1CAN068501, Monthly Operating Rept for May 1985

Monthly Operating Rept for May 1985

ML20133H627
Person / Time
Site:	Arkansas Nuclear
Issue date:	05/31/1985
From:	Enos J, Morton K ARKANSAS POWER & LIGHT CO.
To:	Bassett H NRC OFFICE OF RESOURCE MANAGEMENT (ORM)
References
1CAN068501, 1CAN68501, NUDOCS 8508090428
Download: ML20133H627 (6)

Text

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OPERATING DATA REPORT DOCKET N0:

50-313 DATE:

May, 1985 COMPLETED BY:K. L. Morton TELEPHONE:

501-964-3115 OPERATING STATUS 1.

Unit Name: Arkansas Nuclear One - Unit 1 2.

Reporting Period:

May 1 - 31, 1985 3.

Licensed Thermal Power (MWt):

2568 4.

Nameplate Rating (Gross MWe):

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 (Items Number 3 Through 7) Since Last Report, Give Reasons:

9.

Power Level To Which Restricted.

If Any (Net MWe):

None 1

10.

Reasons For Restrictions.

If Any:

None 1

MONTH YR-TO-DATE CUMULATVE 11.

Hours in Reporting Period....

744.0 3,623.0 91,602.0 12.

Number of Hours Reactor was Critical.....................

727.5 2,438.0 61,095.9 13.

Reactor Reserve Shutdown Hours........................

0.0 0.0 5,044.0 14.

Hours Generator On-Line......

723.4 2,341.6 59,745.1 15.

Unit Reserve Shutdown Hours..

0.0 0.0 817.5 16.

Gross Thermal Energy Generated (MWH)........................*

1,855,099.0 5,700,371.0 142,053,187.0 17.

Gross Electrical Energy Generated (MWH)..............

626,440.0 1,920,034.0 46,882,305.0 18.

Net Electrical Energy 599,366.0 1,814,302.0 44,676,825.0 Generated (MWH)..............

19.

Unit Service Factor..........

97.2 64.6 65.2 20.

Unit Availability Factor.....

97.2 64.6 66.1 21.

Unit Capacity Factor (Using MDC Net)..............

96.4 59.9 58.3 22.

Unit Capacity Factor (Using DER Net)..............

94.8 58.9 57.4 23.

Unit Forced Outage Rate......

2.8 22.6 14.9 24.

Shutdowns Scheduled Over Next 6 Months (Type, Date, and Duration of Each):

None l

25.

If Shut Down At End of Report Period.

Estimated Date of Startup:

26.

Units in Test Status (Prior to Commercial Operation):

Forecast Achieved INITIAL CRITICALITY INITIAL ELECTRICITY COMMERCIAL OPERATION

• Gross Thermal Energy Generated (MWH) for April was incorrectly calculated due to the daylight savings time change.

The correct figures are Monthly -

1,384,820.0, yearly - 3,845,272.0, and cumulative - 140,198,088.0 M

8508090428 850531 PDR ADOCK 05000313 g[g R

PDR

AVERAGE DAILY UNIT POWER LEVEL.

DOCKET NO:

50-313 UNIT:

One DATE:

May, 1985 COMPLETED BY: K. L. Morton TELEPHONE:

501-964-3115 MONTH May DAY AVERAGE DAILY POWER LEVEL (MWe-Net) 1.............

831 2.............

830 3.............

821 4.............

822 5.............

829 6.............

830 7.............

829 8.............

831 9.............

831 10............

830 11............

831 12............

830 13............

829 14............

831 15............

831 16............

831 17............

831 18............

831 19............

830 20............

829 21............

828 22............

829 23............

830 24............

830 25............

830 26............

829 27............

829 28............

830 29............

830 30............

830 31............

88 AVGS:

806 INSTRUCTION On this format, list the average daily unit power level in MWe-Net for each day in reporting month.

Compute to the nearest whole megawatt.

. = _.

g NRC MONTHLY OPERATING REPORT i

OPERATING

SUMMARY

May 1985 UNIT One The unit started the month at 100% full power.

At 0323 hours0.00374 days <br />0.0897 hours <br />5.340608e-4 weeks <br />1.229015e-4 months <br /> on the 31st of May the unit tripped on high RCS pressure. The cause of the trip was an inadvertent closure of the intercept valves and a 4

trip of the "A" main feedwater pump.

The intercept valve closure also caused an overpressurization of the E2-A feedwater heater, causing the expansion joint to fail.

The reactor reached critical at 1953 hours0.0226 days <br />0.543 hours <br />0.00323 weeks <br />7.431165e-4 months <br /> on the 31st of May, and the unit finished the month off line with the reactor critical and repairs being made to the E2-A feedwater heater.

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UNIT SHUTDOWNS AND POWER REDUCTIONS REPORT FOR MAY, 1985 DOCKET NO 50-313 UNIT NAME ANO Unit 1 DATE June 5, 1985 COMPLETED BY K. L. Morton TELEPHONE (501) 964-3115 Method of Licensee Cause & Corrective Duration Shutting Event System Component Action to No.

Date Tyge (Hours)

Reason 2 Down Reactor 3 Report #

Code 4 Code 5 Prevent Recurrence l

85-03 19850531 F 20.6 A

3 ILER-85-004 SJ HX Reactor trip on high RCS pressure.

Initia-ting event was an in-advertent closure of an intercept valve causing a trip of the "A" main feedwater pump and a failure of the E2-A low pressure feedwater heater expan-sion joint.

The heater was repaired and the unit placed back on line.

1 2

3 4

F:

Forced Reason:

Method:

Exhibit G - Instructions S:

Scheduled A-Equipment Failure (Explain) 1-Manual for Preparation of Data B-Maintenance or Test 2-Manual Scram.

Entry Sheets for Licensee C-Refueling 3-Automatic Scram.

Event Report (LER) File (NUREG-D-Regulatory Restriction 4-Continuation 1022)

E-Operator Training &

5-Load Reduction License Examination 9-Other 5

F-Administrative Exhibit I - Same Source G-Operational Error (Explain)

H-Other (Explain) e e

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DATE:

May, 1985 REFUELING INFORMATION 1.

Name of facility:

Arkansas Nuclear One - Unit 1 2.

Scheduled date for next refueling shutdown.

August, 1986 3.

Scheduled date for restart following refueling.

October, 1986 4.

Will refueling or resumption of operation thereafter require a technical specification change or other license amendment?

If answer is yes, what, in general, will there 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)?

Yes.

Reload Report and associated proposed Technical Specification change request.

5.

Scheduled date(s) for submitting proposed licensing action and supporting information.

May 1, 1986 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.

None 7.

The number of fuel assemblies (a) in the core and (b) in the spent fuel storage pool, a) 177 b) 456 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.

present 988 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.

DATE:

1998 J

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ARKANSAS POWER & LIGHT COMPANY l

I POST OFFICE BOX 551 LITTLEROCK, ARKANSAS 72203 (501)371-4000 June 15, 1985 1CAN068501 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. DPR-51 Monthly Operating Report Gentlemen:

The Arkansas Nuclear One - Unit 1 Monthly Operating Report for May 1985 is attached.

Very truly yours, J. Ted Enos Manager, Licensing JTE:MCS: ac Attachment cc: Mr. Robert D. Martin 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 Washington, DC 20555 TE L4 si i i MEMBER MtOOLE SOUTH UTILITIES SYSTEM

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