Gas-insulated switchgear

A gas-insulated switchgear which includes a circuit breaker laterally arranged in a longitudinal direction and fixed to a frame, comprising:

• a fixed contact;
• a movable contact brought into contact and away with respect to the fixed contact;
• a sealed tank including the fixed contact and the movable contact inside and filled with insulating gas;
• an operating mechanism using an elastic body as a driving source to drive the movable contact;
• and
• a mechanical section connecting the operating mechanism and the movable contact, wherein a current transformer is connected to a conductor pullout part of the movable contact in the sealed tank,
• a connecting conductor is connected to an upper part of the current transformer,
• a main bus is connected, substantially orthogonally to an axial direction of the circuit breaker via a disconnector, to both ends of the connecting conductor,
• one end of another current transformer is connected to the conductor pullout part of the fixed contact in the sealed tank,
• the other end of the current transformer is connected to a power-transmission line via a disconnector,
• breaker section-side working space and operating mechanism-side working space are provided respectively above the sealed tank and the operating mechanism, with a current transformer provided in the conductor pullout part of the movable contact therebetween, and
• a breaker section-side working hole is provided in an upper surface of the sealed tank,
• wherein a removable connecting member is provided in the mechanical section, and
• an operating mechanism-side working hole is provided, accessibly to the connecting member from the operating mechanism-side working space.