Influence of rotor static eccentricity on the noise level of a squirrel cage induction motor

Author

Negoita, Andrei ; Ionescu, Razvan Mihai

Author_Institution

Adv. Electr. Syst., Transilvania Univ. of Brasov, Brasov, Romania

fYear

2011

Firstpage

1

Lastpage

4

Abstract

One of the most important causes that lead to fault in the case of induction motors is rotor eccentricity which causes the unbalanced magnetic pull that leads to an increase in the noise level of the machine and a shorter lifespan of the motor through excessive wear and tear of the components. In this paper, the authors present the differences between a motor with no eccentricity and the same motor with 15% static eccentricity in terms of the amplitude and frequency spectrum of the magnetic forces generated. A 1.5 kW, 1000 rpm, squirrel cage induction motor is analyzed and the influence of eccentricity on the noise level of the machine is shown.

Keywords

electrical faults; magnetic forces; rotors; squirrel cage motors; amplitude spectrum; frequency spectrum; induction motor fault; magnetic force; power 1.5 kW; rotor static eccentricity; squirrel cage induction motor noise level; unbalanced magnetic pull; Air gaps; Harmonic analysis; Induction motors; Magnetic flux; Rotors; Stator windings; Induction motor; fault; noise level; static eccentricity;

fLanguage

English

Publisher

ieee

Conference_Titel

Environment and Electrical Engineering (EEEIC), 2011 10th International Conference on

Conference_Location

Rome

Print_ISBN

978-1-4244-8779-0

Type

conf

DOI

10.1109/EEEIC.2011.5874826

Filename

5874826