Experimental analysis of the three-phase induction motor with spiral sheet rotor

The objectives of this article arise through the investigation of a motor with a high starting torque although with limited intensities, weak intensity variations depending on the load, controlled losses in no-load tests, an acceptable performance in steady state and with a good response in transient periods. All these requirements would have to be obtained without the help of power electronics, in this way the motor would be more robust, longer lasting and without the need for auxiliary equipment. In this article, the results for the sheet rotor type A are analyzed, and a comparison made with the squirrel cage rotor, the solid rotor with rings and finally with the hollow diamagnetic rotor, all working at 1,500 and 3,000 rpm.