Driving means formed by induction motor and method for starting the same

摘要

An induction motor as driving apparatus includes two stators (9) in which two rotor cores (3,4) each formed in a squirrel cage type are rotatably mounted on a common rotary axis (2); two stators (14,15) which respectively surround the two rotors (9) and on which stator windings (12,13) are respectively wound; and a switching device (20) which supplies power by sequentially switching between one side of either the one stator winding (12) or the other stator winding (13) and both the sides of the two stator windings (12,13). Starting characteristics and operation characteristics of an induction motor are improved thereby enlarging applications of the induction motor, enhancing operation efficiency, and reducing power consumption. <IMAGE>