A single-phase, induction motor has stator windings in space quadrature and is supplied with a single- phase voltage of 200 V at 50 Hz. The standstill impedance of the main winding is (5.2 +j10.1) ohm and of the auxiliary winding is (19.7 +j14.2) ohm. Find the value of capacitance to be inserted in the auxiliary winding for maximum starting torque.

Question: A single-phase, induction motor has stator windings in space quadrature and is supplied with a single-

phase voltage of 200 V at 50 Hz. The standstill impedance of the main winding is (5.2 +j10.1) ohm and

of the auxiliary winding is (19.7 +j14.2) ohm. Find the value of capacitance to be inserted in the auxiliary

winding for maximum starting torque.


Answer:





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