Find line current in primary of autotransformer at starting

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Reference no: EM13293095

An 11 KW, 220 V, 3-phase induction motor has a full load efficiemcy of 0.85 and a power factor of 0.85. At standstill the motor draws 8 times full load current and develops 2 times full load torque . An auto transformer is used to reduce the starting current and to give full load torque at starting .Neglecting no load current , determine : (a) Voltage applied at starting , (b) Full load line current (c) Current drawn by the motor at starting (d) Line current in the primary of autotransformer at starting .

Reference no: EM13293095

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