ML13331B287

Monthly Operating Rept for Aug 1990 for San Onofre Unit 1.W/

ML13331B287
Person / Time
Site:	San Onofre
Issue date:	08/31/1990
From:	Nandy F, Sarette T SOUTHERN CALIFORNIA EDISON CO.
To:	NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
References
NUDOCS 9009270143
Download: ML13331B287 (7)

Text

Southern Calfornia Edison Company 23 PARKER STREET IRVINE, CALIFORNIA 92718 F. R. NANDY September 17, 1990 TELEPHONE MANAGER, NUCLEAR LICENSING (714) 587-5400 U. S. Nuclear Regulatory Commission Document Control Desk Washington, D.C. 20555

Subject:

Docket No. 50-206 Monthly Operating Report for August 1990 San Onofre Nuclear Generating Station, Unit 1 Technical Specification 6.9.1.10 to Provisional Operating License DPR-13 for the San Onofre Nuclear Generating Station, Unit 1, requires SCE provide a Monthly Operating Report which includes: routine operating statistics and shutdown experience; and, all challenges to pressurizer safety and relief valves.

This letter transmits the August 1990 Monthly Operating Report for Unit 1.

There were no challenges to pressurizer safety or relief valves during the reporting period.

If you require any additional information, please let me know.

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)

J. E. Tatum (NRR, SONGS Project Manager)

Institute of Nuclear Power Operations (INPO) 9009270143 900831 P'DR* ADOCK 05000206, R

PDC

NRC MONTHLY OPERATING REPORT DOCKET NO:

50-206 UNIT NAME:

SONGS -

1 DATE:

September 17, 1990 COMPLETED BY: T. M. Sarette TELEPHONE:

(714) 368-9335 OPERATING STATUS

1. Unit Name:

San Onofre Nuclear Generating Station, Unit 1

2. Reporting Period:

August 1990

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 5,831.00 203,479.00

12.

Number Of Hours Reactor Was Critical 0.00 4,162.86 118,024.70

13.

Reactor Reserve Shutdown Hours 0.00 0.00 0.00

14.

Hours Generator On-Line 0.00 4,145.90 113,825.38

15.

Unit Reserve Shutdown Hours 0.00 0.00 0.00

16.

Gross Thermal Energy Generated (MWH) 0.00 5,040,285.33 142,610,132.45

17.

Gross Electrical Energy Generated (MWH) 0.00 1,649,602.86 48,069,931.28

18.

Net Electrical Energy Generated (MWH)

(1,489.00) 1,549,395.00 45,311,815.00

19.

Unit Service Factor 0.00%

71.10%

55.94%

20.

Unit Availability Factor 0.00%

71.10%

55.94%

21.

Unit Capacity Factor (Using MDC Net) 0.00%

60.94%

51.07%

22.

Unit Capacity Factor (Using DER Net) 0.00%

60.94%

51.07%

23.

Unit Forced Outage Rate 0.00%

4.49%

19.35%

24.

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

Reactor thermal shield support replacement and cycle 11 refueling outage commenced on June 30, 1990. Outage duration scheduled for 140 days.

25.

If Shutdown At End Of Report Period, Estimated Date of Startup: November 17,1990

26.

Units In Test Status (Prior To Commercial Operation):

Forecast Achieved INITIAL CRITICALITY NA NA INITIAL ELECTRICITY NA NA COMMERCIAL OPERATION NA NA

AVERAGE DAILY UNIT POWER LEVEL DOCKET NO:

50-206 UNIT NAME:

SONGS - 1 DATE:

September 17, 1990 COMPLETED BY: T. M. Sarette TELEPHONE:

(714) 368-9335 MONTH:

August 1990 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 0.00 10 0.00 26 0.00 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

UNIT SHUTDOWNS AND POWER REDUCTIONS DOCKET NO:

50-206 UNIT NAME:

SONGS - 1 REPORT MONTH:

Auqust 1990 DATE:

September 17, 1990 COMPLETED BY: T. M. Sarette TELEPHONE:

(714) 368-9335 Method of Shutting Cause & Corrective Duration Down LER System Component Action to No.

Date Type1 (Hours) Reason2 Reactor 3 No.

Code 4 Code5 Prevent Recurrence 139 900630 S

744 C,D 4

NA NA NA Reactor thermal shield support replacement and cycle 11 refueling outage.

1F-Forced 2Reason:

3Method:

'IEEE 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)

SUMMARY

OF OPERATING EXPERIENCE FOR THE MONTH DOCKET NO:

50-206 UNIT NAME:

SONGS - 1 DATE:

September 17, 1990 COMPLETED BY:

T. M. Sarette TELEPHONE:

(714) 368-9335 Date Time Event August 1 0001 Unit is defueled, day 33 of the reactor thermal shield repair and Cycle 11 refueling outage.

August 31 2400 Unit is defueled, day 63 of the reactor thermal shield repair and Cycle 11 refueling outage.

REFUELING INFORMATION DOCKET NO:

50-206 UNIT NAME:

SONGS - 1 DATE:

September 17, 1990 COMPLETED BY:

T. M. Sarette TELEPHONE:

(714) 368-9335 MONTH:

August 1990

1. Scheduled date for next refueling shutdown.

The Cycle 11 refueling outage, commenced on June 30, 1990, is currently in progress.

The Cycle 12 refueling outage is forecast to commence in June 1992.

2. Scheduled date for restart following refueling.

Restart from the Cycle 11 refueling outage is forecast for November 17, 1990.

Restart from the Cycle 12 refueling outage is forecast for September 1992.

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

Yes, for Cycle 11 refueling.

Not yet specifically determined for Cycle 12 refueling.

What will these be?

For Cycle 11 refueling:

a) License Amendment Application No. 181, associated with the thermal shield support replacement and monitoring program.

b) License Amendment Application No. 183, associated with removal of the license condition related to the TDI diesel generators.

c) License Amendment Application No. 185, associated with reduced minimum Auxiliary Feedwater Flow resulting from the cavitating venturi resizing.

For Cycle 12 refueling:

Not yet specifically determined. Under evaluation.

REFUELING INFORMATION DOCKET NO:

50-206 UNIT NAME:

SONGS - 1 DATE:

September 17, 1990 COMPLETED BY:

T. M. Sarette TELEPHONE:

(714) 368-9335 MONTH:

August 1990

4. Scheduled date for submitting proposed licensing action and supporting information.

For Cycle 11 refueling outage:

a) License Amendment Application No. 181, thermal shield support replacement and monitoring program, was submitted on April 20, 1990.

b) License Amendment Application No. 183, TDI diesel generator license condition, was submitted on June 5, 1990.

c) License Amendment Application No. 185, auxiliary feedwater system minimum flow requirements, was submitted on July 3, 1990.

For Cycle 12 refueling outage:

Not yet specifically determined. Under evaluation.

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.

For Cycle 11 refueling, none have been identified.

For Cycle 12 refueling, not yet specifically determined. Under evaluation.

6. The number of fuel assemblies.

a) In the core.

0 b) In the spent fuel storage pool.

216

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)