Instruments and Systems: Monitoring, Control, and Diagnostics Annotation << Back Functional diagnostics of asynchronous electro-motors in transition operating modes Smirnov V.I., Chernov D.V. In this article authors investigated issues of disbalance diagnostics for induction motor’s rotor in transient working modes, when diagnosis is based on the measuring of phase currents and leakage fields. Diagnostic characteristics were identified by full-scale experiment and mathematical model of diagnosis object.