ELECTRICAL SWITCHGEAR UNIT EQUIPPED WITH A MOTORIZED CONTROLAND PROCESS FOR OPERATING SUCH A SWITCHGEAR UNIT

摘要

A circuit breaker is equipped with a motorized control 26 acting on an operating member 18 oscillating between a loaded position and a closed position, passing via a closing dead point position. When the unit is open or reset by means of the motorized control, the operating member 18 is moved to an indexed position close to the closing dea d point position, so as to minimize the closing time. The circuit breaker also has a n opening dead point position. To minimize the opening-closing cycle time, the motor 82 drives the operating member from the closed position to an indexed turning position situated between the opening dead point position and the loaded position, before changing direction.