Effect of Power Deviations on Squirrel-Cage Induction Motors: Addressing the Impact of Voltage and Frequency Variations

This article discusses the effects of voltage and frequency variation on squirrel-cage induction motor performance. The major focus of the article is the impact of these elements on efficiency, thermal insulation life, starting characteristics, reliability, and cost penalties. Transient voltages are identified and harmonic distortion issues are also addressed; voltage/frequency issues associated with adjustable frequency drive applications, however, are beyond the scope of this article.