ML20072T153

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Monthly Operating Repts for Mar 1991 for Byron Units 1 & 2
ML20072T153
Person / Time
Site: Byron  Constellation icon.png
Issue date: 03/31/1991
From: Ehle D, Pleniewicz R
COMMONWEALTH EDISON CO.
To:
NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
References
BYRON-91-0264, BYRON-91-264, NUDOCS 9104170253
Download: ML20072T153 (14)
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Text

__ . - _ _ _ _ _ - - _ _ _ _ _

r C:mm:nw=lth Edison Byron Nuclear Station

[ .

4450 North Gerrnan Church Road

(,s _.

Dy ron, Illinois 61010 April 11, 1991 LTRt BYRON 91-0264 l'I LE t 2.7.200 Director, Office of Management Information and Program Control United States Nuclear Regulatory Commission Washington, D.C. 205$$

ATTNI Document Control Desk Centlement Enclosed for your information is the Monthly Performance Report covering Byron Nuclear Power Station for the period March 1 through March 31, 1991.

Sincerely, fit &{ - '

R. Plenlewies Station Manager Dyron Nuclear Power Station RP/DC/m1m (C626M/0062M) cci A.D. Davis, NRC, Region 111 NRC Resident Inspector Dyron Ill. Dept. of Nuclear Safety M. J. M.s11 ace /f:.L. Graesser Nuclear Licensing Manager Nuclear l'uel Services, PWR Plant Suppor t D. R. Eggett, Station Nuclear Engince:Ing INPO Records Center A. Hsla - USNRC 9104170253 910331 4 PDR ADOCK 0500 a

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v BYRON NUCLEAR POWER STATION UNIT 1 AND UNIT-2 MONTHLY PERFORMANCE REPORT F

COMMONNEALTil EDISON COMPANY NRC DOCKET NO.- 050-454 NRC; DOCKET NO. 050-455 LICENSE NO. NPT-37

-LICENSE NO. NPT-66

.N k

--(0625M/0062M/1) 1

l ..

I. Mnnthly.leporLinLDyron_UNILLint.the montitoLMarrh_1991 L __S umma ry_oLQp e rating lxp e rie nc e_.Ic LU n iL1 The unit begon this reporting period in Mode 1 (Power Operation) and remained there all month. The power level varied due to load following requirements.

I (0625M/0062M/2)

4 Du0PIRAIDIG_ DATA _REEORT DOCKET NO. 050-454 UNIT: Dyron One DATE: 04/11/91 COMPILED BY: D. Ehle TELEPHONE: (815)234-5441 x2263 OPERATING STATUS

1. Reporting Period March, 1991. 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):

THIS MONTH YR TO DATE CUMULATIVE *

5. Report Period Hrs. 744 2,160 48,553
6. Rx Critical Hours 744 2,160 39,844.2
7. Rx Reserve Shutdown Hours 0 0 38
8. Hours Generator on Line 744 2,160 39,315.6
9. Unit Reserve Shutdown Hours 0 0 0
  • 10. Gross Thermal Energy (MWH) 2,336,566 6,996,470 119,869,074
11. Gross Elec. Energy (MWH) 793,613 2,371,006 40,452,086
12. Het Elec. Energy (MWH) 753,840 2,253,984 38,166,249
13. Reactor Service Factor 100 100 82.0
14. Reactor Availability Factor 100 100 82.1
15. Unit Service Factor 100 100 80.9
16. Unit Availability Factor 100 100 80.9
17. Unit Capacity Factor (MDC not) 91.7 94.4 71.1
18. Unit Capacity Factor (DER net) 90.5 93.2 70.2
19. Unit Forced Outage Hrs. 0 0 1,266.4
20. Unit Forced Outage Rate 0 0 3.1
21. Shutdowns Scheduled Over Hext 6 Months: Unit 1 fourth refuel outage.
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)

.l ..

L AYERAGE DAILYELT_PDNEILLEYEL DOCKET NO.t 050-454 UNITI Dyron One DATE: 04/11/91 l COMPILED DY D. Ehle TELEPHONE: (815)234-5441 x2263 l

MONTH: March, 1991 '

DAY AVERAGE DAILY POWER LEVEL (MWe-Net)- i

1. 1019 E 16. __20LMW I
2. 1Qi6 MW 17, 1028 MW-
3. 10 H MW 18 . _ 10A0 E j l
4. _ 281 MW 19, 1067 MW j
5. 966 MW 20, 1047 MW 6 1102 MW 21, 1051 MW

\

7 1088 MN 22, 1053 MW

8. 1060_MW 23. 893 MN

'9. 1015_MW' 24, 1075 MW _

l 10. 1Q2LMW 25, 1021 MW 11, 999 MW . 2 6. 1074 MW

12. _J75 MW 27. 109L NH
13. -1078 MW 28. 103.9_ -_MW 14 . . 1095 MW 29. -1059 MW
15. 912 MW 30. 1Q15_NW 31, 1013 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 l 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 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)

EMMM UNIT SHUTDCMNS/ REDUCTIONS

  • BYRON Report Period March, 1991 **************************

(UNIT 1)

Component Cause & Corrective Action to Prevent Recyrrence

_](qu Date Type _ Hour.s Reason Method _.LER Number System FW Reduced to 20% power to repair IEWOO9 pressure

1. 3-4-91 F 27 A 5 -

switch.

oco************

  • Sum.ary
  • o*o************

Methqd System & Comogment TYPE Reason 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 E.tamination 9-Other (LER) File (NUREG-0161)

(0625FJ0062M/5)

_ . . _ , _ _ _ . _ . _ . _ _ _ _ _ _ _ _ _ . . . . _ _ . . . . _ _ _ _ . . . _ - .._.-__..__...._.m . _ . . _ _ _

4

)

1 Ei_URIQUE_RIEORTING_REQUIREMENTSJURIT_1.Llor_the.. month .oLJiarch.1911

- 1. Safety / Relief valve operations for Unit One.

VALVES NO & TYPE PLANT DESCRIPTION DATE ACIUATED ACTUATION CONDITIOR QE_EYENT None

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

None

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

No Tuel Reliability Indicator FRI = 1.3E-4 pC1/cc i

I t

[

t I

f' L

L (0625M/0062M/6)

F. LICENSELEYENLREPQEIS_(UNIT 1).

The following is a. tabular summary of all Licensee Event Reports for ,

Dyron' Nuclear Power Station, Unit One, submitted during the reporting period, March 1 through March 31, 1991.. This information is provided pursuant to the reportable occurrence reporting requirements as set forth in 10CFR 50.73.

-Occurrence Li.censac_EtenLReport_.Xumbat DAte 11 tin oLQccuttence ,

None e'

l l:

i l:

(0625M/0062M/7) l i

11. Monthly _EerntLinI_IlyIsn_UlilT 2 (pr._ _the._montltat 11arctL119.1 A. Summnry of. Op_elfLtdng.lKPfIltate._l01_ Unit _2 The unit began this reporting period in Modo 1 (Power Operation) and

-continued there all month. The power level varied due to load following

. requirements.

l-l (0625M/0062M/6)

D. OPERATING DATAJEI'ORI DOCKET NO.: 050-455 UNIT: Dyron Two DATE: 04/11/91 COMPILED BY: D. Ehle TELEPilONE : (815)234-5441 x2263 OPERATING STATUS

1. Repotting Period: March, 1991. Grous 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 (MWe-net)

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

THIS MONTH YR TO DATE CUMULATIVE *

5. Report Period firs. 744 2,160 31,657
6. Rx Critical flours 744 2,160 26,892.1
7. Rx Reserve Shutdown llours 0 0 0
8. Hours Generator on Line 744 2,160 26,444.6
9. Unit Reserve Shutdown llours 0 0 0
10. Gross Thermal Energy (MWH) 2,418,372 2,884,896 71,395,088
11. Gross Elec. Energy (MWH) 826,163 2,419,851 24,157,946
12. Not Elec. Energy (MWH) 785,842 2,302,440 22,706,769
13. Reactor Service Factor 100 100 84.9
14. Reactor Availability Factor 100 100 84,9
15. Unit Service Factor 100 100 83.5
16. Unit Availability Factor 100 100 83.5
17. Unit Capacity Factor (MDC net) 95.6 96.5 64.9
18. Unit Capacity factor (DER not) 94.3 95.2 64.0
19. Unit Forced Outage firs. 0 0 886.4
20. Unit Fotctd Outage Rate 0 0 3.2
21. Shutdowns Scheduled Over Next 6 Months: None
22. If Shutdown et 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 commercini service.

(0625M/0062M/9)

. . .. . - . . - - . - - .- . -- .. . .- -. . . -- - _ . . ~ .

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_.AVIMGILDALLI._UH1T POWER LEVEL j DOCKET NO. 050-455 l UNIT Byron Two j DATE: 04/11/91 l COMPILED BY D. Ehle '

TELEP110NE : (815)234-5441 x2263 MON 711 March, 1991 L DAY AVERAGE DAILY POWER LEVEL (MWe-Net)

1. 1032_MW 16. 978 MW

)

2. 1Q22 MW 17. 1Q$2_MW
3. lR11_MW 18. 1Df1_MW
4. 1081 MW 19. 1067 MW ,

1

5. 1Q2D F04 _ 20. 1054_MW
6. 1101 MW 21, 1062 MW
7. 1096 MW 22. 908 MW
8. .1080 MW 23. 1072 MW
9. 1Q74 MW 24. 1061_MW
10. -1QS8 MW 25. 1042 MW 11 . -1063 MW 26, 1024 MW l
12. 1Q16_MW- 27. 931 MW i'

j1 13. _ 1109 MW 28. 1061 MW l

l 14. 1Q92 MW 29. la10 MW

' 15 ; . 1051 MW 30. 1956 MW 31, 1Q54 MW i

INSTRUCTIONS On this form list the average daily unit power level in MWe-Net for each day L 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) l i;

s . _ . ._

  • BYRON * ,

Report Period March, 1991 UNIT SEUTDOWNS/ REDUCTIONS (UNIT 2)

Iygg Hours Reason Method LER Number System Component Cause & Corrective Action to Prevent Recurrence

_Fo. Date No Shutdowns or Major Reductions in March l

l l

ocooo**********

o Summary

  • o*ooo**********

Method System & Component TYPE Eggson 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 S-Reduced Load

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

(0625M/0062M/11)

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

E[ UNIOUE REPORTING EE.QQlREMEHlc M I_g) for the_ month of Mgr.ch._1191

1. Safety / Relief valve operations for Unit Two.  ;.

VALVES NO & TYPE PLANT DESCRIPTION DATE ACIVATED ACTUATIDH CONDITION Of._E.VINT None

- 1. Licensen generated changes to ODCM. (Y/N)

None

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

Yes Fuel Reliability Indicator FR1 = 3.0E-4 pC3/cc l

\

I

(~

~

t.

l-l l

l r

[ -.

l-

- (0625M/0062M/12)

j , ..

T. L1CARISEE_EYENLREPQlGS (UNIT 2.),

The following is a tabular summary of all Licensee Event Reports for Byron Nuclear Power Station, Unit Two, submitted during the reporting period, March 1 through March 31, 1991. This-information is provided pursuant to the reportable occurrence reporting requirements as set forth in 10CFR.50.73.

Occurrence Idscnknn_1.YanLRcPDIt Number Date litig_of_Qc. cur.r. enc.g None 1

t..

l^

t l

l (0625M/0062M/13)

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