Ferroresonance on Rural Distribution Systems

The conditions under which ferroresonant overvoltages can occur on rural distribution systems are reviewed. A brief description of the phenomenon of ferroresonance is given, and the reasons for the increasingly frequent occurrence of ferroresonance on modern systems are enumerated. Preventive or corrective measures that have been proposed are reviewed and evaluated. A guide for the selection of corrective or preventive measures on rural systems is presented.