GAS INSULATED SWITCHGEAR

摘要

A non-linear resistance film including an insulating material and a non-linear resistance material is provided on an inner surface of a grounded tank. The non-linear resistance film is formed to contain a larger amount of the non-linear resistance material on a side of a central conductor than on a side of the grounded tank. Accordingly, a gas insulated switchgear that can suppress partial discharge around metallic foreign matters and also can suppress inflow of charges from the grounded tank to the metallic foreign matters can be provided.

主权项

1. A gas insulated switchgear comprising:
a grounded tank that is filled with an insulating gas; a central conductor that is provided inside the grounded tank and to which a voltage is applied; an insulating support member that is attached to the grounded tank and that supports the central conductor in an insulating manner; and a non-linear resistance part that is provided on an inner surface of the grounded tank on a lower side and that has a non-linear resistance material contained in an insulating material, wherein the non-linear resistance part contains a larger amount of the non-linear resistance material on a central conductor side than on a grounded tank side.