WITHDRAWAL INTERLOCK DEVICE OF VACUUM CIRCUIT BREAKER

摘要

The present invention relates to a withdrawal interlock device of a vacuum circuit breaker including a switchboard provided with a control power plug (210); a circuit breaker body provided with a control power connector (110) detachably connected to the control power plug; a cradle (300) inserted into the switchboard and a carriage moving within the cradle in a state that the circuit breaker body is mounted thereon, and the withdrawable interlock device may include a link (500) configured to move according to whether the control power plug is attached to or detached from the control power connector; a link connector (600) connected to the link to move in linkage with the movement of the link; a first lever (800) connected to the link connector to rotate by a predetermined angle according to the movement of the link connector; a moving plate (1110) provided in the carriage to move; and a second lever (900) located between the link and the moving plate, and one side of which is located close to the first lever according to the rotation by a predetermined angle to limit the rotation of the first lever or the other side of which pushes the moving plate while at the same time releasing the close location between the one side and the first lever.