31, 310 MW INSTRUCT 10 tis 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) I

  • BTRCN
  • R; port Period August, 1990 UNIT SHUTDOWNS / REDUCTIONS
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(UNIT 2)

No. Date Iggm Ecurs Reason Method LER Number System Comoonent Cause & Corrective Action to Prevent Recurrence No unit shutdown or major reductions for Unit 2 in August.

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O Sumary

  • cocoo**********

TYPE Reason Method System & Component F-Forced A-Equip Failure F-Admin 1-Manual Exhibit F & H-5-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 (Nt' REG-0161)

(0625M/0062M/11)

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E. UNIOUE REPOElitiG REOUIREtiENTS (UNIT 2) for the month of Auaust 1990

1. Safety / Relief valve operations for Unit Two.

i VALVES NO & TYPE PLANT DESCRIPTION DATE ACIMATED ACTUATION CONDITI.Cli OF EVENT None

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

No.

3. Indicotions of failed fuel. (Y/N)-

Yes. Approximately two to five leaking fuel pins.

Tuel Reliability Is.dicator = 2.3E-3 pC1/cc (0625M/0062M/12)

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..o LLLCEi[SEE EVENT REPORTS (UNIT 2)

The following is a tabular swnmary of all Licensee Event. Reports for Byron Nuclear Power Station, Unit Two, submitted during the reporting period, August 1 through August 31, 1990. This information is provided pursuant to the reportable occurrence reporting requirements as set forth in 10CFR 50.73.

Occurrence Licensge EvenLleggrt Number Dgg Title of OccurrenC2 90-002 7/14/90 feedwater isolation signal generated from the Train B Reactor Trip Breaker.90-003 7/17/90 P-14 Feedwater isolation due to difficulty controlling Steam Generator level at low power.

(0625M/0062H/13)

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