Vacuum interrupter

Details Vacuum interrupter Vacuum interrupter

1982-11-15

1985-02-12

Macon, Robert S.

Electricity: circuit makers and breakers

Liquid contact

Time delay

H01H 3366

Patent

active

044993498

ABSTRACT:
A vacuum interrupter has a hollow metallic cylinder, insulating end plates made of inorganic insulating material and connected to the opposite ends of the metallic cylinder, stationary and movable lead rods which extend into the metallic cylinder through the insulating end plates and which support separable electrical contacts, a bellows connecting the movable lead rod to the corresponding insulating end plate, and auxiliary sealing members which connect the metallic cylinder to both the insulating end plates by means of brazing. At least one of each pair of members to be brazed has a groove for solid brazing material which is closed from the vacuum chamber of the interrupter. The vacuum interrupter facilitates arrangement of the solid brazing material in a temporary assembly step and greatly reduces the amount of vaporized brazing material dispersed into the vacuum chamber of the interrupter in a vacuum brazing step. Thus, the interrupter is provided with improved dielectric strength.

REFERENCES:
patent: 4414448 (1983-11-01), Kashimoto et al.
patent: 4417110 (1983-11-01), Yanagisawa et al.

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