Patent ID: 7903394

Claim:
A gas-insulated switchgear in which respective metal containers for multiple phases contain multiphase circuit breakers that are arranged in parallel with one another in a direction perpendicular to multiphase main bus bars arranged in parallel with one another and that are arranged overlapping one another as viewed in the axis direction of the multiphase main bus bars, wherein the multiphase main bus bars are arranged between both lead exit portions of each of the multiphase circuit breakers, the gas-insulated switchgear further comprising: bus-bar connecting terminals extending in a vertical direction from one end of the metal containers, respectively, and being one of the lead exit portions of the multiphase circuit breakers; transmission-line connecting terminals extending in a vertical direction from the other end of the metal containers, respectively, and being an other of the lead exit portions for the multiphase circuit breakers; first coupling units which connect the bus-bar connecting terminals to the multiphase main bus bars on a phase to phase basis; and second coupling units which connect the transmission-line connecting terminals to external connection lines on a phase to phase basis, wherein the first coupling units are configured in the same shape in at least two phases and in a different shape in a third phase, and the second coupling units are configured in the same shape in at least two phases.