Effects of distribution network unbalance voltage types in respect to identical unbalance factor on the induction motors

The induction motors are extensively used in the industry because of their simplicity reason of economical technical preferences in residential, commercial and industrial systems. The unbalance voltage conditions has been taken into consideration by electrical engineers for studying power quality. Excessively growing warm for rotors and stators, defect of shock entropy armature and insulation as well as damaged bearings, remarkable power defect, unbalance of current of line and lower outcome resulted from the negative effectives of the voltage unbalance. In this paper, speed, torque copper losses are to be analysed under the condition of six types of voltage equilibrium by three voltage unbalance factor, a type of three-phase induction motor, thru simulation and practical test.