Implementation and Analysis of Rolling Bearing Faults Caused by Shaft Currents

Bearing failures make the greatest proportion of damages affecting electrical machines. At the same time, there are various types of the bearing failures but the most common are related to damages caused by shaft currents in the machines leading to problems in industry. In this case, diagnostics and timely prediction of potential faults are important. The paper gives an overview of the problem describing main bearing damages. Particularly, different shaft currents related faults are discussed in detail. Implementation of these faults in laboratory environment is introduced. Analysis of rolling bearing faults caused by shaft currents is presented.