You are tasked with designing the stator winding distribution of a three-phase, 60 Hz induction motor, whose rated speed will be 900 rpm. You will have only 36 equidistant stator slots at your disposal to place in conductors.
(a) Determine and sketch on separate axes the winding distribution of phases a, b and c. Adopt a conductor placement approach that will minimize thegeneration of higher-order harmonics in the rotating magnetic flux wave. Assume you have 132 turns to distribute per phase.
(b) Sketch on separate axes the air gap H-field distribution associated with the three windings. Assume that the air gap length is much smaller than theair gap mean radius.
(c) Prove that if three-phase balanced currents are injected in the stator windings, a single-direction H field travelling wave would be generated in the airgap of the machine
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You are tasked with designing the stator winding distribution of a three-phase, 60 Hz induction motor, whose rated speed will be 900 rpm. You will have only 36 equidistant stator slots at your disposal to place in conductors.