Circuit breaker movement system with over-travel protection

摘要

A mechanism is provided for moving a circuit breaker 12 with respect to a circuit breaker connecting apparatus 14 so as to connect or disconnect the circuit breaker from the circuit breaker connecting apparatus. The mechanism includes a draw bracket assembly 29 having a draw bracket 30 constructed and arranged to be mounted to the circuit breaker connecting apparatus 14 so as to be generally adjacent to a side of the circuit breaker connecting apparatus. A guide engaging member 36 is mounted for generally vertical movement with respect to the draw bracket 30. The guide engaging member 30 has a slot structure 42 therein having surfaces constructed and arranged to receive and engage a guide 26 associated with the circuit breaker 12 for moving the circuit breaker with respect to the circuit breaker connecting apparatus 14. A drive member 55 is provided and has a movable element 56. The drive member 55 is constructed and arranged to be actuated so as to cause movement of the movable element 56. A motion transmitting structure 54 is operatively associated with the movable member 56 and the guide engaging member 30 such that movement of the movable element 56 causes the motion transmitting structure 54 to move thereby causing the guide engaging member 30 to move between an operational range of motion to engage or disengage the circuit breaker 12 from the circuit breaker connecting apparatus 14. The movable element 56 is constructed and arranged to disengage from the drive member 55 or disengage from the motion transmitting structure 54 outside of the operational range of motion. <IMAGE>