ML20077H669

Monthly Operating Rept for June 1983

ML20077H669
Person / Time
Site:	Arkansas Nuclear
Issue date:	07/15/1983
From:	John Marshall, Morton K ARKANSAS POWER & LIGHT CO.
To:	Bassett H NRC OFFICE OF RESOURCE MANAGEMENT (ORM)
References
1CAN078307, 1CAN78307, NUDOCS 8308110197
Download: ML20077H669 (6)

Text

_ _

OPERATING DATA REPORT 50-313 DOCKET NO.

DATE 7/15/83 COMPLETED llY K.L. Morton TELEPHONE 501-964 3115 OPERATING STA10S N"

Arkansas Nuclear One - Unit 1

1. Unit Name:

2. Reporting Period:

June 1-30, 1983 2568

3. Licenwd Thermal Power (MWt):

02.74

4. Nameplate Rating IGross MWe):

0

5. Design Electrical Rating (Net MWel:

883

6. Masimum Dependable Capacity (Gross MWe):

86

7. Masimum Dependable Capacity (Net MWe):

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

Nonc

9. Power Lesel To Which Restricted. lf Any (Net MWe):

10. Reawns For Restrictions. If Any:

This Month Yr..to Date Cumulatise

11. Ilours in Reporting Period 720.0 4343.0 74778.0

12. Number of Ilours Reactor was Critical 333.9 562.6 48569.9 0.0 0.0 5044.0

13. Reactor Reserve Shutdown llour, 328*1 393.4 47450.9

14. Ilours Generator On Line

15. Unit Rewne Shutdown llours 0.0 0.0 817.5 742548.0 815867.0 112585681.0

16. Gmss Thermal Energy Generated (MWill 250330.0 266406.0 37031450.0

17. Gross Electrical Energy Generated (MWill 238529.0.

252304.0 35290114.0

18. Net Electrical Energy Generated IMWHI 45.6 9.1 63.5

19. Unit Senice Factor 45.6 9.I 64.5

20. Unit Availability Factor 39.6 6.9 56.5

21. Unit Capuity Factor IUsing MDC NetI 39.0 6.8 55.5

22. Unit Capacity Factor (Using DER Neil 54.4 50.6 16.1

23. Unit Forced Outage Rate

24. Shutdowns Scheduled Oser Nest 6 Months (Type. Date.and Duration of Each):

NONE

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

26. Units in Test Status (Prior to Commercial operation):

Forecast Achieved INITIA L CRITICALITY INITI A L ELECTRICI TY COMMERCI AL 0rER ATION 8308110197 830715 PDR ADOCK 05000313 tof77) :.cQ R

PDR J

AVERAGE DAILY UNIT POWER LEVEL DOCKET NO.

50-313 I

UNIT DATE COMPLEs D BY K.L.Morton 501-964-3115 TELEPHONE MONTH

. Tune. 1983 DAY AVERAGE DAILY POWER LEVEL

. DAY AVER AGE DAILY POWER LEVEL (MWe Net)

(MWe-Net) 474 0

,7 0

2 607

g 3

663 39 0

751 0

4 20 749 0

5 21 6

794 22 0

7 830 0

23 831 0

8 24 9

473 25 10 0

26 0

50 0

Il 27 617 12 28 0

13 29 0

14 821 0

30 828 15 3,

16 698 INSTRUCTIONS On this format. list ihe average daily unit power levelin MWe Net for each day in the reporting m.inth. Ciimpute to the nearest wfmle nwgawaii.

-~

Its/77i

NRC MONTHLY OPERATING REPORT OPERATING

SUMMARY

- JUNE 1983 UNIT 1 The unit started the month at approximately 60% full power while going through power escalation from a shutdown which had occurred the previous month.

This unit attained 100% full power operation on June 7 and operated there until June 9.

At 1349 hours0.0156 days <br />0.375 hours <br />0.00223 weeks <br />5.132945e-4 months <br /> on June 9, the unit tripped on loss of both main feedwater (MFW) pumps.

The trip was caused by a spurious AC signal sent to the suction pressure indicators.

The reactor was brought critical again on June 11 at 1203 hours0.0139 days <br />0.334 hours <br />0.00199 weeks <br />4.577415e-4 months <br />, and the turbine was tied to the grid at 1754 hours0.0203 days <br />0.487 hours <br />0.0029 weeks <br />6.67397e-4 months <br />.

The urit attained 100% full power operation on June 14 and operated there until June 16.

At 2016 nours on June 16, the unit tripped due to a failure of the main turbine generator exciter.

The unit remained shutdown until June 30 when plant heatup was begun.

The unit was brought critical on July 1.

P

(

, e UNIT SHUTDON NS AND POWER REDUCTIONS INSTRUCTIONS This report should describe all plant shutdowns during the in accordance with the table appearing on the report form.

report period. In addition,it should be the source of explan.

If category 4 must be used. supply bnef comments.

ation of significant dips in average power levels. Each signi-ficant reduction in power level (greater than 20% reduction LICENSEE EVENT REPORT 2r.

Reference the appheable in average daily power level for the preceding 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br />) reportable occurrence pertaming to the outage or power should b'e noted, even though the unit may not have been reduction. Enter the first four parts (event year, sequential l

shut down completely For such reductions in power level, report number, occurrence code and report type) of the the the duration should be listed as zero, the method of reduction part designation as desenbed in Item 17 of Instructions for should be listed as 4 (Other), and the Cause and Corrective Preparation of Data Entry Sheets for Licensee Lvent Report Action to Prevent Recurrence column should explain. The (LER) File (NUREG.0161L This information may not he Cause and Corrective Action to Prevent Recurrence column immediately evident for all such shutdowns. of course. smce should be used to provide any needed explanation to fully further investigation may be required to ascertam whether or descobe the circumstances of the outsge or power reduction.

n t a reponabic occunence was involved.) If the outage or power reduction will not result in a reportable occurrente.

NUMBER. This columr. should indicate the sequential num.

the positive indication of this lack of correlation should be ber assigned to each shutcown or significant reductionin power noted as not apphcable (N/A).

for that calendar year. When a shutdown or significant power SYSTEM CODE. The system m which the outage or power reduction begins in one report penod and ends in another.

an entry should h made for both report periods to be sure reduction originated should be nued by the two digit code of all shutdowns or significant power reductions are reported.

Exhibit G Instructions for Preparation of Data Entry Sheets Until a unit has achieved its first power generation, no num-f r Licensee Event Report (LER) File (NUREG4161).

ber should be assigned to each entry.

Systems that do rat fit any existing code should be designa.

ted XX. The co,. 'should be used for those events where DATE. This column should indicate the date of the start a system is not appneacle.

of each shutdown or significant power reduction. Report as year, month, and day. August 14,1977 would be reported COMPONENT CODE. Select the most appropriate component as 770814. When a shutdown or significant power reduction from Exhibit i Instractions for Preparation of Data 1 ntr>

begins m one report period and ends in another, an entry should Sheets for Licensee Event Report (LER) File (NURLG.Olet 1.

be made for both report periods to be sure all shutdowns using the following critieria:

or significant power reductions are reported.

1YPE. Use "F" or "S" to indicate either " Forced" or " Sche-duled," respectively, for each shutdown or significant power II. If not a congonent failure, use the related component.

reduction. Forced shutdowns include those required to be e.g., wrong valve operated through error. list val e as initiated by no later than the weekend following discovery component.

of an off-normal condition. It is recogniicd that some judg.

ment is required m categorizing shutdowns in this way. In C.

If a cham of failures occurs, the first component to mal.

general, a forced shutdown is one that would not have been function should be listed. The sequence of events.melud.

completed in the absence of the condition for which corrective ing the other components which fail should be described action was taken.

unJer the Cause and Corrective Action to Prevent Recur.

rence column.

{

DURATION. Self explanatory. When a shutdown extends beyond the end of a report period. count only the time to the Components that do not fit any existing code should be de.

end of the report period and pick up the ensuing down time s gnated XXXXXX. The code ZZZZZZ should be used foi In the following report periods. Report duration of outages events where a component. designation is not applicable.

rounded to the nearest tenth of an hour to facilitate summation.

The sum of the total outage hours plus the hours the genera.

CAUSE & CORRECTIVE ACTION TO PREVENT RECUR-tor was on line should equal the gross hours in the reportmg RENCE. Use the column in a narratise fashion to amphti ei P' ""1 explain the circumstances of the shutdown or power reduetion I

The column should include the specifie cause for each shui l

E"

'"'I""

REASON. Categorite by letter designation in accordance with the table appearing on the report form. I t. category 11 contemplated long term correctise action taken. if appropn.

must be used, supply bnef comments.

ate. This column should also be used for a desciiption of the ruajor safety-related corrective mamtenance performed dur' g METHOD OF SHUTTING DOWN THE REACTOR OR the outage or power reductmn induding an identification of

1. # 'I P'

'# 'I '" ' P"" "I '"Y ""E

1. "I REDUCING POWER. Categorue by number designation radioactivity or single radiation exposure spe(itically associ.

INote that this ditters f rom the Edison Electric Institute ated with the outage which accounts for more than 10 percent (EEI) definitions of " Forced Partial Outage" and " Sche, of the allowable annual values.

dated Partial Outage." For these terms. eel uses a change of For long textual reports continue narratrve on separate paper 30 MW as the break pomt. For larger power reactors.30 MW and reference the shutdown or power reduction for this is too small a thange to wariant explanation.

narrative.

50-313 DOCKET NO.

1: NIT SHUTDOWNS AND POWER REDUCTIONS UNIT N AME ANO-Unit 1 DATE June 6.

1983 COMPLETED BY Ken Morton REPORT MONTH JUNE TELEPHONE (Knil ga_T11q

~;-

c e

c,

-= -a :

,-r.

E9.,

Cause & Corrective E,

.2 E F

4sX Lkensee No.

Date g

3g 3

,g i $

Event s?

8?

Action to

8. E E

j5j Report :

rE C Prevent Recurrence d

83-02 6-9-83 F

52.2 A

3 N/A Cil PINPXX Both Main Feedwater Pumps trippped on spurious low suction pressure signal.

83-03 6-16-83 F

339.7 A

3 N/A IIA GENERA Main Turbine Generator Exciter failure.

Repaired exciter.

3 4

I 2

Method:

Exhibit G - Instructions F: Forced Reason:

1-Manual for Preparation of Data S: Scheduled A-Equipment Failure (Explain)

B-Maintenance of Test 2-Manual Scram.

Entry Sheets for beensee 3 Automatic Scram.

Event Report (LER) File (NUREG.

C-Refueling 4 Continuation 0161)

D-Regulatory Restriction 1

E%rator Training & Ucense Examination 5-Load Reduction 5

F-Administrative 9-Other Exhibit I - Same Source G-Operational Error (Explain) 19/77 )

Il Other (Explain)

I l

/~

ARKANSAS POWER & LIGHT COMPANY POST OFTICE BOX 551 Lir1LE ROCK, AHKANSAS 72203 (501) 371-4000 July 15, 1983 1CAN078307 Mr. Harold S. Bassett, Director Division of Data Automation and Management Information Office of Resource Management U. S. Nuclear Regulatory Commission Washington, D. C.

20555

SUBJECT:

Arkansas Nuclear One - Unit 1 Docket No. 50-313 License No. OPR-51 Monthly Operating Report (File:

0520.1)

Gentlemen:

Attached is the NRC Monthly Operating Report for June 1983 for Arkansas Nuclear One - Unit 1.

Very truly yours, N

John R. Marshall Manager, Licensing JRM: SAB: rd Attachment cc:

Mr. John T. Collins Regional Administrator U. S. Nuclear Regulatory Commission Region IV 611 Ryan Plaza Drive, Suite 1000 Arlington, TX 76011 Mr. Richard C. DeYoung Office of Inspection and Enforcement U. S. Nuclear Regulatory Commission

((dY Washington, DC 20555 l

vtMorn M:oott souTu uf otars system l

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