For a slip ring induction motor having leakage impedance of (1+j), the maximum generated emf would be attained at _________(a) 135°(b) 45°(c) -45°(d) 0°The question was asked by my school teacher while I was bunking the class.The question is from Flux and MMF Phasors and Waves in Induction Motors topic in section Induction Machines of Electrical Machines

For a slip ring induction motor having leakage impedance of (1+j), the

1.	For a slip ring induction motor having leakage impedance of (1+j), the maximum generated emf would be attained at _________(a) 135°(b) 45°(c) -45°(d) 0°The question was asked by my school teacher while I was bunking the class.The question is from Flux and MMF Phasors and Waves in Induction Motors topic in section Induction Machines of Electrical Machines
Answer» Right choice is (a) 135° Best explanation: Due to LEAKAGE reactance there will be a LAGGING of ANGLE θ in the excitation VOLTAGE with the main FLUX. So the maximum is attained at 90°+θ.

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