ML20207F494

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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)


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North Atlantic Energy Service Corimration gg.ggg' P.O. Box 300 Seabrook, Nil 03874 g's Atlaritic g

(603) 474-9521 The Northeast Utilities System March 4,1999 Docket No. 50-443 NYN-99030 i

United States Nuclear Regulatory Commission

' Attention: Document Control Desk Washington, DC 20555-0001 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 4 D)h 9903110259 990228 I

PDR ADOCK 05000443 E

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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

10.

Reasons For Restrictions, if Any:

Not Applicable l

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

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.18.

Net Electrical Energy Generated (MWH) 779287 1639120 '

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  • 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

  • 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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r AVERAGE DAILY UNIT POWER LEVEL DOCKET NO.

50-443 UNIT Seabrook1 DATE March 1,1999 COMPLETED BY P.E. Nardone TELEPilONE (603) 773-7074 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 12 1160 28 1160 13 1160 14 1160 15 1160

]

16 1160 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 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 9942 2/23/99 F

0.0 A/F 5

N/A I" '

"*"*'I*

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 ]

I 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:

l 1

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 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

- 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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