Title :
Mechanical fault detection in induction motors
Author :
Bertani, S. ; Knight, A.M.
Author_Institution :
Dept. of Electr. & Comput. Eng., Alberta Univ., Edmonton, Alta., Canada
Abstract :
This paper presents a study to detect mechanical irregularities in low voltage random wound induction motors by means of stator current monitoring and spectrum analysis. An analysis of the MMF and permeance functions to classify frequency components of the stator field in both the stator and rotor reference frame is presented. In addition, a test rig designed to introduce different degrees of static eccentricity in the motor with new movable bearing housings is described in detail. Experimental tests prove the theoretical analysis discussed and significant results are presented.
Keywords :
fault location; harmonic analysis; induction motors; rotors; stators; bearing housings; induction motors; mechanical fault detection; permeance functions; rotor reference frame; spectrum analysis; static eccentricity; stator current monitoring; Condition monitoring; Costs; Fault detection; Frequency; Induction motors; Low voltage; Rotors; Stator cores; Stator windings; Wounds;
Conference_Titel :
Electrical and Computer Engineering, 2003. IEEE CCECE 2003. Canadian Conference on
Print_ISBN :
0-7803-7781-8
DOI :
10.1109/CCECE.2003.1226436
