A 100kw, 330v, 50hz, 3 phase, star connected induction motor has a synchronous speed of 500 rpm. The full load slip is 1.8% and full load power factor 0.85. Stator copper loss is 2440w, iron loss is 3500w, rotational losses is 1200w. Evaluate (i) rotor copper loss, (ii) the line current and (iii) the full load efficiency.
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