LOCKING DEVICE OF PLUG FOR VACUUM AUTOMATIC CIRCUIT BREAKER Russian patent published in 2012 - IPC H02B11/133 

FIELD: electricity.

SUBSTANCE: locking device comprises a control panel with a plug to control capacity and a body of an automatic circuit breaker comprising a connector for capacity control for connection with the possibility of plus disconnection for capacity control, leads for voltage and current acceptance, a frame installed on the control panel and comprising leads connected or disconnected with leads of the automatic circuit breaker body, a carriage comprising the automatic circuit breaker body and installed as capable of sliding along the frame, a limiting unit of the carriage, which comprises a link made as capable of displacement up and down along the insertion direction or plug disconnection to control capacity, and a locking plate connected with the link for interaction with it and configured to restrict displacement of the carriage or to remove the restricted position of the carriage as it displaces in the direction perpendicular to the direction of carriage displacement.

EFFECT: prevention of plug disconnection from a connector as a circuit breaker body moves in a working position from a control position or as work is done in a working position, which helps to prevent an accident.

14 cl, 7 dwg