Research of Fault Location Algorithm for Data Metering System Based on Digital Transformers

The usage of the innovative primary converters requires the development of new methods and algorithms of relay protection and automation, including the fault location algorithms taking into account the features of these primary converters and digital current and voltage transformers at all. The developed algorithm is applied to conduct the estimation of the distance to a fault (short circuit point) using one-sided measurement of emergency mode parameters. The authors provide the results of the research on the influence of the distorting factors on the fault location accuracy conducted on the simulation models. The special program in MATLAB was developed for the research of numerous distorting factors and conducting a large number of experiments.