ML20070P489

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Revised Monthly Operating Repts for Feb 1991 for Braidwood Nuclear Power Station
ML20070P489
Person / Time
Site: Braidwood  Constellation icon.png
Issue date: 02/28/1991
From: Dundek K
COMMONWEALTH EDISON CO.
To:
Shared Package
ML20070P488 List:
References
NUDOCS 9103270316
Download: ML20070P489 (13)
v • d • e


Text

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BRAIDWOOD NUCLEAR POWER STATION UNIT 1 AND UNIT 2 MONTilLY PEEFORMANCE REPORT COMMONNEALTil EDISON COMPANY NRC DOCKET NO. 050-456, LICENSE NO. NPF-72 NRC DOCKET NO. 050-457, LICENSE NO. NPF-77 f

9103270316 910308 PDR ADOCK 03000456 R PDR )

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I. Monthly Report for Braidwood-Unit 1 A.- Eumme.ry of Operating Expatiente Braidwood Unit 1 entered the month of February in a forced outage resulting from a neutral ground overcurrent trip of the main generator. The unit remained in the outage the entire month.

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(227/ZD85G)3 l

-. l m B. - OPIEATIHLDATAJEEDRI . DOCKET NO. '50-456 UNIT: Draidwood-'1 DATE: 03/10/91 COMIILED BY -K. M. Dundek-TELEPHONE: (815)458-2801 ext.~2480-

-:_ OPERATING STA'IUS

1. Reporting. Period February, 1991 Gross Hours: 672 l

'2. Currently Authorized Power Level (MWt): 3411 I i

Design Electrical Rating (MWo-gross): 1175 g

Design Electrical Rating (MWe-net): 1120 -I L Max Dependable Capacity (MWe-gross): 1175  ;

Max Dependable Capacity (MWe-net): 1120

3. Power-level to which restricted (If Any): -None
4. . Reasons for restriction (If Any): None IHIE_HORT11 XR_IQ_DATE _ CUMULATIVE _

5.- Report period Hours: 672 ,_ __1415_ _,,.22 6 6.5

'6.. Hours Reactor Critical 0.0 0.0 .. .. . 16 9 2L1,_

7.- .RX Reserve Shutdown Hours: 0.0 OJ QJ.__ t 8.- Hours Generator on Line: 0.0 OJ . . . 16_h30.9

9. Unit Reserve Shutdown Hours: 0.Q_ OJ 0.0
10. . Gross-Thermal Energy (MWH): 0.0 0.0 19A$3070
11. Gross Elec. Energy (MWH): 0.0 QA_- 1708Qb_il _
12. .Het Elec. Energy (MWH): -9Q11 -19107 1.6302649

_ 13. Reactor Service Factor 0 . 0,,, 0 0 ' _,,, 74.7 l!* 14. 'ReactorLAvailab111ty Factor 0.0 ,,__ 0.0 74.7

15. " Unit Service Factor 0.0 Od 73.4
16. ; Unit Availability Factor 0.0- 00 73.4 17.- " Unit Capacity Factor-(MDC' net): -1,1 -1.2 64 1 -
18. Unit Capacity Factor (DER net): -1. L _ -i t 2 64.2-
19.  : Unit Forced Outage Rate: 100 '100 14.8

- 2 0. - Unit-Forced Outage Hours: 672- -1410__ 219L,__

21. Shutdowns Scheduled Over Next 6 Months -Refueling Outege - March Ic 1991
22. If Shutdown.at End of_ Report Period, Estimated.Date of Startups May__1,__L9.91_,._

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! -(227/ZD850)4 i

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C. AVERACE DAILY UNIT NET _EQWER LEVEL LOG DOCKET NO.: 50-456 UNIT: Braidwood 1 DATE: 03/10/91 COMPILED BY: K. M. Dundek TELEPHONE: (815)458-2801 ext. 2480 MONTH: February, 1991

1. -13 17. -13
2. -14 18. -13
3. -14 19. -11
4. -13 20. -13
5. -13 21. -13
6. -13 __ 22. -13
7. -13 ___ 23. -13
8. -13 24. -13
9. -13 25. -13

-10. -13 26 -13

11. -13 27 -13
12. -13 28. -13
13. -13
14. -13
15. -13
16. -13 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 potter

' 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.

  • Due to Condenser Efficiencies (227/ZD85G)5

_ . ~ . . _

D. UNIT SHUTDOWNS / REDUCTIONS DOCKET NO.:'50-456' -

UNIT: Braidwood 1 ~ X f' DATE: 03/10/91'- ', ---

! COMPILED BY: K.lM."Dundek: ,

TELEPHONE: .(815)458-2801 ,

' ext.'2480 REPORT PSRIOD: February, 1991 No DATE TYPE HOURS REASON METHOD LER NUMBER SYSTEM COMPONENT CAUSE & CORRECTIVE ACTION 'IO PREVENT RECURRENCE-

'6 901230 F .'672 A 4 90-023 TG GEN This' outage is continued from December, 1990, when the Neutral ground overcurrent trip of'  ;

main generator occurred. The fault was caused by a' vent spacer coming' loose and damaging a-bottom l coil in the stator. The failure is *

' considered to be an isolated event...

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                • =********
  • SUMMA'RY* ,

ee***************

TYPE REASON METHOD SYSTEM & COePurirnT

. .. r F-Forced A-Equipment Failure Maint.;or' Test' 1 - Manual Eshibit F & H l S-Scheduled B-Maint' or . Test- 2 - Manual Scram Instructions for Preparation of .

C-Refueling 3 - Auto Scram Data Entry Sheet D-Regulatory Restricticn 4 - Continued Licensee Event Report E-Operator TrainingL& License Examination 5..- Reduced Load (LER) File (NUREG-0161)  !

t F-Administration- 9 - Other' G-Oper Error ,

H-Other (227/ZD85G)6 ,

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+

E. UNIOUE REPO SING REOUIREMENTS - Unit 1

1. Fafety/ Relief valve operations.

VALVES NO & TIPE PLANT DESCRIPTION DATE ACTUATED ACTUATION CONDITION OF D'ENT NONE

2. Licensee generated changes to ODCM.

None (227/ZD85G)7

F. LICCHSEE_CYJ:HLREEORTS - UlllL1 The following is a tabular summary of all Licensee Event Reports submitted (Aring the reporting period, February 1 through February 28, 1991. This information is provided pursuant to the reportable occurrence reporting requirements as set forth in 10 CFR 50.73.

Licensee Event Report Repart_11wnheI_ Data Title of Ocerrlanse 91-001 02-20-91 IB containment spray pump inoperable due to use of non-guallfled pewnr supply breaker.

(227/ZD85G)8

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1. Monthly Report for braidwood Unit 2 A. fi.ummary .2L.DpfLIAtingJXpcLISACA Braldwood Unit 2 entered the month of February at approximately 99% reactor power. A scheduled power reduction occurred on February 2, 1991 to replace a Reactor Coolant system flow transmitter. After the repair, the unit returned to full power and remained there entil another scheduled power reduction occurred on February 8, 1991 to repair a failed cooling water line to the Heater Drain Pumps. After repairs, the unit operated routinely the remainder of the month.

4 (227/ZD85G)9

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-. D. 012 RAT 1HQ,EATA_FII' ORT DOCKET NO.: 50-457 UNIT: Draidwood 2 DATE: 03/10/91 COMPILED DY: K. M. Dundek TELEPil0NE: (015)450-2001 ext. 2400 e)

OPERATING STATUS

1. Reporting Period: February, 1991 Gross llours 572 -
2. Currently Authorized Power Level (MWt): 3411 Design Electrical Rating (MWe-gross): 1175 Design Electrical Rating (MWe-net): 1120 Max Dependable Capacity (MWe-gross): 1175 Max Dependable Capacity (MWe-net): 1120
3. Power lovel to which restricted (If Any): None
4. Reasons for restriction (If Any): None IllIS._.MONTil YIL.TO EATE CUMULAILYX L
5. Report period flours: 612 _. 1.410 _ _.._2 0141_ .
6. Ilours Reactor Critical: 611 lil6_ ,__.1]A$5. .li
7. RX Reserve Shutdown liours: G.0_ _ 001 020
8. Hours Generator on Line ._ 61 1 1416_._ ll322A2
9. Unit Reserve Shutdown llours: 0.Q O oD _ 0.JJ
10. Gross Thermal Energy (MWH): 20MILM ._AQDAIAQ 1919.iDQQ_
11. Gross Elec. Energy (MWil): .1252Di ___ _15015Ah 11122A19 ,
12. Net Elec. Energy (MWil): _102919 ,_151B161,._. If16sDA1_
13. Reactor Service Factor 1DL.Q._ 10 dad hA11
14. Reactor Availability Factor 1DL.Q._ 1RQ20 01,1
15. Unit Service Factor: 10R,S.., 10D2.0 _- 0315
16. Unit Availability Factor 10 0 . Q._ 1QQ A __ Q32h 17.. Unit Capacity Factor (MDC net): 9 3 . i_. 97.0 70 tA
10. Unit Capacity Factor (DER net): 93 i. _, 9140 7Q14
19. Unit Forced Outage Rate QaD_ 0 ,_Q _ 32A
20. Unit Forced Outage Hours Qd .L .Q ._111J
21. Shutdowns Scheduled Over Next 6 Months: None
22. If Shutdown at End of Report Period, Estimated Date of Startup (227/ZD850)10

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C. AYERAGE_DALLLilHIT NET POWER LEVELQG DOCKET NO.: 50-457 UNITI Braidwood 2 DATE: 03/10/91 COMPILED BYt K. M. Dundek TELEPHONE (815)458-2801 ext. 2480 MONTH: February, 1991

1. 1048 17, 967
2. 113 18. *1127 s
3. 697 19. __ 1069
4. 1093 20. 1106
5. *1132 21. 1095
6. *1131 22. lati
7. *1132 23. 1QS9 D
8. 897 24. 1100
9. 998 25. 1115
10. *1139 26. *1122
11. *1143 27, 1113
12. *1133 28. 1098
13. 1113 14, 1103
15. *1136
16. *1144 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 lovel exceeds the 100% line (or the restricted power level line). In such c'.ses the average daily unit power output sheet should be footnoted to explain the apparent anomaly.

  • Due to Condenser Efficiencies (227/2D050)11

1

..: :i ~ ,

1D. ' UNIT SHUTDOWNS / REDUCTIONS- DOCKET NO.:-50-457

, UNIT: Braidwood 2:-

DATE: 03/10/91 5 COMPILED BY: K. M. Dundek TELEPHONE:-(815)458-2801 ext.'2480 REPORT PERIOD: February, 1991' t

No DATE TYPE HOURS REASON METHOD LER NUMBER SYSTEM COMPONENT CAUSE & CORRECTIVE ACTION TO PREVEE RECURRENCE 1 910202 S 0.0 A 5 N/A RC FT . Power was reduced to replace a Reactor Coolant-  ;

system flow transmitter that was discovered to be out'of tolerance.. Af ter the replacementi was. completed, the unit was returned to' full.

power.

  • 2 910208 S 0.0 A 5 N/A HD P The non-essential service water lines to the j 2A Heater. Drain Pump began to leak. Power'was }

reduced to complete repairs. After completion'  !

of repairs, the unit was returned to full

. power. ,

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      • eme*********** -

SUMMARY

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TYPE REASON METHOD SYSTEM & COMPONENT F-Forced A-Equipment' Failure Maint or Test 1 - Manual Exhibit F & H S-Scheduled B-Maint or Test. 2 - Manual. Scram ' Instructions for Preparation of l C-Refueling 3 - Auto Scrts Data Entry Sheet- ,

a D-Regulatory Restriction 4 - Continued Licensee Event Report i E-Operator Training & License. Examination- 5-'- Reduced Load (LER) File (NUREG-0161).

F-Administration- 9 - Other

%Oper' Error.

OOther .

(227/ZD85G)12

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E. UNIOUE REPORTING REOUIREMENTS - UNIT 2'

l. Safety / Relief valve operations.-

VALVES NO & TYPE PLANT DESCRIPTION DATE ACTUATED ACTLATION CONDITION OF EVENT __

None

2. Licensee generated changes to ODCM.

None (227/ZD85G)13

L-r, LirENSEE_EVEt1T_REEDRTE_ ._UH1T_2 The following is a tabular summary of all License 9 Ever.t Reports snbmitted during the repotting period, February 1 through February 20, 1991. This infermation is provided pursuant to the reportable occurrence reporting requirements as set forth in ~.0 CPR 50.73.

Licensee Event Report Repstt Number _ Date Title _oL0csurrence Nono 6

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(227/ZD85G)14

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