DRIVING GEAR OF AC ELECTRIC MOTOR

摘要

PURPOSE: To provide the voltage of an optimum phase angle at start and during operation of a single-phase motor, by connecting an single-phase two-winding induction motor to a two-phase power supply circuit. CONSTITUTION: A main winding 152 and a start winding 154 of a single-phase two-winding induction motor 150 are connected to both ends of the a phase voltage VP1 and a second phase voltage VP2 of a two-phase power source. The windings 152 and 154 are connected by a common winding 156. The two- phase power source drives a motor 150 with a preferred phase angle.