ML19338D728

Monthly Operating Rept for Aug 1980

ML19338D728
Person / Time
Site:	Arkansas Nuclear
Issue date:	09/15/1980
From:	Bramlett L ARKANSAS POWER & LIGHT CO.
To:
Shared Package
ML19338D726	List: ML19338D725 ML19338D728
References
NUDOCS 8009230700
Download: ML19338D728 (5)

Text

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' AVER AbE DAILY UNITPOWER LEVEL.

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r DOCKET NO. 50-313 LWIT ANO - 1 DATE 9/15/80 COMPLETED BY L. S. Bramlett i

, TELEPHONE (501) 968-2519 MONW Augus t. 1980 DAY AVERACE D AILY POWER LEVEL DAY AVERAGE DAILY POWER LEVEL (MWe Net) g ywe. Net )

1 0 17 741 2 0 ig 744 3 0

$9 745 4 46 20 744 5 620 666

, 21 6 70 8 22 261 7 747 23 675 s 744 _

24 739 9 742 25 742 10 744 26 742 i 686 2; 742 12 709 2s 739 13 743 __

29 695 14 742 749 39 15 742

, 31, 749 16 740 a

INSTRUCTIONS On this format. list the aerage &# unit power leselin F ar %

.. e nearest whole megawa t , h t'a) in the reportine inonth. Compure to z

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+

4 (9/77 )

6009230700 .

d OPERATING DATA REPORT DOCKET NO. 50-313 DATE 9/lb/dU COMPLETED BY .L. S. _ Bramlett TELEPHONE lou 11 906-2519 OPERATING STATUS Not

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1. Unit Name: Arkansas Nuclear One - Unit 1

2. Reporting Period: Auaust 1 - 31. 1980

3. Licenwd Thermal Power (>fWt): 2568 ,

4. Nameplate Rating (Gross MWel: 902.74

5. Design Electrical Rating (Net MWe): 850

6. Maximum Dependable Capacity (Gross MWe): 883

7. Maximum Dependable Capacity (Net MWe): 836

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

NONE

9. Power Lese! To which Restricted. If Any (Net MWe): NONE

10. Reasons For Restrictions. If Any: N/A This Month Yr. to.Date .Cumulatise i1. Hours in Reporting Period 744.0 5855.0 49986.0

12. Number Of Hours Reactor Was Critical 655.1 3277.3 33415.6

13. Reactne Resene Shutdown Hours 45.1_ 573.9 4821.3

14. Hours Generator On-Line 646.1 3221.4 32691.9

15. Unit Rewne Shutdown Hours 0.0 20.8 817.5

16. Gmss Thermal Energy Gene steJ tMwli) 1587615.0 7695758.0 78957802.0

17. Gross Electrical Energy Generated iMWH) 484080.0 2372490.0 26093646.0

18. Net Electrical Energy Generated (MhHi 460420.0 2257060.0 24891097.0

19. Unit Senice Factor 86.8 55.0 65.4

20. Unit Asailability Factor 86.8 55.4 67.0

21. Unit Capacity Factor IUsing MDC Neti 74.0 46.1 59.6

22. Unit Capacity Factor (Using DER Nett 72.8 45.4 58.6

23. Unit Forced Outage Rate 13.2 28.9 17.1

24. Shutdowns Scheduled Oser Nest 6 Months iType. Date.and Duration of Each t:

c January 1,1981 to March 1,1981, Refueling

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

26. Units in Test Status t Prior to Commercial Operationi: Forecast Achiesed INITI A L CRITIC.\ LITY __

INITIAL ELECTRICITY CO\lMERCITL OPER ATION 19/77)

. _ . _ _ _ _ . m. -

i DOCKET NO. 50-313 UNIT SHUTDOWNS AND POWER REDUCTIONS UNIT NAME ANU - Unit 1 DATE 9/15/80 COMPLETED BY L. 5. Bramlett REPORT MONTil AuquSt ELEPHONE (501) 968-2519 "L -

-, 5g 'h hY$ I icensee E r, h., Cause & Corrective No . Ipate i ~? 4 255 Event =7 a? Action to

$5 5 jsg Report # iE U fO Pievens Recurrence 6

80-07 800716 F 88.32 A 1 80-026/03L CC HTEXCH A continuation of July's outage due to the "A" 0TSG tube leak.

80-08 800822 F 9.55 A 3 None HH MOTORX A runback was initiated when the "B" mainfeed pump tripped due to its oil pump tripping because of a motor T bearing failure. During the runback

@ the Rx. tripped on high RCS pressure g when "A" mainfeed pump failed to con -

trol properly. The oil pump motor bearing was replaced and trash was

@ cleaned from the feed pump governor mechanism.

N=3 t==

o fI F: ForteJ 2 . 3 4 Reason: Method:

S. Sclwduleil ' Exhibit G - Inst:uctions A-1:quipment Failure (Explain) 1 Manual for Preparation of Data H. Maintenance of Test 2-Manual Ses arn. Entry Sheets for Licensee C Refuelirig 3 Automatic Scram. Event Repor: ILER) Fde (NURI G-D Regulatory Restrict.~n 44)ther ( E xplaud 0161) 1 -Ope:ator Trainmg & license Examination l' Admimstsative 5 G Operaisunal tissus (Explaiid Exhibit I - Same Sousec l'l!7 7 ) ll Olher (Explain) u _ .

i REFUELING INFORMATION

1. Name of facility. Arkansas Nuclear One - Unit 1

2. Scheduled date for next refueling shutdown. 1/1/81

3. Scheduled date for restart following refueling. 3/1/81

! 4.

.ill refueling or resumption of operation thereaf ter require a 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 and core configuration been reviewed by your Plant Safety Review Committee to determine whether any unreviewed safety questions are associated with the core reload (Ref. 10 CFR Section 50.59)?

5 yes. Reload reoort and associated orooosed Technical Specification chances. Also. the safety analysis of four demonstration high hurn-na attembliot will hp nrnvided

'1 5.

Scheduled date(s) for submitting ~ proposed licensing action and -

supporting information. 11/1/80 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, 4

new operating procedures.

, Will reload 68 fresh fuel asseriblies and operate for approximately 16 mnntht. Four of which will be hiah burn-up test assemblies.

4 1

7.

The fuel numberstorage of fuel a) pool. assemblies (a) in the core and (b) in the spent 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 or is planned, in number of fuel assemblies.

j present 590

' increase size by 0 s ,

! 9.

. The projected date of the last refueling that can be discharged to the spent fuel pool assuming the present licensed capacity.  ;

DATE: 1986 i

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t NRC MONTHLY OPERATING REPORT OPERATING

SUMMARY

- AUGUST 1980 UNIT I The Unit began the month in preparation for startup from the outage in July due to the primary to secondary leak in "A" OTSG.

The Unit was brought on line on August 4 and operated normally till August 11. On the 11th, the 500 kv transmission line to Mayflower was lost due to a forest fire and therefore, power was reduced to approximately 50%. Later that day the transmission line was returned to service and power was raised. The Unit re-turned to 100% power operation on the 12th and continued in that mode until the 21st. On August 21, the Mayflower line again tripped due to a forest fire and therefore, load was manually reduced to approximately 50% power. Later that day the avail-ability of the transmission line was regained and power was in-creased to 90%. On August 22, the Unit tripped off line on a high RCS pressure trip during a runback. The runback was caused when the "B" loop mainfeed pump tripped due to its oil pump trip-ping because of a bad motor bearing. However, during the run-back the "A" loop mainfeed pump failed to control properly causing the reactor to trip on high RCS pressure. The pump had failed to control because of some trash in the governor mechanism. The Unit was returned to operation later the same day. A 20% runback occurred on 8-29-80 due to feedwater control problems. Investiga-tion revealed control oil pressure was low and caused a reduction in pump speed. The problem was corrected and a return to 100%

power was accomplished on the same day. The unit has operated at 100% power for the remainder of the month.

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