Analysis Of Broken Rotor Bars Fault In Inverter Fed Induction Motor By Means Of Motor Current Signature Analysis And Stray Flux Of Motor

Abstract

In this paper the analysis of effect of broken rotor bar fault in squirrel-cage induction motor fed by frequency converter is presented. The motor current signature analysis as well as stray flux of motor were used in order to verify the capability of these techniques to identify the presence of different types of investigated fault in case of different types of supply and load. There were measured 4-pole motors with different level of broken rotor bar fault under different loads. Obtained data is presented in the form of graphs and tables and the comparison of obtained results was carried out.