ML19289C521

Monthly Operating Rept for Dec 1978

ML19289C521
Person / Time
Site:	Pilgrim
Issue date:	01/09/1979
From:	Mathis C BOSTON EDISON CO.
To:
Shared Package
ML19289C516	List: ML19289C515 ML19289C521
References
NUDOCS 7901170230
Download: ML19289C521 (6)

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OPERATING DATA REPORT 50 293 DOCI'ET NO.

DALE 'l/09/ F CO.\\lPl.ETED hY.C_,_J_,11ati.!j s 1 ELI.PllON E.617 746_7900 OPER A~l!NG STAl f!S

1. Unit Name:

Decerber. 19]J.

2. Reporting Period:

1998

3. Licensed T!:ermal Poe.cr 151Wti:

678

4. Namepbte Ra:ing. (Grou 31We):

655

~

5. Design E'.ectrical flatin;:(Net 51We):

690

6. Maximum Depeud:1 le Capacity (Gross MWe):

670

7. Maximum DependaMe Cap:: city (Net Mh'e):

8. If Chan;es Occur in Capacity 112 tings (Items Number 3 Throu;h 7) Since Last Report. Gise Reasons:

NONE

9. Power Level To hhich Restricted.lf Any (Net MWe):

NONE

10. Reasons Fer Res:rictions. If Any:

N/A This Month Yr..to Date Cumula tis e 744.0 8760.0 53136.0

11. Ilours In Reporting Period.

744.0 7391.0 37047.7

12. Num! er Of Ilours I.eactor Was Critica!

0.0 0.0 0.0

13. Reactor Resene Simtdown !!ours

/400 7280.6 35722.6

11. Ilours Generator On-Line 0.0 0.0 0.0

15. Lhit 11c3crve Shutdown liours 032.0 13289568.0 58441800.0

16. Gross Thermal Energy Generated (MWi!)

17. Gross Electrical Energy Generated (MWif) 491230.0

18. Net Electrical Energy Generated (MWil)

__472583.0

, 4550940.0 19130474.0 4376666.0 18361564.0

19. Unit Senice factor 100.0 83.1 67.2 100.0 83.1 6.7

20. Unit Asai' ability Factor 94.8 74.6 51.6

21. Unit Capacity racter (thing MDC Net) 97.0 76.3 52.8

22. Unit Capacity Factor (!hing dei! Net)

23. Unit Forced Outage Rate 0.0 8.2 10.7

24. Shut.lov.ns Schedt. led Oser Nest 6 Months (Type. Date, and Duration of Each::

NONE

25. If Shut D.r..n At 1:nd Of Report Period. Estim..ted D.ite of Stutup: UNIT OPERATING 2b. Units in Test Status tPiiar to Connucreial Opciations:

forecast At hies ed INill \\!. C1!!T:CTI.lTY INI I I A 1. I'.Ll.C TR 101T Y COMMl'i CIAL 01'!:11A T ON 01/~ 7 )

r, 90117023S*

AVERAGE D-\\lLY UNir pOhER LEVEL 50-293 DOCI'ET NO.

PILGRIM I UNIT DATE 1/09/79 CO\\fPLETED ljy C.J.MATHIS TELEPilONE 617-746-7900 MONTil DECEMBER 1978 DAY AVER AGE D A !LY POWER LEVEL DAY AVER AGE DAILY POWER LEVEL

(.sfhe.Negg (MWe Ner

611,

7 2

241*

Is

659, 3

444*

660, j9 4

587*

661, 20

~

660, y;

660*

661, 6

661-7

661,

'3 a-8 661*

660,

, 4 659*

661, 9

, 5 662*

10 660*

26 661*

661, 11 660*

I2

662, g

13

661, 662, 29

660, 660, 34 30 15

660, 660, 3

16

660, INSTRUCTIONS On r!as ti.r.nar hsr the ne.,;e Jr:3 unn p,,%r N m me Net t'or each dn in the repiirttnc nn. nth. Ciin'pu'e ti.

the near:5! wimle m 3mrt.

(4 /77 )

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UNIT SliUTDOWNS AND POWER REDIJCTIONS DCCKET NO.

50-293 UNil NA',:E PITGRIM I DArg 1/09//9 RErc:!T S ONT!! DECEMBER 1978 COMPLET ED ;ty C.J.MATHIS TELI r;IONE 617-746 7900

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,EM i s.censee 5-(

c9 Cause & Currective No.

1)aie g

3g g

jgy 3; ten 77 pg.,

ag,gn,g AE 5

2@g Report #

5' 0 5'

Present Recurrence e

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O 19 12/02/78 s

0.0 B

1 78-55/3L-0 RB VALVEX Power reduction for Rod Pattern change, scram testing CRD, and backwash main condenser. Two CRDs would not scram because of broken seat plugging the exhaust port of scram pilot valve. Parts replaced in kind.

I 2

3 4

F: Fors ed Reason:

Metliod:

Exlubit G - Instinctions S. SJicdu!cd A 15 nipinent Failure (Explain) 1412n ual for Pieparation of Data

!!at.:intenance of Test 241an ual Serain.

1.ntry Slieets for 1.icensee C RefuJmg 3 Autoinatic Scrain.

Esent 1;epuit (I l'R) File iNilREG-D. Regulatory llestriction 4 Other (Expl.iin) 0161)

I' Operator Tr.uning & l.icense Exa :!ination F AJnunistrair.e 5

G Operattonal 1.nor (Explain) 01/77) 11 Oslier (E xplain)

Esintut I - Saine Source F

PILGRIM NUCLEAR POWER STATTON Month M.IOR SAFETY RELATED l'AINTENANCE iSTTl!

COX?CNENT MALFUNCTION CAUSE MAINTENANCE CORRECTIVE ACTION ASSOCIA,iED LE.

m nwurt - vernnnevre Scram Pilot 5

Valves Blocked exhaust port Nylon piston Replace pilot valves Preventive maintenance to re-78-055/03L-0 broken place pilot assembly.

3 CRD directional Clogged seats Teflon seats Replaced seats Operations instructions to NONE solenoid valves extruded reset scrams as soon as possible.

23 HPCI Turbine Oil Leak Gage Line Replaced gage line N.A.

78/ 057/03L-0 broke S

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.RE14tEL1!!G IN!'ORf TAT 10ft

'lhe following refuelin;; Information is included in the Ifonthl'y Report as rqquested in a 1ctter to !!r. G. C. Andonnini dated. January 18, 1978

'. For your convenience, the information supplied has been enumerated so that each number corresponds to equivalent notation utilized in the request.

1 The name of this facility is Pilgrim Nuc1 car Power Station, Docket No. 50-293 2

Scheduled date for next Refueling Shutdown:

January 1980 3.

Scheduled date for restart following refueling:

April, 1980 4.

5.

Due to their similarity, requests 4, 5 & 6 are responded to collectively:

6 The fuel, which is presently expected to be loaded during the next scheduled shutdown, may be reload fuel of a neu design and may therefore require a proposed license submittal and technical specification changes.

It is not possible, however, to supply pertinent information on dates.

As information concerning fuel design, core configuration, Operational Review Conmiittee determinations, proposed licensing action, and technical specification submittals becomes available, it will be forwarded to you.

/

(a)

There are 580 fuel assemblies in the core.

07 (b)

There are 580 fuel assemblies in the spent fuel pool.

8.

(a)

The station is presently ifcensed to store 2320 spent fuel assemblies.

The actual spant fuel storage capacity is 830 fuel assemblics and new high density fuel storage racks are in the process of being installed.

(b)

The planned spent fuel storage capacity is 2320. fuel assemblics.

9.

Uith present spent fuel storage capacity, the spent fuel pool does not have the capacity to accommodate an additional 580 fuel assemblies.

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BOSTON EDISON COMPANY PILCRIM NUCLEAR POWER STATION DOCKET NO. 50-293 SUME\\RY OF OPERATIONS FOR DECEMBER, 1978 The month of December began with the unit operating at 100% power.

On Saturday, December 2nd the reactor power level was reduced to 50% to backwash the main condenser and charge the control rod pattern.

At the conclusion of the backwash and control rod pattern change, the power level was increased at 10MWT/hr. until 100% power was readied on Tuesday, December 5th, at 1530 hours0.0177 days <br />0.425 hours <br />0.00253 weeks <br />5.82165e-4 months <br />.

On Saturday, December 8th, the power level was reduced to 90% for twenty minutes for the purpose of exercising selected control rods.

The unit remained at 100% power until Saturday, December 16th at which time the reactor power 1cvel was reduced to backwash the main condenser and replace the brushes on the "A" recirc. M.C. set.

At the conclusion of this work the unit returned to 100%.

The unit remained at 100% power level until Sunday, December 31st, at which time the power level was reduced for 30 minutes to exercise selected control rods.

The month closed out with the unit operating at 100% power.