ML20050C756

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Monthly Operating Rept for Oct 1981
ML20050C756
Person / Time
Site: Maine Yankee
Issue date: 11/10/1981
From: Doyle A
Maine Yankee
To:
Shared Package
ML20050C753 List:
References
NUDOCS 8204090330
Download: ML20050C756 (8)
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Text

I MAINE YANKEE NUCLEAR POWER STATION MONTilLY STATISTICAL REPORT 81-10 FOR Tile IIONTil 0F OCTOBER, 1981 0204090330 811110 PDR ADOCK 05000309 R

PDR

a

f OPERATING DATA REPORT DOCKET NO. 50-309 DATE R1111n COSIPLETED,BY A.

F.Doyle TELEPl!ONE 617-872-8100 X2390 OPkRATING STATUS Notes

!. Unit Name:

Maine Yankee October, 1981 Power level restricted by

2. Reporting Period:

2630 steam flow through #1 low

3. Licensed Thermal Power (31Wt):

864

4. Nameplate Rating (Gross 31We):

pressure turbine.

825

$. Desi n Electrical Rating (Net alWe):

2 850

  • Titne Zone Change 10/31/81.
6. Stasimum Dependable Capacity (Cross 31We):

810

7. Statimum Dependable Capacity (Net S!We):
8. If Changes Occur in Capacity Ratings (!: ems Number 3 Through 7) Since Last Report.Gise Reasons:

835 MWe (s97%)

' 9. Power Leiel To Which Restricted.lf Any (Net 31We):

See Notes

10. Ressons For Restrictions. lf Any:

This alonth Yr..to.Dste Cumulative 745.00*

7.296.00_

i1. Ilours In Reportin2 eriod P

723.00_

5.694.87-61.450,84

12. Number OfIlours Reactor Was Critical 0.00 0.00 0.00
13. Reactor Resene Shutdovm Hours 667.40 -

5.47R.IR 61 ?R6.43

14. Ilours Generator On Line 0.00 0.00 0.00
15. Unit Resene Shutdown flours 1,575,609.00 13,233.909.00_.132.612,138.00
16. GrossThermal Ener;y Generated (31Wil) 507.830.00 4.333.600.00 43.535.760.00
17. Gross Electrical Ener;y Genersted (5thlf) 483,323.00 4.13!.I70.00 41.362.495.00
18. Net E!ectrical Ener2y Generated (31Wil)

RO 9R -

7A An 77_97

19. Unit Service Factor 89.58 _

74.40 77.87

20. Unit Availability Factor 80.09 69.90_

6?.60

21. Unit Capacity Tscror (Using \\lDC Net) 78.64 68.63.

65,50

22. Unit Capacity Factor (Using DER Net) in A?

2. 9.4. _.

7.10

23. Unit Torced Outs;e Rate
24. Shutdowns Scheduled Over Nest 6.!onths (Type.Date.snd Duration of Eschi:
25. If Shut Down At End Of Report Period. Estimated Date of Startup:
26. Units in Test Status (Prior io Commercial Operation):

Forecast Achieved INITIA L CRITICA LITY lNITIA L ELECTRICITY CO%talERCIAL OPER ATION i

'(0/77)

AVERAGE DAILY UNIT POWER LEVEL t

DOCKET NO.

50-309 UNIT Maine Yankee DATE 811110 A. E. Doyle CONIPLETE{ BY TELEPHONE A17-979 0100 x2390

~

OCTOBER, 1981

.\\lONTH -

DAY AVERAGE DAILY POWER LEVEL DAY AVER AGE DAILY POWER LEVEL (31We-Net)

(31We-Net; 3

__ 785 37 658 784 13 731 2

760 785 39 3

772 786 20 4

771 783 21 5

674 787 23 6

0 7

785 23 0

g 786 24 0

789 25 9

583 640 26 10 641 27 786 11 657 776 g;

28 786 668 29 13 668 792 34 30 377 667 3g IS 663 16 INSTRUCTIONS On this format. list the asersge daily unit power leselin StWe Net for each day in the reporting snonth. Compute to the nearest whole megawatt.

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UNITSilUTDOWNS AND POWER REDUCTIONS DOCKET NO.

50-309 UNITNAhlt Maine Yankee

,.DATE 811110 REPORT hlONT11 OCTOBER. 1981 COhlPLETED ilY _ A. L Dovie TELErilONE T17-872-8100 X2%

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$.Y 9 Licensec 5-r,,

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Cause & Corrective No.

Date g

g

,8 g 5 Event gy og Action to c$ 5 5,

H 3 5, {c:

Report

  • in u gU Psevent itecurrence

.u O

10/10/81 -

0.0 Routine load reduction to perform

'^/ U /07 SD NO-5 bot g5 HA VAINEXtU monthly surveillance testing of the turbine yalves and to perform mussel control operations on the service and circulating water headers. Load re-duction extended due to ruptured dis-charge expansion joint on P-26D circu-o -()

5

"'i"" "^ P"*P-10/19/81 F 9 11 f

DIC EB RELAYX O Potential transformer fuses for UV relays on 4160V bus 3 momentarily de-energized causing loss of a condensate and two circulating water pumps. Fuses

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dd f_4M ]Y were inadvertently disconneA tag chilc j1 p!laet,(Js,c/g to@.

ning cubicle 10/22/81 F

-gip B

T AC CB PUMPXX O lorced Inau reduction [med unit shutdown ',

-13,0 3.

due to unreliable iube oil icvel indi-cation on #2 RCP. (N'-T = _

a614 1

2 3

4 F: Foeced Itcason:

hiethod:

Exhibit G -Instructions 5: Scheduled A.Espiipment Failure (Explain) 1 klanual for Pseparation of Daia n.klaintenance or Test 7 hfanual Sersm.

Entry Shecis for Licensee C.lterocling J. Automatic Scram.

Event Itepori (LI!!ti File INUlti.G-D.Itegulatoiy itesiriction 4 Other jf xplain).

0161) li Decutor Trairing & Ucense Examination oAm IL Ailminist eative g - /2ac/M 5

G tIpesali.u.il I.isor (limpl.iin)

E alubit I Same Source l'8/17) 11 (Ilhes Ilimpi.iin)

$ _ gg

UNITSilU1 DOWNS AND POWER REDUCTIONS DOCKET NO.

50-309 UNIT NAhlE Maine Yankee DATE 911110 CONIPLETEDitY A-E.

Dovle REPORT AIONTil OCTonFR - 1081 TELLPIIONE 617-872-8100 X23 I

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3a S*

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,sa L.icensee Cause & Correceive -

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Nii.

Daic R

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Event 7

e Atiion to g$ 3 5,

3.c (5 c ReporI #

V3 O 5U l'revent itecuracnce H

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r>

u.s 10/31/81 F

Nh-i-A 4 1

1R CB PUMPXXQ

'a.

nd unit shut-down due to unreliable lube oil 1cvel indication on #3 RCP caused by faulty

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._- -N transmitter.

~l0l3ff61 f C,0 C. $

fM W W G2 MC O A' Te Awaf pel&su.

I 2

3 4

F: Finied Itenon:

htettend:

Exinbit G - Insituctiims S: St heduled A l'epiirrnent Failure (Explain) 1.hlanual ro, Picparation of Data B. Alaintenance of Test Nianual Scisin.

Entry Slieces for Licemce C-Itefueling 3 Automatic Scram.

Event Itcpini (Lliiti role INUltI:G.

D Itegulatiny itesitiction 4 Other (Explain) 0161) li Opci.itor Tiaining & License Examination 1: Ailininitisative 5

q h,q G Opesaiiucial I seus (I!aplaini

/

1:=luliin I Same Somu 08/17)

It UiliesIEmplaini

UNITSilUTDOWNS AND POWER REDUCTIONS DOCKET NO.

50-309 UNIT NAME Mainc Yankee

..DATE R11110 I

REPORT MONTil OCTOBER. 1981 COMPLETEDtly A.

E, nc.v i e TELLPil0NE 617-072--8100 X2390 6*L Cause & Corrective c

en 3 -a 0 L,censee c%,

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,.s 4 i

g No.

Date g

ij g jj5 Event u?

91 Action io F-f=

5c Report

  • r#G gu l'revent itecurrence f

U r-c 10/10/81 -

Routine load reduction to perform 10/17/81 S/F 178.5 B&A 1

NA HA VALVEX-C monthly surveillance testing of the FH PIPEXX-E turbine valves and to perform mussel control operations on the service and circulating water headers. Load re-duction extended due to ruptured dis-charge expansion joint on P-26D circu-lating water pump.

10/19/81 F

5.9 H

1 NA EB RELAYX-D Potential transformer fuses for UV relays on 4160V bus 3 momentarily de-energized causing loss of a condensate and two circulating water pumps. Fuses were inadvertently disconnecting while opening cubicle.

10/22/81 F

93.8 B

2 NA CB PUMPXX-B Forced load reduction and unit shutdosm due to unreliable lube oil Icvel indi-cation on #2 RCP. (unit shutdown 73 hrs )

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1 2

3 4

F: rinsed Iteasim:

Meilmd:

Esinbit C-Instructions 5: Stlied uled A. Equipment Failure (Explain) 1-Manual for Peeparation of Data B Maintenance of Test 7 Manual Scrsm.

Entry Sheets for Licemce C ItcIucting.

3 Automatic Scram.

Event Iteport (LElti rde INUltEG.

D Itegn!.iiiny Restriction 4-Ot her (Explain) 0161)

E Opeutor Training & Ucense Examination F Administutive G O.euin.nal I nor IExpl in)

Eminini I Same Somsc i

P8/17) 11 Oilici IE m plain)

~~

UNITSilull) OWNS AND POWER REDUCTIONS DOCKET NO.

50-309 UNIT NAhlE Maine Yankee DATE 811110 COMPLETEDitY __. A.

E.

Dovle REPORT MONTil N m"D - 1981 TELEPIIONE 617-872-8100 X2390 i

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E

.c 4 Licensee c%

c" Cause & Corrective No.

Date g

gg

,g g 5 Event

=7

@.g At: inn so c5 'd E

j5j I'CPo't

  • AU yU Prevent itecussence 6

10/31/81 F

20.1 A

1 NA CB PUMPXX-B Forced load reduction and unit shut-down due,to unreliable lube oil Icvel indication on #3 RCP caused by faulty transmitter.

(unit shutdown 4.6 hrs.)

I 2

3 4

F: Fors ed Itcason:

Method:

Eshibit G. Inst:uctiims S: Sclieduled A.0quipment Failuie(Explain) 1 Manual for Pacpaution of Dau Il-Maintenance of Test

? Manual Scram.

Entry Sheets for Licensee C.itefucling 3 Automatic Serain.

Evens Itcpani (Ll!!!) File INUlti'.G.

D.Itegulatiny Itcs:riction 4 Other (Emplain) 0161) li Opeutor Tsaining& Ucense Examination I:. Ailminist utive 5

G Opoational I ni.e Ilinplain)

Eminleis I Same Source 07/17) 11 Othe Ilimplain)

4 DOCKET NO.

50-309 UNIT Maine Yankee I

DATE gill 10

(

t CO:4PLETED BY A. E. Doyle TELEPif0NE 617-872-8100 X2390 4

REPORT MONTH OCTOBER, 1981

)

SU:P!ARY OF OPERITING EXPERIENCES s

The plant was at full load at the beginning of the month.

1 On October 10th, a load reduction to 75% was performed in order to complete routine monthly surveillance testing of turbine valves and to perform mussel-control operations on the service and circulating water headers.

The load reduction was extended due to a ruptured expansion joint on the discharge of l

P-26D circulating water pump. The plant returned to full power on October 17.

On October 19, a load reduction to 81% was performed when the undervoltage relays to 4160 volt bus 3 were inadvertently deenergized. Power was momen-tarily interrupted to P-27A condensate pump and P-26A and P-26C circulating

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water pumps. Tlic plant returned to full power on October 19.

On October 22, a plant shutdown was performed to investigate and repair an unreliable lube oil IcVel indication on #2 RCP.

The plant returned to full i

power on October 26.

l On October 31, a load reduction and unit shutdown was performed to investigate a faulty lube oil level indication on #3 RCP. The plant was returning to full power at the end of the month.

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