machine condition fault Articles
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Bearing fault severity estimation using time–based descriptors for rotating electric machines
This paper evaluates the bearing fault severity in rotating electric machines based on the time–based descriptors derived from machine vibration signal. Time–based descriptors are independent of bearing dimensions and machine dynamics. To establish the relationship between the time–based descriptor and bearing fault severity, a wide range of defective bearings are examined on an experimental ...
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Detection of inter-coil short circuits in coils of salient pole synchronous generator field winding on the basis of analysis of magnetic field in the machine
Abstract This paper deals with detection of inter-coil short circuits in coils of the salient poles synchronous generator excitement winding on the basis of the analysis of the magnetic field in the machine. Applying FEM to the generator model, magnetic field wave forms in the machine, on the points of interests, under both, faultless and faulty conditions were calculated. When results were ...
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