Homework 2 A three-phase, two-pole, 35 hp, 480 V, 60 Hz, Y-connected induction motor has the following constants in ohms per phase referred to the stator: R = 0.322N R2 = 0.196 Q X1 = 0.6752 X2 = 0.510N Xm = 12.52 The total rotational losses are 1850 W and are assumed to be constant. The core loss is lumped in with the rotational losses. For a rotor slip of 3% at the rated voltage and rated frequency, determine the following: (b) The stator current (c) The (a) The speed in rpm and in rad/s power factor (d) The developed power and output power (e) The developed torque and output torque (f) The efficiency.

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DC Generator

An electromechanical machine which converts input mechanical energy to respective output electric energy is called a generator.