TY - JOUR
TI - The detection of coil shorting in induction motors by means of wavelet analysis
AU - Zając, Mieczysław
AU - Sułowicz, Maciej
TI - The detection of coil shorting in induction motors by means of wavelet analysis
AB - 
	This paper presents the results of an analysis of signals recorded in different inter-turn short- circuit states in the stator windings of a squirrel-cage motor operating under a constant load. The analysis was carried out in a time-frequency domain using a simple orthonormal wavelet base that can be used in a real system without the need to acquire specialist software. The choice of analytical was associated with the existence of a periodic energy flow between adjacent frequency bands, thus making it difficult to diagnose the Fourier analysis. The aim of the study was to gather data necessary for the development of a real-time diagnostic system. Magnetic axial flux, the zero voltage signal, the short- circuit current, vibration acceleration, sound pressure, electromechanical torque, currents and phase voltages were tested as diagnostic criteria. The paper presents the main results of the analyses of magnetic axial flux signal and conclusions.
VL - 2016
IS - Elektrotechnika Zeszyt 2-E 2016
PY - 2016
SN - 0011-4561
C1 - 2353-737X
SP - 135
EP - 150
DO - 10.4467/2353737XCT.16.253.6052
UR - https://ejournals.eu/czasopismo/czasopismo-techniczne/artykul/the-detection-of-coil-shorting-in-induction-motors-by-means-of-wavelet-analysis
KW - diagnostics of electromechanical systems
KW - induction motor
KW - short circuits
KW - signal analysis
KW - wavelet analysis