ML20207F494

Monthly Operating Rept for Feb 1999 for Seabrook Station. with

ML20207F494
Person / Time
Site:	Seabrook
Issue date:	02/28/1999
From:	Diprofio W, Nardone P NORTH ATLANTIC ENERGY SERVICE CORP. (NAESCO)
To:	NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
References
NYN-99030, NUDOCS 9903110259
Download: ML20207F494 (5)

Text

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""'+ North Atlantic Energy Service Corimration ,

gg.ggg' P.O. Box 300 '

Seabrook, Nil 03874 g

g's-Atlaritic.

(603) 474-9521 The Northeast Utilities System l March 4,1999 Docket No. 50-443  !

I NYN-99030 i

United States Nuclear Regulatory Commission

' Attention: Document Control Desk ,

Washington, DC 20555-0001 l 4

Seabrook Station Febritary 1999 Monthly Operatine Report l

Enclosed please find Monthly Operating Report 99-02. This report addresses the operating and shutdown experience relating to Seabrook Station Unit I for the month of February,1999 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. James M. Peschel, Regulatory Compliance Manager, at (603) 773-7194.

Very truly yours, NORTH ATLANTIC ENERGY SERVICE CORP.

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W.# . DIPr'o'fio" [ '

Station Director /

cc: . .

' H. J. Miller, NRC Region I Administrator J. T. Harrison,' NRC Project Manager, Project Directorate 1-3 k

R. K. Lorson, NRC Senior Resident Inspector 9903110259 990228 I -

PDR R

ADOCK 05000443 E 4 D)h PDR g J' i

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a OPERATING DATA REPORT DOCKET NO. 50-443 .

UNIT SeabrookI DATE March 1,1999 i

COMPLETED BY P.E. Nardone -

TELEPilONE (603) 773-7074 prggATING FTATUS

1. Unit Name: Seabronk Station Unit 1

2. Reporting Period: FEBRUARY 1999

3. Licensed Thermal Power (MWO: 3411

4. Nameplate Rating (Gross MWe): 1242

5. Dnign Electrical Rating (Net MWe): 1148

6. Maximum Dependable Capacity (Gross MWe): 1204 j

7. Maximum Dependable Capacity (Net MWe): 1158

8. If Changes secur in Capacity Ratire (Items humber 3 through 7) Since Last Not Applicable Report, Give Reasons:

9. Power Level To Which Restricted, If Any (Net MWe): None l l 10. Reasons For Restrictions, if Any: Not Applicable This Month Yr-to-Date Cumulative

11. Ilours in Reporting Period 672.0 1416.0 108433.0 1

12. Number of flours Reactor Was Critical 672.0 1416.0 65478.9 ,

13. Reactor Reserve Shutdown llours 0.0 0.0 953.3

14. Ilours Generator On.Line 672.0 1416.0 62943.3

15. Unit Reserve Shutdown llours 0.0 0.0 0.0

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16. Gross Thermal Energy Generated (MWII) 2286553 4810033 208970407

11. Gross Elec. Energy Generated (MWH) - 809736 1703070 73061016 i I

.18. Net Electrical Energy Generated (MWH) 779287 1639120 ' 70P j

• 19 Unit Service Factor 100.0 100.0 82.4

• 20. Unit Availability 1 actor 100.0 100.0 82.4

• 21. Unit Capacity Factor (Using MDC Neo 100.1 100.0 80.3  ;

• 22. Unit Capacity Factor (Using DER Net) 101.0 100.8 80.6

• 23. Unit l'orced Outage Rate 0.0 0.0 7.2

24. Shutdo.'rs Scheduled Over Next 6 Months (Type, Date, Refueling,03/27/99, 45 days and Duration of Each):

25. If Shut Down At End Of Report Period, Estimated Date of Not ApplicaNe Startup: i l

• 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.

Updated Item 4 per MUREG@20 in July 1998.

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AVERAGE DAILY UNIT POWER LEVEL DOCKET NO. 50-443 UNIT Seabrook1 DATE March 1,1999 COMPLETED BY P.E. Nardone TELEPilONE (603) 773-7074 l

I MONTH FEBPUARY,1999 i

DAY AVERAGE DAILY POWER LEVEL DAY AVERAGE DAILY POWER LEVEL  :

(MWe-Net) (MWe-Neo i 1160 17 1160 2 1160 18 1860 l

3 1160 19  !!60 4 1160 20 1160 5 1160 21 1160 6 1160 22 1159 7 1160 23 1151 8 1160 24 1159 j 9 1160 25 1160 10 1160 26  !!60 )

11 1161 27 1160 l 12 1160 28 1160 13 1160 -

14 1160 -

15 1160 -

]

16 1160 -

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.- l 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 i

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UNIT SHUTDOWNS AND POWER REDUCTIONS .

DOCKET NO. 50-443 UNIT Seabrook 1 DATE March 1,1999

• COMPLETED BY P.E. Nardone TELEPHONE (603) 773-7074 -

MONTil FEBRUARY 1999 NO. DATE TYPE' DURATION REASON' MET 110D OF SIIFITING LICENSEE EVENT CAUSE & CORRECTIVE ACTION 1U PREVENT -

(IIOURS) DOWN REACTOR' REPORT # RECURRENCE Page1of1 I" ' "*"*'I* #" *'

9942 2/23/99 F 0.0 A/F 5 N/A Loop 1 Reactor Protection Temperature channel.

Operations orocedures required a 4% RTP power reduction with trops I,3 or 4 temperaturs cha,ncis in a tripped condition. T!is action provides rnargin against an inadvertent OPDT reactor trip due to the Upper Plenum Flow Anomaly. The Plaid returned to full power operation that same day.

I 2 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 previous month E - Operator Training & License Examination 5 - Power Reduction (Duration = 0)

F- Administrative 9 - Other (Explain)

G - Operational Error (Explain)

II - Other (Explain)

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, , . . , . , . REFUELING INFORMATION REQUEST s

n DOCKET NO. 50-443 UNIT SeabrookI i DATE March 1,1999 COMPLETED BY ' P.E. Nardone ,

TELEPHONE (603) 773-7074 i

1, Neme of Facility: Seabrook Unit 1  !

2. Scheduled date for next refaeling shutdown: ' Refueling Outage 6, 03/27/99

3. ' Scheduled date fut restart following refueling: Refueling Outage 6, . 05/10/99 [ 45 days ]  !

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4. V/ill refueling or resumption of operation thereafter require a technical specification change or other license amerulment?

'N/A i

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

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N/A-( ,

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 procedurer:

i N/A 7i 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) 456 (c) 0 'l Cycle 07. Fuel Receipt l added 76 Fuel Assemblies. )

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. 8. The present licensed spent fuel pool storage capacity and the size of any increase m licensed storage capacity that has been l

- requested or is planned, in number of fuel assemblies: 1 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.

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