High continuous current vacuum-type circuit interrupter

Details High continuous current vacuum-type circuit interrupter High continuous current vacuum-type circuit interrupter

1975-12-29

1978-02-07

Macon, Robert S.

Electricity: circuit makers and breakers

Liquid contact

Time delay

H01H 3366

Patent

active

040728374

ABSTRACT:
A vacuum interrupter having a continuous current rating of several thousand amperes comprises a pair of disc-shaped contacts primarily of beryllium that are respectively mounted on the inner ends of a pair of conductive contact rods. The mounting means for each contact comprises a backing member of truncated, generally-conical form that comprises: (i) a base of a predetermined diameter attached to the inner end of the associated contact rod and (ii) an opposite end of a relatively small diameter compared to that of said base attached to the disc-shaped contact. Each disc-shaped contact projects radially outward past the outer periphery of said opposite end of the associated backing member.

REFERENCES:
patent: 3026394 (1962-03-01), Jennings
patent: 3210505 (1965-10-01), Porter
patent: 3244843 (1966-04-01), Ross
patent: 3924087 (1975-12-01), Clason

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