Disconnecting/earthing switch for gas-insulated switchgear
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The present invention operating for a disconnector for movement is connected to the rotating shaft and is fixed to the rotation shaft lever, said lever that rotates integrally with the rotating shaft for transmitting power from the outside and the metal enclosure is gas-filled insulating, the enclosure controller linear for characters, and the earthing switch in which the disconnecting switch is arranged at the opposite of the mover for the fixed contacts for the disconnecting switch that is in contact with the movement of the mover for an isolator, is connected to the lever movement linear done in the direction of movement and the predetermined angle of the mover for the disconnector and a mover and a fixed contact for earthing switch is arranged at the opposite of the mover for the earthing switch is in contact with the movement-party for the earthing switch movable. The present invention is not a separate control device for disconnecting switch and the earthing switch, in the following configuration the three-position disconnector for operating a single operating device (3 POSITION DS), by reducing the moving distance of the movable contacts of the disconnector and earthing switch, full-size can be downsized and manufacturing costs, and to minimize the possibility of foreign matter that may occur in the course of the movable contact of the disconnecting switch and the earthing switch operation, there is an effect that can increase the reliability.