A Traveling Wave Fault Location Method for Earth Faults Based on Mode Propagation Time Delays of Multi-measuring Points

摘要

A new traveling wave fault location method for earth faults is proposed based on propagation time delays between aerial mode and earth mode acquired by multi-measuring points on transmission line. Using phase-mode transformation theory and the theory of wavelet singularity detection to achieve the algorithm of propagation time difference detection. The Marti model is used to build the system simulation model in the EMTP. The final results show that the method has high reliability and precision.%Przedstawiono nową metodę wykrywania l lokalizacji błędu w linii transmisyjnej bazującą na analizie propagacji fali. Do tego celu wvkorzvstano transformatę falkowa.