ML20077C450

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Monthly Operating Repts for Apr 1991 for Byron Nuclear Power Station Units 1 & 2
ML20077C450
Person / Time
Site: Byron  Constellation icon.png
Issue date: 04/30/1991
From: Ehle D, Pleniewicz R
COMMONWEALTH EDISON CO.
To:
NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
References
BYRON-91-0351, BYRON-91-351, NUDOCS 9105210421
Download: ML20077C450 (14)
v • d • e


Text

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._ Dyron Nuclear Station Ui. 4460 North German Church Road

. Byron, Illinois 01010 May 8, 1991 LTR DYRON 91-0351 PILE: 2.7.200 Director, Of fice of Managernent Inf o rmation and Program Control United States Nuclear Regulator *, Commission Washington, D.C. 20055 A*I*Ill s Document Control Desk Gentlemen Enclosed for your information is the Monthly Performance Report covering Byron Nuclear Power Station for the period Aptl1 1 t! rough April 30, 1991.

Sincese.y, Jet m f '

R. Plenlewicz Station Manager Dyron Nuclear P wer Station RP/DE/m1m (0625M/0062M) cci A.B. Davis, HRC, Region III NRC Resident Inspector Byron Ill. Dept. of Nuclear Safety M. J. Wallace/K.L. Graesser Nuclear Licensing Hannger 11uclear fuel Services, PWR Plant Support D. R. Eggett, Stat.lon Nuclent Engineering INPO Records Center A. Hsia - tlSHRC o rs 3 ,. ,,,

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.I-l 11YR0!! If0 CLEAR PCHER STATIO!I i

UlllT 1 AllD U1117 2 H0HTilLY PERTORMANCB REPORT  !

COMMollWEALTil EDIStU COMPAliY i

!!RC DOCKET 110. 050-454 HRC DOCKET HO. 0$0-45$

P LICEtiSE 110. ItPr 37 >

LICr.tlSE 140. NPP-66 1

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( 0625M/ 0002t4/1)

3. Holtth3y_AepstLLot_Eyron_ UNIT .1 f ur_thcJnonth_oLApr11_1991 A i_S wanty_n L0p e rating _Expe11e n c e_lo r._U ni L_1 f

, The unit began this reporting period in Mode 1 (l'ower Operation) and l 4

remained there all month. The power level varied due to lond following  ;

requirements.

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(0625M/0062M/2)

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

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

11dDPERAT1HG DATAltrohI DOCKET NO. 050-454 UH17: liyron One DATE: 05/8/91 COMPILED DY: D. Ehle TELEPittHIE (815)234-5441

, x2263 I l

OPERAT1HG STATUS
1. Reporting Period: April, 1991. Gions llours 719
2. Currently Authorleed Power Levels 3411 (MWL) '

Design Electrical Rating: 1175 (MWe-grons) j Design Electrical Rating: 1120 (MWe-net) '

Max Dependable Capacity: 1105 (MWe-net) *

3. Power Level to Wh1ch Restr1cted (If Any): N/A t
4. Reasons for Restriction (If Any):

i Tills MONTil YR 70 DATE CUMULATIVE *

5. Report Period firs. 719 2,879 49,272 b
6. Rx critical llours 719 2,879 40,563.2
7. Rx Reserve Shutdown flours 0 0 38
8. Ilours Generator on Line 719 2,879 40,034.0
9. Unit Iteserve Shutdown lloura 0 0 0
  • 10. Gross Thermal Energy (MWil) 2,343,180 9,339,650 122,212,254
11. Gross Elec. Energy (MWU) 798,740 3,169,746 41,250,826
12. Net Elec. Energy (MWil) 760,013 3,013,997 38,926,262 i
13. Reactor Service Factor 100 100 82.3

~

14. Reactor Availability Tactor 100 100 82.4
15. Unit Service factor 100 100 81.3
16. Unit Availability rector 100 100 81.3
17. Unit Capacity ractor (MDC net) 95.6 94.7 71.5
18. Unit. Capacity iactor (DER not) 94.4 93.5 70.5
19. Unit Forced Outage Hrs. 0 0 -1,266.4
20. Unit Fort:ed Outage Rate 0 0 .3 .1 21.' Shutdowns Scheduled Over Hext 6 Monthst. t%10 1 fourth refuel outage..
22. If Shutdown at End of Report Period. Estimated Date of Startup:
23. Units in Test Status (Prlor to Commercini Operation): None -
  • Note - The cumulativo numoers do not reflect power generated prior to commercial service.

(0625M/0062M/3)

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Ci_.AYERAGLDAILLUHILt0HER LEVEL DOCI:ET lio. : 0',0-454 U1417: Tyron One f DATEt 05/8/91 CC04 PILED BY D. Ehle i TELEPilot4E (815)234-$441 x2263  !

MO!iTil April, 1991 DAY AVERAGE DAILY POWER LEVEL

( MWe -fie t )

1. - 10s LMM -_ _
16. _._ 100LMN
2. 100 LMW - --- l' 10hLMR .
3. __.. _ __10 0 LMW _ 16. __ _-_10h LHM- ,
4. 102LMN _ _ _ _ . 19 . _. _ _10 0.9JN__ _ . .--

L. _ _ _ _ _ l 0 t hR _ ... _ - .._. _ . 2 0 . ___. _ 100L MM . i

6. _ "12 LMM. - 21. 101LHW - _

- 7. _ _ . _ .- ' R MM__ . . _ 2 2. _ 10$LMM ._

8. _- -  ; _.LMR __ 23. _ 10M_MW _ __

t

9. 1000..HM__._ 24. 1099E - 1
10. 10hl.MW _ 25. 1099 E _ _  ;
11. 10 04_MR _ 2 6. _ _ - __10%JM __
12. 1009_MR _ _ _ _ 27. 10t L MR._ _
33. _AsLMN 28. 104 LMN
14. .- 1950_MW , 29. .100LMR
15. _____._ .,_ _.1039 ] N _ _ _ 30. _. _. 10$ L}M_
31. --.:--- ._._ _ _ .

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INSTRUCTIONS On this form list -the overage daily unit pc.wer level in MWe-tiet for ench day ,

in the-reporting month. Compute to t.he near est whole megawatt. These figures will be used to p1_ot a graph f or each reporting mont.h. Ilote that when maximum dependable capacity is used for the net electrical rating of the unit there

may be occasions when the daily.nyerage power level exceeds the 100%-11ne (or the restricted power level line.) In such cases the average daily unit i- power output sheet should be footnoted to explain the apparent anomaly.

(0625M/0062M/4)

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. . 1 E EUH10V E_RE EORTlN Q _ RE QQ1EEMENTSJ UN T L1LI 9 tthc_.m n t1L o llipI1L1991

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1. Safety / Relief valve operations for Unit One.

1 VALVES HO f. TYPE PLANT DESCRIPTIO!i DATE ACTUATED ACn'ATIRN CONDITION OLEYINT ,

None

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

. On-Site Review 91-062, Off-Site Dose Calculation Manual Rev. 0.A.

including Dyron Annex Rev. 0.A. acceptable for use April 25, 1991.

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

No_ ruel Reliability Indicatort FRI = 1.7E-4 pC1/cc

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T.. LICE 11SEE.EVEliT REPORTS (UNIT _1)

The following la a t abular stunmnt y of all Licensee Event Reports fot flyt on Nucient Power Titatloti, Unit One, submlt t ed dut ing t he iepottIng perlod, April 1 through Ap: 11 30, 1991. This information is provided puri;unnt to the scpottable occurrence reporting requisements as set fotth in 10CrR $0.73.

Occurrence Elcen6ee_.EvenLFepo rt Nutnbe r Pote Title _of.OccutIence 91-001 3 12-91 rt;r Act unt ion enused by volt nge t t anslent s from 345 KV line ttips during wind /lco storm.

(062SM/0062M/7)

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11. Mon thly..R epo r t_ Lo r_Jyr on 3N I T . L i o r_the_ mo nth. 0 lap r 1 L1991 A.- Swmary_oL0perating_Esperience_.f otJnit 2 The unit began this reporting period in Mode 1 (Power Operation) and l continued there all rnonth. The power level varied due to '.iad following l l requirements. l 4

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, (0625M/0062M/8)

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D._ . 01' ERAT 1HG. DATA.It!; PORT DOCTET 110. 050.455 Uli!T 11yron Two DATE: 05/0/91 COMPILED 11Y : D. Chle TE LE l'Holi E t (015)234-5441 x2263 OPEHATING STATUS

1. Repotting Perlod: Apr11, 1991. Gt oss llout s 719
2. Cur rent ly Authorired l' owe r Level 3411 (MWt)

Deolgn Electtical Rating: 1175 ( t@le -g r o s s )

Design Electrical Rating: 1120 (MWe-net)

Max Dependable Cepacity: 1105 (MWP-net)

3. Power Level to Which Restileted (If Any): 11/ A
4. Reasons for Restiletion (If Any):

Tills liollTil YR TO DATE CUMULATIVE *

5. Report Period Hrs. 719 2,879 32,376
6. Ex Critical flour s 719 2,079 27,611.1
7. Rx Reserve Shutdown llours 0 0 0 H. Ilourn Generator on Line 719 2,879 27,163.6
9. Unit Reserve Shutdown llouts 0 0 0
10. Gr oss Thortnal Energy (MWH) 2,341,058 5,225,954 73,736,146
11. Gross Elec. Energy (MWil) 798,248 3,218,099 24,956,194
12. Not Elec. Energy (HWil) 759,753 3,062,193 23,466,522
13. Reactor Service factor 100 100 8 5 . ,$ $@ 8 (
14. Reactor Availability factor 100 100 85.3
15. Unit Service factor 100 100 83.9
10. Unit Availability factot 100 100 83.9 17 Unit Capacity Factor (MDC net) 95.6 96.3 65.6
10. Unit Capacity ractor (DER net.) 94.3 95.0 64.7
19. Uni t For ced Outage lir r. . 0 0 886.4
20. Unit Forced Outage Rate 0 0 3.2
21. Shutdowns Scheduled ovet flex t 6 Monthn: flone
22. If Shutdown at End of Repott Iorlod, Er,t imot ed Date of St at t up:
23. Units in Test Status (Pziot t.o Commetcial Operation) lione
  • 110te - The cumulat Ive numbers .to not reflect power generated prior t o corr.ne t c i a l service.

(0625M/0062M/9) l

C._ AVERAGLPAILLUNIT_11MLIL LEVEL DOCKET 140. 050-4tb U!a lT : byron Two DATE: 05/8/91 cot 4 PILED 11Y : D. Ehle TF 1.E PilOliE : (815)234-5441 x2263 MOllTil Apt 11, 1991 DAY AVERAGE DAILY l'OWER LEVEL (MWe -tie t )

1. ___ _10 0 7_ . tM _ _.._ ___ _ . _ ..._ _ _ _ 16. _ _ _ _ _ . _ . _ 924.MW _ _ . _ _ _ . _ _ _
2. .__ _ __ _ 1001 M O _..

17 . .99L MW.

3. _. 100LJN _ _ __.__.___ 18. . __10 9 3 IN __ _ _ . _
4. __ _ _.__10 0 2 JM___ __ ___._ _ __ 14 _ _ _ _109 3 }N
5. __ __ _. __.___10 $ L lN _ _ . . 20. _ _ _. _ _. _ __9 0 4 .MW _ ____
6. ____10_10 JM__.._ __ _ _ _ _ 21. _ ___ . ____ __11 1 L IN _. . __ _ _.._
7. __.___._...1037 IN _ ___. . _ _ 22. ___ .. ._110 L MW _ . _ . . _ _ .
8. .__ 10 0 9. lN_._ __
23. __,___ _ _111LIN ___._ ._ _ _ _
9. __. . _ 1 01 0_ M W _ . _ .._. . _ _ _ _ _ 24. _._._.. _ ___.__110 L MW. _ _ _ _ _ _
10. _ 106 LMW ____
25. ._._ __ _ _ 1033_MW_,._.____._..___
11. _ _ l l l2 .J N __._ _ _ _._ __
26. . _ . . . _ . . __3000_MW . ___
12. . .1095._MW_ _ _ . . 27. __ __ ___ _ 9 3 0 JN ___ _ _ _ _..
13. __l02.L MW ._ 28. _ _ .____ _ 103 LIM ___.._. _ _
14. 1.010_IN 29. _ . . ._ _.__10 b 5 3M. . . . _ _ _ .
15. 1019_MW __ 30. __ .1000 JM __. _ _ _.
31. ._ _. ___ ,_------- . . _ . _ _

I!1STRUCTIONS On this form list the average daily uni'. Pow e' r level in MWe-tiet foi cach day in the reporting month. Compute to the nearert wholo megawatt. These figurer, will be utsed to plot a graph for each repor t ing mont h. 110 t e that when maximum dependable capacity is used for the net electrien1 rating of the unit there may be occasions when the daily average powet level exceeds the 100% line (or the restricted power level line.) In such casen the average daily unit power output sheet should be footnoted to explain the apparent anomaly.

(0625M/0062M/10,

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t UH10UE_E110ETIliLREQUIEDIEHIS.1UH1L2LicI_the anonLitoLApriL1991

1. Safety / Relief valve operations for Unit Two.

VAtNES HO & TYPE PLANT DESCRIPTION DATI ACTUATLD ACTUATION CQtiD1110H OfEtT Hone t

2. Licensee generated changes to DDCM. (X/N)

On-Site Review 91-062, Off-Site Dose Calculation Manual Rev. 0.A. Including Dyron Annex Rev. 0.A. acceptable for use Apr 1 25, 1991.

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

Yes ruel Reliability Indicatort TRI = 3.4-4 pCl/cc (0025M/0062M/12)

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L LLCULEEE IYINT._REl'ORTE_1Ulf1L2.)

- The following is a tabular stunmary of -all Licensee Event Repor ts for Byron Nuclear Power Station, Unit Two, submitted during the reporting period, April 1 through April 30, 1991. This information is provided pursuant to the reportable occurrence reporting requirements as set forth in 10CFR 50.73.

Occurrence Lic.tD122_htak. Report Nmnbet Datt Iltle of Occur 1Rnte 91-002 03-11-41 Contaltunent Emergency Hatch Surveillance snissed due to procedural deficiency.

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(0625M/0062M/13) i

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