Sealed relay device

Details Sealed relay device Sealed relay device

1994-03-04

1996-05-21

Donovan, Lincoln

Electricity: magnetically operated switches, magnets, and electr

Electromagnetically actuated switches

Vacuum or hermetically sealed type

335126, 218123, 218125, H01H 716

Patent

active

055193706

ABSTRACT:
A sealed relay of the high-vacuum type, or which may be backfilled with a dielectric gas such as hydrogen-nitrogen mixture for improved arc suppression when switching high-voltage d-c currents. The relay uses controlled fixed contacts which enable use of a reduced-diameter disk-shaped movable contact. Thus permitting optimal placement of external arc-supporting permanent magnets on a ceramic relay housing in close proximity to the enclosed fixed and movable contacts. A staggered or offset positioning of the fixed contacts makes the relay polarity insensitive for bidirectional switching of high-voltage d-c currents.

REFERENCES:
patent: Re29174 (1977-04-01), DeLucia
patent: 3697907 (1972-10-01), DeLucia

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