This is a ferroresonance generator created by an LC series circuit. This circuit contains non-linear magnetizing inductance which resonates with line shunt capacitance. This simulator was built and tested in lab, under controlled conditions, using a 3 phase delta fed primary transformer trainer bank and 3 - 21 uF capacitors. The capacitors are wired "phase to ground" from source of feed (wye) and the transformers are wired "phase to phase" (delta).
#ferroresonance