Effects of voltage harmonics on the electrical and mechanical performance of a three-phase induction motor

Due to the increasing requirement of precise control and equipment performance of a modern facility, the appearance of voltage harmonics in the power system has drawn great attention. Its impact on three-phase induction motors is one of the major concerns in industrial power systems. This paper uses a real load test to investigate the performances of a three-phase induction motor under different voltage distortion factors (VDF). The monitored qualities include motor efficiency, temperature rise, and torsional vibration. Adequacy and suggestions to the related regulations of harmonics control and limits are also presented.