ML20043H526

Monthly Operating Rept for May 1990 for Nine Mile Point, Unit 2.W/900614 Ltr

ML20043H526
Person / Time
Site:	Nine Mile Point
Issue date:	05/31/1990
From:	Saunderson R, Joseph Willis NIAGARA MOHAWK POWER CORP.
To:	NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
References
NMP55598, NUDOCS 9006260062
Download: ML20043H526 (5)

Text

-

.I

• +-

.'- NMP55598 NINE MILE POINT-UNIT t'P O. BOX 63, LYCOMING, NY 130937ELEPHONE (315) 343 2110 June 14, 1990 U.S. Nuclear Regulatory Commission Document and Control Desk Washington, D.C. 20555

SUBJECT:

Operating Statistics & Shu'down-May c 1990 Docket No. 50-410 NINE MILE POINT UNIT 2 Dear Sir Submitted herewith is the Report of Operating Statistics and Shutdown for May 1990 for the Nine Mile Point Nuclear Station Unit 2.

Also included is a narrative report of Opesration Experience for May 1990.

Very truly yours, James L.

General Superintendent JLW/psc Enclocures y xc: Regional Administrator, Region 1 W. A. Cook, Resident Inspector OY

.- 9006260062 900531 "

/,9 0 POR ADOCK 05000410 l R PDC s

,. t

i )

l- -

- . . . , l r .. . ,

.(

0PERATtNC D ATA REPORT 50-410 00CKET NO.

DATg 6/4/90 dp ,

R. SaunderSon I COMPLETED SY TELEhloNE 315-349-2696 ,,

OPERAflNC STATUS (1) Item 21 YTD based N#8e*

l. Unk Name:

N4"" "41" P 4"t Unit 2 -

on YTD NMDC 1077.1

2. Repoeting Permd:

5/1/90 tbru 5/31/90 ,

3323 .

(2) Item 21 cumm not avail;

3. Licened Thermal Power (MWt): 1214

4. Nmnepiste Rating (Cree Mwe ): Cumm NMDC not determined ,

1091

$. Design Electriest Rating (Not MWe),

11 " 4 t

6. Manimum Dependable Caposisy (Cros MWe):

1076 1

7. Masimum Dependable Caposity (Net MWe): .

(

4. If Changes occur in Caposity Ratings (Items Nwnber 311uough 7) Staes Last Report Ciw Reemas:

Items 6 & 7 recalculated monthly when oneentine at ryater thnn nr enun1 en 80% licensed core thermn1 onvr.v_

None -

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

N/A 1

10. Ra'assas For Restrictions.If Amy.

O Yr..to.Dete V. Camulattw This Month '

( .

744 3623 19999

)

!!. Hours in Reporting Period 0"$.9 2492.4 10680.9 '

12. Number Of Hosa: Reestor Was Cntical 0

13. Reactor Reurve shutdown Hours 410.7 2390,2 10019

14. Hours Generosor On.Line 0 0 0 ,

15. Unit Reserve Shutdown Hours 1167987.4 7278343.99 ,74660396.7 '

l&. Cross Thurmal Energy wersted IMwHI 2443267.5 9747242,5 386,0,1 M ,

87. Cross Electrical Energy Generated (MWHI 353977.8 , 2266822.8 9015847.8

15. Net Electrical Energy Generated (MWH) 65.97 53.04 5 5. a',,

19. Unit service Factor 55,2 65.97 53.04

20. Unit Aveitability Factor 44.21 58.09(1) N/A (2)

21. Unit Capacity Factor (Using MDC Neil 57.35 43.75 43.61

22. Unit Capsody FactorIUsing DER Neil 34.03 24.88 ti l. . R

13. Unit Forced Outage Race

24. Shutdowns Scheduled Over Ness a Months iType.Date.and Duration of Esen t-Refuel. 8/17/90, 14 weeks

• 25. If Shut Dawn A End of Report Period. E>timated Dsie of Sisrtup: -

Forrensa Achiesed 26, Units in Test Status (Pnne to Cesenmercial Operationi:

b/23/07 INiilA l. CRITICAL.li ) 8/8/87 .

INI TI41. ELECTMICITY 4/5/88 C0\t\1ERCI Al. Ol't H A TION to/77

.- a--. -- . . . . - . - - - - - - - ,- - .- - - - ,

e.

L-- APPENDIX 3 AVERAGE DAILY UNTT POWER LEVEL

,O DOCKET NO. 50-410  ;

UNIT m2 l DAR 6/a/on p COMPLETED BY R. Satmderson TELEPHONE 315-349-2696

-May 1990 MOM DAY AVERAGE DAILY POWER LEVEL DAY AVERAGE DAILY POWER LEVEL (MWeNet) (MWeNet) g 1061 -27  ;

7 2 106R gg 35 ,j 3 1069 gg -24 4 1042 -22 g

-5 908 q 21 -22 l

M

= 1013 -24 j

_ 22 i 7

1072 -26 g3 i a 1063 24 -26

. , 1054 -26 26 10 1057 -28 gg ,

6 11 1052' Zy -34 12 1058 gs -6 13 Ino 29 Mo 14 937 30 219 15 ~33 184 31 gg. -30 'i I .

INSTRUCTIONS On this form. list the average da0y unit power level in MWe Net for sach day in the reporung month. Compute to the nearest whole megawatt.

V. O th '

ris' -ai6 4'a'">*< " a<'i- 's."'<x's - 4r46i =xi.

used for the net electrical rating of the unit. there may be oc:asions when the daily average power level exceeds the

('-

100% line (or the restricted power tent litiet in such cases. the average daily urut pawer wiput* sheet should be foot'noted to explatn the apparent anomah.

. l.164 ,

7 -

- e 4 '

80 UNIT SHUIDOtfMS AfD FOtfER RESUCTIOf05 DOCEET88f9. i lifGT NA80E MP2 DATE 6/4/90 REPOSit00f8880 May 1.990 CoperLETEs ey R. Saunderson TE8.EfWggE 315-349-2696 i

! 1

. .. s:

N... Iseer

~

g 5_e  ! 2!3 I35 " f*. g Csees & C.wenee.e .

o g? = i5c E. eses p

• • u mw oE al jdig Rer=e

• t' r.,,,wgu m ,

6 i

9003 900514 F 333.3 A 2 9009 LD N/A Reactor manually scrammed from approximately 45% CTP (licensed) in response to rapidly decreasing l condenser vacuum due to a t malfunctioning offgas system as a result of partial loss of Instrument .

Air System (1AS) due to pipe failure ,

caused by stress-corrosion cracking of red brass piping. Removed and ,

replaced the failed pipe, performed .

visual inspection of other piping in.the area, all one and two inch

~

l red brass piping in the area was i also replaced. Review ongoing to ,

determine need for replacement of piping with different material.

l ,

i j i i i  ! 3 4 l F. F. wad Reasan: 90eshed: Enlatit G- Oneseeae6ms I

5. Lt.cJule.t A 1.pseenscw failene tE metaisal Iseen.sg f. F sei .f Dee.

R Meisseesessece ai Test 2 teemaal konse. Esseer f e theewee r Ref.elsag 3- Aeo=es.sioec Lesen. E* esse Repuse ILERS rise gMUREG-88 Itegales.nr Reseeksi.as 4 Delme(Empis6sl 9068I I fircems e Teainiseg a liaesesc I masemisemoluse I A.s 6ees,e6*e 5

Geg me .II.. tl'epissal Ealsibie I-Smesc 5 wou l I ef;7) i'Ilehre"I~arianoI i

) '

V o

t . , .

i .

NIAGARA MOHAWK POWER CORPORATION NINE MILE POINT NUCLEAR STATION UNIT #2 NARRATIVE OF OPERATING EXPERIENCE Nine Mile Point Unit 2 operated with a capacity factor of 44.21% (MDC - net) and an availability factor of 55.2% during the month of May 1990.

On May 14. Operations at Nine Mile Point Unit 2 initiated a manual reactor scram by placing the mode switch in " SHUTDOWN" in response to loss of Main Condenser vacuum due to a malfunctioning offgas system caused by failure of an Instrument Air System (IAS) pipe.

The unit remained shutdown (off-line) until May 28. (Refer to LER 90-09 for details).

There were no challanges to safety relief valves during this reporting period.

I l'

,