This paper presents an analytical technique for fault location in distribution systems in presence of distributed generation (DG). The presence of DG changes the nature of power flow from unidirectional to multidirectional. Therefore, the accuracy of impedance-based fault location methods will be affected by the presence of DG. The proposed technique is a modification of impedance-based methods to be suitable for systems containing DG based on voltage and current measurements at the power substation. To evaluate this technique, it is implemented on an 11 kV feeder using ATP/EMTP package. The results achieved ensure the validity and accuracy of the technique
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