Hitachi, Ltd.

Makoto Terai

Masato Kobayashi

Ayumu Morita

Toru Tanimizu

Yoshimi Hakamata

Shuichi Kikukawa

Minoru Suzuki

Yozo Shibata

Naoki Nakatsugawa

Katsunori Kojima

Yoshitomo Gotoh

Takuya Okada

There is disclosed a vacuum insulation switch provided with a movable electrode, a stationary electrode and an earthing electrode, which are insulated from each other, in a vacuum container made of a conductive material which is earthed, and a switchgear using the same. Since the vacuum insulation, which is excellent in the insulation ability, is utilized, the switch is drastically miniaturized and the number of constituent parts are reduced, whereby the manufacturing cost of the switch and the switchgear can be decreased.

Vacuum switch and a vacuum switchgear using the same

A vacuum insulation switch provided with a movable electrode, a stationary electrode and an earthing electrode, which are insulated from each other, in a vacuum container made of a conductive material which is earthed, and a switchgear using the same.

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Hitachi, Japan

Makoto Terai