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Explain the working of a single phase capacitor start induction motor. 
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Single phase capacitor start induction motor: 

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working principle of capacitor start single phase induction motor: In this motor, auxiliary winding is in series with a capacitor and remains in the circuit only during starting. Due to capacitor, the phase difference of approximately 900 is obtained between main and auxiliary winding currents which results in production of rotating magnetic field. This rotating magnetic field is cut by stationary rotor conductors; emf is induced in it, so according to faradays law of electromagnetic induction motor starts rotating. After attaining 75-80% of rated speed, centrifugal switch in series with auxiliary winding get opened and auxiliary winding gets disconnected. The motor then continues to run without capacitor & only with main winding in the circuit.

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Single phase capacitor start induction motor

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