@ARTICLE{Glowacz_Adam_Fault_2024, author={Glowacz, Adam and Sulowicz, Maciej and Kozik, Jarosław and Piech, Krzysztof and Glowacz, Witold and Li, Zhixiong and Brumercik, Frantisek and Gutten, Miroslav and Korenciak, Daniel and Kumar, Anil and Lucas, Guilherme Beraldi and Irfan, Muhammad and Caesarendra, Wahyu and Lui, Hui}, volume={72}, number={1}, journal={Bulletin of the Polish Academy of Sciences Technical Sciences}, pages={e148440}, howpublished={online}, year={2024}, abstract={Fault diagnosis techniques of electrical motors can prevent unplanned downtime and loss of money, production, and health. Various parts of the induction motor can be diagnosed: rotor, stator, rolling bearings, fan, insulation damage, and shaft. Acoustic analysis is non-invasive. Acoustic sensors are low-cost. Changes in the acoustic signal are often observed for faults in induction motors. In this paper, the authors present a fault diagnosis technique for three-phase induction motors (TPIM) using acoustic analysis. The authors analyzed acoustic signals for three conditions of the TPIM: healthy TPIM, TPIM with two broken bars, and TPIM with a faulty ring of the squirrel cage. Acoustic analysis was performed using fast Fourier transform (FFT), a new feature extraction method called MoD-7 (maxima of differences between the conditions), and deep neural networks: GoogLeNet, and ResNet-50. The results of the analysis of acoustic signals were equal to 100% for the three analyzed conditions. The proposed technique is excellent for acoustic signals. The described technique can be used for electric motor fault diagnosis applications.}, type={Article}, title={Fault diagnosis of electrical faults of three-phasei nduction motors using acoustic analysis}, URL={http://www.czasopisma.pan.pl/Content/129999/PDF/BPASTS-03957-EA.pdf}, doi={10.24425/bpasts.2024.148440}, keywords={acoustic signal, induction motor, fault, neural network}, }