Question: A star - connected 3 - phase supply, in which the e . m . f . generated in each phase is 4 5 0

A star-connected 3-phase supply, in which the e.m.f. generated in each phase is 450 V, supplies a delta connected 100 hp induction motor which has a full load efficiency of 96% and a power factor of 0.85 lagging. Calculate (a) the line current for the supply [5 marks](b) the terminal voltages on the motor [3 marks](c) the phase current for the induction motor [3 marks](d) the impedance per phase and the equivalent star-connected impedance per phase of the induction motor.

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