Assessment of Electrical Machines’ State Based on Mathematical Modeling of Defect Formation in Windings

The highest quality and timely diagnostics of windings’ state various types electrical machines including asynchronous motors’ windings is an impoitant task. Among the existing diagnostic methods currently most promising are those ones based on for analyzing resonance processes occurring in machines. aim article was to assess possibility use resonant qualitative their using motors example, build mathematical models that allow describing defect formation analyze deviation relative results obtained. Analysis influence level interturn resistances, number closed turns location sections phase-frequency characteristics classes has been carried out. Mathematical obtained, coefficients polynomials determined discrepancy between these dependences experimental data estimated depending considered parameters characterizing defects coils’ Obtained them can serve as basis construction automated control systems checking assessing residual life work.