1CAN098506, Monthly Operating Rept for Aug 1985
| ML20138R699 | |
| Person / Time | |
|---|---|
| Site: | Arkansas Nuclear  |
| Issue date: | 08/31/1985 |
| From: | Converse W, Enos J ARKANSAS POWER & LIGHT CO. |
| To: | Bassett H NRC OFFICE OF RESOURCE MANAGEMENT (ORM) |
| References | |
| 1CAN098506, 1CAN98506, NUDOCS 8511180780 | |
| Download: ML20138R699 (7) | |
Text
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.I OPERATING DATA REPORT DOCKET N0:
50-313 DATE:
August, 1985 i
COMPLETED BY:W. E. Converse TELEPHONE:
(501) 964-3188 OPERATING STATUS 1.
Unit Name:
Arkansas Nuclear One - Unit 1 i
2.
Reporting Period:
August 1 - 31, 1985 l
3.
Licensed Thermal Power (MWt):
2568 4.
Nameplate Rating (Gross MWe):
902.74 i
5.
Design Electrical Rating (Net MWe):
850 6.
Maximum Dependable Capacity (Gross MWe):
853 7.
Maximum Dependable Capacity (Net MWe):
836 "l
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):
819 MWe (98%)
i 10.
Reasons For Restrictions.
If Any:
Apparent high operating level in the "A" steam generator caused by fouling at the tube support plate crevices.
MONTH YR-TO-DATE CUMULATVE i
- 11. Hours in Reporting Period....
N0 5,831.0 93,810.0
- 12. Number of Hours Reactor was j
Critical.....................
546.7 4,445.0 63,102.9 13.
Reactor Reserve Shutdown Hours........................
0.0 0.0 5,044.0
- 14. Hours Generator On-Line......
535.2 4,321.2 61,724.7
- 15. Unit Reserve Shutdown Hours..
0.0 0.0 817.5
- 16. Gross Thermal Energy Generated 1
(MWH)........................
1,171,415.0 10,430,332.0 146,783,148.0
- 17. Gross Electrical Energy Generated (MWH)..............
385,950.0 3,498,919.0 48,461,190.0
- 18. Net Electrical Energy Generated (MWH)..............
362,305.0 3,315,995.0 46,178,518.0
- 19. Unit Service Factor..........
71.9 74.1 65.8
- 20. Unit Availability Factor.....
71.9 74.1 66.7
- 21. Unit Capacity Factor j
(Using MDC Net)..............
58.2 68.0 58.9
- 22. Unit Capacity Factor 2
(Using DER Net)..............
57.3 66.9 57.9
- 23. Unit Forced Outage Rate......
28.1 17.4 14.8 i
24.
Shutdowns Scheduled Over Next 6 Months (Type, Date, and Duration of l
Each):
25.
If Shut Down At End of Report Period.
Estimated Date of l
Startup:
l
- 26. Units in Test Status (Prior to Commercial Operation):
I Forecast Achieved INITIAL CRITICALITY l
INITIAL ELECTRICITY
~
COMMERCIAL OPERATION 8511180700 850831 1
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1 AVERAGE DAILY UNIT POWER LEVEL DOCKET N0:
50-313 UNIT:
One DATE:
August, 1985 COMPLETED BY: W. E. Converse TELEPHONE:
(501) 964-3188 MONTH August DAY AVERAGE DAILY POWER LEVEL (MWe-Net) 1.............
817 2.............
816 3.............
815 4.............
814 5.............
813 6.............
813 7.............
811 8.............
813 9.............
811 10............
809 11............
535 12............
-35 13..........
-35 14............
209 15............
314 16............
315 17............
312 18............
422 19............
581 20............
-14 21............
-6 22............
-7 23............
-7 24............
-14 25............
-29 26............
413 27............
760 28............
813 29............
811 30............
812 31............
813 AVGS:
487 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.
NRC MONTHLY OPERATING REPORT OPERATING
SUMMARY
AUGUST 1985 UNIT ONE The unit began the month power limited due to apparent high operating level in the "A" steam generator.
The apparent high level is caused by a differential pressure increase acros3 the tube bundle from fouling of the tube support plate crevices.
This condition had developed slowly.
The unit became power limited on July 28.
The unit tripped at 1611 hours0.0186 days <br />0.448 hours <br />0.00266 weeks <br />6.129855e-4 months <br /> on the lith due to loss of both main feedwater pumps (anticipatory trip).
At 2219 hours0.0257 days <br />0.616 hours <br />0.00367 weeks <br />8.443295e-4 months <br /> on the 13th, the reactor was taken critical.
The unit was tied on line on line on the 14th at 0513 hours0.00594 days <br />0.143 hours <br />8.482143e-4 weeks <br />1.951965e-4 months <br />, and power was raised to approximately 45% to permit continued repairs to the main feedwtaer pump control oil system.
At 1930 hours0.0223 days <br />0.536 hours <br />0.00319 weeks <br />7.34365e-4 months <br /> on the 18th, power escalation to full power was begun.
At 2359 hours0.0273 days <br />0.655 hours <br />0.0039 weeks <br />8.975995e-4 months <br /> on the same day, 90% power was attained and held for fuel consideration.
At 1921 hours0.0222 days <br />0.534 hours <br />0.00318 weeks <br />7.309405e-4 months <br /> on the 19th, the unit was manually tripped during the runback after trip of one main feedwater pump turbine.
Repairs to the main feedwater pump controls and to a leaking steam generator secondary handhole cover were condu-ted.
Following these repairs, the unit was taken critical at 1832 hours0.0212 days <br />0.509 hours <br />0.00303 weeks <br />6.97076e-4 months <br /> on the 25th and brought on line at 2306 hours0.0267 days <br />0.641 hours <br />0.00381 weeks <br />8.77433e-4 months <br /> on the same day.
After several power holds, 100% power was attained at 1641 hours0.019 days <br />0.456 hours <br />0.00271 weeks <br />6.244005e-4 months <br /> on the 27th.
The unit became power limited again on the 30th.
Power had decreased to approximately 98% by the end of the month, l
l UNIT SHUIDOWNS AND POWER REDUCTIONS REPORT FOR AUGUST, 1985 DOCKET NO 50-313 UNIT NAME ANO - Unit 1 OATE September 5, 1985 COMPLETED BY W. E. Converse TELEPHONE (501) 964-3188
(
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 85-05 850811 F
61.0 A
3 1-LER-85-007 SL PCV Auxiliary reactor trip on loss of both main feedwater pumps resulting from turbine control oil pressure spike. Metering valves were installed in the control oil lines to dampen the pressure spike.
I 2
3 4
F:
Forced Reason:
Method:
Exhibit G - Instructions i
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) 9
T UNIT SHUTDOWNS AND POWER REDUCTIONS REPORT FOR AUGUST, 1985 DOCKET N0 50-313 UNIT NAME ANO - Unit 1 DATE September 5, 1985 C0t1PLETED BY W. E. Converse TELEPHONE (501) 964-3188 Method of Licensee Cause & Corrective Duration Shutting Event System Component Action to No.
Date TYEe (Hours)
Reason 2 Down Reactor 3 1
Report #
Code 4 Code 5 Prevent Recurrence 85-06 850819 F
147.8 H
2 1-LER-85-008 ZZ ZZZZZZ Manual trip during runback following loss of one main feedwater pump.
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) 9
DATE:
August, 1985 REFUELING INFORMATIU, 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 unrevi,wed safety e
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
O ARKANSAS POWER & LIGHT COMPANY POST OFFICE BOX 551 LITTLE ROCK. ARKANSAS 72203 (501) 3714000 September 15, 1985 1CAN098506 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 August 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 Plaa Drive, Suite 1000 Arlington, TX 76011 Mr. Richard C. DeYoung Office of Inspection and Enforcement U. S. Nuclear Regulatory Commission Washington, DC 20555 i
MEMBEA MtOOLE SOUTH UTIUTIES SYSTEM