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The direction of the single-phase IM can be reversed by using which one of the method?(a) By interchanging the supply terminals(b) By removing the capacitor(c) By changing the direction of auxiliary winding current(d) By removing the main windingThe question was asked in an interview for job.Asked question is from Motors Rating and Heating topic in chapter Rating and Heating of Motors of Electric Drives

Answer»

Correct option is (a) By interchanging the supply terminals

Explanation: The direction of the single-phase IM can be reversed by changing the direction of AUXILIARY WINDING or main winding current.The net torque DEVELOPED in the IM is ImIasin(Φ).



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