A practical approach to the teaching of electromagnetism using low cost induction motor

Abstract The paper describes the development and construction of a low-cost three-phase induction open motor for the teaching of electromagnetism in the disciplines of physics and electrical machines of the technical courses. Voltage stabilizer scrap materials were used in the construction of the prototype. Today's computers have built-in power supplies with advanced technology that eliminates the use of voltage stabilizer modules. As results, many of these modules are no longer used, becoming scrap and generating disposal problems for the environment. The motor was implemented and works satisfactorily for the intended purpose. The prototype is used in the practical classes of electromagnetism and electric machines of the technical level courses in electrotechnology and technology in industrial automation. In these classes several phenomena of electromagnetism related with the induction motor are discussed.