ML19341A039

Monthly Operating Rept for Dec 1980

ML19341A039
Person / Time
Site:	Arkansas Nuclear
Issue date:	01/15/1981
From:	Bramlett L ARKANSAS POWER & LIGHT CO.
To:
Shared Package
ML19341A036	List: ML19341A035 ML19341A039
References
NUDOCS 8101210494
Download: ML19341A039 (5)

Text

- - = _ -

AVERAGE DAILY UNIT POWER LEVEL.

DOCKETNO.

50-313 UNIT ANO-1 DATE 1/15/81 C0\\lPLETED BY 1.. S. Bremlett TELEPHONE (501) 968-5519 MONTH December.1980 DAY AVERAGE DAILY P0h'ER LEVEL DAY AVERAGE DAILY POWER LEVEL (MWe Net) tMWe Neo.

3 588 i7 543~

4 540 is 543 3

560 39 544 4

554

~

o 544 s

546 541 21 543 6

541 7

543 23 540 8

536 1

24 401 26 25 542 i

10 459 26 543 ij 539 27 545 g,

539

,g 536 13 537 39 534 14 530 3o 535 15 542 3

53?

16 543 1

INSTRUCTI'ONS On this fntmat, list the average d:Sy unit piiwcr levelin MWe Net for each day in the reponmg month. Compute tu the nearest whole megawatt.

(9/77 )

t 8102 sin $f

OPERATING DATA REPORT

~ DOCKET NO.

50-313 DATE l-Ab-di COMPLETED BY L. 5. dramlett TELEPHONE (bul) 906-2519 OPERATIC STATUS N "'

Arkansas Nuclear One - Unit 1

1. Unit Name:

i

'2. Reporting Period: December 1 - 31. 1980

3. Licensed Thermal Power (MWr):

2568 902.74

4. Narneplate Rating (Gross MWe):

850

5. Design Electrical Rating (Net MWe):

883

6. Maximum Dependable Capacity (Gross MWe):

836 j

7. Maximum Dependable Capacity (Net MWe):

8. If Changes Occur in Capacity Ratings (items Number 3 Through 7) Since Last Report. Give Reasons:

None None

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

N/A

10. Reasons For Restrictions.lf Any:

4 This Montt Yr..to.Date Cumulative 744.0 8,784.0 52.915.0

11. Hours in Reporting Period 732.7 5,651.8 35,790.3

12. Number Of Hours Reactor Was Critical 0

647.6 4,895.0

13. Reactor Resene Shutdon Hours

14. Hours Generator On.Line 723.8 5,574.5 35,045.0 0

20.8 817.5

15. Unit Reserve Shutdown Hours

16. Gross Thermal Energy Generated (MWH) 1,319,548.0 12,9 11,172.0 84,173,216.0 406,920.0 3,977,405.0,27,698,561.0

17. Gross Electrical Energy Generated (MWH) 386,162.0 3,781,602.0 26,415,639.0

18. Net Electrical Energy Generated (MWHb 97.3 63.0 66.2

19. Unit Service Factor

20. Unit Availability Factor 97.3 63.7 67.8 62.1 51.5 59.7-

21. Unit Capacity Factor (Using MDC Neti

22. Unit Capacity Factor (Using DER Net) 61.1 50.6 58.7 2

25.3 17.3

23. Unit Forced Outage Rate

_4.

24. Shutdowns Scheduled Over Next 6 Months (Type. Date, atS ! art, w Each1:

d March 15,1981 l

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

26. Units In Test Status (Prior to Commercial Operationi:

Forecast Achieved INITIA L CRITICALITY INITIAL ELECTRICITY COMMERCIAL OPER ATION

("/77 i

. e t

a UNIT SiluTDOWNS AND POWER REDUC 110NS DOCKET NO. 50-313

'i UNIT NAhlE.ANO IINTT T DATE 1/15/81 COMPLETED BY L1 S. Brnmlett REPORT MONTil December TELEPflONE (5011 968-7519 "L

,$9 3

Y-Licensee E r, h

Cause & Curreceive No.

Date h

5g js5 Event gy 93 Action to q'

$~

cE

.5gd:!

Reporise ui o gU Psevent Recurrence H

e O

c5

?

a 80-13 801208 F.

20.2 11 3

None llA ZZZZZZ The reactor tripped due to secondary plant load oscillations. The exact i

cause is unknown. Ilowever, the oscillations are believed to be due to a governor valve being close to its break open point.

I 2

3 4

F: Forced Reason:

Method:

Exhibis G. Inst:uctions S: Scheduled A Equipment Failure (Explain) 1-Manual for Prepasation of Daia 11 Maintenance of Test 7 4 fannal Scram.

Entiy Sheets for I.ieensee C Refueling 1 A tomatic Scram.

livent Report (Llilu File (NUREG.

D Regulaiory Resisiciion 4 Othes (Explain) 0161i E-Ope:ator Tsaining & License fixamination F.Administ rative 5

G. Ope s ailon.il l'e sor (lix plain t Exhibis 1 Same Source (9/77)

Il Othes (Explain)

DATE:

January. 1981 REFUELING INFORMATION l..

Name of facility.

Arkansas Nuclear One - Unit 1 2.

Scheduled date for next refueling shutdown.

1/2/81(Shutdown) 3.

Scheduled date for restart following refueling.

3/15/81 4.

Will refueling or resumption of operation thereaf ter require a j

technical specification change or other license amendment?

If answer is yes, what, in general, will these be?

If answer is no, has the reload fuel design' aui core configuration been reviewed by your Plant Safety Review Gm=ittee to determine whether any unreviewed safety questions are associated with the core reload (Ref. 10 CFR Section 50.59)?

Yes.

Reload recort and associated croocsed Technical Soecification chances.

Also, the safety analysis of four demonstration high burn-uo assemblies will be provided.

5.

Scheduled date(s) for submitting proposed licensing action and supporting information. Partial submittal 10/31/80.

Comolete by 2/1/81 6.

Important licensing considerations associated with refueling, e.g.,

new or different fuel design or ' supplier, unreviewed design or performance analysis methods, significant changes in fuel design, new operating procedures.

Will reload 68 fresh fuel assemblies and coerate for acoroximatelv 16 mon ths.

Four of which will be high burn-uo test assemblies.

7.

The number of fuel assemblies (a) in the core and (b) in the spent fuel storage pool. a) 177 b) 176 8.

The present licensed spent fuel pool storage capacity and the size of any increase in licensed storage capacity that has been requested er is planned, in number cf fuel assemblies.

present 590 increase size by 0

9.

The projected date of the last refueling that can be discharged ~

to the spent fuel pool assuming the present licensed capacity.

l DATE:

1986 l

NRC MONTHLY OPERATING REPORT OPERATING

SUMMARY

- DECEMBER 1980 UNIT I The unit began the month at about 93% full power with power limited by the pressure differential (level) problem on "A" OTSG. On 12-1-80 the "D" reactor coolant pump was manually secured because of seal cavity pressure problems. Therefore, power operation was limited to three pumps for the remainder of the month. On 12-8-80 the reactor tripped on 9/ Flow /A$.

This was caused by secondary load oscillations which were believed to be caused from a governor valve being close to its break open point. On 12-24-80 power was reduced about 15% at the request of the system dispatcher when a 500 KV transmission line was lost. The unit operated the remainder of the month with preparations being made for the refueling shutdown in January.

9 1

1 l

.