ML20137B025

Monthly Operating Rept for Dec 1985

ML20137B025
Person / Time
Site:	Nine Mile Point
Issue date:	12/31/1985
From:	Lempges T, Roman T NIAGARA MOHAWK POWER CORP.
To:	NRC OFFICE OF ADMINISTRATION (ADM), NRC OFFICE OF INSPECTION & ENFORCEMENT (IE)
References
NMP-15651, NUDOCS 8601150026
Download: ML20137B025 (5)

Text

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NIAGARA b10 HAWK POWER CORPORATION NINE MILE POINT NUCLEAR STATION UNIT #1 NARRATIVE OF OPERATING EXPERIENCE The station operated during the month of December 1985 with a Unit t

Availability Factor of 95.4% and a Net Design Electrical Capacity Factor of 85.4.

There were no challenge to the Electromatic Relief Valves. Reduc-tions in Capacity Factor were due to a malfunction of the RBCLC temperature control valve resulting in a manual shutdown. Start up was prolonged as a result of a computer outage which resulted in the inability to monitor core thermal parameters thus delaying power increases. Control rod 30-15 was inserted to 00 due to the scram inlet valve leaking. Also, power reductions due to rod pulls. (all rods out) and circulating water intake tunnel icing added to the reduction in the Plant Capacity Factor.

CLASS I WORK - MECHANICAL MAINTENANCE - DECEMBER 1985 WR# 32158 Cont spray pump #121 - rebuild pump (installed rebuilt pump)

WR# 36311 Sys.96-103 diesel' gen. starting air, #2 compressor, copper tubing between HP head and crankcase leaking air (replaced old fittings, tubing and adjusted pilot valve)

WR# 36338 Sys. 44 10-43 CRD repair #111 valve (rebuilt #111 valve, replaced 0-rings and packing)

WR# 36079 Sys. 70 #13 RBCLC Hx open and check for tube leaks (cleaned tubes and checked for tube leaks plugged 2 (two) tubes)

CLASS I WORK - ELECTRICAL MAINTENANCE - DECEMBER 1985 WR# 32158 080-03, Containment Spray Pump 121 (disconnect pump motor for mechanical maintenance)

CLASS I WORK - INSTRUMENTATION f, CONTROL - DECEMBER 1985 WR# 36301 Containment Spray Raw Water Pump #122 strainer AP alarm checked for binding and recalibrated WR# 36312 Rx. Building Closed Loop Cooling Temperature control valves replaced worn components and recalibrated positioner WR# 36316

1. 12 Nitrogen storage tank IcVel transmitter sensing damaged lines replaced with armored' tube WR# ~ 35232

1. 11 Control Room Ventilation Radiation monitor installed signal shield wiring grounds for elimination of spurious electrical interference 8601150026 851231 PINT AEK)CK 05<>>0220

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• er OPERATING DATA REPORT

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DOCKET NO. 50,

DATE 1/8/86 COMPLETED BY TW Rruraa TELEPHONE rU O m -242 j

j OPERATING STATUS

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1. Unit Name:

Nine Mile Point Unit I Notes 2.' Reporting h 12/1/85 thru'12/31/85 1850

. 3. I M Thermal Power (MWt):

640

4. Namepiste Rating (Gross MWe):

620

~ 5. Denen Electrical Rating (Net MWe):

630

6. Maximuan C. ' " Capacity (Gross MWe):

610

7. Maximum Dependable Capacity (Net MWe):

8. If Changes Occ'ar,in Capacity Ratings (Items Number 3 Through 7) Since Last Report. G'm Reasons:

a f

9. Power Level To Which Restricted. lf Any (Net MWe):

10. Reasons For Restrictions,if Any:

This Month Yr..to-Date Cumulative i1. Hours in Reporting Period 744.0 8.760.0 142,825.2

12. Number Of Hours Reactor Was Critical 719.1 8.523.9 101,239.6

13. Reactor Reserve Shutdown Hours s0.0 0.0 1,204.2'

14. Hours Generator On-Line 710.0 8,457.3 98,262.6

15. Unit Reserve Shutdown Hours 0.0 0.0 20.4

16. Gross Thermal Energy Generated (MWH) 1,213,769.0 15,206,308.0 164,495,758.0

17. Gross Electrical Energy Generated (MWH) 4 07. 92 5,.D, 5,088,667.0 54,469,455.0 18.~ Net Electrical Energy Generated (MWH)-

393.777.0 4,932,333.0 52.762,327.0 95.4 96.5 68.8

19. Unit Semce Factor

20. Unit Availability Factor 95d 96.5 68.8

21. Unit Capacity Factor (Using MDC Net) 80.8 92.3 60.6-

22. Unit Capacity Factor (Using DER Net) 85.4 90.8 59.6 13; Unit Forced Outage Rate 4.6 3.5 15.5

24. Shutdowns Scheduled Over Next 6 Months (Ty'pe. Date, and Duration of Each):

~

1 Refuel Outage scheduled tor March 1986, Duration:,14 weeks 25.; If Shut Down At End Of Report Period. Estimated Date of Startup:

2rc. Units in Test Status (Prior to Commercial Operation):'

Forecast Achieved

-y INITlAL CRITICALITY INITIAL ELECTRICITY di COMMERCIAL OPERATION

,j (4/77) g;,... _7

+

AVER ACE D ALLY UNIT POhER LEVEL DOCKET NO. 5,0-220 UNIT Nino Mile Pt.1 DATE. 1/8/86 CO\\fPLETED BY TW Roman i

TELEPflONE _(315)349-2422 SIONTH December 1985 DAY AVERAGE DAILY POWER LEVEL DAY AVER AGE DAILY POWER LEVEL IMWe Net)

(MWe-Net 1 I

601' 17 576 2

598 18 569 3

596 19 566 4

591-

-20 561 5

587 558 21 6

583 556 7-581 23 552 8

580 24 538 ~

9 578 25 549 10 574

.26 546 11 333 2;

539 12 0

23 518

.13 454 29 534

'14 476 e

30 533 15 484 33 530 16 570 INSTRUCTIONS.

On this format.hst the average dady unit power leselin MWe. Net for exh day in the rep.inting in. nth. C.iinpu the nearest whole r:egswsrt.

er -

(9177 r

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DOCKETNO. 50-220 UNIT SHUTDOWNS AND POWER REDUCTIONS UNIT NAME Nine Mile Pt.1 DATE 1/6/86 ( ~)

47 9

COMPLETED BY TW Dn=wV4C REPORT MONTH ~ December 1985 TELEPHONE (315)349-2#22 "L

.! e h

I Licensec b*L Cause & Corrective N,"-

I)J'c i

5E

.E s 5 Event uT Action to H

$E 5

jgg ReporI

• v50 y'

Prevent Recurrence d

851211 F

34.0 A

1 liigh drywell pressure spike due to.

failure of Reactor Building Close Loop Cooling (RBCLC) temperature

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control valve 1

I 2

3 4

F: Forced Reason:

Method:

Exhibit G Instructions S: Schedu!cti A Eiguipnwn: Failure (Explain) 1-Manual for Preparation of Data B Maintenance of Test 2 Manual Scram.

Entry Sheets for Licensee C. Refueling

3. Automatic Scram.

Event Report (LER) File (NUREG.

D-Regulatory Restriction 4 Other (Explain) 0161)

E-Operate..r Training & License Examination F-Administrative 5

4 G-Operat!unal Error (Explain)

Exhibit 1 Sanw Simree 19/77)

Il4)ther (Explain)

.e NMP-15651 NIAGARA MOH AWK POWER CORPORATION 7

NIAGARA MOHAWK 300 ERIE BoutEVARO WEST SY RACUS E, N. Y.132 02 vce siormt na mAton January 10, 1986 Director Office of Inspection and Enforcement U.S. Nuclear Regulatory Commission Washington, DC 20555 Attn:

Document and Control Desk Re: Docket No. 50-220 DPR-63

Dear Sir:

Submitted herewith is the Report of Operating Statistics and shutdown for December 1985 for the Nine Mile Point Nuclear Station Unit #1.

Also included is a narrative report of Operating Experience for December 1985.

Very truly yours, 6

ff Im d b Thomas E. Lempges Vice President Nuclear Generation TEL/tg Attachments cc: Director, Office of ISE (10 copies) 6*,\\,