The software used for making educational tools allows analyze the engineering phenomena in a more complete and explained way, by means of simulation and experimentation.

It is necessary to know the equations about the behaviour of the object under study for the generation of these tools. Also, these equations have to be solved through the right software, obtaining the output values from the input values. With this software tool it is possible to realize new studies only modifying the parameters of the model or the input values.

In this work, the alternating current electric machines (synchronous, asynchronous and transformers) are analysed. These electric machines are studied by means of differential equations and equivalent circuits (with simulators). We obtain the characteristic functions (power-speed, current-speed, and others) from the models that are solved. There have been analysed the results of the machines behaviour for different charge conditions, voltage and frequency (from power supply), the results of the behaviour as an engine and as a generator, and the analysis of active and re-active power, between others.

Joined with the simulation, this technology also allows the experimentation through the development of practices by WEB technologies that can be done with remote access. In this work, we have developed tools for testing different electric machines and for controlling them by WEB services.
These tools (simulation and experimentation) can be used both for teaching in the classroom and laboratories, and also, for doing exercises during their study time the students by themselves.