Fault-type identification for electric power delivery systems

摘要: Disclosed herein are systems and methods for identifying a fault type in an electric power delivery system using angle difference between total zero-sequence current negative-sequence comparison of phase-to-phase currents against threshold. The falls into one number predetermined sectors. Each sector is associated with phase-to-ground phase-to-phase-to-ground or two types. current(s) the indicated type(s) compared threshold to determine which types actual type. may be multiple maximum current.