Title :
Shaft signals of salient-pole synchronous machines for eccentricity and shorted-field-coil detections
Author :
Hsu, John S. ; Stein, Jan
Author_Institution :
Center for Electromech., Texas Univ., Austin, TX, USA
fDate :
9/1/1994 12:00:00 AM
Abstract :
Relationships between shaft signals and eccentricities of salient-pole synchronous machines are studied. The magnitude and the thickness of shaft-signal loci reflect steady and dynamic eccentricities. Harmonic components of shaft signals closely relate to shorted field coils. Threshold records can be used for indications of changes in eccentricities and shorted field coils. Extensive experimental work agrees with the theoretical predictions
Keywords :
fault location; machine testing; machine theory; machine windings; synchronous machines; eccentricity detection; harmonic components; magnitude; salient-pole synchronous machines; shaft signals; shaft-signal loci; shorted-field-coil detection; thickness; Brushes; Coils; Grounding; Magnetic flux; Rotating machines; Saturation magnetization; Shafts; Synchronous machines; Turbogenerators; Voltage;
Journal_Title :
Energy Conversion, IEEE Transactions on
