Title :
Utilisation of stray electromagnetic field for no-contact operational diagnostic of asynchronous machine
Author :
Bernat, Petr ; Kacor, Petr
Author_Institution :
Dept. of Electr. Power Eng., VrB - Tech. Univ. of Ostrava, Ostrava, Czech Republic
Abstract :
The paper refers to new options of functional testing of asynchronous motor using a stray electromagnetic field as the carrier of diagnostic information on the surface of machine frame with simultaneous comparisons of utility, advantages and disadvantages of the existing and most common method of diagnostics performed using the measurement of the machine supply current. This method is patented as Czech Patent CZ 303 470, ÚPV 2012.
Keywords :
electric current measurement; electromagnetic fields; induction motors; machine testing; asynchronous machine; diagnostic information; functional testing; machine frame surface; machine supply current; no-contact operational diagnostic; stray electromagnetic field; Electromagnetics; Lead; Testing; Induction motor; current spectrum; electromagnetic emission; frequency spectrum; functional testing; leakage electromagnetic field; on-line diagnostics; stray electromagnetic field; technical diagnostics;
Conference_Titel :
ELEKTRO, 2014
Conference_Location :
Rajecke Teplice
Print_ISBN :
978-1-4799-3720-2
DOI :
10.1109/ELEKTRO.2014.6848898
