ML13308B445

Forwards Required Data for Facility Re Power Output Summary. Summary of Monthly Operating Experience Encl

ML13308B445
Person / Time
Site:	San Onofre
Issue date:	10/06/1977
From:	Curran J SOUTHERN CALIFORNIA EDISON CO.
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE)
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ML13308B447	List: ML13308B445
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Text

0 LAATORY COPT Southern California Edison Company SAN ONOFRE NUCLEAR GENERATING STATION P.

0.

BOX 128 SAN CLEMENTE, CALIFORNIA 92672 October 6, 1977 Office of Inspection and Enforcement United States Nuclear Regulatory Commission Washington, D. C. 20555 SAN ONOFRE NUCLEAR GENERATING STATION UNIT 1 -

DOCKET NO. 50-206 Gentlemen:

Enclosed is the data required by the Technical Specification Section 6.9.1.c for the San Onofre Nuclear Generating Station Unit 1. Please contact us if we can be of further assistance.

Sincerely, J. M. Curran Plant Manager DRH:sel Enclosures cc:

Director, Region V Office of Inspection and Enforcement 3

0 s-0 X2

ENCLOSURE A PLANT San Onofre DATE October 5, 1977 COMPLETED BY Dan Howard (714) 492-7700 DAILY PLANT POWER OUTPUT MONTH September DAY AVERAGE DAILY MWe-net DAY AVERAGE DAILY MWe-net 1

408 17

-4.5 2

409 18

-2.0 3

411 19

-4.6 4

389 20

-4.6 5

406 21

-1.7 6

402 22

-2.0 7

406 23

-2.7 8

407 24

-4.4 9

349 25

-3.4 10

-6.8 26

-3.1 11

-2.2 27

-2.9 12

-2.6 28

-3.7 13

-2.6 29

-4.5 14

-2.4 30

-4.5 15

-3.3 16

-4.7

PLANT NAME San Onofre Nuc. Gen. Sta.

DATE October 5, 1977 COMPLETED BY Dan Howard (714) 492-7700 OPERATING STATUS

1. REPORTING PERIOD: 0001 770901 TO 2400 770930 GROSS HOURS IN REPORTING PERIOD:

720

2. CURRENTLY AUTHORIZED POWER LEVEL MWt 1347 MWe-NET 436

3. POWER LEVEL TO WHICH RESTRICTED (IF ANY):

None

4. REASONS FOR RESTRICTIONS (IF ANY)

N/A THIS CUMULATIVE MONTH YR-TO-DATE TO DATE

5. HOURS REACTOR-WAS CRITICAL.......

214.3 3584.65 65508.97

6. REACTOR RESERVE SHUTDOWN HOURS.........

o 0

0

7. HOURS GENERATOR ON-LINE...........

. 214.3 3550.39 64403.92

8. UNIT RESERVE SHUTDOWN HOURS.........

0 0

0

9.

GROSS THERMAL POWER GENERATED (MWH).....

274,788 4,624,196 79,886,366

10. GROSS ELECTRICAL POWER GENERATED (MWH)....

90,000 1

27,419,834

11.

NET ELECTRICAL POWER GENERATED (MWH).....

83,634 1,477,035 25,956,806

12.

REACTOR AVAILABILITY FACTOR (1).......

29.76 54.75 76.22

13. PLANT AVAILABILITY FACTOR (2)........

29.76 53.38 72.77

14.

PLANT CAPACITY FACTOR (3)..........

26.60 51.71 70.96

15.

FORCED OUTAGE RATE (4)........

0 2.2 10.21

16. SHUTDOWNS SCHEDULED TO BEGIN IN NEXT 6 MONTHS (STATE TYPE, DATE AND DURATION OF ECH):

Steam Generator Inspections, 15 December, Duration unknown

-17.

IF SHUTDOWN AT END OF REPORT PERIOD, ESTIMATED DATE OF STARTUP:

6 October, 1977

18.

PLANTS IN TEST STATUS (PRIOR TO COMMERCIAL OPERATION) REPORT THE FOLLOWING:

PLANT NAME San Onofre DATE October 5, 1977 COMPLETED BY Dan Howard (714) 492-7700 REPORT MONTH September P LAN T S HUTD O W N S TYPE METHOD OF F-FORCED DURATION SHUTTING DOWN NO.

DATE S-SCHEDULED (HOURS)

REASONS (1) THE REACTOR (2)

COMMENTS 9

9-9-77 S

504.6 B

A Reactor Coolant Pump Inspection and Steam Generator Inspections.

(1) REASON:

(2) METHOD:

A-EQUIPMENT FAILURE (EXPLAIN)

A-MANUAL 8-MAINT. OR TEST B-MANUAL SCRAM C-REFUELING C-AUTOMATIC SCRAM D-REGULATORY RESTRICTION E-OPERATOR TRAINING AND LICENSE EXAMINATION F-ADMINISTRATIVE G-OPERATIONAL ERROR (EXPLAIN)

H-OTHER

~7

ENCLOSURE D PLANT -

San -Onofre DATE October.5, 1977 COMPLETED BY Dan Howard (714) 492-7700

SUMMARY

OF OPERATING EXPERIENCE FOR THE MONTH The unit was taken out of service at 10:20 p.m. on September 9 to conduct eddy-current testing on the steam generators and to inspect a reactor coolant pump. The outage was extended to. allow an expanded eddy current test program after initial testing revealed apparent defect growth.'

The unit remained shutdown for the remainder of the month.