Patent ID: 7075778

Claim:
A hybrid gas-insulated switchgear comprising a plurality of modules, each module being provided with: a cylindrical tank disposed such that an axial direction thereof is substantially horizontal, said tank being filled with an electrically-insulating gas and sealed, a circuit breaker disposed inside said tank such that a direction of an opening and closing operation thereof is substantially aligned with said axial direction of said tank; disconnecting switches disposed at first and second ends of said circuit breaker inside said tank, said disconnecting switches being electrically connected to said circuit breaker; and grounding switches electrically connected between said circuit breaker and said disconnecting switches, wherein said plurality of modules is arranged in a single row such that central axes of said tanks are substantially aligned and said plurality of modules is electrically connected to each other to constitute a single-line diagram unit, wherein: at least one pair of adjacent modules among said plurality of modules is arranged so as to be separately by a distance equivalent to a length of one of said modules.