ML20043A355

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Monthly Operating Repts for Apr 1990 for Byron Station Units 1 & 2
ML20043A355
Person / Time
Site: Byron  Constellation icon.png
Issue date: 04/30/1990
From: Orris K
COMMONWEALTH EDISON CO.
To:
Shared Package
ML20043A290 List:
References
NUDOCS 9005210240
Download: ML20043A355 (13)
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BIRON NUCLEAR-POWER STATION-
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6 NRC. DOCKET NOi 050-454 :t

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LICENSE NO. NPT-37: .

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t,s w I. MonthlyJepsrt ior kyyon UNIT 1 for the month of Aer11...1991, A. E= gry_gf Ocaratiner Emperignem for Unit 1 The unit began this. reporting period in Mode 5 due to a scheduled maintenance outage. The unit entered Mode.4 at 2244 on March 30, entered Mode 3 at 1050 on. April 1, entered Mode 2 at 2012 on April 2 and entered Mode 1 at 2118 on April 2. The. unit operated at power <1evela of up.to' 100% for the remainder of the month.-

.l (0625N/0062N/2)

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B. OPERATIR9 DATA REPORT DOCKET NO. 050-454 UNIT: Byron One DATEn- 05/10/90 COMPILED BY K. Orris TELEPHONE: (815)234-5441-x2444 OPERATING STA7US

1. Reporting Period: April, 1990. Gross Hourst 719
2. Currently Authorized Power Levell'3411 (MWr.)

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. 719 2879 40,512
6. Rx Critical Hours 675.2 1454.2 31,994.2
7. Rx Reserve Shutdown Hours 0 0 38
8. Hours Generator on Line 671.7 1390 31,484
9. Unit Reserve Shutdown Hours. 0 0- 0
10. Gross Thermal Energy (MWH) 2,130,057 4,021,016 95,281,456'
11. Gross Elec. Energy (MWH) 725,643 1,349,283 32,093,701
12. Not Elec. Energy (MWH) 687,300 1,256,992 30,235,024
13. Reactor Service Factor 93.9 50.5 78.9
14. Reactor Availability Factor 93.9 50.5 79.1
15. Unit Service Factor 93.4 48.3 77.7
16. Unit Availability Factor 93.4 48.3 77.7
17. Unit Capacity Factor (MDC net) 86.5 39.5 67.5
18. Unit Capacity Factor (DER not) 85.3 39.0 66.6
19. Unit Forced Outage Hrs. 0 0 1057
20. Unit Forced Outage Rate 0 0 3.2 Pl Shutdowns Scheduled Over Next 6 Months: 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 cumulativo numbers do not reflect power -

generated prior to commercial service.

(0625M/0062M/3)

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C...AVERhGE_DhlLX_1! HIT POWER LEVEL .{

DOCKET NO.: 050-454 UNIT Byron One DATE: 05/10/90 COMPILED BY K. Orris '

TELEPHONE: (815)234-5441 x2444 l l MONTH April, 1990 DAY AVERAGE DAILY POWER LEVEL l

(MWe-Net)

1. -14 MW 16. 1075 MW'
2. -1S_MW 17. 1097 MW
3. 371 MW 18. 1100 MW
4. 615_NW __

19, 1031_tM ,

5. 1098 MW 20. 1009 MW
6. 1064_NW 21. 1022 >#f
7. 1021 MW 22, 1079 MW
0. 996 MW 23. 1083 MW  ;

9, 1091 MW 24. ,,

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10. 1103 MH
25. 10A1_MW
11. 1105 MW 26. 1083 MW H
12. 1015 MW 27. 1071 MW' 1
13. 11El_NW 28. _1037 MW L 14. 11QQ,MW 29. 730 MW l

l 15 . .__. 10hf_NW 30. 906 MW _

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l l 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 1

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'averag daily unit-power output sheet should be footnoted to explain the apparent a3omaly.

(0625M/0062M/4)  ;

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-Report Period April, 1990 UNIT SHUTDOWNS / REDUCTIONS

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

No. Date Tyne Hours Reason Method LER Number System Comnonent Cause & Corrective Action to Prevent Recurrence

2. 04/01/90 S 47:20 F 4 Maintenance Outage B1M01 Ended 04/03/90'
3. 04/29/90 A 5 DEHC Load Drop /DEEC Problem During T7/GV Surveillance cose***********

O Summary

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TYPE Enason Method Systema & comnonent F-Forced A-Equip Failure F-Admin 1-Manual Erhibit 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-Other (LER) File (NUREG-Ol61)

(0625M/0062M/5)

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, E. UN100E kFEQRIJNG REOUIREMENTS (UNIT'1) for theJqnth of April 1990.  ;

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.. . . I 1.' . Safety / Relief valve operations for Unit One. l

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VALVES NO & TYPE: PLANT DESCRIPTION  ;

DATE ACTUATED ACTUARCRI - CQtIDlIIIII - QE_EYEllI '

l None .;

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'2.-- Licensee genareted. changes to ODCM.' (Y/N) {

No. .;

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

l Yes. Fuel Reliability Indicator: FRI = 1.1E-4 pC1/cc Irdicative of a single very tight (small) pin -l hole clad defect. ,

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1 F. . LICENSEE EVENT REPORTS (UNIT 1)  !

l The-following is a tabular summary of all Licensee Event Reports'for  !'

Byron Nuclear Power Station, Unit One,- submitted during the reporting period, April 2 through' April'30, 1990. This information is provided pursuant to the  !

reportable occurrence reporting requirements as set forth in 10CFR 50.73. i Occurrence L11RESA1.Innt_ Report Number D&tA 'Iltle of Occurrgngg-90-003 03/07/90~ Late Technical Specification action entry due to improper acceptance criteria format.and inadequate surveillance review.90-005 03-27-90 Automatic start of the OA Fuel Handling Building Charcoal Booster Fan during calibration due to procedural deficiency and personnel error.

(0625M/0062N/7)

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II. Monthlylepm t for BynGIT 2 for tiuonth of April 1990 A. Ed mmaty of ODeratina Experience for Unit 2 The unit began this reporting period in Mode 1 (Power Operation) at approximately 99.8% power. The unit ran at reduced power levels twice during the months once to work on the 2A Feedwater Pump and once for Containment entries and CW tower work. The unit operated at power levels of up to 100% for the remainder of the month.

-(062LM/0062M/8)

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B. OPERATING DATA REPORT DOCKET NO.: 050-455 l

' UNIT Byron Two I DATE: 05/10/90 COMPILED BY:- K. Orris .

TELEPHONE: (815)234-5441 l x2444 ,

OPERATING STA'ItJS

1. Reporting Period April, 1990. Gross Hours: 719  !

Currently Authoriz4 Power Level 3411 (MWt)-

2.

Design Electrical Rating: 1175 (MWe-gross)

' Design Electrical Rating: 1120 (MWe-net) {

Max Depe.ndable Capacity: 1105 (MWe. net)  ;

3. Power LSvel to Which Restricted (If Any): N/A 'f
4. Reasons for Restriction (If Any):  ;

THIS MONTH YR TO DATE CUMULATIVE *  !

5. Report Period Hrs. 719 2,879 23,616 ,
6. Rx Critical Hours .719 2,812 20,877
7. Rx Reserve Shutdown Hours 0 0 0
8. Hours Generator on Line 719 2,804 20,489

-9. Unit Reserve Shutdown Hours 0 0 0  !

10. Gross Thermal Energy (MWH) 2,225,364 8,875,497' 54,443,106'

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11. Gross Elec. Energy (MWH) 766,701 3,052,058- 18,396,858 {
12. Net Elec. Energy (MWH) 726,135 2,897,397 17,287,533 i
13. Reactor Service Factor 100 '97.7 88.4
14. Reactor Availability Factor 100 97.7 88.4
15. Unit Service Factor 100 9744 86.8 l
16. Unit Availability Factor 100 97 . 4 86.8
17. Unit Capacity Factor (MDC net) 91.4 91.1 66.2 I- 18. Unit Capacity Factor (DER net) 90.2 89.9 65.4
19. Unit Forced Outage Hrs. 0 26 845
20. Unit Forced. Outage Rate 0 0.9 4.0
21. Shutdowns Scheduled Over Next 6 Months: None
22. If Shutdown at End of Report Period. Estimated Date_of Startup N/A
23. Units in Test Status (Prior to Commercial Operation): None ,
  • Note - The cumulative numbers do not reflect power  ;

generated prior to commercial service.

j (0625M/0002M/9)

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AVERA.GE DAILY UNIT POWER LEVEL DOCKET NO. ' 050-455 UNITt Byron Two DATE: 05/10/90 COMPILED BY K.-Orris TELEPHONE: (815)234-5441 x2444 +

MONTH: April, 1990 DAY AVERAGE DAILY POWER LEVEL +

(MWe-Net)

1. 1QiD MW 16. 078 MW
2. 1093 MW '17. 59 8 -)Of ,
3. 1109 MW 18. 626 MW 4 11Qh_MW 19. Qs2 MW
5. 1003 MW 20. 1075 MW -
6. 1094 MW 21. 1085 MW
7. 1013 MW 22. 1077 MW' 1
8. 1064 MW _, 23. 1078 MW l
9. 1076 MW 24. 10BB MW i

l 10. 1103 MW 25. 1075 MW

11. 110LMW 26. 103 U et_

12 . __,

1Q91 MW 27. 1027 MW __ ,

13. 1DSh_MW 20. 425 MW
14. 1082 MW 29. 910 MW l
15. 102LNW 30. '1079 MW i

i l INSTRUCTIONS L -

l 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 ,

l will be used to plot a graph for each reporting month., Note that when maximum l 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)

e Report Period April, 1990 UNIT SHUIDOWNS/ REDUCTIONS

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

No. Date W4 Hours Reason Method LER Number System Comoonent Cause & Corrective Action to Prevent Recurrence

4. 04/16/90 72 A 5 Reduced load to work on 2A FW Pump.
5. 04/28/90 48 A 5 Reduced load to support containment entries and CW tower work.

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  • O Summary
  • f***L**********

' TYPE Egason Method System & Connonent F-Forced A-Squip 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 (NUREG-Ol61)

(0:25M/0062M/11).

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E. UNIOUE REI'OEI1HEREQUIREMERIE_lUNIT 2) for.the month of April 1990.

1, Safety / Relief valve operatlons for. Unit- Two.'

s VALVES NO & TYPEI PLANT DESCRIPTION DATE. ACIUATED. ACWATIN CW DITION .QF EVENT--

None i

2. Licensee'gonerated changes to ODCM. .(Y/N) t No.

1

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

-Yes. .Approximately two to six leaking fuel pins.  !

Fuel Reliability Indicator = 3.5E-3 pC1/cc

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,, (0625M/0062M/12)

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L _(ICDISTJLEYENT REPQRTS (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,L ,

April l'through April-30, 1990. This'informatlon is provided pursuant to-the

. reportable occurrence' reporting requirements'as set forth in 10CTR 50.73.

Occurrence ,

idngngsg Event Repgrt Number Data Title of Occurrence

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4 (0625M/0062M/13)

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