ATP-EMTP INVESTIGATION OF FAULT LOCATION ALGORITHM APPLYING SIGNALS OF CURRENT DIFFERENTIAL RELAYS OF DOUBLE-CIRCUIT SERIES-COMPENSATED TRANSMISSION LINE

摘要

This paper presents an accurate fault location algorithm for a double-circuit series-compensated lines associated with current differential relays. Use of two-end currents and one-end voltage to fault location has been considered. The algorithm applies two subroutines designated for locating faults on particular line section, and additionally the procedure for selecting the valid subroutine. The developed algorithm has been tested and evaluated using signals taken from ATP-EMTP versatile simulations of faults. The presented sample results of the testing show the validity of the presented fault location algorithm and its high accuracy.