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This paper presents a novel approach to design of a centralized substation level protection aimed at determining the faulty feeder in a distribution network. In opposite to phase-to-ground faults in the transmission networks (HV), impedance of phase-to-ground fault-loops in MV distribution networks is usually high. From all of these reasons, detection of ground-fault and determination of a faulty...
This paper presents accurate fault location algorithm for series compensated lines. Use of two-end current and voltage signals with a more general case of unsynchronised measurements is considered. Two ways of synchronisation of measurements are presented. The subroutines of the developed algorithm are formulated with use of the generalised fault loop model, leading to compact formulae. High accuracy...
This paper presents a new method for locating faults on three-terminal power lines. Estimation of a distance to fault and indication of a faulted section is performed using three- phase current from all three terminals and additionally three- phase voltage from the terminal at which a fault locator is installed. The fault location algorithm consists of three subroutines designated for locating faults...
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