ML20086M955

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Monthly Operating Rept for June 1995 for Seabrook Station Unit 1
ML20086M955
Person / Time
Site: Seabrook 
Issue date: 06/30/1995
From: Feigenbaum T, Nardone P
NORTH ATLANTIC ENERGY SERVICE CORP. (NAESCO), NORTHEAST UTILITIES SERVICE CO.
To:
NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
References
NYN-95054, NUDOCS 9507250061
Download: ML20086M955 (5)


Text

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u,,,i A. North -

North Atlantic Energy Service Corporation P.O. Box 300 f,y tlantic seabreet, xu o3874 (603) 474 9521, Fax (603) 474-2987 -

The Northeast Utilities Systern Ted C. Feigenbaum Seni r Vice President &

NYN-95054 Chief Nuclear Officer July 14,1995 United States Nuclear Regulatory Commission Washington, DC 20555 Attention:

Document Control Desk

Reference:

Facility Operating License NPF-86, Docket No. 50-443

Subject:

Monthly Operating Report Gentlemen:

Enclosed please find Monthly Operating Report 95-06. This report addresses the operating and shutdown experience relating to Seabrook Station Unit i for the month of June,1995 and is submitted in accordance with the requirements of Seabrook Station Technical Specification 6.8.1.5.

Very truly yours,

),

JNA Ted C. Feigenba Enclosure cc:

Mr. Thomas T. Martin Regional Administrator United States Nuclear Regulatory Commission Region 1 475 Allendale Road King of Prussia PA 19406 Mr. Albert W. De Agazio, Sr. Project Manager Project Directorate I-4 Division of Reactor Projects U.S. Nuclear Regulatory Commission Washington, DC 20555 Mr. John B. Macdonald NRC Senior Resident Inspector I O Box 1149 Seabrook, Nil 03874 9507250061 950630 i,

i PDR ADOCK 05000443 I l R

PDR

OPERATING DATA REPORT DOCKET NO.

50443 UNIT Seabrook 1 DATE 07/14/95 COMPLETED BY P.E. Nardone TELEPilONE 603/474-9521 Ext. 4074 OfLRiTINGATATL'S 1.

Umt Name:

Seabrook Station Umt 1 2.

Regurtmg Periixt:

JUNE 1995 3.

Licensed Thermal Power (MWO:

3411 4.

Nameplate Ratmg (Gross MWe):

1197 5.

Design Electrical Ratmg (Net MWe):

1148 6.

Maximum Dependable Capacity (Gross MWe):

1200 7.

M4ximum Dependable Capacity (Net MWe):

1150 8.

If Changes Occur in Capacity Ratings (!tems Number 3 through 7) Smce Last Not Apphcable Report, Give Reasons:

9.

Power level To Which Restricted, if Any (Net MWe):

Estimate 1080MWe 10.

Reasons For Restrictions, if Any:

Final Stage FW lleating capabdity lost for remainder of Cycle.

This Month Yr-t+ Date Cumuhtive liours in Reportmg Period 720.0 4343.0 762 %.0 l

I 12.

Number of Ilours Reactor Was Cntical 469.6 4092.6 37359.6 13.

Reactor Reserve Shutdown llours 0.0 0.0 953.3 14.

Ilours Generator On-Line 426.5 4N9.5 35193.7 15.

Unit Reserve Shutdown llours 0.0 0.0 0.0 16.

Gross Thermal Energy Generated (MWil) 1470050 13H2(M4 115663452 17.

Gross Elec. Energy Generated (MWil) 514566 4877246 40301580 18.

Net Electrical Energy Generated (MWil) 495429 4693400 38720516 4

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  • 19.

Umt Service Factor 99.2,

93.2 79.3

  • 20.

Unit Availabihty Factor 59 2 93.2 79.3

  • 21.

Unit Capacity Factor (Using MDC Net) 59.8 N.0 76 9

  • 22.

Unit Capacity Factor (Usmg DER Net) 59.9 94.1 77.0

  • 23.

Unit Forced Outage Rate 40.8

6. 8 68 24.

Shutdowns Scheduled Over Nett 6 Months (Type, Date.

Refuelmg.11/0#

  • 45 Days ard Duration of Each):

25.

If Shut Down At Ers! Of Report Perial, Estimated Date of 07M5/95 - Reactor critical on OY29'95, Problems with Main Startup:

Generator Breaker closure.

  • NOTE: *Cumulatne" salues based on total hours startmg 8/194). date Regular Full Power Operation began.

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AVERAGE DAILY UNIT POWER LEVEL DOCKET NO.

50-443 UNIT Seabrook i DATE 07/14/95 COMPLETED BY P.E. Nardone TELEPilONE 603/474-9521 Ext. 4074 MONTil: JUNE,IWS DAY AVERAGE DAILY POWER LEVEL DAY AVERAGE DAILY POWER LEVEL (MWe-Net)

(MWe-Net)

I 1163 17 1162 T

2 1163 18 888 3

1163 19 0

4 1163 20 0

5 1162 21 0

6 1162 22 0

7 1162 23 0

8 1162 24 0

9 1161 25 0

10 1161 26 0

11

!!62 27 0

i 12

!!62 28 0

13 1162 29 0

14 1163 30 0

15 1161 16 1161 INSTRUCTIONS On thn format, int the average daily umt power level m MWe-Net for each day m the repirung nwmh. Compute to the nearest whole inegawatt.

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UNIT SIlUTDOWNS AND POWER REDUCTIONS

-1 DOCKET NO.

54443 UNIT Seabnek I

~

DATE 07/1495 COMPLE111D BY P.E. Naime TEl EPilONE NW474 9521 Ext. 4074 REPORT MONT11 Jt'NE IWS NO.

DATE TYPE' DURATION REA50N ME11tOD OF S11LTI1NG LICENSEE EVENT CAUSE & CORRECTIVE ACTION TO PRE \\ TAT 3

8 (IIOURS)

DOWN REACTOR REPORT #

RECURRENCE Page1 of1 954)I Orvl8 95 F

293.5 A

2 95 G,

Mamal trtp as a result of the loss of both tetune Electm-II)draube Contret (EllC) pumps EllC p. imps lost electrwal power w hen Umt Substauxm 14 feeder breaker tripped open while crosstied to Utut Substatum 21.

See LER 9542 for informanon on nvt cause ami correcove actan i

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F: Forced Reasoir Method:

5: Scheduled A - Equipment Fatture (Explain) 1 - Manual B - Mamrenance or Test 2 - Mamal Scram C - Refuchng 3 - Automatr Scram D - Regulatory Restrxtum 4 - Contmued from previous numth E - Operator Trammg & lxense Examinanon 5 - Power Reductam (Duratum = 0)

F - Admimstranse 9 - Other (Explain)

G - Operatamal Error (Explam)

II - Other (Explain) 3 of 4

REFUELING INFORMATION REQUEST DOCKET NO, 50443 UNIT Seabnok 1 DATE o7/14/95 COMPLETED BY P.E. Nardone TELEPHONE 603/474-9521 Ext. 4(n4 1.

Name of Facility:

Seabrook Unit 1 2.

Scheduled date for next refueling shutdown:

Refueling Outage 4,11/04/95 3.

Scheduled date for restart following refueling: Refueling Outage 4,12/19/95 4.

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

Yes, revisions to Accumulator and Refueling Water Storage Taik baron concentration will be required.

5.

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

June,1995 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 procedures:

None 7.

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

(a)la Core:

193 (b) 208 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:

Licenred 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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