Analytical Approach to Determine Active and Reactive-Power Curves of Induction Motor Using Manufacturer Data

Active-power and reactive-power curves are a very much important characteristic of induction motors. Frequently, a simple and quick determination of these curves is required for protection and power factor correction. Hence, in this paper, an analytical approach to estimate active- and reactive-power curves is presented. To confirm an acceptable accuracy of the proposed method, the validation is performed. Both power curves obtained from the proposed method and the traditional equivalent circuit are compared. Good agreements are observed.