ML18081A862

LER 77-045/03L-0:on 770626,during 100% Generator Trip Test, 5024 500-kV Transmission Line Became Inoperable.Caused by Bus Sections 1-5 & 5-6 Breaker Flashover Nhc Iia Relay Remaining Energized.Relay Removed from Svc

ML18081A862
Person / Time
Site:	Salem
Issue date:	07/10/1977
From:	Spencer T Public Service Enterprise Group
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I)
Shared Package
ML18081A856	List: ML18081A855 ML18081A857 ML18081A858 ML18081A859 ML18081A860 ML18081A861 ML18081A862 ML18081A863 ML18081A864 ML18081A865 ML18081A867
References
LER-77-045-03L, LER-77-45-3L, NUDOCS 8001080526
Download: ML18081A862 (1)

Text

....

CONTROL BLOCK

• LICENSEE EVENT REPORT LER 77-45/03L 7/8/77 6

LICENSEE LICENSE EVENT NAME LICENSE NUMBER TYf'E TYPE

@EJ!N1J1s1G1s111 14 10101-10101010101-1010J 1411111111) 15 2 :lcl ~1 10 1~1I REPORT REPORT CATEGORY TYPE SOURCE DOCKET NUMSER EVENT DATE REPORT DATE I011l CON'TLLJ l1J LIJ I 0 I 51 0 I-! 0 I 21 71 2j L9 16 12 16 17 17 I I 0 I 71 11017 ! 7J

~ 57 5a 59 60 61 68 69 74 75 EVENT DESCRIPTION

~ I During conduct of 100% Gen. Trip Test, the 5024, SOOkV Transmission line I 7 8 9 80

@]TI became inoperable due to flashover relay operation. The 5023 line and all 7* B 9

@:E] [ diesel generators were operable. Relay was withdrawn from service to pre:I 7 8 9 ~

~I vent reoccurrence. This is the first occurrence of th:is tyne. (77-L;5/03L)J 7 89 00

[2li]..._~~~~~~~~~~~~~~-'--~~~~~~~~~~~~-~~~--~--'

7 8 9 PRIME SYSTEM CAUSE COMPONENT COMPONENT

• CODE CODE COMPONENT CODE SUPPLIER MANUFACTURER VIOLATIOtl

@EJUWLJ LKJ IZ IZ IZ IZ IZ__uj LbJ I ZI 9 I 9 I 9 I lEJ 7 8 9 10 11 12 17 43 44 47 48 CAUSE DESCRIPTION Mf SEE DESIGNATION OF APPARENT CAUSE IN NAERJ-1/l'IVE.

@m9 7 8~9-------------~--~--~--------~---~--~---~----'oo 7rJ:El8~9--~----------~----------~-~-~~---------~---'e:;

FACILITY ST.'\ T 1..:~ .,. i:-owcR DISCOVERY pESCRIP"TICN CDTI0 LBJ. 11 JO !O I N;A 7 9 10 12 so FORM OF AC.Tl V!TY. CONTENT RELEASED OF RELEASE AMOUNT OF ACTIVITY LOCATION OF RE LEASE 7

G:liJ8 W 9

W10 I'-11------'-----44-',

N/A 45 N/A PERSONNEL EXPOSURES NUMBER TYPE DESCRIPTION G:li)to 7 8 9 101011I lZJ 12 NA

~13,,._.-----"'-'-'-~-~-------~--~---~---~--~--80~-

PERSONNEL INJURIES NUMBER DESCr!IPTION (2I]!Ol0101 1 NA 7 8 9 11 12 80 OFFSITE CONSEQUENCES

~'1>~~~~~~~~~~~-N=-'-'-~A.:.__~~~~~~~~~~~~~~~~~~~~~~~~

LOSS OR DAMAGE TO FACILITY TYPE DESCRIPTION 7~IZIa'g-"'

I~10,.,-------------'-----~---~------~--~---~----d N/A PUBLICITY 7GIBa~g~-~----------.u.r-=---------~---~---~--~---~____,aa ADDITIONAL FACTCRS IT0a~~,--------~--'-----~---------~----~---~------~~

• 1 NAME: _ _ _ _ _ _ _ _T"""'-'.'--""'L'"""---=s_o"--e=-=-n"'"c=e,_,,r.______ PHONE: (609) 365-7000 Ext. Salem 528