The speed control circuit without governor

Published:2012/11/13 20:34:00 Author:Ecco | Keyword: speed control , without governor | From:SeekIC

General capacitor start motor circuit is shown in (a), it uses capacitor phase shift to produce starting torque. If the motor winding connection is changed into series from parallel, as shown in Figure ( b ), at this time, the voltage of the main winding LR and the secondary winding LA is relatively lower than the parallel, it is equivalent of connecting a reactor in series in the circuit, then the motor speed natural declines.



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