Predicting the level of airgap eccentricity in operating three-phase induction motors, by Park's vector approach

Abstract

The authors report on a study carried out to predict the level of airgap static eccentricity in operating three-phase induction motors by Park's vector approach. Two kinds of normalized severity factor are introduced, their values being calculated by means of postprocessing computational algorithms of the stator current Park's vector data. Experimental results demonstrate that strong eccentricity levels are easily predicted for different load values, either with a delta or a wye connection of machine stator windings.<>