@inproceedings{938b7e5a1ad0454d9bdbd5c7bb795705,
title = "Detection of broken outer cage bars for double cage induction motors under the startup transient",
abstract = "Unlike single cage rotor fault detection, FFT-based steady state spectrum analysis techniques can fail to detect outer cage faults in double cage induction motors due to the small outer cage current under running conditions. Double cage motors are typically employed in applications that require loaded starts. This makes the outer cage vulnerable to fatigue failure since it must withstand the high starting current and long startup time frequently. However, there are only a few publications that investigate detection techniques specifically for double cage motors. In this paper, considering that the influence of the faulty outer cage is strong at startup due to the large outer cage current, detection of outer cage faults under the startup transient is investigated. A Discrete Wavelet Transform-based method is proposed as a viable solution to detection of outer cage faults for double cage motors. An experimental study on fabricated copper double cage induction motors shows that the proposed method provides sensitive and reliable detection of double cage rotor faults compared to FFT.",
keywords = "AC Machine, Condition Monitoring, Double Cage Rotor, Fast Fourier Transform (FFT), Fault Diagnostics, Induction Motor, Motor Current Signature Analysis (MCSA), Outer Cage Fault, Transient Analysis, Wavelet Transform",
author = "Jose Antonino-Daviu and Martin Riera-Guasp and Joan Pons-Llinares and Jongbin Park and Lee, {Sang Bin} and Jiyoon Yoo and Christian Kral",
year = "2011",
doi = "10.1109/DEMPED.2011.6063594",
language = "English",
isbn = "9781424493036",
series = "SDEMPED 2011 - 8th IEEE Symposium on Diagnostics for Electrical Machines, Power Electronics and Drives",
pages = "1--8",
booktitle = "SDEMPED 2011 - 8th IEEE Symposium on Diagnostics for Electrical Machines, Power Electronics and Drives",
note = "8th IEEE Symposium on Diagnostics for Electrical Machines, Power Electronics and Drives, SDEMPED 2011 ; Conference date: 05-09-2011 Through 08-09-2011",
}