ML13331B187

Monthly Operating Rept for May 1989 for San Onofre Unit 1

ML13331B187
Person / Time
Site:	San Onofre
Issue date:	05/31/1989
From:	Nandy F, Siacor E SOUTHERN CALIFORNIA EDISON CO.
To:	NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
References
NUDOCS 8906200059
Download: ML13331B187 (8)

Text

Southern California Edison Company P. 0.

BOX 800 2244 WALNUT GROVE AVENUE ROSEMEAD, CALIFORNIA 91770 F. R. NANDY TELEPHONE MANAGER OF NUCLEAR LICENSING June 15, 1989 (818) 302-1896 U. S. Nuclear Regulatory Commission Document Control Desk Washington, D.C.

20555

Subject:

Docket No. 50-206 Monthly Operating Report for May 1989 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, Enclosures cc:

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

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

Institute of Nuclear Power Operations (INPO) 8906200059 890531 PDR ADOCK 05000206 R

PDC/

NRC MONTHLY OPERATING REPORT DOCKET NO:

50-206 UNIT NAME:

SONGS - 1 DATE:

COMPLETED BY:

E. R. Siacor TELEPHONE:

(714) 368-6223 OPERATING STATUS

1. Unit Name:

San Onofre Nuclear Generating Station, Unit 1

2. Reporting Period:

May 1989

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 744.00 3,623.00 192,511.00

12. Number Of Hours Reactor Was Critical 130.03 130.03 110,409.22

13. Reactor Reserve Shutdown Hours 0.00 0.00 0.00

14. Hours Generator On-Line 46.12 46.12 106,276.61

15. Unit Reserve Shutdown Hours 0.00 0.00 0.00

16. Gross Thermal Energy Generated (MWH) 8,321.79 8,321.79 133,662,059.54

17. Gross Electrical Energy Generated (MWH) 1,800.00 0.00 45,153,728.42

18. Net Electrical Energy Generated (MWH)

(5,481.00) (13,302.00) 42,582,716.00

19. Unit Service Factor 6.20%

1.27%

55.21%

20. Unit Availability Factor 6.20%

1.27%

55.21%

21. Unit Capacity Factor (Using MDC Net) 0.00%

0.00%

50.73%

22. Unit Capacity Factor (Using DER Net) 0.00%

0.00%

50.73%

23. Unit Forced Outage Rate 72.36%

72.36%

19.57%

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

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

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

Forecast Achieved INITIAL CRITICALITY NA NA INITIAL ELECTRICITY NA NA COMMERCIAL OPERATION NA NA mor.may/2

AVERAGE DAILY UNIT POWER LEVEL DOCKET NO:

50-206 UNIT NAME:

SONGS -

1 DATE:

COMPLETED BY:

E. R. Siacor TELEPHONE:

(714) 368-6223 MONTH:

May 1989 DAY AVERAGE DAILY POWER LEVEL DAY AVERAGE DAILY POWER LEVEL (MWe-Net)

(MWe-Net) 1 0.00 17 0.00 2

0.00 18 0.00 3

0.00 19 0.00 4

0.00 20 0.00 5

0.00 21 0.00 6

0.00 22 0.00 7

0.00 23 0.00 8

0.00 24 0.00 9

0.00 25 13.92 10 0.00 26 17.08 11 0.00 27 0.00 12 0.00 28 0.00 13 0.00 29 0.00 14 0.00 30 0.00 15 0.00 31 0.00 16 0.00 mor.may/3

UNIT SHUTDOWNS AND POWER REDUCTIONS DOCKET NO:

50-206 UNIT NAME:

SONGS - 1 REPORT MONTH:

MAY 1989 DATE:

COMPLETED BY: E. R. Siacor TELEPHONE:

(714) 368-6223 Method of Shutting Cause & Corrective Duration Down LER Syste Compongnt Action to No.

Date Typel (Hours)

Reason 2 Reactor3 No.

Code" Code" Prevent Recurrence 124 881128 S

577.13 C

4 NA NA NA Cycle 10 Refueling Outage.

125 890526 F

120.75 A

1 89-012 BA LI Reactor shutdown initiated from approximately 12-15% power to investigate and repair erroneous Steam Generator level indications due to decalibration of Auxiliary Feedwater wide range (WR) level instrumentation.

Corrective actions are under evaluation.

1F-Forced 2Reason:

3Method:

4IEEE Std 805-1984 S-Scheduled A-Equipment Failure (Explain) 1-Manual B-Maintenance or Test 2-Manual Scram.

C-Refueling 3-Automatic Scram.

D-Regulatory Restriction 4-Continuation from E-Operator Training & License Examination Previous Month F-Administrative 5-Reduction of 20%

IEEE Std 803A G-Operational Error (Explain) or greater in the H-Other (Explain) past 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> 6-Other (Explain) mor.may/4

StRY OF OPERATING EXPERIENCE FORqE MONTH DOCKET NO:

50-206 UNIT NAME:

SONGS - 1 DATE:

COMPLETED BY:

E. R. Siacor TELEPHONE:

(714) 368-6223 Date Time Event May 1 0001 Unit is in Mode 5, day 155 of the Cycle 10 refueling outage.

May 12 2100 Entered Mode 4.

May 13 0333 Entered Mode 3.

May 21 1303 Entered Mode 2.

1329 Reactor made critical.

1342 Commenced low power physics testing.

May 24 1528 Entered Mode 1. Reactor at >5% power.

May 25 0108 Reactor at 15% power. Unit synchronized to the grid at 30 MWe gross turbine load.

0435 Train "A" Auxiliary Feedwater Turbine Driven Pump (AFWTDP) initiated on Steam Generator LI-2400A and LI-2440B low levels.

0529 AFWTDP tripped on low suction pressure. Lowest suction pressure monitored was 10 psig. Train "A" AFW removed from service for investigation.

0727 NRC notified of Train "A" AFW ESF actuation.

1010 Commenced reactor power increase.

1108 Reactor at 18% power. Turbine load at 40 MWe gross. Commenced load reduction to 35 MWe gross due to a sensed low levels on Steam Generators (SGs) A and B.

1110 Train "A" AFW level indication (LI-2400A, B, and C) removed from service for evaluation.

mor.may/5

SUMMARY

OF OPERATING EXPERIENCE FOR THE MONTH DOCKET NO:

50-206 UNIT NAME:

SONGS - 1 DATE:

COMPLETED BY:

E. R. Siacor TELEPHONE:

(714) 368-6223 Date Time Event May 26 0750 Train "A" AFW level indication returned to service following completion of evaluation.

1100 Increased turbine load for data gathering on AFW level indication.

1500 Turbine load reduced to 28 MWe gross following data gathering on AFW level indications.

1928 Increased turbine load for additional AFW level indication data gathering.

2137 Commenced Unit shutdown to Mode 5 following completion of AFW level indications data gathering to initiate trouble shooting and repairs to AFW level indications.

2315 Unit taken off line.

2331 Entered Mode 2.

May 27 0535 Entered Mode 3.

May 28 0209 Entered Mode 4.

0652 Entered Mode 5.

1915 Commenced Reactor Coolant System (RCS) drain down for mid-loop operation.

May 30 0845 RCS at mid-loop.

May 31 2400 Unit is in Mode 5 for the AFW level indication trouble shooting and repair outage.

mor.may/6

REFUELING INFORMATION DOCKET NO:

50-206 UNIT NAME:

SONGS - 1 DATE:

COMPLETED BY:

E. R. Siacor TELEPHONE:

(714) 368-6223 MONTH:

May 1989

1. Scheduled date for next refueling shutdown.

Not yet determined. Under evaluation.

2. Scheduled date for restart following refueling.

Not yet determined. Under Evaluation.

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

Not yet determined. Under evaluation.

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 in fuel design, new operating procedures.

Not yet determined. Under evaluation.

6. The number of fuel assemblies.

a) In the core. 157 b) In the spent fuel storage pool.

59 mor.may/7

REFUELING INFORMATION DOCKET NO:

50-206 UNIT NAME:

SONGS - 1 DATE:

COMPLETED BY:

E. R. Siacor TELEPHONE:

(714) 368-6223 MONTH:

May 1989

7. Licensed spent fuel storage capacity. 216 Intended change in spent fuel storage capacity. Under review

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

12/88, Cycle 10 refueling outage. Trans-shipment program will enable continued operation of Unit 1 beyond 12/88. A total of 139 spent fuel assemblies have been transferred to the Units 2 and 3 spent fuel pools during the Cycle 10 refueling outage. This trans-shipment program will allow the Unit 1 spent fuel storage pool to support the planned Cycle 11 reactor vessel ISI program.

mor.may/8