ML13308B456
| ML13308B456 | |
| Person / Time | |
|---|---|
| Site: | San Onofre  |
| Issue date: | 06/24/1977 |
| From: | Ottoson H SOUTHERN CALIFORNIA EDISON CO. |
| To: | NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION V) |
| References | |
| RO-77-08, RO-77-8, NUDOCS 8103050972 | |
| Download: ML13308B456 (1) | |
Text
LER (77-08)
CONTROL -BLOCK:
(PLEASE-PRINT ALL REQUIRED INFORMATION]
1 6
LICENSEE LICENSE EVENT NAME LICENSE NUMBER TYPE TYPE IClc lAIS1 01 S 1
.10 10 1-101 01010101-10 11 41 1 11111 1 7
89 14 15 25 26 30 31 32 REPORT REPORT CATEGORY TYPE' SOURCE DOCKET NUMBER EVENT DATE REPORT DATE CONT I015l0 012 01 6 lI06114 7 1 7 10 j612141717 7
8 57 58 59 60 61 68 69 74 75 80 EVENT DESCRIPTION I During normal operation on June 14, 1977 the DC fuse input fuse 7
8 9 80 M~I I for MOV 850C inverter opened. The power source for MOV 850C transferred to the 7
8 9 80 Eq I backup supply. The redundant power supply was available and the event is not 7
8 9 80
[o
_I repetitive. Corrective actions were to replace all affected parts. (77-08) 7 8 9 80 7
8 9 PRIME 80 SYSTEM CAUSE COMPONENT COMPONENT CODE CODE COMPONENT CODE SUPPUER MANUFACTURER VIOLATION m lE C IE G I E Il E R Al 1
I G10 1810 L
7 8 9 10 11 12 17 43 44 47 48 CAUSE DESCRIPTION IA General Electric 28F5108FC capacitor in capacitor bank C-6 failed resulting 7
89 80 in the failure of an additional capacitor in capacitor bank C-4. All capacitors 7
9 in banks C-6 and C-4 were replaced.
7 89 80 FACILITY
__METHOD OF STATUS
% POWER OTHER STATUS DISCOVERY DISCOVERY DESCRIPTION 1 E j9 NA I Failure of MOV850C inverter alarm 7
B 9
10 12 13 44 45 46 80 FORM OF ACTIVITY COI TENT RELEASED OF RELEASE AMOUNT OF ACTIVITY LOCATION OF RELEASE 712 Lz_
L. J 1 NA NA 7
8 9
10 11 44
-45 80 PERSONNEL EXPOSURES NUMBER TYPE DESCRIPTION 1J lo o LZJ INA I
7 8 9 11 12 13 80 PERSONNEL INJURIES NUMBER DESCRIPTION 14 llololol I NA 7
8 9 11 12 80 OFFSITE CONSEQUENCES 15 1 NA 7
8980 LOSS OR DAMAGE TO FACILITY TYPE DESCRIPTION 7
8 9 10 80 PUBLICITY 17 I NA 7
8 9 80 ADDITIONAL FACTORS 7.8 9 80 19 I I
7.89
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