Patent ID: 7417846

Claim:
A gas-insulated switchgear in which main circuit equipments are accommodated within a tank hermetically filled with an electrically insulating gas, comprising; at least one switchgear module in which a disconnector with a grounding switch and an electrically insulating frame for selectively supporting an interrupter including a vacuum switch tube are disposed in the tank in a vertically stacked relationship, and in which said disconnector and a movable rod of said vacuum switch tube are electrically connected to each other, wherein said tank is provided, at a front face thereof, with an opening portion that is hermetically closed by a mounting plate for selectively mounting thereon the interrupter and the disconnector with the grounding switch and, at the rear face thereof, with an opening portion for selectively mounting therein a bus bar bushing or a cable connecting bushing, and, at the upper or the lower portions thereof, with at least one opening for selectively mounting thereto a spacer for hermetically connecting the tanks.