ML20059M763

Monthly Operating Rept for Oct 1993 for Seabrook Station Unit 1

ML20059M763
Person / Time
Site:	Seabrook
Issue date:	10/31/1993
From:	Feigenbaum T, Nardone P NORTH ATLANTIC ENERGY SERVICE CORP. (NAESCO)
To:	NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
References
NYN-93157, NUDOCS 9311190301
Download: ML20059M763 (5)

Text

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Seab k, NH 03874 Telephone (603)474 9521

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Energy Service Corporation Ted c. Felgenbau'm Senior Vice President and Chief Nuclear Officer NYN-93157 November 15,1993 United States Nuclear Regulatory Commission Washington, DC 20555 Attention:

Document Control Desk

References:

Facility Operating License NPF-86, Docket No. 50-443 Subject; Monthly Operating Report Gentlemen:

Enclosed please find Monthly Operating Report 93-10. This report addresses the operating and shutdown experience relating to Seabrook Station Unit 1 for the month of October,1993 and is submitted in accordance with the requirements of Seabrook Station Technical Specification 6:8.T.S.

/

Very ly yours, j

Gy'GAIA/S Ted C. Feigeitra m n

Enclosure cc:

Mr. Thomas T. Martin F.egional Administrator United States Nuclear Regulatory Commission Region i 475 Allendale Road King of Prussia, PA 19406 l

Mr. Albert W. De Agar.io, Sr. Project Manager t

Project Directorate 1-4 Division of Reactor Projects U.S. Nuclear Regulatory Commission Washington, DC 20555 Mr. Noel Dudley

(

NRC Senior Resident Inspector P.O. Box 1149 Seabrook, Nil 03874 1

pfh a member f the Northeast (Jtilities system 7'

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- OPERATING DATA REPORT DOCKET NO. 50_-443 UNIT Seabrook 1 DATE 11/15/93 COMPLETED BY P. E. Nardone TELEPHONE (603) 474-9521 Ext. 4074 OPERATING STATUS 1.

Unit Name:

Seabrook Station Unit 1 2.

Reporting Period:

OCTOBER 1993 3.

Licensed Thermal Power (MWt):

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 Acolicable 9.

Power Level To Which Restricted, If Any:

None 7

10. Reasons For Restrictions, If Any:

Not Acolicable

-'I This Month Vr.-to-Date Cumulative

11. Hours In Reporting Period 745.0 7296.0 61729 0 i

12, riumber Of Hours Reactor Was Critical 623.7

-6739.7 26243 1 t

13. Reactor ReserveShutdown Hours 0.0 0.0

.,_ 953.3-

14. Hours Generator On-Line 595 5 6632.3 24213.2

15. Unit Reserve Shutdown Hours 0.0 0.0 0.0-

16. Gross Thermal Energy Generated (MWH)- 1930953 22345939 78869496

17. Gross Elec. Energy Generated (MWH) 672601 7831634 27393272

18. Net Electrical Energy Generated (MWH) 645800' 7532175 26308988

• 19. Unit Service Factor 79.9' 90.9 81.4

• 20. Unit Availability Factor 79 9 90.9 81.4

• 21. Unit Capacity Factor (Using MDC Net)-

75.4 89.8 78.3 1

• 22, Unit Capacity Factor (Using DER Net) 75.5 89.9

~78.4

• 23. Unit Forced ~0utage Rate 20.1 9.1 6.6

24. Shutdowns Scheduled Over Next 6 Months (Type, Date, and Duration of Each):

None Scheduled

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

• NOTE: " Cumulative" values based on total hours starting 08/19/90, date Regular Full Power Operation began.

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AVERAGE DAILY UNIT POWER LEVEL DOCKETNO..@-443 UNIT Seabrook 1 DATE 11/15/93 COMPLETED BY P. E. Nardone TELEPHONE (603) 474-9521 Ext. 4074 a

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MONTH OCTOBER. 1993 6;

DAY AVERAGE DAILY POWER LEVEL DAY AVERAGE DAILY POWER LEVEL (MWe-Net)

(MWe-Net),

1 0

17 1152 2

0 18 1152 3

0 19 1151 4

0 20 1152

'S-0 21 1152 0

22 1152 6.

i 7

282 23.

1152 8

479 24 1153' 9

769 25 1153

-l 10 1149 26 1152 11 1148 27 1152

.i 12 1148 28 1152 13 1151 29 1152-i 14

'1151 30 1152 15 1151 31 1152 16 1151 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 SHUTDOWNS AND POWER REDUCTIONS DOCKET NO. 50-443 UNIT Seabrook 1 DATE 11/15/93 REPORT MONTH OCTOBER. 1993 COMPLETED BY P. E. Nardone l

TELEPHONE (603) 474-9521 Ext. 4074 f=

No.

Date Type Duration Reason' Method of Licensee Cause & Corrective 2

(Hours)

Shutting Event Action to 3

Down Reactor Report #

Prevent Recurrence Page l of I'

' 05 10/01/93 F_

149.5 A

4 93-018 Automatic reactor trip as a result of a ' RCP undervoltage trip signal.

This was caused by arcing of the exciter field brushes which resulted in a degrading field condition on the main.

generator. See LER 93-018 for information on root -

cause and corrective action.

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3 F: Forced Reason:

Method:

S:. Scheduled A-Equipment Failure-(Explain) 1-Manual B-Maintenance or Test 2-Manual Scram C-Refueling 3-Automatic Scram D-Regulatory Restriction.

4-Continued from E-Operator 1 raining & License Examination previous month F-Administrative 5-Power Reduction G-Operational Error (Explaio)

(Duration - 0)

H-Other-(Explain):

9-Other (Explain) 3 of 4

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DOCKET NO. 50-443 UNIT Seabrook 1 DATE 11/15/93 COMPLETED BY P. E1 Nardone' TELEPHONE (603)~474-9521 Ext. 4074 REFUEllNG INFORMATION REQUEST 1.

Name of facility; Seabrook Unit 1 2.

Scheduled date for next refueling shutdown:

Refueling Outage 3. 03/26/94 3.

Scheduled date for restart following refueling:

Refueling Outage 3, 05/20/94 t

4.

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

j No f

5.

Schedul2d 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-

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supplier unreviewed design or performance analysis methods, significant changes in fuel design, new 6

operating procedures:

j None.

. 7.

The number of fuel assemblies (a) in the core and (b) in the spent fuel storage. pool':

I (a) In Core:

193 (b) 136 8.

The present licensed spent fuel pool storage capacity'and theaize of any-increase in licensed storage capacity that has been requested or is planned, in number o' fuel assemblies:

Present licensed capacity: 1236' No increase in storage capacity requested or planned.

9 The prcjected date.of the last refueling that can be discharged to the spent fuel pool assuming the present licensed capacity.:

' Licensed capacity of 1236 fuel asseinblies 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.

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