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US 5,177,664 AGranted
Gas insulated switchgear
AssigneeHitachi, Ltd.
InventorsKenji Tsuchiya, Minoru Sakaguchi, Hiroshi Suzuyama
Life of this patent
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AssigneeHitachi, Ltd.
InventorsKenji Tsuchiya, Minoru Sakaguchi, Hiroshi Suzuyama
Estimating the term…
The present invention provides a three-phase lumped together gas insulated switchgear, which is small-sized and simply constructed, including main busbar conductors and disconnectors connected to the main busbar conductors. In the gas insulated switchgear, phases of the main busbar conductors are respectively disposed on the vertexes of a triangle. Further, the axes of the disconnectors and disconnector movable side conductors, both of which correspond to three phases, are arranged between one phase of the main busbar conductor and the other two phases of the main busbar conductors so that the axes of the disconnectors for the busbars become parallel with each other. Furthermore, the movable side conductors are connected to the main busbar conductors. Because of the above construction, a circuit breaker and the busbars can be linked within the shortest possible distance to the disconnectors arranged between the circuit breaker and the busbars.
A gas insulated switchgear comprising a plurality of main busbar conductors and a plurality of disconnectors connected to said main busbar conductors, wherein each of said main busbar conductors is respectively arranged on a vertex of a triangle, and one of said disconnectors corresponding to one of three phases is arranged substantially parallel with another of said disconnectors in the same plane as said one of said disconnectors, each of said disconnectors being arranged between one phase of said main busbar conductors of one phase and another two phases of said main busbar conductors of another two phases.
A three-phase gas insulated switchgear comprising a plurality of transmission line side conductors, a first insulating supporter, a second insulating supporter and a plurality of disconnectors connected to said transmission line side conductors, wherein the disconnectors corresponding to three phases are disposed parallel with each other in a same plane, and wherein said disconnectors includes movable side conductors supported by said first insulating supporter arranged on a side of the three-phase gas insulated switchgear substantially perpendicular to axes of said disconnectors, and a side of a fixed contact of said disconnectors is supported by said second insulating supporter arranged on the side where axes of said disconnectors project, and wherein said transmission line side conductors are connected to the movable side conductors of said disconnectors.
Dependencies are inferred from the claim text.