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US 6,445,569 B1Granted
Gas-insulated switchgear
AssigneeMitsubishi Denki Kabushiki Kaisha
InventorsCoichi Shichida, Masahiro Arioka
Life of this patent
Estimating the term…
Abstract
A gas-insulated switchgear provided with a resin mold bushing for supporting and insulating a main circuit conductor from a ground tank is miniaturized. A container portion 3a is formed by opening an end inside of the tank of a resin mold bushing 3 for supporting and insulating an internal conductor 7 from a ground tank 1 where a breaker 2 and a disconnector are accommodated. A blade-supporting conductor 5 of the disconnector for joining the internal conductor 7 and the disconnector is installed in the container portion.
Claims3
A gas-insulated switchgear comprising:
- a ground potential tank in which insulating gas is hermetically enclosed;
- a breaker and a disconnector accommodated in said tank;
- a resin mold bushing for supporting and insulating a main circuit conductor connected with said disconnector from said tank, the resin mold bushing possessing a container portion with an end opened at inside of said tank and being fixedly supported on said tank;
- and
- a blade-supporting conductor being connected with said main circuit conductor insulated and supported by said resin mold bushing, the blade-supporting conductor being installed in said container portion and supporting a disconnector blade of said disconnector.
2 more elements
Dependencies are inferred from the claim text.