Hitachi, Ltd.

Makoto Tazawa

Tooru Tanimizu

Shuichi Kikukawa

Minoru Kanoi

Takuya Miyo

In order to provide a vacuum switch suitable for a distribution and transformation system compatible between structural simplicity and reliability and a vacuum switchgear using the vacuum switch, the vacuum switch comprises switching portions installed in a grounded vacuum container; and a breaker, a grounding switch and an isolator as things having the switching portions, wherein the vacuum container is divided into at least two chambers, and the switching portion of the breaker is disposed in one of the chambers and the switching portions of the grounding switch and the isolator are disposed in the other of the chambers through an insulation body.

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Hitachi, Japan

Makoto Tazawa