Capacitor Start Capacitor Run Motor - Circuit Globe Capacitor Start Capacitor Run Motor. The Capacitor Start Capacitor Run Motor has a cage rotor, and its stator has two windings known as Main and Auxiliary Windings. The two windings are displaced 90 degrees in space. There are two capacitors in this method one is used at the time of the starting and is known as starting capacitor. Motor start and run capacitor - Electrical Engineering Centre For starting a single phase motor,it required a high capacitance of capacitor for a high starting torque .Start capacitors are designed for momentary userally this type of motor used a centrifugal switch or Potential relay to disconnected this when approximately 3/4 the speed is reached to avoid overloads of the auxiliary winding.
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