ML20082C311
| ML20082C311 | |
| Person / Time | |
|---|---|
| Site: | Seabrook  |
| Issue date: | 06/30/1991 |
| From: | Feigenbaum T, Nardone P PUBLIC SERVICE CO. OF NEW HAMPSHIRE |
| To: | NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM) |
| References | |
| NYN-91111, NUDOCS 9107180305 | |
| Download: ML20082C311 (6) | |
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.Yhhkhh Ted C. Feigenbaum President and Chief Executwe OHicer NYN 91111 J uly 12,1991 United States Nuclear Regulatory Commission Washington, DC 20555 Attention:
Docurnent Control Desk
Reference:
Pacility Operating License NPF-86, Docket No. 50-443
Subject:
Monthly Operating Report Gentlemen:
Enclosed please find Monthly Operating Report 91-06.
This report addresses the operating and shutdown experience relating to Seabrook Station Unit 1 for the month of June, 1991 and is submitted in accordance with the requir::ments of Seabrook Station Technical Specification 6.8.1.5.
Very truly yours, L
Enclosure (s)
TCF:WJT/ tad cc:
Mr. Thomas T. Martin Regional Administrator United States Nuclear Regulatory Commission Region 1 475 Allendale Road King of Prussia, PA 19406 Mr, Gordon E. Edison, St. Project Manager Project Directorate 1-3 Division of Reactor Projects U.S. Nuclear Regulatory Commission Washington, DC 20555 Mr. Noel Dudley NRC Senior Resident inspector P.O. Box 1149 Seabrook, NH 03874 9107180305 910630 PDR ADOCK 05000443 y
PDR i
R yg e
New Hampshire Yankee Division of Public Service Company of New Hampshire P.O. Box 300
- Seabrook, NH 03874
- Telephone (603) 474-9521 J
i New flampshire Yankee July 12,1991 t
ENCLOS(FRE 1 TO NYN.01111 7
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OPERATING DATA REPORT DOCKET NO.
50-443 UNIT Seabrook 1 DATE 07/12/91 COMPLETED BY P. Nardone TELEPHONE (603) 474-9521 (Ext. 4074)
OPERATING STATUS 1
1.
Unit Name:
Seabrook Station Unit 1 2.
Reporting Period:
JUNE 1991 3.
Licensed Thermal Power (HWt):
3411 4.
Nameplate Rating (Gross MWe):
1197 5.
Design Electrical Rating (Net MWe):
1148 6.
Maximum Dependable Capacity (Gross MWe):
1200 7.. Maximum Dependable Capacity (Net MWe):
1150 8.
If Changes occur in Capacity Ratings (Items Number 3 Through 7)
Since Last Report, Give Reasons:
Not Applicable
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9.
Power Level To Which Restricted. If Any:
None
- 10. Reasons For Restrictions, If Any:
Not Applicable This Month Yr.-to-Date cumulative
- 11. Hours In Reporting Period 720.0 4343.0 41232.0
- 12. Number 0f Hours Reactor Was Critical 669.6 4119.8 9839.1
- 13. Reactor Reserve Shutdown Hours 0.0 0.0 953.3
-14. Hours Generator On-Line 640.1 4061.7 8189.1
- 15. Unit Reserve Shutdown Hours-0.0 0.0 0.0
- 16. Gross *hermal-Energy Generated (MWH) 2012648 13045648 25645973
- 17. ' Gross Liec. Energy Generated (MWH) 694637 4537413 8809330
- 18. Net Electrical Energy Generated (MWH) 667644-4355813 8449811
- 19. Unit Service Factor 88.9 93.5 90.1
- 20. Unit Availability Factor 88.9-93.5 90.1
- 21. Unit Capacity Factor (Using MDC. Net) 80.6 87.2 85.2.
- 22. Unit Capacity Factor (Using DER-Net) 80.8 87.4 85.3
- 23. Unit Forced Outage Rate 11.1 6.5 __
9.9
- 24. Shutdowns Scheduled Over Next 6 Months (Type Date, and Duration of.Each):
REFUELING. 07/27/91. 67 DAYS l
- 25. If Shut Down At End Of Report Period. Estimated Date Of Startup: Not Applicable i
- NOTE: Values based on accumulated hours starting 08/19/90, dste Regular Full Power Operation began.
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AVERAGE DAILY UNIT POWER LEVEL DOCKET NO.
50-443 UNIT Seabrook 1 DATE 07/12/91 COMPLETED BY P. Nardone TELEPHONE (603) 474-9521 (Ext. 4074)
MONTH JUNE. 1991 DAY AVERAGE DAILY POWER LEVEL DAY AVERAGE DAILY POWER LEVEL (MWe-Net)
(MWe-Net) i 1
1132 16 1146 2
323 17 1145 3
92 18 1146 4
436 19 1145 5
774 20 1145 6
1086 21 11 7
1141 22 1145 8
1144 23 1144 9'
1143 24 1144 10 1146' 25 1145 11 1147
-26 1145 12
-1147 27 647 13 1147 28 0
14-1147 29 101 15 1146 30 326 INSTRUCTIONS On this format. list the average-daily unit power level in MWe-Net for each day in the reporting month. Compute to the nearest whole megswatt.
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UNIT SHUTDOWNS AND POWER REDUCTIONS-DOCKET NO.
50-443 UNIT Seabrock 1 i
DATE 07/12/91 l
REPORT MONTH JUNE. 1991 COMPLETED BY P. Nardone j.
TELEPHONE (603) 474-9521 i
(Ext. 4074) l
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No.
'Date Type' Duration Reason' Method of
' Licensee Cause & Corrective l
(Hours)
Shutting Event Action to
[
Down Reactor Report i Prevent Recurrence 3
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91-04 06/02/91 F
31.7 H
3 91-036 Inadvertent actuation of the j
turbine mechanical overspeed j'
protection system caused an l
automatic turbine / reactor trip.
j See LER 91-006 for information on root cause and corrective I
l-action.
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91-05 06/27/91 F
48.2 A
3 91-008 Inadvertent actuation of switch-yard protective relaying opened
[
l breakers 11 and 163 causing an automatic turbine / reactor trip.
See LER 91-008 for information en I
root cause and corrective action.
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F:
Forced Reason:
Metbod:
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Scheduled A-Equipment Failure (Explain) 1-Manual B-Maintenance or Test 2-Manual Scram j
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C-Refueling 3-Automatic Scram D-Regulatory Restriction 4-Continued from l
E-Operator Training & License Examination-previous month i
F-Administrative 5-Power Reduction I
l G-Operational Error (Explain)
(Duration = 0)
H-Other (Explain) 9-Other (Explain)
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DOCKET No.
50 443 UNIT Seabrook 1 DATE 07/12/92 i
COMPLETED BY P. Nardone i
TELEPHONE (603) 474-9521 (Ext. 4074)
REFUELING INFORMATION REQUEST
- 1. Name of facility:
Seabrook Unit 1
- 2. Scheduled date for next refueling shutdown:
07/27/91 3.
Scheduled date for restart following refueling:
10/02/91
- 4. Will refueling or resumption of operation thereafter require a technical specification change or other license amendment?
Yes, the removal of the Residual Heat Removal System Autoclosure Interlock 5.
Scheduled date(s) for submitting licensing action and supporting information:
New Hampshire Yankee Letter NYN-91011, submitted on January 24, 1991
- 6. Important licensing considerations associated with refueling, e.g.,
new or different fuel design or supplier, unreviewed design or performance analysis metheds, significant changes in fuel design, new operating procedures:
Nonc 7 The number of fuel assemblies (a) in the core and (b) in the spent fuel storage pools (a)
In Core:
193 (b) 60 (new)
- 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 licensed capacity:
1236 No increase in storage capacity requested or planned.
9.
The projected date of the last refueling that can be discharged to the spent fuel pool assuming the present licensed capacity:
Licensed capacity of 1236 fuel assemblies based on sixteen annual refuelings and full core offload capability.
The current licensed capacity is adequate until at least the i
year 2007.
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