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This paper presents an accurate algorithm for locating faults on a series-compensated line. It applies two-end currents and one-end voltage and thus can be applied with current differential protective relays. The algorithm applies two subroutines and the procedure for selecting the valid subroutine. The algorithm has been evaluated using the fault data of ATP-EMTP versatile simulations of faults on a series-compensated transmission line. The presented example shows the validity of the presented algorithm and its high accuracy.
Date of Conference: March 29 2010-April 1 2010