Finally, let's touch on the topic of the dynamic eccentricity of the electric motor rotor. The defect is relatively rare and interesting. As usual, from my own practice, therefore, further there will be spectra, the search for the cause, and of course photographs.
Defects of electric motors of electromagnetic origin occupy a special niche in technical diagnostics, their identification is complicated, separate books are devoted to them. In this article I will share a recent case from my practice.