Title :
On-line shock vibration diagnostics of large electric machines
Author :
Golubev, Alexander ; Tsvetkov, Vladimir
Author_Institution :
Predictive Diagnostics, Cutler-Hammer Inc., Minnetonka, MN, USA
Abstract :
The looseness of the stator elements of an electric machine can be diagnosed using the method described in this paper. The method is based on a spectrum vibration analysis applied to measurements provided at several points of a machine frame under operating conditions. Examples of practical applications to large generators in Russia and the first tests on motors in the USA are presented.
Keywords :
electric machines; fault diagnosis; machine testing; spectral analysis; stators; vibration measurement; faults diagnosis; large electric machines; loose stator elements; online shock vibration diagnostics; operating conditions; spectrum vibration analysis; Bars; Electric machines; Electric shock; Frequency; Lamination; Pulse shaping methods; Shape; Stator cores; Stator windings; Vibration measurement;
Conference_Titel :
Pulp and Paper, 1999. Industry Technical Conference Record of 1999 Annual
Conference_Location :
Seattle, WA, USA
Print_ISBN :
0-7803-5526-1
DOI :
10.1109/PAPCON.1999.779354
