Three-phase transformer model validation for ferroresonance analysis

Ferroresonance is a complex nonlinear phenomenon that may be initiated in many different ways and involves the association of capacitances and non-linear magnetizing inductances. Although ferroresonance has been present in power systems for more than a century, its behavior and characterization still remain widely unknown This work illustrates a proper guideline for transformer modeling starting from laboratory test measurements. The paper also proposes a procedure for performing a ferroresonance essay under a controlled environment.