ML20141H103

Monthly Operating Rept for June 1997 for Seabrook Station

ML20141H103
Person / Time
Site:	Seabrook
Issue date:	06/30/1997
From:	Feigenbaum T, Nardone P NORTH ATLANTIC ENERGY SERVICE CORP. (NAESCO)
To:	NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
References
NYN-97078, NUDOCS 9707220011
Download: ML20141H103 (5)

Text

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i North North Atlantic Energy Senice Corporation P.O. Box 300 i

Atlaritic Seahroet. s u 03874 (603) 474-9521 The Northeast Utilities System July 11,1997 Docket No. 50443 NYN-97078 United States Nuclear Regulatory Commission Attention: Document Control Desk Washington, DC 20555 Seabrook Station Monthly Operating Reoort Enclosed please find Monthly Operating Report 97-06. This report addresses the operating and shutdown experience relating to Seabrook Station Unit i for the month of June,1997 and is submitted in accordance with the requirements of Seabrook Station Technical Specification 6.8.1.5.

Should you required further information regarding this matter, please contact Mr. Terry L. Harpster, Director of Licensing Services, at (603) 773-7765.

Very truly yours, NORTH ATLANTIC ENERGY SERVICE CORP.

h *

,Ted C. Feigendum Executive Vice President and Chief Nuclear Officer g

cc: H. J. Miller, Region i Administrator A. W. De Agazio, NRC Project Manager, Seabrook Station D. M. Silk, Senior Resident Inspector, Seabrook Station 9707220011 970630 T PDR ADOCK 05000443 R PDR

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' OPERATING DATA REPORT DOCKET NO. 50-443 UNIT Seabroot 1 DATE July 7,1997 COMPLETED BY P.E. Nardort TELEPHONE (603) 773-7074 OPERATING stall)S

1. Unit Name: Seabrook Station Unit 1

2. Reporting Ieriod: JUNE, 1997

3. Licensed Thermal Pov er (MW ): 3411 4.' Nameplate Rating (Gross MWe):  !!97

- 5. Design Electrical Rating (Net MWe): 1148

6. Maaimum Dependable Capacity (Gross MWe): 1204

7. Maaimum Dcpendable Capacity (Net MWe): 1158

8. If Changes Occur in Capacity Ratings (Items Number 3 through 7) Since Last Not Applicable Report, Give Reasons:

9. Power Level To Which Restricted, if Any (Net MWe): Nonc

10. Reasons For Restrictions, If Any: Not Applicable his Month Yr-to-Date Cumulative 11, lleurs in Reporting Period 720.0 4343.0 . 93840.0

12. Number of fluurs Reactor Was Crincal 104.5 3201.7 52876.6

13. Reactor Reserve Shutdown llours 0.0 0.0 953.3

14. Ilours Generator On-Line 49.7 3144.7 50445.5

15. Unit Reserve Shutdown llours 0.0 0.0 0.0

16. Gross Thermal Energy Generated (MWil) 71988 10603710 166674921

17. Gross Elec. Energy Generated (MWH) 20714 3746035 58128002

18. Net Electrical Energy Generated (MWil) 18540 3603346 55855295

• 19. Unit Service Factor 6.9 72.4 81.6

• 20. Unit Availability Factor 6.9 72.4 816

• 21. Unit Capacity Factor (Using MDC Net) 2.2 71.6 79.1

• 22. Unit Capacity Factor (Using DER Net) 2.2 72.3 79.4

• 23. Unit Forced Outage Rate 0.0 0.0 5.1

24. Shutdowns Scheduled Over Neat 6 Months (Type Date, None Schedueld and Duration of Each):

25. If Shut Down At End Of Report Period Estimated Date of Not Applicable Startup:

• NOTE: " Cumulative" values based on total hours starting 8/19/90, date Regular Full Power Operation began.

Increased MDC values (Items 6 & 7) starting 12/01/95.

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AVERAGE DAILY UNIT POWER LEVEL DOCKET NO. 50-443 UNIT Seabrook i DATE July 7,1997 COMPLETED BY P.E. Nardone TELEPl10NE (603) 773-7074 l

MONTil: JUNE, 1997 l DAY AVERAGE DAILY POWER LEVEL DAY AVERAGE DAILY POWER LEVEL (MWe-Net) (MWe-Net) 1 0 17 0 2 0 18 0 I l

3 0 19 0 l 4 0 20 0 l

5 0 21 0 I 1

6 0 22 0 l

7 0 23 0 8 0 24 0 9 0 25 0 10 0 26 0 ,

11 0 27 0 12 0 28 8 13 0 29 273 14 0 30 492 15 0 l l

i 16 0

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i 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 megawatt l

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UNIT SHUTDOWNS AND POWER REDUCTIONS -

DOCKET NO. 50443 UNTT Seabrook I DATE July 7,1997 COMPLETED BY P.E. Nardone TELEPIIONE (603) 773-7074 REPORT MONTil JUNE _1977 2

NO. DATE TYPE' DURATION REASON METIlOD OF SIIUTTING LICENSEE EVENT CAUSE & CORRECTIVE ACTION 1D PREVENT (IIOURS) DOWN REACTOR' REPORT # RECURRENCE PageIofI rehlms muge (exteN 332.3 hrs) 974)3 06/01/97 S 668.3 C 4 N/A 9744 06/28/97 S 2.0 B 9 N/A Performed Main Generator reverse power trip. Reactor power being hekt at 14 % RTP.

1 2 3 F: Forced Reason: Method:

S: Scheduled A - Equipmem Failure (Explain) 1 - Manual B - Maintenance or Test 2 - Manual Scram C - Refueling 3 - Automatic Scram D - Regulatory Restriction 4 - Cominued from previous month E - Operator Training & License Exammation 5 - Power Reducnon (Duration = 0)

F- Administrative 9 - Other (Explain)

G - Operational Error (Explain)

II - Other (Explain) 3 of 4

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.f REFUELING INFORMATION REQUEST i

DOCKET NO. ' 50L443 UNIT Seabrook1 DATE My 7,1997 COMPLETED BY P.E. Nardone TELEPHONE (603) 773-7074

1. - Name of Facility: Seabrook Unit 1

2. ' Scheduled date for next refueling shutdown: . Refueling Outage 6, 03/06/99 ~

3. Scheduled date for restart following refueling: Refueling Outage 6, 04/14/99 [ 40 days ]

4. Will refueling or resumption of operation thereafter require a technical specification change or other license amendment?

N/A

5. Schedule date(s) for submitting licensing action and supporting information:

N/A

6. Important licensing considerations associated with refueling, e.g., new or different fuel cu,ign or supplier, unreviewed design or performance analysis methods, significant changes in fuel design, new operating procedures:

N/A' i

7. The number of fuel assemblies (a) in the core (b) in the spent fuel storage pool and (c) in the new fuel storage vault (a) 193 (b) 372 4 (c)

Received 4 new fuel assemblies as replacements for 4 once burned leakers.

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 two annual and twelve eighteen-month refuelings with full core offload capability.

The current licensed capacity is adequate until at least the year 2010, 4 of 4