ELECTROMECHANICAL CONTROL DEVICE Russian patent published in 2013 - IPC H02P9/14 H02P9/30 

FIELD: electricity.

SUBSTANCE: voltage multiplier, toroidal potentiometer, drive, a unit of two automatic circuit-breakers and commutation switch are introduced into elecrtromechanical control device; at that output of three-phase rectifier is connected to the first input of the automatic circuit-breaker having an output connected to the first input of the unit of two automatic circuit-breakers having the second output and the first and second inputs connected respectively through toroidal potentiometer, through voltage multiplier to the above output of the automatic circuit-breaker, through commutation switch to input of the electric motor, to input of the drive connected rigidly to toroidal potentiometer.

EFFECT: automatic voltage control without bulkiness of the device, increasing economy of power resources.

1 dwg