ML20114B323

Revised Monthly Operating Rept for May 1992 for SONGS Unit 3,revising Unit Shutdowns & Power Reductions & Operating Status

ML20114B323
Person / Time
Site:	San Onofre
Issue date:	05/31/1992
From:	Farr M SOUTHERN CALIFORNIA EDISON CO.
To:
Shared Package
ML20114B318	List: ML20114B317 ML20114B321 ML20114B323 ML20114B348
References
NUDOCS 9208260076
Download: ML20114B323 (3)

Text

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%- ATTACHMENT A v.

', Revised Unit 3 May 1992 Unit Shutdowns and Power Reductions

(; ' and Revised Unit 3 May and June 1992 Operating Status

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• a UNIl SHUTDOWHS AND POWER REDUCTIONS DOCKET NO: 50-362- .

UNIT NAME:' SONGS - 3 REPORT MONTH: May 1992 DATE: August 15. 1992 ~

+ COMPLETED BY: M. H. Farr TELEPHONE: (714) 368-9787 Method of Shutting Cause & Corrective Du ra tion Down LER System Component Action to Reason 2

Reactor' No. Code' Code 5

Prevent Recurrence No. Date Type' (Hours)

• NA AB BAF Continued from previous month's 66 920424 F 108.98 A 1 octage.

iP TA TFB Resumed turbine balancing from

" 65 920419 5 120.62 B 1 previous month.

101.60 A 3 3-92-003 AB CAP See note below.

67 920515 F This Note: On May 15, at 1006, with Unit 3 at 100's reactor power, RCP P003 tripped on neutral ground overcurrent.

caused a reactor trip signal to be generated. A short circuit failure (f the RCP P003 motor phase "C" surge protection capacitor occurred due to long tera vibration-induced abrasian damage to the mylar plastic insulation withiri the capacitor asscmoly. The surge capacitors for al, four Unit 3 RCPs were replaced with in-kind parts and the surge capacitors for the Unit 2 RCPs will be rer: 1ced during the next outage of sufficient duration. The RCP motor preventative r:nintenance program -ill be modified t;, include an Periodic replacement of the appropriate periodic examination, including testing, of the surge cenac, tors.

capacitors will be required as appropriate.

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• Data corrected since pr evious submittal . .

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• • Line added since pre.'icus sutmittai,

'IEEE Std 505-19S4 j[r 2f-forced Reason: 'tte t h od :

1-Manual 5-Scheduled A-Equipment failure (Explain) tl 2-Marual Scram. 'lEEE Std 803A-1983 d fl-f taintenance or Test C-Refueling 3-Automatic Scram.

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D Regulatory Restriction 4-Continuas,on from p l Previous Month E-Operator Training & ticense Examinatior.

{l S-Reduction in the Average F-Adminis*rative j .! Daily Power level of more

o-Operational Error (Explain) r ,

H-Other (Explain) than 20'. from the previous vay il l 6-Other (Explain) bl mor.may/10 m

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NRC HONTHLY OPERATING REPORT h i DOCKET fiO: 50-362 UNIT NAME: SONGS - 3 O' DATE: Au;ast 15. 1992

'. COMPLETED BY: .M. M. Farr F TELEPHONE: (714j 368-9787 f* OPERATING S MTUS n:

1. Unit Name: _ San Onofre Nuclear Generatino Station. Unit 3 r 2. Reporting Period: May 3 92

3. Licensed Thermal Power (MWt)

3390

-t _4. Nameplate Rating (Gross MWe): 1127

5. Design Electrical Rating (Net tiWe): 1080 l 6. Maximum Dependable Capacity (Gross MWe): 1127 J '

7. Maximum Ocpendable Capacity (Net MWe): 1080 __

8. 'If Changes Occur in Capacity Ratings (items Number 3 lhrougn 7)

1. *ince last Repor;, Give Reasons: NA

9. vower Level To Which Restricted, If Any (Net !!We): NA

10. Rea. ins For Restrictions, li' Any: NA This Month Yr.-to-Date Cumulative

11. Hours In Reporting Period 744.00 3m647.00 71.591.00

12. Number Of Hours Reactor Was Critical 461.40 1.614.71 S4.112.96

13. Reactor Reserve Shutdown liours 0.00 0.00 0.00

. 14. Hours Generator On-Line 412.80 _ l.455.80 521526.81

, 15. Unit Reserve Shutdown Hours 0.00 0.00 0.00

, 16. Grcss Thermal Energy Generated (MWH) L185.9 / 0. 24 4.487.300.86 167.774./25.32

, 17. Gross Electrical Energy Generated (MWH) 3L5463.00 1.478.709.50 56.878.734.50

18. Het Electrical Energy Generated (MWH) 342.771.00 L 3_61636. 07 53a 681.743.36

19. Unit Service factor- 55.4S% 39.92% 73.37%

20. Unit Availability Factor ~

55,48*: 39.92% 73.37%

21. Unit Copacity Factor (Using MDC Net) 42.66% 34.62% 69.434

-22. Unit Capacity Factor (Using DER Net) 42.66% 34.62% _ 69.43'S

23. Unit Forced Outage Rate

• 33.78's

• 19.61%

• 8.12%

n 24. Shutdowns Schedulec Over Next 6 Months (Type, Date, and Duration of Each):

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None

25. If Shutdown At End'Of Report Pericd, Estimated Date of Startup: NA

26. Units in Test Status (Prior To Cornercial Operation): forecast Achieved L INITIAL CRITICALITY- NA NA L ' INITIAL ELECTRICITY NA NA COMMERCIAL 6PERATION NA NA Data corrected since previous submittal.

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