Ferroresonance in Power Systems: Causes, Effects, and Engineering Mitigation

Introduction Ferroresonance is one of the most misunderstood and underestimated phenomena in medium-voltage (MV) and high-voltage (HV) power systems. Unlike short circuits or insulation failures, it is not a fault condition, yet it can lead to severe overvoltages, VT failures, insulation damage, and protection maloperation. With the increasing use of long MV cables, compact substations, … Read more