The magnetic noise of three-phase induction motors with squirrel cage rotors

Author

Peter, I. ; Scutaru, Gh

Author_Institution

S.C. Electroprecizia S.A. Sacele, Brasov

fYear

2008

fDate

22-24 May 2008

Firstpage

63

Lastpage

68

Abstract

In this paper a study of the magnetic noise in three-phase one and two-speed cage rotor, totally enclosed, externally cooled induction motors is presented. Investigations include two-speed three-phase induction motors with Dahlander winding connection or separate windings, with rated speeds of 3000/1500 rpm, 1500/750 rpm, 1500/1000 rpm. The investigated motors (manufactured by SC Electroprecizia SA) were placed in a semi-anechoic chamber in order to determine the noise versus frequency characteristics (spectrograms). The paper is based on results and conclusions obtained after analyzing these spectrograms. The importance of the pressure applied by the stacking of the stator laminations for the level of the magnetic noise is also presented.

Keywords

machine windings; squirrel cage motors; Dahlander winding connection; magnetic noise; semi-anechoic chamber; spectrograms; squirrel cage rotors; three-phase induction motors; Frequency; Induction motors; Lamination; Magnetic analysis; Magnetic noise; Manufacturing; Rotors; Spectrogram; Stacking; Stators;

fLanguage

English

Publisher

ieee

Conference_Titel

Optimization of Electrical and Electronic Equipment, 2008. OPTIM 2008. 11th International Conference on

Conference_Location

Brasov

Print_ISBN

978-1-4244-1544-1

Electronic_ISBN

978-1-4244-1545-8

Type

conf

DOI

10.1109/OPTIM.2008.4602388

Filename

4602388