Jarosław Tulicki
Technical Transactions, Electronical Engineering Issue 3-E 2016, 2016, pp. 99 - 113
https://doi.org/10.4467/2353737XCT.16.269.6068The article presents the possibility of using axial flux signals in the fault diagnosis of low-power induction machines working under varying load conditions. The study involved cases of asymmetrical rotors and stators in steady state and transient conditions during start-up. The laboratory measurements were performed on a modified induction motor, which was equipped with a special coil built into the bearing shield allowing the measurement of the voltage proportional to the motor axial flux. Examples of the obtained waveforms and numerical data were supplemented by conclusions and a review of current knowledge concerning the application of the axial flux signal for the purpose of the fault diagnosis of squirrel cage induction motors.
Jarosław Tulicki
Technical Transactions, Electronical Engineering Issue 2-E (13) 2015, 2015, pp. 159 - 170
https://doi.org/10.4467/2353737XCT.15.094.3926This article presents the idea of asynchronous motor’s non-stationary stator starting current, filtration methods, in the non-invasive diagnosis of the rotor cage. The mathematical description of the selected analysis forms is omitted in favor of an indication of the practical aspects of the method application and the obtaining of sample analysis results. The object of the study was the single cage induction motor with exchangeable rotors for different faults, machine’s load was a generator with field current control system, which was used to control the load torque.