Abstract
This paper proposes a new method for fault location on electric power transmission lines. The problem is here approached by identifying from pre-fault records an equivalent circuit for the far end of a transmission line. Based on the assumption that this equivalent is valid for the first few post fault cycles the position of the fault is calculated by solving the system of nonlinear equations, which can be formulated for each type of fault, using recorded fault waveforms. These equations are solved by applying Newton-Raphson technique. The method is finally examined by analysing two computer simulated faults on a 130 kV transmission line.
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