In this paper we present an experimental set up, built with low cost materials, for studying three-phase generators and alternating current circuits. The setup allows several experiments in c.a. regime to be carried out, which will be proposed throughout the article. In addition, the setup can be arranged to generate several waveforms with peak voltages in the order of 1 V. The student can observe harmonic distortion effects of the generator signal and its influence on the maximum average power transferred. The setup can also be used as a demonstrative tool for assisting in the phenomenological understanding of Faraday's induction law and can be used in either classrooms or laboratories.
Keywords:
three-phase generator; a.c. circuits; harmonic distortion; demonstrative experiment
