Parameter-less fault locator using synchronized/un-synchronized data for overhead transmission line

Abstract

A new fault location algorithm based upon two end synchronized data for high voltage transmission line is proposed which considers arcing fault calculation. In this work least error square (LES) principal is used without considering the line parameters. The least error square principle is used on positive sequence equivalent circuit to calculate the fault distance from the reference bus. This algorithm is simple to understand and easy to implement. since it is independent of line parameter therefore it can be applied to both lumped and distributed transmission lines. This algorithm provide promising results against the variability in fault resistance on the account of two end data. PSCAD transient program is been used to create fault cases along with MATLAB, which calculate fault location. The results shows the effectiveness of the proposed algorithm.