Abstract: There are several proposed or developed systems to locate faults on power transmission Lines. The conventional systems employ methods that are very different from the proposed one. They are based on transient detection on phase cables and make the measurements only at the edges of the transmission line to estimate the fault position. These systems do not perform well with branched transmission lines because of line reactions at the branching points, and neither with parallel lines because of the mutual coupling of adjacent circuits. Here, we propose a new method to locate faults on transmission towers. Line-to-ground Or line-to-line faults induce voltages, which on partially to ground through the towers. In the towers closest to the fault position, the voltages are greater and this behaviour can be used to locate the fault
Keywords: Sensors; X Bee.