05000272/LER-1980-014-03, /03L-0:on 800303,ground Developed on Power Supply Line to Unit 3,resulting in Loss of Station Power Transformer 12.Power Supply Line Replaced & Transformer re-energized

/03L-0:on 800303,ground Developed on Power Supply Line to Unit 3,resulting in Loss of Station Power Transformer 12.Power Supply Line Replaced & Transformer re-energized

ML18081B311
Person / Time
Site:	Salem
Issue date:	03/31/1980
From:	Murphy M Public Service Enterprise Group
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I)
Shared Package
ML18081B310	List: 05000272/LER-1980-014, Forwards LER 80-014/03L-0 05000272/LER-1980-014-03, /03L-0:on 800303,ground Developed on Power Supply Line to Unit 3,resulting in Loss of Station Power Transformer 12.Power Supply Line Replaced & Transformer re-energized
References
LER-80-014-03L, LER-80-14-3L, NUDOCS 8004040324
Download: ML18081B311 (1)

LER-1980-014, /03L-0:on 800303,ground Developed on Power Supply Line to Unit 3,resulting in Loss of Station Power Transformer 12.Power Supply Line Replaced & Transformer re-energized

Event date:
Report date:
2721980014R03 - NRC Website

text

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(PLEASE PRINT OR TYPE ALL REQUIRED INFORMATION)

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I At--2-227 hours, a ground developed on a power supply line to #3 Unit.

[£]IJ 1As ~result, the 2T60 breaker opened de-energizing #2 Station Power

~

jTransformer.

With the #2-3 and #5-6 13 kV Breakers normally open, when

(())] t #4-5 and #3-4 13 kV Breakers opened, #12 Station Power Transformer was

[§JI] Ide-energized.

Upon loss of #12 Station Power Transformer, entered r:£I::D I Action Statement ~_._8_._l_._l_(~a~)'--.---------------------~-~

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SYSTEM CODE IE I Bl@

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REPORT I 8 I 0 I NUMBER 21 22 ACTION FUTURE TAKEN ACTION EFFECT ON PLANT

CAUSE

CAUSE COM~

VALVE SUBCODE CODE SUBCODE COMPONENT CODE SUBCODE w@ ~@ 1 EIL IE 1c 1 01 NI@ ~ ~@

11 l==J 23 SHUTDOWN METHOD 12 13 18 19 20 SEQUENTIAL OCCURRENCE REPORT REPORT NO.

CODE TYPE 1011141 1......-1 IOl3!

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ATIACHMENT NPRD-4 31 PRIME COMP.

SUPPL! ER REVISION NC.

L£J 32 COMPONENT MANUFACTURER HOURS ~ SUBMITTED FORM ::.UB.

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CAUSE DESCRIPTION AND CORRECTIVE ACTIONS @

43 44 47 IA ground developed on an underground power supply line to #3 unit QIIJ 1resulting in a loss of #12 Station Power Transformer.

[I))] I line was replaced and the transformer re-energized.

The power supply r.I.TIJ 7

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FACILITY f:3Q\\

STATUS

% POWER OTHER STATUS ~

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10 12 1'3 ACTIVITY CONTENT

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RELEASED OF RELEASE AMOUNT OF ACTIVITY~

[QI] UJ@ W@I N/A 7

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45 46 80 44 45 LOCATION OF RELEASE@

N/A 44 80 PERSONNEL EXPOSURES

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NUMBER A

TYPE DESCRIPTION~

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9 11 12 13 80 PERSONNEL INJURIES

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NUMBER DESCRIPTION~

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8 9

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TYPE

DESCRIPTION

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7 8

9 10 80 PUBLICITY C\\

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