Remotely controllable circuit breaker including bypass...

Details Remotely controllable circuit breaker including bypass... Remotely controllable circuit breaker including bypass...

H - Electricity

01

H

H01H 71/00 (2006.01) H01H 1/54 (2006.01) H01H 71/10 (2006.01) H01H 89/06 (2006.01) H01H 1/58 (2006.01)

Patent

CA 2464165

A remotely controllable circuit breaker includes main contacts, secondary contacts and an arc plate drawing an arc from a fixed main contact when an operating mechanism opens the main contacts. A primary circuit electrically connects the main and secondary contacts between line and load terminals. A solenoid actuator selectively moves the secondary contacts between open and closed states. A magnetic bypass circuit is electrically connected between the arc plate and the load terminal. A movable magnetic armature cooperates with a fixed magnetic armature and is coupled to a movable arm controlled by the actuator. The circuits pass between the magnetic armatures, which respond to short circuit current flowing in the primary circuit and to arcing current flowing in the magnetic bypass circuit, in order to hold the secondary contacts in the closed state during both current conditions.

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