ML20065R453

Monthly Operating Rept for Nov 1990 for Seabrook Station Unit 1.W/901214 Ltr

ML20065R453
Person / Time
Site:	Seabrook
Issue date:	11/30/1990
From:	Feigenbaum T, Nardone P PUBLIC SERVICE CO. OF NEW HAMPSHIRE
To:	NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
References
NYN-90212, NUDOCS 9012190059
Download: ML20065R453 (7)

Text

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New Ham hire

.Y,hhk(psh Ted C. Feigenbovm Preudent ond Chief E mutive Of fger l

NYN- 90212 December 14, 1990 United States Nuclear Regulatory Commission Washington, DC 20555 Attention: Document Control Desk

References:

facility Operating License NPF-86, Docktt No. 50-443

Subject:

Monthly Operating Report Gentlemen:

Enclosed please find Monthly Operating Report 90-11. This report addresses the operating and shutdown experience relating to Seabrook Station Unit I for the month of November, 1990 and is submitted in accordance with the requirements of Seabrook Station Technical Specification 6.8.1.5.

Very truly yours, QQbl.2ebe Ted C. Feigertbaum Enclosure cc: Mr. Thomas T. Martin Regional Administrator United States Nuclear Regulatory Commission Region I 475 Allendale Road King of Prussia, PA 19406 Mr. Noel Dudley NRC Senior Resident inspector P.O. Box 1149 Seabrook, NH 03874 l

l 9012190059 901130 1

PIiR ADOCK 05000443 R PDR New Hampshire Yankee Division of Public Service Company of New Hampshire P O. Box 300

• Seabrook, NH 03874 + Telephone (603) 474 9521 -

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OPERATING DATA REPORT DOCKET NO. 50-443

. UNIT Seabrook 1 ,

DATE 12/14/90 '

COMPLETED BY P. Nardone 1 TELEPHONE (603) 474-9521 i (Ext. 4074) l OPERATING STATUS

1. Unit Name: Seabrook Station Unit 1

2. Reporting Period NOVEMBER 1990

3. LicensedThermalPower(MWt): 3411

4. Nameplate Rating (Gross MWe): 1197

5. Design Electrical Rating (Net MWe): 1148

6. MaximumDependableCapacity(GrossMWe): 1200

7. 1150

8. MaximumDependableCapacity(NetMWe)(:

If Changes Occur in Capacity Ratings ItemsNumber3Through7)

Since Last Report, Give Reasons: Not Applicable

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

10. Reasons for Restrictions, If Any: Not Applicable This Month Yr.-to-Date Cumulative

11. Hours In Reporting Period 720.0 8016.0 36145.0

12. Number Of Hours Reactor Was Critical 406.4 4780.9 4975.3

13. Reactor Reserve Shutdown Hours 0.0 953.3 953.3

14. Hours Generator On-Line 362.2 3383.4 3383.4

15. Unit Reserve Shutdown Hours 0.0 0.0 0.0 16.GrossThermalEnergyGenerated(MWH) 1150226 10064596 10065686

17. Gross Elec. Energy Generated (MWH) 396964 3382589 3382589 18.NetElectricalEnergyGenerated(MWH)- 381132 3238333 3238333

• 19. Unit Service Factor 50.3 -

81.2 81.2

• 20. Unit Availability Factor 50.3 81.2 81.2

• 21.UnitCapacityFactor(UsingMDCNet) 46.0 77.2 77.2

• 22. Unit Capacity factor (Using DER Net) 46.1 77.3 77.3

• 23. Unit Forced Outage Rate 49.7 18.8 18.8

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 Applicable

• NOTE: Values based on accumulated hours starting 08/19/90, date Regular Full Power Operation began.

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AVERAGE DAILY UNIT POWER LEVEL

.. DOCKET N0. 50-443 UNIT Seabrook 1 DATE 12/11/90 COMPLETED BY P. Hardone TELEPHONE (603) 474-9521 (Ext. 4074)

MONTil NOVEMBER, 1990 DAY AVERAGE DAILY POWER LEVEL DAY AVERAGE DAILY POWER LEVEL (MWe-Net) (MWe-Net) 1 0 16 0 2 310 17 0 3 1069 18 0 4 1152 19 0 5 1152 20 0 6 1152 21 0 7 1152 22 0 8 1152 23 194 9 697 24 935 10 0 25 1151 11 0 26 1152 12 0 27 1153 13 0 28 1155 14 0 29 1153 15 0 30 1152 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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IEIT SHUIDOHtG AND PCEHI few.: nag D ut.T 10. 50-443' INIT Seabrook 1 i<t.iucr M2fIH NO'MER, 1990 DATE 12/14/90

• COTLETED BY P. Nardcne ~

TEMPIDiE f6031 474-9521 (Ext. 4074)

No. Date Type l Duration Reason 2 Method of Licasee Cause & Corrective (Hours) Shutting Event Action to Down Reactor 3 Report # Prevent Recurren Page 1 of 2 90-28 11/01/90 F 29.5 A 4 N/A Ground detected cn exciter field.

Generator breaker opened while reactor power maintained at 10% RTP.

C w.sa ul turbine loading following repair of cable frun exciter collector ring to exciter field.

1 2 F: Forced 3 Reason:

S: Scheduled Method:

A-Equipnent Failure (Explain) 1-Fanual B-Maintenan or Test C-Refueling 2-Fanual Scram IMlegulatory Restriction 3-Automatic Scram E-Operator Training & License Examinaticn 4-Continued frun previous nmth F-Administrative 5-Ibwer Reduction G-Operaticnal Error (Explain)

H h (Explain) (Duration = 0) 9-Other (Explain) 3 of 6 d __.

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IMIT SUIDOWS NO POWER REDUCTIGIS DOOGT NO. 50-443_

i. INIT Sentrocdc 1 DPEE 12/14/90 -

l REPCRT MRIH NOVDEER, 1990 (IMPIRIED BY P. Nerdone '

. TE2HDIE f 603) 474-9521

] (Ext. 4074)

! No. Date Typel Duraticn Reason 2 Method of  : Licensee Cause & Corrective Il (Hours) Shutting Event Action to

} Down Reactor 3 Report # Prevent Recurrence i

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1

90-29 11/09/90 F 328.3 A 3 90-25 Autanatic reactor trip m 10-10 steenn Wohn.- level caused by an air stgply failure to feedeter regulating valve l ' VS20 (Si B). 'Ihe air booster relays

{ for all fcur feedwater regulating valves j were relocated to an area with less j' vibraticn.

2 i

. 'Ihe shutdown was prolonged by additional

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repairs required m both pressurizer 10RV's, reactor coolant pump C seal pedage and Train A steem supply valve to EEW ptmp ;, whine.

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DOOTf 10. 50-443 INIT Seabrook'l-IRTE 12/14/90 uAt< Lnyt; MINIDWCB SEP998Y ITR SAFE 1T REIATED EQUI 1FDrr O NPLEIED BY P. Nardone

'RElun KNIH NOVDBER, ' 1990' TETEPfDE -(603) 474-9521 (Ext. 4074)

Page 1 of 1 IRTE SYSrfM ONPONENT MINTDEANCE ACEIGN 11/13/90- Excore 1-NI-NM-6690 Indimtion failed low during power coeration. "

Nuclear Train A 'Repla 3 defective lEVDC power supply.

Instrumentation PAM Nuclear

~

Instrumentation i Channel 4

11/29/90 Rme+rr 1-RC-TP-421B Hi lead imhalmice on TE-421B caused signal Coolant Prote.-tion Set 2 to fluctuate. Renoved RID frte service and Narrow Range tapum ily placed spare RID TE-420B in Cold Leg RID service. Reworked splice at TE-421B and j rei.uusi it to servi .

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{ . DOCKET NO. 50-443 i

UNIT Seabrook 1 IATE 12/14/90 CCMPIETED BY P. Nardone

,-0 TELEPHCNE I603) 474-9521 i

f, '(Ext. 4074)

REFUELIlG INKEMATION REQUEST I

1. Ihne of facility: Seabrook Unit 1 l

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

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

4. Will refueling or resunption of operation thereafter ruguire a technical specification change or other license amendnent?

Unknown at this tine.

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

-information:

Not Applicable

6. Inportant licensing considerations associated with refueling, e.g.,  !

new or different fuel design or supplier, unreviewed design or

.perfoamnce analysis nothods, significant changes in fuel design, new operating procedures:

None 4

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

.(a) In Core: 193 (b) 0

-9. The present licensed spent fuel pool storage capacity and the size of any increase in-licensect storage capecity that has been requested or is planned, in number of fuel ass a blies:

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 assunting the present licensed capacity:

i Licensed. capacity of 1236 fuel assm blies based on sixteen refuelings and full core offload capability.

The current licensed capacity is adequate until at least the year 2010.

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