Patent ID: 6529368
Filing Date: 2003-03-04
Classification: H01H,H02B

Abstract:
A gas-insulated switchgear in which vacuum interrupters are located on vertexes of a triangle with their axes intersecting a triangle at right angles with a first vacuum interrupter on one vertex of a base of the triangle, a second vacuum interrupter on the other vertex of the base, and a third vacuum interrupter on the remaining vertex and accommodated in a hermetically sealed container filled with an insulating gas, and one terminal of said first vacuum interrupter is connected to a first bushing, one terminal of said second vacuum interrupter is connected to a second bushing, and one terminal of said third vacuum interrupter is connected to a third bushing,wherein a distance L between outer peripheries of said first vacuum interrupter and said second vacuum interrupter is established to be smaller than an external diameter D of said vacuum interrupters, and insulating barriers are disposed between said first vacuum interrupter and said second vacuum interrupter, between said first vacuum interrupter and said hermetically sealed container, between said second vacuum interrupter and said hermetically sealed container, and between said first and second vacuum interrupters and said third vacuum interrupter.