ML20151V595

Monthly Operating Rept for Aug 1998 for Seabrook Station, Unit 1.With

ML20151V595
Person / Time
Site:	Seabrook
Issue date:	08/31/1998
From:	Diprofio W, Nardone P NORTH ATLANTIC ENERGY SERVICE CORP. (NAESCO)
To:	NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
References
NYN-98106, NUDOCS 9809150027
Download: ML20151V595 (5)

Text

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'%, North Atlantic Energy Senice Corporation ,

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Seahnmk. Nll 03374 l

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A RIlklO (603) 474-9521 1

The Northeast Utilities System )

September 9,1998 Docket No. 50-443 NYN-98106 United States Nuclear Regulatory Commission i Attention: Document Control Desk Washington, DC 20555-0001 .

1 Seabrook Station Monthly Operatine Report Enclosed please find Monthly Operating Report 98-08. This report addresses the operating and shutdown experience relating to Seabrook Station Unit I for the month of August,1998 and is submitted in accordance with the requirements of Seabrook Station Technical Specification 6.8.1.5.

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

Very truly yours, .

NORTH ATLANTIC ENERGY SERVICE CORP.

-h' W. A. DfProfio C_

Station Director cc:

11. J. Miller, NRC Region 1 Administrator J. T. Harrison, NRC Project Manager, Project Directorate 1-3 R. K. Lorson, NRC Senior Resident Inspector t n i

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l 9809150027 980831 PDR 1

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OPERATING DATA . REPORT DOCKET NO. 50-443 UNIT Seabrook I DATE September 9,1998 COMPLETED BY P.E. Nardone TELEPilONE (603) 773-7074 OPERATING STA11'S

1. Unit Name: ' Seabrook Station Unit i

2. Reportmg Period: AUGUST 1998

3. Licensed Thermal Power (MWt): 3411

4. Nameplate Rate);(Gross MWe): 1242

5. Design Electrical Ratmg (Net MWe): 1148

6. Maximum Depencuble Capacity (Gross MWe): 1204

7. Maximum Dependable Capacity (Net MWe): 1158

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

9. Power Level To Which Restricted, If Any (Net MWe): None 1 1

10. Reasons For Restrictions,if Any: Not Apphcable  !

This Month Yr-to-Date Cumulative iI, llours in Reporting Period 744 0 5831.0 104088.0

12. Number of thors Reactor Was Cntical 744.0 4778.1 61441.6 I l

13. Reactor Reserve Simtdown Hours 0.0 0.0 953.3 1

14. Ilours Generator On-Line 744.0 4717.2 58948.6

15. Unit Reserve Shutdown 11ours 0.0 0.0 0.0

16. Gross Thermal Energy Generated (MWil) 2537484 15994448 195452531

17. Gross Elec. Energy Generated (MWII) 897490 5644922 68285831

18. Net Electrical Energy Generated (MWII) 864082 54322 % 65629950

• 19. Unit Service Factor 100.0 80.9 81.8

• 20. Unit Availability Factor 100.0 80,9 81.8

• 21. Unit Capacity Factor (Using MDC Net) '100.3 80.5 79.6 i

'22. Unit Capacity Factor (Using DER Net) 101.2 81.2 79.9

• 23. Unit Forced Outage Rate 00 19.1 7.1

24. Shutdowns Scheduled Over Next 6 Months (Type, Date, None Scheduled 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, dat: Regular Full Power Operation began.

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

Updated Item 4 per NUREG41020 in July 1998.

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AVERAGE DAILY UNIT POWER LEVEL DOCKLT NO. 50-443

, , UNIT Seabrook 1 DATE September 9,1998 COMPLETED BY F.E. Nardane TELEPilONE (603) 773-7074 MONTil AUGUST 1998 DAY AVERAGE DAILY POWER LEVEL DAY AVERAGE DAILY POWER LEVEL (MWe-Net) (MWe-Net) 1 1162 17 1162 2 1162 18 1162 3 1162 19 1162 4 1162 20 1161 5 1162 21 1161 6 1162 22 1161 7 1161 23 1162 8 1162 24 1161 9 1162 25 1161 10 1161 26 1162 11 1161 27 1161 12 1161 28 1161 13 1162 29 1160 14 1161 30 1160 15 1161 31 1160 1

16 1162 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.

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UNIT SIIUTDOWNS AND POWER REDUCTIONS -

DOCKET NO. 50-443 UNIT Seabrook I _

DATE September 9,1998 COMPLETED BY P.E. Nardone .

TELEPilONE (603) 773-7074 MONTil AUGUST 1998 NO. DATE TYPE' DURATION REASON 3 METIIOD OF SIIUTTING LICENSEE EVENT CAUSE & CORRECTIVE ACTION TO PREVF_NT

[IIOURS) DOWN REACTOR 3 REPORT # RECURRENCE Page IofI No entries for tius month t 2 3 F: Forced Reason: Metimml; S: Scheduled A - Equipment Failure (Explain) 1 - Manual B - Maintenance or Test 2 - Manual Scram C - Refueling 3 - Automatic Scram D - Regulatory Restnction 4 - Contmued from previous month E - Operator Training & License Examination 5 - Power Reduction (Duration = 0)

F - Administrative 9 - Other (Explain)

G - Operational Error (Explain)

II - Other (Explain) 3 of 4

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,;,,, REFUELING INFORMATION REQUEST l

DOCKET NO. 50-443 UNIT Seabrook i DATE September 9.1998 COMPLETED BY P E. Nardone I l

TELEPilONE (603) 773-7074 l

1. Name of Facility: Seabrook Unit 1  !

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2. ' Scheduled date for next refueling shutdown: Refueling Outage 6, 05/01/99

3. Scheduled date for restart following refueling: Refueling Outage 6. 06/09/99 [ 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 design or supplier, unreviewed j design or performance analysis methods, significant changes in fuel design, new operating procedures:

N/A

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) 376 (c) 0

8. The present licensed spe .i 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 oc 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 refuelmgs with full core ofiload capability.

The current licensed capacity is adequate until at least the year 2010.

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