Vacuum interrupter

Details Vacuum interrupter Vacuum interrupter

1986-05-21

1987-04-28

Macon, Robert S.

Electricity: circuit makers and breakers

Liquid contact

Time delay

H01H 3366

Patent

active

046616667

ABSTRACT:
An inventive vacuum interrupter exhibits a high interruption performance. The interrupter includes a metal end plate constituting part of its vacuum envelope, and a coil disposed outside the vacuum envelope and near the metal end plate and generating an axial magnetic field parallel to a path of an arc in an arcing gap between a pair of separable contact within the vacuum envelope. The contact near the coil is made of a material superior in interruption performance to the end plate and is mounted with a clearance onto the end plate. The clearance is at least 2 mm and at most 30% of the diameter of the coil-side contact.

REFERENCES:
patent: 3946179 (1976-03-01), Murano et al.
patent: 4109123 (1978-08-01), Lipperts
patent: 4115672 (1978-09-01), Lipperts

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