ML19345H406

Monthly Operating Rept for Apr 1981

ML19345H406
Person / Time
Site:	Pilgrim
Issue date:	05/12/1981
From:	Whitney G BOSTON EDISON CO.
To:
Shared Package
ML19345H405	List: ML19345H404 ML19345H406
References
NUDOCS 8105200247
Download: ML19345H406 (6)

Text

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O OPERATING OATA REPORT 50-293 DOCKET NO.

.DATE ud/ u/ si COMPLETED BY G G. Whitney TELEPHONE 617-746-7900 OPERATING STATUS Pilgrim I Notes

1. Unit Name:

April. 1981 l

2. Reporting Period:

1998.

3. LicensedThermalPower(MWt):

678.

I

4. Nameplate Rating (Gross MWe):

655.

5. Design Electrical Rating (Net MWe):

90.

6. Maximum Dependable Capacity (Gross MWe):

670.

7. Maximum Dependable Capacity (Net MWe):

3. If Changes Occur in Capacity Ratings (Items Number 3 Through 7) Since List Report. Give Reasons:

None

9. Power Level To Which Restricted. If Any (Net MWe):

None

10. Reasons For Restrictions,if Any:

N/A This Month Yr.-to.Date Cumulative i

719.0 2879.0 73559.0 l

11. Hours In Reporting Period

12. Number Of Hours Reactor Was Critical 710.2 2603.6 52788.2 0.0 0.0 0.0

13. React-Reserve Shutdown Hours

14. Hours Generator On-Line 706.0 2574.6 51081.5

15. Unit Reserve Shutdown Hours 0.0 0.0 0.0

16. Gross Thermal Energy Generated (MWH) 1316736.0 4590528.0 86879904.0 17 Gross Electrical Energy Generated (Mk H) 453930.O 1551960.0 28881324.0 IS. Net Electrical Eneqy Generated (MWH) 436753.0 1492720.0 27743327.0 98.2 89.4 69.4

19. Unit Service Factor 98.2 69.4 o9.4

20. Unit Availability Factor 90.7 77.4 jo.3

21. Unit Capacity Factor (Using MDC Net) 92./

/9.2 a/.o

22. Unit Capacity Factor (Using DER Net, 1.8 1.6 10.0

23. Unit Forced Outage Rate

24. Shutdowns Scheduled Over Next 6 Months (Type. Date, and Duration of Each t:

Refuel Outage Commencing Septecher 1981 n

Operadng

25. If Shut Down At End Of Report Period. Estimated Date of Startup:

26. Umts in Test Status (Prior to Commercial Operation):

Forecast Achieved INITIAL CRITICALITY INITIAL ELECTRICITY COMMERCIAL OPERATION 8105200 @

N/77) l

AVERAGE DAILY UNITFOWER LEVEL 50-293 DOCXET NO.

Pilgrim i WT DATE 5/12/81 COMPLETED BY G.G. Whitney 6 17-746-7900 TELEPHONE April, 1981 MONTH DAY AVERAGE DAILY POWER LEVEL DAY AVERAGE DAILY POV R LEVEL (Mwe-Net)

(g w g.,3 668.

547, 1

63 3.

294.

IS 656.

307.

3 39 655.

599.

4 2.

462.

670.

21 351.

668.

6 487.

668.

23 667.

660.

3 24 591.

667.

9 25 637.

636.

10

s 665.

661.

662.

656.

g3 3

662.

649.

g3 658.

644.

g4 30 656.

o 15 3g 655.

16 INSTRUCTIONS On th:s format.!ist the. average dany unit power level in MWe. Net for each day in the repcmng month. Campute to the nearest wncie megawatt.

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50-293 IM)CKEI NO.

IINil SilllllM)WNS ANI) POWER REDilCIIONS UNII NAME Pilgrim I DAIE _5U2L81 CoMrs.E IED liv _n.__G.__Witit.ncy.

RI I'OR I' MON ill APRIL, 1981 IEl.EriloNE _(il7-746-7900 l

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~L Cause & Cenicctive 8

Action to No.

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,yu Event gg gU I-y.3 cE 5@C Iteport if

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b 6

81/04/05 S

0.0 B

5 N.A.

IIC llTEXCll Main Condenser Backwash 4

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7 81/04/06 F

13.0 A

3 N.A.

Z 7.

ZZZZZZ Unit trip due to high level in

'C' innisture separator.

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B 81/04/18 S

0.0 B

5 N.A.

IIC IITEXCil Repnirs inade to 'B' 3rd point henter f

expansion joint I

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2 3

4 F: l'orteil Reason:

Methoil:

Enhihlt (; - Instnitilims 4

1 S: Sc hriinics A Eqtilyment Falluse(Explain) 1 -Manual for Picparation of Data B Maintenance of Test 2-Manual Scram.

Entry Sheets for I.icensce C Ilefueling 3 Automatic Scram.

Event Repost (l.1:ltil'ile tNilRl(;.

D Regulatory Restriction 4.Othes (Explain) 01611 E Operator Tralning A IIrense I:xamination i

F.Administ atIve 5

l G Operational fision (1.xplain) 13hibit 1 - Same Somre I'8/if )

II Ollies (Explain)

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PILGRIM NUCLEAR POWER STATION 4

SUMMARY

OF OPERATIONS FOR APRIL, 1981 On April 1,1981, PNPS was operating at 100% reactor power. With minor power reductions for condenser delta tegerature, the unit operated at 100% until April 4, when power was reduced to 50% for a condenser backwash.

On April 6, while operating at 100%, a unit trip occurred while investigating problems with moisture separator level controls. High level in "C" moisture separator resulter'. in a turbine trip which scrammad the reactor. The unit was taken criticci and returned to 100% at 1800 hours0.0208 days <br />0.5 hours <br />0.00298 weeks <br />6.849e-4 months <br /> on April 7.

On April 9, the power was reduced to 75% to allow the 3rd point heater on 'B' feedwater train to be removed from service to repair a crack in the expansion joint.

The unit was returned to 100% peyer on April 10 and continued at this level, with minor reductions for eta. denser delta temperature, until April 18.

Da April 18 the unit was reduced to 50% power to mechanically clean the con-de:nser tubes and backwash.

The unit was returned to 100% power on April 20 and continued at this power until the end of the month with minor reductions for condenser delta temperature.

SAFETY / RELIEF VALVE CHALLENGES MR APRIL, 1981 Report Requirement: TMI T.A.P. II.K.3.3 No challenges for the month.

m

..c RN ING IN70pl!ATION

~he following refueling infor=ation is included in the P.cn hly Repor: as requested in a letter :o Mr. C. C. Andegnini da:ed Januan IS,1973:

For your con tenience, :he infor:a:1on supplied has been enu=ars:e.d so tha:

each nu=ber cc responds to equivalen: notation u:111:ed in :he request.

1.

• he na=a of this facill:7 is ?ilgri:: Nuclea: ?ower Sca:1ce, Occke:

Nu=ber 50-29 3.

2.

Scheduled date for nex: Refueling Shu:down:

Sep:e=ber. 1981 3.

Scheduled date for restar: following refueling:

4.

3.

Due :o their s1=ilarin, recuests i, 5, & 6 are responded to collec:17ely:

6.

The fuel, which had been loaded during the 1980 scheduled refueling is of the new ?SxfR design, consis:ing of appro:c1=a:ely 64 ou: age,

?SLR3232 assecblies and 120 ?SD?3265 asse=blies.

7.

(a)

~here are 580 fuel assemblies in the core.

(b) ~here are 764 fuel asse=clies in :he spent fuel pool.

S.

(a) he sta:1on is presently licensed :o s: ore 2220 spen: fuel assecolies.

~he ac:ual spen fuel s:orage capacin is 1770 fuel assa:blies a:

presen:.

~ e planned spen: fuel s:orage capacin is 2320 fual assemblies.

(b) n 9.

%'i:h presen: spen: fuel in s:orage, che spen: fuel pool now has :he apacip :o acco odate an addi:ional 1006 fuel assenblies.

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