Title :
Influence of rotor static eccentricity on the noise level of a single phase squirrel cage induction motor
Author :
Negoita, Andrei ; Scutaru, Gheorghe ; Peter, Ioan ; Ionescu, Razvan Mihai ; Plesa, Ovidiu ; Nistor, Ciprian
Author_Institution :
Transilvania Univ. of Brasov, Brasov, Romania
Abstract :
One of the most important causes that lead to fault in the case of induction motors is rotor eccentricity. The rotor eccentricity causes an 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 0.75 kW, 1500 rpm, capacitor run single phase squirrel cage induction motor is analyzed and the influence of eccentricity on the noise level of the machine is shown.
Keywords :
capacitor motors; induction motors; magnetic forces; rotors; squirrel cage motors; capacitor; machine noise level; magnetic force amplitude spectrum; magnetic force frequency spectrum; motor lifespan; power 0.75 kW; rotor static eccentricity; single phase squirrel cage induction motor; unbalanced magnetic pull; Capacitors; Harmonic analysis; Induction motors; Magnetic flux; Magnetic forces; Rotors; Stators;
Conference_Titel :
Optimization of Electrical and Electronic Equipment (OPTIM), 2012 13th International Conference on
Conference_Location :
Brasov
Print_ISBN :
978-1-4673-1650-7
Electronic_ISBN :
1842-0133
DOI :
10.1109/OPTIM.2012.6231893