ML13331B303

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

ML13331B303
Person / Time
Site:	San Onofre
Issue date:	12/31/1990
From:	Nandy F, Vittum S SOUTHERN CALIFORNIA EDISON CO.
To:	NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
References
NUDOCS 9101230267
Download: ML13331B303 (8)

Text

Southern California Edison Company 23 PARKER STREET IRVINE, CALIFORNIA 92718 F. R. NANDY January 14, 1991 TELEPHONE MANAGER, NUCLEAR LICENSING (714) 454-4504 U. S. Nuclear Regulatory Commission Document Control Desk Washington, D.C.

20555

Subject:

Docket No. 50-206 Monthly Operating Report for December 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 December 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)

G. Kalman (NRR, SONGS Project Manager)

Institute of Nuclear Power Operations (INPO) 9 101230267 901231 PDR ADOCK 05000206 R

PDR

0 NRC MONTHLY OPERATING REPORT DOCKET NO:

50-206 UNIT NAME: SONGS -

1 DATE:

1-14-91 COMPLETED BY: S. L. Vittum TELEPHONE:

(714) 368-9230 OPERATING STATUS

1. Unit Name:

San Onofre Nuclear Generating Station, Unit 1

2. Reporting Period:

December 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 8,760.00 201,621.00

12.

Number Of Hours Reactor Was Critical 0.00 4,162.86 116,166.70

13.

Reactor Reserve Shutdown Hours 0.00 0.00 0.00

14.

Hours Generator On-Line 0.00 4,145.90 112,356.38

15.

Unit Reserve Shutdown Hours 0.00 0.00 0.00

16.

Gross Thermal Energy Generated (MWH) 0.00 5,040,285.33 141.439,501.61

17.

Gross Electrical Energy Generated (MWH) 0.00 1.649.602.86 47,675,344.00

18.

Net Electrical Energy Generated (MWH)

(1,556.00) 1,544,517.00 44,993,646.00

19.

Unit Service Factor 0.00%

47.33%

55.73%

20.

Unit Availability Factor 0.00%

47.33%

55.73%

21.

Unit Capacity Factor (Using MDC Net) 0.00%

40.44%

51.18%

22.

Unit Capacity Factor (Using DER Net) 0.00%

40.44%

51.18%

23.

Unit Forced Outage Rate 0.00%

4.49%

19.55%

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 243 days.

25.

If Shutdown At End Of Report Period, Estimated Date of Startup:February 28,1991

26.

Units In Test Status (Prior To Commercial Operation):

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

AVERAGE DAILY UNIT POWER LEVEL DOCKET NO: 50-206 UNIT NAME: SONGS - 1 DATE:

1-14-91 COMPLETED BY: S. L. Vittum TELEPHONE:

(714) 368-9230 MONTH: December 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 mor.dec/3

UNIT SHUTDOWNS AND POWER REDUCTIONS DOCKET NO:

50-206 UNIT NAME:

SONGS - 1 REPORT MONTH:

December 1990 DATE:

1-14-91 COMPLETED BY: S. L. Vittum TELEPHONE:

(714) 368-9230 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

?

900630 S

744 C,D 4

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

0

'F-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.dec/4

SUMMARY

OF OPERATING EXPERIENCE FOR THE MONTH DOCKET NO:

50-206 UNIT NAME: SONGS - 1 DATE:

1-14-91 COMPLETED BY: S. L. Vittum TELEPHONE:

(714) 368-9230 Date Time Event December 1

0001 Unit is defueled, day 156 of the reactor thermal shield repair and Cycle 11 refueling outage.

December 31 2400 Unit is defueled, day 187 of the reactor thermal shield repair and Cycle 11 refueling outage.

mor.dec/5

REFUELING INFORMATION DOCKET NO:

50-206 UNIT NAME:

SONGS -

1 DATE:

1-14-91 COMPLETED BY:

S. L. Vittum TELEPHONE:

(714) 368-9230 MONTH:

December 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 September 1992.

2. Scheduled date for restart following refueling.

Restart from the Cycle 11 refueling outage is forecast for February 28, 1991.

Restart from the Cycle 12 refueling outage is forecast for February 1993.

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.

This application was approved as Amendment 140 by the NRC on December 19, 1990.

b) License Amendment Application No. 189, to resolve single failure susceptibilities of the 4160 volt electrical distribution system and the Safeguards Load Sequencing System (SLSS).

mor.dec/6

0 0

c)

License Amendment Application No. 190, to revise the Provisional Operating License to allow a schedular extension for Items 5 and 18 of the Cycle 11 Full Term Operating License (FTOL) Projects.

This application was approved as Amendment 141 by the NRC on December 28, 1990.

d)

License Amendment Application No. 191, to revise the Technical Specification Table 4.1.2 to reflect changes to the Volume Control and Charging System resulting from the addition of MOV-1100E, was submitted on December 12, 1990.

For Cycle 12 refueling:

Not yet specifically determined. Under evaluation.

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.

This application was approved by the NRC as Amendment 140 on December 19, 1990.

b) License Amendment Application No. 189, to resolve single failure susceptibilities of the 4160 volt electrical distribution system and the SLSS, was submitted on September 28, 1990.

c) License Amendment Application No. 190, to revise the Provisional Operating License to allow a schedular extension for Items 5 and 18 of the Cycle 11 Full Term Operating License (FTOL) Projects, was submitted on November 7, 1990.

This application was approved as Amendment 141 by the NRC on December 28, 1990.

d) License Amendment Application No. 191, to revise the Technical Specification Table 4.1.2 to reflect changes to the Volume Control and Charging System resulting from the addition of MOV-1100E, was submitted on December 12, 1990.

For Cycle 12 refueling outage:

Not yet specifically determined. Under evaluation.

mor.dec/7

REFUELING INFORMATION DOCKET NO:

50-206 UNIT NAME:

SONGS -

1 DATE:

1-14-91 COMPLETED BY:

S. L. Vittum TELEPHONE:

(714) 368-9230 MONTH:

December 1990

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) mor.dec/8