Abstract: This paper introduces overhead distribution line fault detection. A device is made which can be installed in homes or any other buildings though which we can detect the fault occurred in that distribution line. Similarly the substation module receives the signal from the homes and in turn signals to switch off the line under the fault. A prototype of the system is made and is running in good condition. The proposed method is based on Radio Frequency communication.

Keywords: Relays, Radio Frequency communication, Circuit breaker, Substation.