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Question: c show that for a splitphase single phase motor maximum...

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c) Show that for a split-phase, single phase motor, maximum starting torque is developed when the angle between the phase currents is equal to one-half of the standstill phase angle of the main winding. d) A single-phase induction motor of the split-phase type is supplied with 240 V single phase. The stand-still impedance of the main winding is 7.71 +j11.2 ohms and the leakage reactance of the auxiliary winding is 29.3 ohms. Determine graphically or otherwise the resistance of the auxiliary winding requires to give the machine (a) the maximum starting torque, (b) the maximum starting torque per ampere of starting current.

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