Title :
Detection of short circuits between stator laminations of electrical machine by analysis of external magnetic field
Author :
Romary, R. ; Jelassi, S. ; Brudny, J.-F. ; Mimouni, M.
Author_Institution :
Lab. Syst. Electrotechniques et Environnement (LSEE), Univ. d´´Artois, Bethune
Abstract :
This paper presents the results of a research devoted to the detection of short circuits between stator laminations of electrical machine using external magnetic field. Experimental measurements lead one to display the influence of various phenomena on this magnetic field. It is shown that the surface currents due to burrs at the external surface of the machine have an important contribution compared to the increase of the eddy currents in the short circuit in the short circuit volume.
Keywords :
eddy currents; electric machines; fault diagnosis; laminations; short-circuit currents; stators; electrical machine; external magnetic field analysis; short circuits detection; stator laminations; surface currents; Circuit faults; Displays; Electrical fault detection; Fault detection; Lamination; Magnetic analysis; Magnetic circuits; Magnetic field measurement; Magnetic fields; Stators;
Conference_Titel :
Electrical Machines, 2008. ICEM 2008. 18th International Conference on
Conference_Location :
Vilamoura
Print_ISBN :
978-1-4244-1735-3
Electronic_ISBN :
978-1-4244-1736-0
DOI :
10.1109/ICELMACH.2008.4799977
