Analysis of Existing Methods of Diagnosis of Electric Motors and their Development Prospects

There is an actual problem of ensuring troublefree operation of all equipment, such as the DC motor at rolling production. Therefore, this article is devoted to the methods of diagnosing DC motors, which do not require the withdrawal of motor operation: method at current consumption of the motor, vibration and thermal method, disadvantages of these methods. This article proposes another method based on the analysis of commutation processes in the commutator brush allowing one to increase the accuracy and objectivity of the monitoring of the commutating processes in the operation of electric motors. Rolling groups, characterized by similar engines, are operated in the same mode, wherein the load change is the same for all engines. Therefore, a promising method of diagnostics is based on the analysis of connections of signals with similar parameters (vibration, current, high-frequency radiation).