A new approach for fault location problem on power lines

In most traditional approaches, fault locations have been detected through the use of lumped models. Since these models do not represent the capacitance of the transmission lines, significant errors are generally encountered in exact location of faults. The authors suggest a novel technique based upon the distributed model of power transmission lines to overcome the problems encountered in traditional approaches. This approach considers the effects of capacitance explicitly and therefore enables the detection of faults in transmission lines more precisely. The proposed method can calculate a fault location even for a zero fault inception angle. It requires a lower rate of sampling frequency. The maximum error of the method is less than Dx/2 where Dx is the distance between two consecutive points along the transmission line at which the values of the new function are calculated