ML13331B207

Monthly Operating Rept for Jul 1989 for San Onofre Nuclear Generating Station,Unit 1

ML13331B207
Person / Time
Site:	San Onofre
Issue date:	07/31/1989
From:	Nandy F, Siacor E SOUTHERN CALIFORNIA EDISON CO.
To:	NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
References
NUDOCS 8908230340
Download: ML13331B207 (9)

Text

Southern California Edison Company P. 0. BOX 800 2244 WALNUT GROVE AVENUE ROSEMEAD. CALIFORNIA 91770 F. R. NANDY TELEPHONE MANAGER OF NUCLEAR LICENSING August 14, 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 July 1989 San Onofre Nuclear Generating Station, Unit 1 The purpose of this letter is to provide the Monthly Operating Report 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.

If you require additional information, please advise.

Very truly yours, Enclosures cc:

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

C. W. Caldwell (USNRC Senior Resident Inspector, Units 1, 2 and 3)

Institute of Nuclear Power Operations (INPO) 3908230340 9'07:31 PDR ADOCK 05000206 RPDC'

NRC MONTHLY OPERATING REPORT DOCKET NO:

50-206 UNIT NAME:

SONGS - 1 DATE: August 14, 1989 COMPLETED BY:

E. R. Siacor TELEPHONE:

(714) 368-6223 OPERATING STATUS

1. Unit Name:

San Onofre Nuclear Generating Station, Unit 1

2. Reporting Period:

July 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 5,087.00 193,975.00

12. Number Of Hours Reactor Was Critical 318.50 526.20 110,805.39

13. Reactor Reserve Shutdown Hours 0.00 0.00 0.00

14. Hours Generator On-Line 300.25 413.85 106,644.34

15. Unit Reserve Shutdown Hours 0.00 0.00 0.00

16. Gross Thermal Energy Generated (MWH) 269,845.68 31 133,968,705.43

17. Gross Electrical Energy Generated (MWH) 83,400.00 96,600.00 45,248,528.42

18. Net Electrical Energy Generated (MWH) 73,985.00 67,551.00 42,663,569.00

19. Unit Service Factor 40.36%

8.14%

54.98%

20. Unit Availability Factor 40.36%

8.14%

54.98%

21. Unit Capacity Factor (Using MDC Net) 22.81%

3.05%

50.45%

22. Unit Capacity Factor (Using DER Net) 22.81%

3.05%

50.45%

23. Unit Forced Outage Rate 59.64%

74.62%

20.18%

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

NA

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

NA

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

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

AVERAGE DAILY UNIT POWER LEVR DOCKET NO:

50-206 UNIT NAME:

SONGS - 1 DATE:

August 14, 1989 COMPLETED BY:

E. R. Siacor TELEPHONE:

(714) 368-6223 MONTH: July 1989 DAY AVERAGE DAILY POWER LEVEL DAY AVERAGE DAILY POWER LEVEL (MWe-Net)

(MWe-Net) 1 294.50 17 0.00 2

349.17 18 0.00 3

267.13 19 0.00 4

0.00 20 25.54 5

0.00 21 257.79 6

0.00 22 299.13 7

0.00 23 298.88 8

0.00 24 148.63 9

0.00 25 0.00 10 0.00 26 114.46 11 0.00 27 181.46 12 0.00 28 187.29 13 0.00 29 183.38 14 0.00 30 210.29 15 0.00 31 353.50 16 0.00 mor.jul/3

UNIT SHUTDOWNS AND POWER REDUCTIONS DOCKET NO:

50-206 UNIT NAME:

SONGS - 1 REPORT MONTH: JULY 1989 DATE:

August 14, 1989 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)

Reason2 Reactor3 No.

Code" Code" Prevent Recurrence 126 890703 F

403.82 A

1 NA AB MO Reactor was manually shutdown fr 85% power to investigate/repair RW "A"

motor bearing high temperature alarm. Failure of the upper thrust bearing shim and failure of an ethylene propylene (EPR) tubing used to provide additional insulation for a damaged oil lift hose wrap caused blockage of oil recirculation flow paths. All oil flow paths were cleaned, the shim was replaced and an improved insulating material for the oil lift hoses were installed.

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%

SIEEE Std 803A-1983 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.jul/4

UNIT SHUTDOWNS AND POWER REDUCTIONS DOCKET NO:

50-206 UNIT NAME:

SONGS - 1 REPORT MONTH:

JULY 1989 DATE:

August 14, 1989 COMPLETED BY: E. R. Siacor TELEPHONE:

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

Date Typel (Hours)

Reason 2 Reactor3 No.

Code Code Prevent Recurrence 127 890724 F

39.93 H

2 89-019 SJ FCV Reactor was manually tripped from&.

power due to loss of water invent in steam generator "A". Loss of inventory was caused by closure of feedwater control valve FCV-456 during performance of the monthly surveillance for verifying steam generator high level alarms. The procedure failed to incorporate a design change during the Cycle 10 outage which results in closure of the valve when the high level verification is performed. The procedure will be revised to perform the surveillance for the level alarm during outages only.

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%

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.jul/5

SU RY OF OPERATING EXPERIENCE FOR 9 E MONTH DOCKET NO:

50-206 UNIT NAME:

SONGS - 1 DATE:

August 14, 1989 COMPLETED BY:

E. R. Siacor TELEPHONE:

(714) 368-6223 Date Time Event July 1 0001 Unit is in Mode 1 at 58% reactor power. Turbine load at 225 MWe gross.

0619 Reactor power increased to 70%.

2038 Reactor power increased to 85%.

July 3 1818 Commenced a Unit shutdown due to high RCP "A" motor bearing temperatures.

2005 Unit taken off line.

2012 Entered Mode 2.

2141 Entered Mode 3.

July 4 2138 Entered Mode 4.

July 5 0133 Entered Mode 5 for inspection/repair of RCP "A" motor bearing.

July 18 0600 Entered Mode 4 following completion of RCP "A" motor bearing repairs.

1608 Entered Mode 3.

July 20 0535 Commenced reactor startup.

0615 Entered Mode 2.

0637 Reactor made critical.

1352 Entered Mode 1.

1554 Unit synchronized to the grid.

mor.jul/6

SUMMARY

OF OPERATING EXPERIENCE FOR THE MONTH DOCKET NO:

50-206 UNIT NAME:

SONGS - 1 DATE:

August 14, 1989 COMPLETED BY:

E. R. Siacor TELEPHONE:

(714) 368-6223 Date Time Event July 21 1038 Commenced heat treat of circulating water system.

1238 Completed heat treat of circulating water system.

July 24 1216 Manually tripped reactor due to loss of feedwater inventory in Steam Generator (SG) "A".

Entered Mode 3.

1921 Commenced condenser water box cleaning.

July 25 1945 Commenced reactor startup following completion of investigation for SG "A" loss of feedwater inventory.

2029 Entered Mode 2.

2050 Reactor made critical.

July 26 0158 Entered Mode 1.

0412 Unit synchronized to the grid.

July 27 2054 Commenced circulating water system inspection and cleaning.

July 30 1820 Commenced reactor power increase following completion of condenser water box and circulating water system cleaning.

July 31 0600 Reactor at 85% power.

0950 Reactor at 92% power.

2400 Unit is in Mode 1 at 92% reactor power. Turbine load at 386 MWe gross.

mor.jul/7

REFUELING INFORMATION DOCKET NO:

50-206 UNIT NAME:

SONGS - 1 DATE:

August 14, 1989 COMPLETED BY:

E. R. Siacor TELEPHONE:

(714) 368-6223 MONTH:

July 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.jul/8

REFUELING INFORMATION DOCKET NO:

50-206 UNIT NAME:

SONGS - 1 DATE:

August 14, 1989 COMPLETED BY:

E. R. Siacor TELEPHONE:

(714) 368-6223 MONTH:

July 1989

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.

Approximately 1995 (refueling only)

Approximately 1991 (full off load capability) mor.jul/9