Induction Motors Operation Condition Evaluation and Damage Degree Estimation Methods

The aim of this paper is to study methods for induction motor diagnostics and current operational condition estimation. The factors, which lead to untimely motor breakage, were analyzed. The influence of faulty motor operation on its exploitational parameters, such as increased losses and insulation wear were highlighted and analyzed. It was analyzed increase in expenses caused due to faulty motor exploitation. It was set the further ways of research related to forecasting motor expected lifetime basing on its current exploitation parameters, which aimed to increase its economic efficiency. Methods, used to evaluate expenses due to untimely. Timely diagnosis allows avoiding additional power losses and preventing serious damages which can significantly reduce operational expenses. Power supply quality influence is researched as one the most important factor that affects induction motor condition. Methods that have been revised in the article are related to voltage and current signal analysis.