The Purpose of this paper is designing a new technique for power factor improvement of 3 phase induction motor and single phase induction motor. Improvement of power factor necessary to make as close as unity without facing penalty from electrical distributers. So that is requirement to improve power factor of induction motor, because it operate in lagging power factor. Automatic power factor improvement techniques can be applied to the industries, power factor mostly operate nearest to unity

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... r systems to make them stable and efficiency of the system as well as the apparatus capacity increases. This is done by use of microcontroller to reduce the costs.