An accurate fault location method for radial distribution system using one terminal data

Abstract

This paper presents an extensive fault location algorithm for in an electrical energy distribution system. The algorithm requires phasor information comprising of voltage and current data from one end of the system in case of a fault event in an electrical distribution system. This algorithm can be used online or offline using the data stored in Digital Fault Recorder (DFR). The proposed fault location algorithm tested with various conditions such as fault resistance, inception angle, source to line impedance rations (SIR), load angle etc by using PSCAD simulations. The PSCAD simulation studies demonstrate that the proposed algorithm give high accuracy under various power system and fault conditions.