WITHDRAWABLE INTERLOCK DEVICE OF VACUUM CIRCUIT BREAKER

摘要

As described above, a withdrawable interlock device of a vacuum circuit breaker according to the present disclosure may locate the second lever between the link and the moving plate, and thus the second lever may be engaged with an outer side of the first lever in a state that the control power connector is coupled to the control power plug not to move the moving plate through the second lever so as to maintain a state that the fitting protrusion is fitted into the fitting groove, thereby having an effect of preventing the circuit breaker body from being separated to the outside of the cradle in a state that the control power connector is coupled to the control power plug to supply power.

主权项

1. A withdrawable interlock device of a vacuum circuit breaker comprising a switchboard provided with a control power plug; a circuit breaker body provided with a control power connector detachably connected to the control power plug; a cradle inserted into the switchboard and a carriage moving within the cradle in a state that the circuit breaker body is mounted thereon, the withdrawable interlock device comprising:
a link configured to move according to whether the control power plug is attached to or detached from the control power connector; a link connector connected to the link to move in linkage with the movement of the link; a first lever connected to the link connector to rotate by a predetermined angle according to the movement of the link connector; a moving plate provided in the carriage to move; and a second lever 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.