Fault Detection of Phase to Phase Fault in Series Capacitor Compensated Six Phase Transmission Line using Wavelet Transform

This paper proposes a fault detection and faulty phase identification technique based on wavelet transform for series compensated six phase transmission line against phase to phase faults. Six phase current signals are processed using wavelet transform with daubechies-4 wavelet up to level-1. Detail coefficients are reconstructed using wavelet reconstruction process. Different fault parameters such as fault type, fault resistance, fault inception time, and fault location of each phase to phase fault case are varied to evaluate the performance of the proposed scheme. Simulation results exemplify that the proposed technique effectively detects all types of phase to phase faults; and identifies the faulty phase accurately.