Surge arrester with rigid insulating housing

Details Surge arrester with rigid insulating housing Surge arrester with rigid insulating housing

1990-02-23

1992-02-11

DeBoer, Todd E.

Electricity: electrical systems and devices

Safety and protection of systems and devices

High voltage dissipation

361117, 338 21, H02H 904

Patent

active

050880012

ABSTRACT:
To control the direction of movement and prevent random scattering of fragments of MOV blocks resulting from the catastrophic failure of such blocks during overvoltage incidents, a stack of such MOV blocks with end fittings attached is placed within a rigid filament-wound epoxy-impregnated tube formed as one continuous tube or a tube made up of aligned tube segments positioned so as to establish a preferred failure direction; the interstices between the interior of such tube and the exterior of said blocks and end fittings are filled with a dielectric insulative material which extends beyond and engulfs said tube and said end fittings to seal and further rigidify said component stack and provide an air-free non-electrically ionizable environment about said component stack.

REFERENCES:
patent: 4404614 (1983-09-01), Koch et al.
patent: 4899248 (1990-02-01), Raudabaugh
patent: 4905118 (1990-02-01), Sakich
patent: 4962440 (1990-10-01), Johnnfelt et al.
patent: 4992906 (1991-02-01), Docne et al.

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