ML20137V609

Monthly Operating Rept for Nov 1985

ML20137V609
Person / Time
Site:	San Onofre
Issue date:	11/30/1985
From:	Morgan H, Siacor E SOUTHERN CALIFORNIA EDISON CO.
To:	NRC OFFICE OF RESOURCE MANAGEMENT (ORM)
References
NUDOCS 8602190636
Download: ML20137V609 (6)

Text

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NRC MONTHLY OPERATING REPORT DOCKET NO.

50-206 UNIT NAME SONGS - 1 DATE December 13, 1985 COMPLETED BY E. R. Siacor TELEPHONE (714) 368-6223 OPERATING STATUS

1. Unit Name: San Onofre Nuclear Generating Station, Unit 1

2. Reporting Period: November 1985

3. Licensed Thermal Power (MWt):

1347

4. Nameplate Rating (Gross MWe):

456

5. Design Electrical Rating (Net MWe):

436

6. Maximum Dependable Capacity (Gross MWe):

456

7. Maximum Dependable Capacity (Net MWe):

436

8. If. Changes Occur In Capacity Ratings (Items Number 3 Through 7)

Since Last Report, Give Reasons:

NA

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

390

10. Reasons For Restrictions, If Any:

Self-imposed power level limit to control steam generator tube corrosion.

This Month Yr.-to-Date Cumulative

11. Hours In Reporting Period 720.00 8,016.00 161,840.00_

12. Number Of Hours Reactor Was Critical 484.85 6,783.91 96,103.29

13. Reactor Reserve Shutdown Hours 0

0 0

14. Hours Generator On-Line 484.85 6,730.90 92,371.77

15. Unit Reserve Shutdown Hours 0

0 0

16. Gross Thermal Energy Generated (MWH) 598,478.87 8,122,911.75 117,310,227.05

17. Gross Electrical Energy Generated (MWH) 194,400.00 2,619,000.00 __39,829,634.00

18. Net Electrical Energy Generated (MWH) 182,795.00 2,459,628.00 37,642,341.00

19. Unit Service Factor 67.34%

83.97%

57.08%

20. Unit Availability Factor 67.34%

83.97%

57.08%

21. Unit Capacity Factor (Using MDC Net) 58.23%

70.38f, 53.35%

22. Unit Capacity Factor (Using DER Net) 58.23%

70.38%

53.35%

23. Unit Forced Outage Rate 29.12%

12.38%

21.12%

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

Six month refueling shutdown initially scheduled for 11/29/85. Actual shutdown 11/21/85 due to forced outage.

25. If Shutdown At End Of Report Period, Estimated Date of Startup:

May 1986

26. Units In Test Status (Prior To Commercial Operation):

Forecast Achieved INITIAL CRITICALITY NA NA INITIAL ELECTRICITY NA NA COMMERCIAL OPERATION NA NA 7596u y

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AVERAGE DAILY UNIT POWER LEVEL DOCKET NO.

50-206 UNIT SONGS - 1 1

1 DATE December 13, 1985 COMPLETED BY E. R. Stacor TELEPHONE (714) 368-6223 MONTH: November 1985 DAY AVERAGE DAILY POWER LEVEL DAY AVERAGE DAILY POWER LEVEL

_(MWe-Net)

(MWe-Net) 1 378.81 17 388.79 2

380.38 18 386.92 3

317.71 19 387.'21 4

380.38 20 374.47 5

386.04 21 33.13 6

386.63 22 0.00 7

385.04 23 0.00 8

385.29 24 0.00 9

384.58 25 0.00 10 -

385.75 26 0.00 11 386.10 27 0.00 12 387.00 28 0.00 13 387.21 29 0.00 14 387.04 30 0.00 15 388.21 31 N/A

- 16 388.96 7596u

o UNIT SHUTDOWNS AND POWER REDUCTIONS DOCKET NO.'30-206

' UNIT NAME SONGS - 1 REPORT MONTH NOVEMBER 1985 DATE DeceNDEn 13, 1985 COMPLETED BY E.

R.

Slacor TELEPHONE (7141 368-6223 Method of Shutting Down

. System Component Cause & Corrective 1

Dura tion 2

3 LER 4

4 Action to No.

Date Type (Hours)

. Reason Reactor No.

Code Code

. Prevent Recurrence '

93 851121 F

199.15 A

1 85-017-EA XFMR The Aux i l ia ry T ra n sfo rme r "C" re l ayed f rom d i f fe rent i a l protection resulting in loss of power to Vi ta l Bus #4 and the reactor was manually tripped. Cause of Auxilia ry Transformer "C" relaying has not been determined, investigation is continuing.

S 36 C

NA NA NA NA Cycle IX Refueling Outage.

1 2

3 4

F-Fo rced Reason:

Method; IEEE Std. 803-1983 S-Scheduled A-Equipment fa ilure (Expla in) 1-Manual B-Ma intenance or Test 2-Manual Sc ram.

C-Refueling 3-Au toma t i c Sc ra m.

D-Regula to ry Restriction 4-Continuation from E-Operator Training & License Examination Previous Month F-Admi n i st ra t ive 5-Reduction of 20%

C-Ope ra t iona l Error (Explain) or Creater in the H-Other (Expla in)

Past 24 Hours 6-Other (Expla in) 7596u O

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SUMMARY

OF OPERATING EXPERIENCE FOR THE MONTH

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DOCKET 50-206 UNIT SONGS - 1 DATE December 13, 1985-COMPLETED BY E. R. Stacor TELEPHONE (714) 368-6223 DATE TIME EVENT November 1 0001 Unit is in Mode 1 at 93.5%' reactor power. Turbine load is 402 MWe gross.

November 20 2100 Commenced load reduction for inspection of South Condenser Water Boxes tube leaks.

November 20 2135 Reactor power is 60%. Turbine load is 254 MWe gross.

November 20 2350 A 100% ground was noted on 4KV Bus 1C and action was initiated to locate and isolate the ground.

November 21 0450 Auxiliary Transformer "C" relayed from differential protection resulting in loss of power to Vital Bus #4.

November 21 0451 The reactor was manually tripped and an orderly plant shutdown was commenced.

November 21 0800 Entered Mode 4.

l November 21 1508 Entered Mode 5.

November 30 2400 Unit is in Mode 5, and is scheduled to remain shutdown until completion of Cycle IX Refueling.

.o REFUELING INFORMATION DOCKET NO.

50-206 UNIT SONGS - 1 DATE December 13, 1985 COMPLETED BY ~E. R. Siacor TELEPHONE (714) 368-6223 MONTH:

November 1985 1.

Scheduled date for next refueling shutdown.

Not yet determined

2. ~ Scheduled date for restart following reft.= ing.

Not yet determined 3.

Will refueling or> resumption of operation thereafter require a Technical Specification change or other license amendment?

Not yet determined What will these be?

Not yet determined 4.

Scheduled date for submitting proposed licensing action and supporting information.

Not yet determined

'5.

Important Licensing considerations associated with refueling, e.g. new or different fuel design or supplier, unreviewed design or performance analysis methods, significant changes i'n fuel design, new operating procedures.

Not yet determined 6.

The number of fuel assemblies.

a)

In the core.

157 b)

In the spent fuel storage pool.

94 7.

Licensed spent fuel storage capacity.

216 Intended change in spent fuel storage capacity.

NONE 8.

Projected date of last refueling that can be discharged to spent fuel storage pool assuming present capacity.

February 1988 7596u

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Southem Califomia Edison Company

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SAN ONOFRE NUCLEAR GENERATING STATION P. O. box 128 SAN CLEMENTE, CAUFORNIA 92672 H.E. MORGAN T E L E P640NE STATON MANAGER (714)368 6249 December 13, 1985 Director Office of Resource Management U.S. Nuclear Regulatory Commission Washington, D.C.

20555

Subject:

Docket No. 50-206 Monthly Operating Report for November 1985 San Onofre Nuclear Generating Station, Unit 1 Enclosed is the Monthly Operating Report as required by Section 6.9.1.10 of Appendix A, Technical Specifications to Provisional Operating License DPR-13 for San Onofre Nuclear Generating Station, Unit 1.

Please contact us if we can be of further assistance.

Sincerely, 4Ekg Enclosures cc:

J. B. Martin (Regional Administrator, USNRC Region V)

F. R. Huey (USNRC Senior Resident Inspector, Units 1, 2 and 3)

INPO Records Center de 9

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