Using Transient Signal Parameters to Improve the Reliability of Traveling Wave Fault Localition

Abstract

The aim of the work is to obtain additional information about the place of occurrence of traveling waves during switching in power lines from transient signal modal structure. The results of simulation of the transient signal by different reasons for switching are considered. The mechanism of formation of high-frequency and low-frequency mode oscillations is shown. It is shown that high-frequency mode oscillations are formed only with the interference of traveling waves penetrating through the switching point. It is shown that different transient signal mode structures are formed to the left and to the right of the switching point. The application of wavelet analysis to determine the period of mode oscillations is considered. The efficiency of wavelet analysis for determining the beginning of a transient signal is shown.