Gas-insulated switchgear

A gas-insulated switchgear comprising:

• a circuit breaker that includes first and second branch outlets provided on a side surface of a cylindrical circuit breaker tank, the branch outlets being arranged to be distant from each other in a longitudinal direction of the circuit breaker tank and both branching off to upward;
• a connection bus bar that has one end connected to the first branch outlet and that extends upward;
• a first disconnect switch that is connected to the other end of the connection bus bar and that is arranged coaxially with the first branch outlet;
• a second disconnect switch that is connected to the second branch outlet, that is arranged coaxially with the second branch outlet, and that is arranged at a lower position than a position of the first disconnect switch;
• a line bus bar that is led out from the second disconnect switch in a horizontal direction;
• a main bus bar that is arranged above the second disconnect switch coaxially with the second branch outlet, that is connected to the first disconnect switch, and that extends in the horizontal direction orthogonal to the longitudinal direction of the circuit breaker tank;
• and
• an abutment that is fixed to a top portion of the second disconnect switch and that supports the main bus bar from below.