1CAN048506, Monthly Operating Rept for Mar 1985
| ML20129H176 | |
| Person / Time | |
|---|---|
| Site: | Arkansas Nuclear  |
| Issue date: | 03/31/1985 |
| From: | Enos J, Morton K ARKANSAS POWER & LIGHT CO. |
| To: | Bassett H NRC OFFICE OF RESOURCE MANAGEMENT (ORM) |
| References | |
| 1CAN048506, 1CAN48506, NUDOCS 8506070501 | |
| Download: ML20129H176 (7) | |
Text
OPERATING DATA REPORT DOCKET NO:
50-313 DATE:
March 1985 COMPLETED BY:K. L. Morton TELEPHONE:
501-964-3115 OPERATING STATUS 1.
Unit Name:
Arkansas Nuclear One - Unit 1 2.
Reporting Period:
March 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 10.
Reasons For Restrictions.
If Any:
None MONTH YR-TO-DATE CUMULATVE 11.
Hours in Reporting Period....
744.0 2,160.0 90,13T 0 12.
Number of Hours Reactor was Critical....................
744.0 1,149.0 59,801.9*
13.
Reactor Reserve Shutdown Hours........................
0.0 0.0 5,044.0 14.
Hours Generator On-Line......
744.0 1,063.1 58,466.6 15.
Unit Reserve Shutdown Hours..
0.0 0.0 817.5
- 16. Gross Thermal Energy Generated (MWH)........................
1,901,845.0 2,460,452.0 138,813,218.0
- 17. Gross Electrical Energy Generated (MWH)..............
642,660.0 825,559.0 45,787,830.0 18.
Net Electrical Energy Generated (MWH)..............
615,589.0 771,002.0 43,633,525.0 19.
Unit Service Factor..........
100.0 49.2 64.9 20.
Unit Availability Factor.....
100.0 49.2 65.8 21.
Unit Capacity Factor (Using MDC Net)..............
99.0 42.7 57.9 22.
Unit Capacity Factor (Using DER Net)..............
97.3 42.0 56.9 23.
Unit Forced Outage Rate......
0.0 31.9 15.0 24.
Shutdowns Scheduled Over Next 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 INITIAL CRITICALITY INITIAL ELECTRICITY COMMERCIAL OPERATION
- Correction for February 1985 Report, Cumulative Critical Reactor hours - 59,062.9 f
8506070501 850331
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PDR ADOCK 05000313 1
R PDR
..D Q
AVERAGE DAILY UNIT POWER LEVEL DOCKET.NO:
50-313 UN1'T:
One DAT6:
. March, 1985 COMPLETED BY: K. L. Morton TELEPHONE:
501-964-3115 MONTH-March 1985 DAY AVERAGE DAILY POWER LEVEL (MWe-Net)~
~1.............
825 2.............
805 3..............
811 4.............
828 5.............
831
-6.............
831 7.............
829-8.............
829
.9.............
828
'10............
830 11............
828 12............
828 13............
829 14-...
831 15............
813 16............
832 17............
830 18............
831 19............
830 20............
830
- 21............
830 22.............
831 23............
831 24............
829 25............
830
/
26............
831 27............
830
~28............
824 29............
827 30............
827 31............
830 AVGS:
827 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.
4 e,
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n-,+w---.-
--e v- - - - -
NRC MONTHLY OPERATING REPORT OPERATING
SUMMARY
MARCH 1985 UNIT ONE The unit started the month at 100% full power.
At 1958 hours0.0227 days <br />0.544 hours <br />0.00324 weeks <br />7.45019e-4 months <br /> on the 1st the unit was taken to 96% full power for the final stage of physics testing following the IR6 refueling outage. At 1223 hours0.0142 days <br />0.34 hours <br />0.00202 weeks <br />4.653515e-4 months <br /> on the 3rd the unit was reduced further in power to 91% for continued physics testing.
At 1320 hours0.0153 days <br />0.367 hours <br />0.00218 weeks <br />5.0226e-4 months <br /> the unit was taken back to 96% full power and finally attained 100%
operation at 1435 hours0.0166 days <br />0.399 hours <br />0.00237 weeks <br />5.460175e-4 months <br />.
The unit remained at 100% full power until 1140 hours0.0132 days <br />0.317 hours <br />0.00188 weeks <br />4.3377e-4 months <br /> on the 15th. At this time the unit was backed down to 90% power because of a decrease in condenser vacuum.
A circulating water pump trip was the cause of the decrease in vacuum.
The pump trip has been attributed to reduced circulating water flow through the traveling screens due to an increased number of fish (threadfin shad) clogging the screens. The cleaning frequency of the screens was increased and the circulating water pump was returned to service.
The unit was returned to 100% full power at 1630 hours0.0189 days <br />0.453 hours <br />0.0027 weeks <br />6.20215e-4 months <br /> and "emained there through the end of the month.
NRC MONTHLY OPERATING REPORT OPERATING
SUMMARY
MARCH 1985 UNIT ONE The-unit started the month at 100% full power.
At 1958 hours0.0227 days <br />0.544 hours <br />0.00324 weeks <br />7.45019e-4 months <br /> on the 1st the unit was taken to 96% full power for the final stage of physics testing following the IR6 refueling outage. At 1223 hours0.0142 days <br />0.34 hours <br />0.00202 weeks <br />4.653515e-4 months <br /> on the 3rd the unit was reduced further in power to 91% for continued physics testing.
At 1320 hours0.0153 days <br />0.367 hours <br />0.00218 weeks <br />5.0226e-4 months <br /> the unit was taken back to 96% full power and finally attained 100%
operation at 1435 hours0.0166 days <br />0.399 hours <br />0.00237 weeks <br />5.460175e-4 months <br />.
The unit remained at 100% full power until 1140 hours0.0132 days <br />0.317 hours <br />0.00188 weeks <br />4.3377e-4 months <br /> on the 15th.
At this time the unit was backed down to 90% power because of a decrease in condenser vacuum.
A circulating water pump trip was the cause of the decrease in vacuum.
The pump trip has been attributed to reduced circulating water flow through the traveling screens due to an increased number of fish clogging the screens.
The cleaning ~ frequency of the screens was increased and the circulating water pump was returned to service.
The unit was returned to l'0% full power at 1630 hours0.0189 days <br />0.453 hours <br />0.0027 weeks <br />6.20215e-4 months <br /> and remained there 0
through the end of the month.
UNIT SHUTDOWNS AND POWER REDUCTIONS REPORT FOR MARCH'1985 DOCKET NO 50-313 UNIT NAME ANO Unit 1-DATE April 5, 1985 COMPLETED BY K. L. Morton-TELEPHONE (501) 964-3115 Method of Licensee Cause & Corrective Duration Shutting Event System Component Action to l
No.
Date Tyge (Hours)
Reason 2 Down Reactor 3 Report #
Code 4 Code 5 Prevent Recurrence 85-02 820301 S
42.6 H
5 N/A AC RCT Power reduction for core testing.
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 DATE:
March 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.
Eill 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 er 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 stcrage capacity that has been requested or is a
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
O ARKANSAS POWER & LIGHT COMPANY POST OFFICE BOX 551 LITTLE ROCK. ARKANSAS 72203 (501)371-4000 April 15, 1985 1CAN048506 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 March 1985 is attached.
Very truly yours, J. Ted Enos Manager, Licensing JTE:MCS:ds 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 7
Washington, DC 20555 I
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t MEMBER MIDDLE SOUTH UTIUTIES SYSTEM