Fault location is a process aimed at locating the occurred fault with the highest possibly accuracy. Fault locator is mainly the supplementary protection equipment, which apply the fault-location algorithms for estimating the distance to fault.
Most of the faults occur when moisture enters the insulation. The paper insulation provided inside the cable is hygroscopic in nature. Other causes include mechanical injury during transportation, laying process or due to various stresses encountered by the cable during its working life.
The proposed system is designed to track the exact location of the fault occurred in the cable. This project uses the Ohms Law concept, when a low voltage DC is applied to the feeder end through a series resistor, then the current would differ based on the location of fault occurred in the cable.