1CAN118505, Monthly Operating Rept for Oct 1985

Monthly Operating Rept for Oct 1985

ML20136G667
Person / Time
Site:	Arkansas Nuclear
Issue date:	10/31/1985
From:	Converse W, Enos J ARKANSAS POWER & LIGHT CO.
To:	Bassett H NRC OFFICE OF RESOURCE MANAGEMENT (ORM)
References
1CAN118505, NUDOCS 8601080391
Download: ML20136G667 (8)

Text

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OPERATING DATA REPORT DOCKET NO:

50-313 DATE:

October, 1985 COMPLETED BY:W.E. Converse TELEPHONE:

(501)964-3188 OPERATING STATUS.

1.

Unit Name: Arkansas Nuclear One - Unit 1 2

2.

Reporting Period: October 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):

831 MWE ( 98%)~

10.

Reasons For Restrictions.

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

Hours in Reporting Period....

745.0 7,296.0 95,275.0 12.

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

587.6 5,541.4 64,199.3

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

0.0 0.0 5,044.0 14.

Hours Generator On-Line......

574.3 5,390.6 62,794.1 15.

Unit Reserve Shutdown Hours..

0.0 0.0 817.5

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

1,331,077.0 12,868,338.0 149,221,154.0 i

17. Gross Electrical Energy l

Generated (MWH)..............

454,310.0 4,322,559.0 49,284,830.0 i

18.

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

428,730.0 4,092,712.0 46,955,235.0 19.

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

77.1 73.9 65.9 20.

Unit Availability Factor.....

77.1 73.9 66.8 21.

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

68.8 67.1 59.0 22.

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

67.7 66.0 58.0 i

23.

Unit Forced Outage Rate......

22.9 19.5 15.0 24.

Shutdowns Scheduled Over Next 6 Months (Type, Date, and Duration of i

Each):

25.

If Shut Down At End of Report Period.

Estimated Date of Startup:

26.

Units in Test Status (Prior to Commercial Operation):

Forecast Achieved f

INITIAL CRITICALITY INITIAL ELECTRICITY CO M ERCIAL OPERATION W6010WO391 851031 PDR ADOCK 05000313 R

PDR

V. $N

'lj

AVERAGE DAILY UNIT POWER LEVEL DOCKET NO:

50-313 UNIT:

One DATE:

October, 1985 COMPLETED BY: W.E. Converse TELEPHONE:

(501)964-3188 MONTH October DAY AVERAGE DAILY POWER LEVEL (MWe-Net) 1.............

200 2.............

-33 3.............

62 4.............

-34 5.............

70 6.............

731 7.............

822 8.............

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

828 10............

825 11............

824 12............

824 13............

815 14............

819 15............

819 16............

777 17............

811 18............

817 19............

815 20............

814 21............

813 22............

812 23............

811 24............

706 25............

-17 26............

-11 27............

-27 28............

246 29............

751 30............

518 31............

824 AVGS:

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

Compute to the nearest whole megawatt.

t

NRC MONTHLY OPERATING REPORT OPERATING

SUMMARY

OCTOBfR 1985 UNIT ONE The unit began the month operating at 99% full power, limited by the high level in the "A" Once Through Steam Generator (OTSG).

At 0630 hours0.00729 days <br />0.175 hours <br />0.00104 weeks <br />2.39715e-4 months <br /> on the first, the reactor was manually tripped because of the inaJvertent closure of a main steam isolation valve (MSIV).

The reactor went critical at 2016 hours0.0233 days <br />0.56 hours <br />0.00333 weeks <br />7.67088e-4 months <br /> on the second, and at 2305 hours0.0267 days <br />0.64 hours <br />0.00381 weeks <br />8.770525e-4 months <br /> on the second the unit was back on line and proceeding with the power escalation.

At 1630 hours0.0189 days <br />0.453 hours <br />0.0027 weeks <br />6.20215e-4 months <br /> on the third, a plant shutdown was started on Unit One due to problems with the pressurizer spray valve.

The unit was off line at 1656 hours0.0192 days <br />0.46 hours <br />0.00274 weeks <br />6.30108e-4 months <br /> and went subcritical at 1800 hours0.0208 days <br />0.5 hours <br />0.00298 weeks <br />6.849e-4 months <br /> on the third.

The reactor went critical at 1522 hours0.0176 days <br />0.423 hours <br />0.00252 weeks <br />5.79121e-4 months <br /> and was placed back on line at 1720 hours0.0199 days <br />0.478 hours <br />0.00284 weeks <br />6.5446e-4 months <br /> on the fif th with power escalation to 98% full power at 1343 hours0.0155 days <br />0.373 hours <br />0.00222 weeks <br />5.110115e-4 months <br /> on the seventh.

The unit was limited to 98% full power due to the high level in the "A" 0TSG.

On October thirteenth at 0845 hours0.00978 days <br />0.235 hours <br />0.0014 weeks <br />3.215225e-4 months <br /> the power was reduced to repair a condensate pump recirculation valve.

The unit was back up to 98% full power, limited by "A" 0TSG 1evel, by 1905 hours0.022 days <br />0.529 hours <br />0.00315 weeks <br />7.248525e-4 months <br /> on the thirteenth.

At 1920 hours0.0222 days <br />0.533 hours <br />0.00317 weeks <br />7.3056e-4 months <br /> on the sixteenth, main feedwater pump (MFP) speed control problems caused a power reduction to 90% full power, but the unit was back up to 98% full power at 0345 hours0.00399 days <br />0.0958 hours <br />5.704365e-4 weeks <br />1.312725e-4 months <br /> on the seventeenth.

A power reduction due to a dropped control rod was initiated at 1943 hours0.0225 days <br />0.54 hours <br />0.00321 weeks <br />7.393115e-4 months <br /> on the twenty-fourth with the unit going off line at 0006 hours6.944444e-5 days <br />0.00167 hours <br />9.920635e-6 weeks <br />2.283e-6 months <br /> and subcritical at 0021 hours2.430556e-4 days <br />0.00583 hours <br />3.472222e-5 weeks <br />7.9905e-6 months <br /> on the twenty-fif th.

The unit went critical at 0135 hours0.00156 days <br />0.0375 hours <br />2.232143e-4 weeks <br />5.13675e-5 months <br /> and was placed back on line at OP48 hours on the *wenty-eighth, with power escalation being held at 40% full power for H P speed control problems at 1210 hours0.014 days <br />0.336 hours <br />0.002 weeks <br />4.60405e-4 months <br />.

The power escalation was continced at 1500 hours0.0174 days <br />0.417 hours <br />0.00248 weeks <br />5.7075e-4 months <br /> on the twenty-eighth to 94% full power where MFP speed control problems caused a power reduction at 2120 hours0.0245 days <br />0.589 hours <br />0.00351 weeks <br />8.0666e-4 months <br /> on the twenty-ninth.

The power was held at 44% full power from 0232 to 1300 hours0.015 days <br />0.361 hours <br />0.00215 weeks <br />4.9465e-4 months <br /> on the thirtieth and then brought back up to 97% full power at 2035 hours0.0236 days <br />0.565 hours <br />0.00336 weeks <br />7.743175e-4 months <br /> on the thirtieth.

The unit finished the month of October operating at 97% full power, limited by the "A" OTSG 1evel.

l UNIT SHUTDOWNS AND POWER REDUCTIONS REPORT FOR October, 1985 DOCKET NO 50-313 UNIT NAME ANO Unit 1 DATE November 6, 1985 COMPLETED BY J. 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 Report #

Codei Code 5 Prevent Recurrence L

l 8509 851001 F

40.6 H

2 1-LER-85-011 SB ISV Manual trip due to an MSIV closure.

The l

relay that controls the MSIV was incorrectly installed and the cover was loose.

The l

relay was remounted properly to prevent l

a recurrence.

I 1

2 3

4 F:

Forced Reason:

Method:

Exhibit G - Instructions 5:

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

Entry Sheets for Licensee i

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) i i

i i

c

- - - - -, ~ - - - - - - - - - - -, - -.

,,--,-,-,-.---n.--

'N UNIT SHUTDOWNS AND POWER REDUCTIONS REPORT FOR October, 1985 DOCKET NO 50-313 UNIT NAME ANO Unit I l

DATE November 6,1985 COMPLETED BY J. GcBell TELEPHONE (501)964-3251 Method of Licensee Cause & Corrective Duration Shutting Event System Component Action to No.

Date Typel (Hours)

Reason 2 Down Reactor 3 Report #

Code

• Code 5 Prevent Recurrence 8510 851003 F

48.4 A

1 NA AB PZR Unit was shutdown to repair a pressurizer spray valve that failed open. No actions were required to prevent a recurrence.

L

[

I 1

2 3

4 F:

Forced Reason:

Method:

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

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 i

G-Operational Error (Explain)

{

H-Other (Evolain) l 1

i 1

}

l UNIT SHUTDOWNS AND POWER REDUCTIONS REPORT FOR October, 1985 DOCKET NO 50-313 UNIT NAME ANO Unit 1 DATE November 6, 1985 COMPLETED BY J. GoBell l

TELEPHONE (501)964-3251 Method of Licensee Cause & Corrective l

Duration Shutting Event System Component Action to 1

No.

Date Tm (Hours)

Reason 2 Down Reactor 3 Report #

Codei Code 5 Prevent Recurrence i

851A 851025 F

81.7 A

1 NA AA MO Unit was shutdown to repair a control rod 3 in group 7.

No actions were required to prevent a recurrence.

8512 851030 F

0 H

5 NA SJ P

Reduced power due to the "A" MFP oscillation.

L 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-t D-Regulatory Restriction 4-Continuation 1022)

E-Operator Training &

5-Load Reduction License Examination 9-Other 5

l F-Administrative Exhibit I - Same Source G-Operational Error (Explain) h-Other (Explain) e i

i l

DATE:

October, 1985 REFUELING INFORMATION l

l l

1.

Name of facility:

Arkansas Nuclear One - Unit 1 I

2.

Scheduled date for next refueling shutdown. August, 1986 i

3.

Scheduled date for restart following refueling.

October, 1985 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 l

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.

l l

5.

Scheduled date(s) for submitting proposed licensing action and supporting information. Hay 1, 1986 6.

Important ifcensing 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 I

spent fuel pool assuming the present licensed capacity.

DATE:

1998 l

o o

er - -.

]

ARKANSAS POWER & LIGHT COMPANY POST OFFICE BOX 551 UTTLE ROCK, ARKANSAS 72203 (501) 3714000 November 15, 1985 i

1CAN118505 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 October 1985 is attached.

\\

Very t ly yours, p

J. Ted Enos Manager, 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. Richard C. DeYoung Office of Inspection and Enforcement U. S. Nuclear Regulatory Commission j

Washington, DC 20555 g ">-

MEMBEA MtOOLE SOUTH UTIUTIES SYSTEM