Adjustable-speed alternating current motor

Details Adjustable-speed alternating current motor Adjustable-speed alternating current motor

H - Electricity

02

P

H02P 7/282 (2006.01) H02K 16/02 (2006.01)

Patent

CA 2046494

Abstract In an induction motor, which may be a squirrel-cage or wound-rotor. it is known that the speed of the motor depends on the supply frequency and the number of stator poles. Even if the speed of a wound-rotor type motor can be controlled, it depends mainly by the load. In this invention, the speed of an induction motor can be fully controlled -no matter of load- by applying a very small amount of direct-current on it.

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