The influence of the winding type on the noise level of two-speed three-phase induction motors

Autor: Ciprian Gheorghe Nistor, Andrei Negoita, Ioan Peter, Septimiu Motoasca, Razvan Mihai Ionescu, Ovidiu Plesa, Gheorghe Scutaru
Rok vydání: 2012
Předmět:
Zdroj: 2012 13th International Conference on Optimization of Electrical and Electronic Equipment (OPTIM).
DOI: 10.1109/optim.2012.6231897
Popis: The purpose of this paper is to study the influence of the type of winding — double layer or single layer — to the global noise level of the machine. For this purpose, two variable speed induction motors have been studied, of the type M3AA 71 B4/8 manufactured by Electroprecizia S.A. Sacele, Romania, with Dahlander windings, star connected — for the low speed and double star connected — for the high speed. The motors are modelled from magnetic and mechanical point of view with finite element softwares. The investigated motors were placed in the semi-anechoic chamber in order to determine the noise-to-frequency characteristics (spectrograms).
Databáze: OpenAIRE