1CAN058606, Monthly Operating Rept for Apr 1986

Monthly Operating Rept for Apr 1986

ML20207C251
Person / Time
Site:	Arkansas Nuclear
Issue date:	04/30/1986
From:	Enos J, Gobell J ARKANSAS POWER & LIGHT CO.
To:	Bassett H NRC OFFICE OF RESOURCE MANAGEMENT (ORM)
References
1CAN058606, 1CAN58606, NUDOCS 8607210312
Download: ML20207C251 (6)

Text

I OPERATING DATA REP 0kT DOCKET N0:

50-313 DATE:

April, 1986 COMPLETED BY:J. N. GoBell TELEPHONE:

(501)964-3251 I

OPERATING STATUS 1.

Unit Name:

Arkansas Nuclear One - Unit 1 2.

Reporting Period:

April 1-30,1986 3.

Licensed Thermal Power (MWt):

2,568 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):

~682 MWe (~81%)

10.

Reasons For Restrictions.

If Any:

Apparent high operating level in the "A" steam generator caused by fouling at the tube support plate crevice MONTH YR-TO-DATE CUMULATVE 11.

Hours in Reporting Period....

~71T0 2,879.0 99,618.0 12.

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

708.5 2,436.5 68,099.8 13.

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

0.0 0.0 5,044.0 14.

Hours Generator On-Line......

698.2 2,418.0 66,676.1 15.

Unit Reserve Shutdown Hours..

0.0 0.0 817.5

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

1,420,785.0 5,166,251.0 157,753,475.0

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

484,120.0 1,767,545.0 52,202,270.0 18.

Net Electrical Energy Generated (MWH)..............

459,109.0 1,679,295.0 49,732,172.0 19.

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

97.1 84.0 66.9 20.

Unit Availability Factor....

97.1 84.0 67.8 21.

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

76.4 69.8 59.7 22.

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

75.1 68.6 58.7 23.

Unit Forced Outage Rate......

2.9 16.0 14.8 24.

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

A 10 week refueling outage is scheduled to begin August 22, 1986.

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 COMf1ERCIAL OPERATION frM 0607210312 060430

1. [I j

PDH ADOCd 0D000313 H

UDH

AVERAGE DAILY UNIT POWER LEVEL DOCKET N0:

50-313 UNIT:

One DATE:

April, 1986 COMPLETED BY: J. N. GoBell TELEPHONE:

(501)964-3251 MONTH April DAY AVERAGE DAILY POWER LEVEL (MWe-Net) 1.............

692 2.............

689 3.............

688 4.............

688 5.............

687 6.............

686 7.............

683 8.............

42 9.............

77 10............

620 11............

683 12............

683 13............

681 14............

681 15............

682 16............

682 17............

682 18............

681 19............

679 20............

682 21............

684 22............

680 23............

682 24............

682 25............

681 26............

680 27............

678 28............

677 29............

675 30............

674 31............

AVGS:

639 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.

b

e NRC MONTHLY OPERATING REPORT OPERATING

SUMMARY

APRIL 1986 UNIT ONE Unit One started the month operating at 82.2% power.

The unit was limited to this power due to a high level in the "A" steam generator.

At 0228 hours0.00264 days <br />0.0633 hours <br />3.769841e-4 weeks <br />8.6754e-5 months <br /> on the eighth, the unit tripped on high RCS pressure due to problems in the main turbine generator control system.

The unit went back on line at 2318 hours0.0268 days <br />0.644 hours <br />0.00383 weeks <br />8.81999e-4 months <br /> on the eighth and was held at 15% power until 1817 hours0.021 days <br />0.505 hours <br />0.003 weeks <br />6.913685e-4 months <br /> on the ninth.

The unit was taken to 81% power at 0645 hours0.00747 days <br />0.179 hours <br />0.00107 weeks <br />2.454225e-4 months <br /> on the tenth and finished the month at this power level.

1

)

a h

UNIT SHUTDOWNS AND POWER REDUCTIONS REPORT FOR APRIL, 1986 DOCKET NO 50-313 UNIT NAME ANO Unit 1 DATE April, 1986 COMPLETED BY

3. N. GoBell TELEPHONE (501)964-3251 Method of Licensee Cause & Corrective Duration Shutting Event System Component Action to No.

Date Type (Hours)

Reason 2 Down Reactor 3 l

Report #

Code 4 Code 5 Prevent Recurrence 8604 4-8-86 F

20.8 A

3 1-LER-86-004 TG JX Reactor trip on high RCS pressure due to control problems on the main turbine generator.

Replaced power supply to correct problem.

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 s

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

H-Other (Explain) 9

_m__

= _ _ _ _. = _ _ - -

e DATE:

April, 1986 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.

July 31, 1986 6.

Impcetant 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) 384 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.

l 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

0' b

ARKANSAS POWER & LIGHT COMPANY POST OFFICE BOX 551 UTTLE ROCK ARKANSAS 72203 (501)3714000 May 15, 1986 1CAN058606 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

Dear Mr. Bassett:

The Arkansas Nuclear One - Unit 1 Monthly Operating Report for April 1986 is attached.

Very truly yours,

. Ted Enos, Manager Nuclear Engineering and Licensing JTE:MCS: sg 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. James M. Taylor, Director g)(;

Office of Inspection and Enforcement

\\

U. S. Nuclear Regulatory Commission 1}\\

Washington, DC 20555 l

MEMBER MCOLE SOUTH UTsuTIES SYSTEM