Determine the load torque if the rotational losses are 500 w

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Reference no: EM13247388

A dc shunt motor of 50 hp, 250 V is connected to a 230 V supply and is drawing an armature current of 200 A, and is running at speed of 1200 rpm. Its armature resistance is Ra = 0.2 ohms.

Determine the value of the generated voltage E at this load condition.

Determine the load torque if the rotational losses are 500 W.

Find the efficiency of the motor if the field circuit resistance is 115 ohms.

Reference no: EM13247388

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