Abstract
In this paper, we have developed a new prototype of 0.5 hp induction motor with reduced slots in rotor bar and stator core in comparison to the conventional induction motor. The conventional induction motor usually uses 30 slots of aluminum rotor bar and 36 slots in the stator core. In our developed prototype, we used 10 slots of copper rotor bar and 24 slots in the stator core. In order to evaluate the performance of this new prototype, we measured various losses such as core loss, copper loss, friction and windage losses, rotor loss and stray loss and compared them with the 0.5 hp conventional induction motor. The comparison results revealed that the developed prototype provide with a significant reduction, the motor losses. As a result, the efficiency of the new prototype is greatly improved. Key words: Induction motor, 10 slots copper rotor bar, 24 slots stator core, non-grain materials.
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