A simple and low cost three-phase sector induction machine

The experimental tests are very important in the study of electromagnetic devices. They are employed for validation of theoretical models, determination of parameters and assessment of operating characteristics. In the specific case of the linear induction machine, the test facilities are relatively expensive and complex. This paper presents the development of a simple and low cost three-phase sector induction machine, built from a rotating single-phase induction machine. Because of its physical configuration, the sector machine can be employed to emulate a linear induction one. The description of the construction of the sector machine is presented as well as the winding characteristics and the results of initial tests. Experimental results are compared to theoretical ones based on an equivalent circuit model.