ML20066G867

Monthly Operating Rept for Jan 1991 for Seabrook Station Unit 1

ML20066G867
Person / Time
Site:	Seabrook
Issue date:	01/31/1991
From:	Feigenbaum T, Nardone P PUBLIC SERVICE CO. OF NEW HAMPSHIRE
To:	NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
References
NYN-91024, NUDOCS 9102200067
Download: ML20066G867 (7)

Text

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New' Hampshire Yankee =::t-Chief trewtive Offeer NYN 91024 -

'Pebruary 14, 19911 United States Nuclear Regulatory Commission; Washington, DC 20555 Attention: Document Control Desk

Reference:

Facility Operating License NPF.86, Docket No. 50 443 F,ubject: Monthly Operating Report Gentlement Enclosed please find Monthly Operating Report 9101. This report addresses the operating and shutdown experience relating to Seabrook Station Unit 1 for the month of; ,

January,1991 and is submitted in accordance with the requirements of Seabrook Station l Technical Specification 6.8.1.5. i i

Very. truly yours, Ted C. Felgenbaum - l Enclosure (s)

TCP:WJT/ tad.

cc: - Mr. Thomas T. Martin Regional Administrat'or United States Nuclear- Regulatory Commission ~ '

Region 1 475 Allendale: Road King of Prussia,- PA 19406 Mr. Noel Dudley.

.o NRC Senior. Resident faspector F,0. Box- 1149 '

l Seabrcok, NH 03874' l 9102200067 Y103:31 PDR ADOCK 05000443 h.

R PDR -t I

. New Hompshire Yankee Division of Public Service Company of New Hampshlre gpp j

.1NOOfjf

. P.O. Im 300

• Seabrook, NH 03874

• Telephone (603) 474 9521  ;- j

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New llampshiro Yackee February 14, 1991 f

ENCLOSUEt TO NYN 41024 1

OPERATING DATA REPORT DOCKET NO. $0-443 UNIT _Jenbrook 1 DATE 02/14/91 COMPl.ETED BY _f._Nardone TELEPHONE _(fW3) 474-952l (Ext. 4074)

OPERATING STATUS

1. Unit Haee: Seabrook Station Unit 1

2. Reporting Period JANUARY 1991

3. Licensed Thermal Power (HWt): 3411

4. Haneplate Rating (Gross HWe): 1197

5. Design Electrical Rating (Net M4e): 1146

6. Maximum Dependable Crpacity (Gross H'4e): 1200

7. Maximum Dependable Capacity (Net HWe): 11$0 .

8. If Changus occur in Capacity Ratings (Items Number 3 Through 7)-

Since Last Report, Give Reasons _._Not Aeolicable

9. Power Level To Which Restricted, If Any: , None

10. Reascne For Restrictions, If Any: NEL Aeolicable __ _

'this Month Yr..to-Date cumulative-

11. Hourt In Reporting Period 744.0:_ 744.0_, 37633.0

12. Number Of Hours Reactor Was Critical _. 744.0 744,0 6463.3

13. Retictor Reserve Shutdown Houts 0.0 0.0 9534 1-

14. Hour; Generator On-Line 74460 744.0__ 4871.4

15. Unit Ret rve Shutdown Hours 0_L ,,, 0.0 0.q .

16. Gross Thermal Energy Generated (HWH) 2535476 253547_6__ _1}))5802 l

17. Gross Elet. Energy Generated (HWH)

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889130 889130__ ,_5161047

16. Het Electrical Energy Conerated (HWH) 854774 354774__ 49B'171

• 19. Unit Service Fatto' 100.0 ,__ 100.0 SM

. ,__100.0

• 20. Unit Availability factor 1004 9._ 8 8 ._2_

• 21. Unit Capacity Factor (Using KDC Net) 99.9 99.R., 85.7, I *22. Unit Capacity Factor (Using-)ER Net) 100.1 100.1 85 0 l *23. Unit Forced Outage Rate 0.0 ._

0.0 11.8

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

_ REFUELING. 07/27/91. 67 BAYS _ , ,

25. If Shut Down At End Of Report Pe'riod, Estimated Date Of StartNps Not Acolicable 1

i r

• NOTE: Cr.aulative values based on hours storting-08/19/90, date Regular Full Power Operation began.

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. . AVE!.1GE DAILY UNIT POWER LEVEL DOCKET NO. 50-443 UNIT Seabrook 1 DATE 02/14/91 COMPLETED BY P. Nardone TELEPHONE (603) 474-9521 (Ext. 4074) l MC N fl JANUARY. 1991 DAY 'VLtAGE DAILY POWER LEVEL DAY AVERAGE DAILY POWER LEVEL  !

(HWe-Net) (HWe-Net) L) 1 1148 16 1149 q l

2 1150 37 1150 3 1151 A) 1151 4 _1149 19 1150

_ . _ , 1147 20 1152 6 lu9

.. 21 , , , . _ , 1151 7

. ..1149 22 _ ,, ,,_1149 8 1147 23 _ 1148 5

9 1146 24 1150 10 1149 25 1148 11 1147 .. 26 1148 l? ._ 1141 _ . 27 1150 13 1140

% 28- 1150 l 14 . J '( % 0,

_ 29 1150 q

\ 15 laL _

30 1150 31 1150 INSTRUCTIONS on this tormat, list the tverage daily unit '.sover level in HWe-Net for each day in the reporting month.

I Comput i te. the nearest v;ule megawatt.

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50-443 .-

' UNIT SHUTDOWNS'AND POWER REDUCTIONS DOCKET NO.- ,.z

- UNIT Sm brook 1 "

- DATE 02114191 .'

REPORT MONTH ' JANUARY. 1991 COMPLETED BY P.'Nardone TELEPHONE-(603) 474-95211 (Ext. 4074) -

No. 'Date  : Type l . Duration Reasont Method of Licensee Cause & Corrective-(Hours). ' Shutting ' Event. Action to Prevent Recurrence

~

Down Reactor3  : Report.d.

Page 1 ef 1:

1NO ENTRIE'S FOR THIS MONTH

_ J

1 2-: -3.

F : , Forced-, ~ Reason:' _ . ...

& thods-S: ' Scheduled A-Equipment: Failure .' (Explain) : Manual ~

'B-Maintenance-or Test ~. . 2-Manual' Scram'-

C-RefuelingL L3-Automatic Scram

'D-Regulatory,-Restriction ,,

4- Continued ' front E-Operator Training & License Exantination ' ..' previous month'

~

.F-Administrative ~ .

5-Power Reduction-

G-Operational Error - (Explain) - '

. (Duration - 0) 7 H-Other.(Explain) %Other (Explain))

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l. . ' .. .,_~ .L .a s -.~ . - - , . . -. . . . ~ . ~ - . . , L . - . - - - .- - - . - -- --- :- m --

2 DOCKET NO. 50-443 .,

UNIT Seabrook 1 ,

f i

DATE 02/14/91 _

CORRECTIVE MAINTENANCE

SUMMARY

FOR SAFETY RELATED EQUIPMENT COMPLETED BY P. Nardone

.i JANUARY. 1991 '

REPORT MONTH TELEPHONE (603) 474-9521 (Ext. 4074) ,

- Page 1.of 1 DATE ' SYSTEM COMPONENT' MAINTENANCE ACTION

01/03/91 Reactors '.1-RC-P-1C Low flow detected on No. 1 seal leakoff.

Coolant = Loop.3- .

Replaced pump: seal.. assembly.

~

Reactor Coolant ,.

-Pump '[

01/08/91 Reactor Vessel' 1-MM-CP-486B . Microprocessor communication failure.

Level' Indication Train B . .

Replaced +5 VDC power supply.and memory i System! . Reactor VesselLLevel circuit board.

Electronics Cabinet-01/10/91 Main Steam . 1-MS-V-92 -

Valve failed to return to full open l Steam: Generator D- - position..following.10I valve closure -

' Main Steam.  ; surveillance. Hydraulic' pump cycling-Isolation Valve frequently.z Replaced' fast and slow.  ;

closure solenoids.and pump on. hydraulic

system..

.; 01/31/91 -Main Steam 1-MS-V-394 Valve not fully. closing during'surveillt.nce Train'AD testing because of misaligned valve plug.= wt

-. Main' Steam' Replaced valve. trim. '

~ Supply. Valve to EFW Pump-t

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,s # , r , , .,-y - - ,wu. , .~ ' ~ . .

-# ., ,a , % v. -.#......,,y.,

y DOCKET NO. 50 t,43 l

+*

. UNIT Seabrook 1 DATE 02/14/91 i COHPLETED BY P. Nardone TELEPHONE (603) 474-9521 (Ext. 4074)

REFUELING INFORMAjlpN RE011)lH,

1. Name of facility:

Seabrook Unit 1 '

2. Scheduled date for next refueling shutdown: 07/27/91

3. Scheduled date for restart following refueling: 10/02/91

4. Vill refueling or resumption of operation thereafter require a technical l specification change or other license amendment?

Yes, the removal of the Residual Heat Removal System Autoclosure Interlock I

5. Scheduled date(s) for submitting licensing action'and supporting.

Information:

New Hampshire Yankee Letter NYN-91011, submitted on January 24, 1991

6. Important licensing considerations associated with refueling, e.g.,

new or different fuel design or supplier..unreviewed design-or performance analysis methods, significant.changos in fuel design, new operating procedures:

None I

7. The number of fuel assemblies (a) in the core and-(b) in the spent fuel storage pools (a) In Core 193 (b) ___ 0

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:

Licensed capacity of 1236 fuel assemblies based on sixteen refuelings and full core offload capability. 1 The current licensed capacity is adequate until at least the year 2014.

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