GAS INSULATION SWITCHGEAR

PROBLEM TO BE SOLVED: To materialize a device with a small installation space small and excellent in economical efficiency by arranging a disconnector on motor side and a disconnector on generator side side by side on a straight line orthogonal to a straight line which connects the two connectors. SOLUTION: In a three-phase bus 21, a branch extending in parallel with the line of bushings 2a-2c, and the three-phase bus 21 is connected therein. A disconnector 3 on motor side is connected perpendicularly to the line of the bushings 2a-2c to the the three-phase bus 31. At this point, a disconnector 3 on motor side and a disconnector 4 on generator side are arranged side by side on the same straight line orthogonal to the straight line connecting the tow sets of bushings. Furthermore, three-phase buses 32 and 22 are connected perpendicularly to the line of the bushings 1a-1c to the disconnector 3 on motor side and the disconnector 4 on generator side. Moreover, the three-phase bus 22 is connected to a middle phase 1b out of bushings 1a-1c on line side. What is more, both the two sets of disconnector 3 and 4 are constituted of three-phase collective type of horizontal disconnector.