Switch for gas insulated switchgear, and gas insulated switching device
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United States of America Patent
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Oct 22, 2019
Grant Date -
May 3, 2018
app pub date -
Nov 30, 2015
filing date -
Jun 12, 2014
priority date (Note) -
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status (Latency Note)
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Abstract
A switch includes: switch blades for multiple phases which perform three-position switching among ON, OFF, and ground, using a rotation shaft; and phase-to-phase connection mechanisms which support the switch blades for the phases so as to be insulated among the phases and against the ground, and which connect the switch blades for the phases and cause them to cooperate with each other. The phase-to-phase connection mechanisms include fitting couplings made of an insulating material and each composed of a large-diameter endless frame body and a small-diameter endless frame body which are fitted to each other. The fitting couplings are arranged on the same axial line.
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