ML20138B243

Monthly Operating Rept for Sept 1985

ML20138B243
Person / Time
Site:	San Onofre
Issue date:	09/30/1985
From:	Morgan H, Siacor E SOUTHERN CALIFORNIA EDISON CO.
To:	NRC OFFICE OF RESOURCE MANAGEMENT (ORM)
References
NUDOCS 8512120248
Download: ML20138B243 (7)

Text

IN NRC MONTHLY OPERATING REPORT DOCKET NO.

50-206 UNIT NAME SONGS - 1 DATE October 11, 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: September 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 6,551.00 160,375.00

12. Number Of Hours Reactor Was Critical 626.42 5,554.06 94,873.44

13. Reactor Reserve Shutdown Hours 0

0 0

14. Hours Generator On-Line 609.78 5,501.05 91,141.92

15. Unit Reserve Shutdown Hours 0

0 0

16. Gross Thermal Energy Generated (MWH) 717,527.70 6,599,045.12 115,786,360.42

17. Gross Electrical Energy Generated-(MWH) 218,400.00 2,125,800.00 39,336.434.00

18. Net Electrical Energy Generated (MWH) 203,533.00 1,995,465.00 37,178,178.00

19. Unit Service Factor 84.69%

83.97%

56.83%

20. Unit Availability Factor 84.69%

83.97%

56.83%

21. Unit Capacity Factor (Using MDC Net) 64.84%

69.86%

53.177.

22. Unit Capacity Factor (Using DER Net) 64.84%

69.86%

53.17%

23. Unit Forced Outage. Rate 13.38%

12.03%

21.21%

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

Refueling, November, 1985, 156-day duratfor.

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

NA

~

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

Forecast Achieved INITIAL CRITICALITY NA NA INITIAL ELECTRICITY NA NA COMMERCIAL OPERATION NA NA 7204u K

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AVERAGE DAILY UNIT POWER LEVEL 4

DOCKET NO.

50-206 UNIT SONGS - 1 1{ -

DATE october 11, 1985 COMPLETED BY E. R. Stacor TELEPHONE (714) 368-6223 MONTH: September 1985 DAY AVERAGE DAILY POWER LEVEL DAY AVERAGE DAILY POWER LEVEL (MWe-Net)-

(MWe-Net) r' 1-60.17 17 376.88 2

258.92 18 380.00 l

3 281.50 19 316.67 4

284~.75 20 0.00 5

291.02 21 0.00 6

295.63-22 0.00 7

331.33 23 0.88 8

365.46 24 280.04 9

372.71 25 333.92

-10

'381.88 26 336.63 11 383.25 27 336.17 12 387.96 28 336.13 13 386.17

.29 343.71 14 302.17 30 379.04 15 379.67 31-NA I

1.

16 378.75

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UNIT SHUTDOWNS'AND POWER REDUCTIONS DOCKET NO. 50-206-UNIT NAME SONGS - 1 REPORT MONTH SEPTEMBER 1985 DATE October ll. 1985 COMPLETED BY E.

R.

Slacor TELEPHONE 17141 368-6223 Method or.

i Shutting _

System Component Cause & Correctivo Down 1

Du ra t ion '

2 3

LER 4

4.

Action to No.

Date 1 Type

,(Hours)

Reason Reactor.

No.

Code Code Prevent Recurrence 90

.850822' S

11.12-

.B 4 ~

NA' BQ SHV.

Continued f rom previously scheduled outage which. began on August 22, 1985.

91.

-850914 S

O'

'B-

,; 5 NA KE P

Reduced power for inspection of north circulating water pump, heat treating the ci rculating water intake tunnel, and perform Turbine Stop Valve testing.

-92 850919 F

99.10'

.B 3

85-014 EC i XFMR Unit tripped due to sudden pressure increase in the Auxi l ia ry T ra n s fo rme r ' B' during addition of nitrogen gas to the transformer. To p revent recurrence the sudden pressure trip relay will be placed in non-automatic during addition or nitrogen to the transformer.

k I

a i

t 2 ,.

3 F-Fo rced Reason:

• 3 4

Method:

IEEE Std. 803-1983 S-Scheduled A-Equipment Failure (Explain) 1-Manual B-Ma intenance or Test ~

2-Manual Sc ra m.

C-Refueling 3-Automatic Scram, e

D-Regula to ry R',striction 4-Continuation f rom E-Operator Training & License Examination Previous Month F-Adai n i st ra t ive 5-Reduction of 20%

G-Ope ra t iona l Error ( Expla in) or Creater in the

. H-Other ( Expla in)

Past' 24 Hours 6-Other ( Expla in) 7204u i

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SUMMARY

OF OPERATING EXPERIENCE FOR THE MONTH v

r

=

DOCKET 50-206 UNIT SONGS - 1 DATE October 11, 1985 COMPLETED BY E. R. Siacor TELEPHONE (714) 368-6223 DATE TIME EVENT September 1

-0001' Unit is in Mode 3, starting up following completion of repairs to HV-853A.

September 1

-0125 Entered Mode 2.

,, September 1

1. 1107 Entered Mode 1.

Unit synchronized to the grid.

September 1 2206 Reactor power is 78%. Turbine load is 294 MWe

^

gross. Turbine load maintained at 294 MWe gross for evaluation of East and West Low Pressure j

Feedwater Heater tube leakage.

September 2 2332 Commenced load increase following return to service of the. West Low Pressure Feedwater Heaters after tube leakage evaluation.

Initiated repairs to East'First Point and Second Point Feedwater Heaters.

September 3 0015 Reactor power is 79%. Turbine load is 300 MWe gross.

September 7 0942 Commenced load increase following completion of repairs to the East Second Point Feedwater Heater.

September 7 1205 Reactor power.is 92%. Turbine load is 384 MWe gross.

September 9 1450 Reactor power is 95%.. Turbine load is 403 MWe gross.

September 14 0800 Commenced !oad reduction for inspection of North Circulating Water Pump, heat treating of, Circulating Water Intake tunnel, and Turbine Stop Valve testing.

]-

September 19

1905, Reactor tripped from 92.5% power due to sudden pressure on Auxiliary Transformer 'B'.

Unit is in Mode 3.

2 September 20:

0726 Commenced preparations to enter Mode 4 due~ to failure of"the steam driven Auxiliary Feedwater Pump Turbine inboard and outboard bearings.

September 20 1447 Entered Mode 4.

i September 22 1630 Entered Mode 3'following completion of repairs to steam driven Auxiliary Feedwater Pump Turbine

. bearings. '

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SUMMARY

OF OPERATING EXPERIENCE FOR THE MONTH (Continued)

DATE TIME EVENT September 23 1441 Entered Mode 2.

' September 23 1450 Reactor is critical.

September 23 1930 Entered Mode 1.

September 23 2211 Unit synchronized to the grid.

September 24 0903 Reactor power is 92.5%.

Turbine load is 350 MWe gross. Turbine load is maintained at 350 MWe gross due to West Second and Third Point Low Pressure Feedwater Heater outage to repair tube leakage.

September 29 1935 Commenced load increase following completion of repairs to the West Second and Third Point Low Pressure Feedwater Heaters.

September 29 2015 Reactor power is S4%. Turbine load is 400 MWe gross.

September 30 2400 Unit is in Mode 1 at 93% reactor power. Turbine load is 405 MWe gross.

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REFUELING INFORMATION DOCKET NO.

50-206 UNIT SONGS - 1 DATE october 11, 1985 COMPLETED BY E. R. Siacor TELEPHONE (714) 368-6223 MONTH:

September 1985 1.

Scheduled date for-next refueling shutdown.

November 1985 2.

Scheduled date for restart following refueling.

4 April 1986 3.

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

No What will these be?

NA 4.

Scheduled date for submitting proposed licensing action and supporting information.

NA-4 5.

Important Licensing considerations associated with refueling, e.g. new or

'different fuel design or supplier, unreviewed design or performance analysis

_ methods, significant changes in fuel design, new operating procedures.

NA 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 7204u f

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Southern Califomia Edison Company SAN ONOFRE NUCLEAR GENERATING STATION P. O. BOX 128 SAN CLEMENTE, CALIFORNIA 92672 H.E. MORGAN TELEPHONE STATION MANAGER (7146368 6241 Director Office of Management Information and Program Control U.S. Nuclear Regulatory Commission Washington, D.C.

20555

Subject:

Docket No. 50-206 Monthly Operating Report for September 1985 San Onofre Nuclear Generating Station, Unit 1 Enclosed is the Monthly Operating Report as required by Section 6.9.1.c 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, u s. m y Enclosures J. B. Martin'(Regional A'ministrator, USNRC Region V) d cc:

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

INP0 Records Center

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