Induction motors have become the most used electrical motors in the world. They are rugged, easy to maintain, low in cost and good in performance. Those benefits have made induction motors very popular among users. During their exploitation period induction motors are exposed to various stresses that can become fatal to their performance and bring with them huge economic losses and safety risks...

This paper highlights the benefits of replacing the classical cast aluminum cage with a cast copper cage in the manufacture of future generation of high efficiency induction machines used as motors or generators. The numerical analysis carried out in the paper is based on a 2D plane-parallel finite element approach of the induction machine, the numerical results being discussed and compared wit...

Squirrel-cage induction motors play an important role in the world’s industry. Hence there is a strong demand on their reliable and safe operation. Their faults and failures can lead to excessive downtimes and generate enormous costs due to reduced output, emergency maintenance and lost revenues. In this paper a FEM model of a three phase squirrel-cage induction machine is presented. It is used...

A study is conducted on the state-of-the-art manufacturing practices of conventional industrial and research-and-development (R&D) firms manufacturing electric induction motors. It is found that current industrial processes cannot produce high-performance motors, and that current R&D processes are too costly. A new manufacturing process for fabricating the rotors of squirrel cage induction moto...

An existing bond graph of a squirrel cage induction motor was modified to make the bond graph physically more representative. The intent was to form a one-to-one correspondence between motor components and bond graph elements. Components explicitly represented include the stator coils, the squirrel cage rotor bars, and the magnetic flux routing section. The final bond graph spans electrical, ma...

Analysis of broken rotor bars in large induction motors Projeto acadêmico sem fins lucrativos desenvolvido no âmbito da iniciativa Acesso Aberto Artigos 407 A new technique to detect broken rotor bars, in large squirrel-cage induction motors is presented. In order to avoid problems in industrial applications, the electromagnetic behavior of induction machines with rotor faults was examined, by ...

This paper presents the designing of the main dimensions and the selection of the magnetic and electric loading for different rating of squirrel cage induction motors to reduce the overall losses and to improve the power factor. A software development strategy for the design of main dimensions and the effects of various factors are studies to select the best parameters for the particular rating...