Vacuum switchgear

Details Vacuum switchgear Vacuum switchgear

2006-11-14

2006-11-14

Enad, Elvin (Department: 2832)

High-voltage switches with arc preventing or extinguishing devic

Arc preventing or extinguishing devices

Housing structure

C218S010000, C218S118000

Reexamination Certificate

active

07135652

ABSTRACT:
Disclosed is a vacuum switchgear comprising an electro-conductive outer vacuum container, a plurality of inner container disposed in the outer vacuum container. The inner containers and the outer container are electrically isolated from each other. The outer container is made of stainless steel plate, for example. One of the inner vacuum containers accommodates a ground switch for keeping the circuit open while the switchgear is opened, having a movable electrode connected to an operating mechanism, and a fixed electrode connected to fixed electrode rod. Another inner vacuum container accommodates a function switch capable of having at least one of functions of a circuit breaker, a disconnector and a load switch. A plurality of electrode shields each surrounds the electrodes of the ground switch and of the function switch. The ground switch and the function switch are disposed in separate vacuum inner containers, respectively.

REFERENCES:
patent: 3983345 (1976-09-01), Phillips
patent: 4297553 (1981-10-01), Kawaguchi et al.
patent: 4879441 (1989-11-01), Hamm et al.
patent: 6335502 (2002-01-01), Kikukawa et al.
patent: 6498314 (2002-12-01), Miyo et al.
patent: 2001/0040146 (2001-11-01), Miyo et al.
patent: 2000-268685 (2000-09-01), None

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