Review on Detecting and Locating Faults in Underground cable Using PIC Microcontroller

Today’s generation is based on automation and demanding fastest response. In power system many expensive component is used. The underground link is one of the vital part in electrical framework. Due to some reasons fault occurs in underground cable. Since it is hard to discover the correct area of that blame, the primary point of this venture is to decide the right separation of underground link blame from base station in kilometers. In existing system different microcontrollers 8051 series are used. The proposed framework is to locate the correct area of the blame in underground link by utilizing PIC microcontroller 18F4520.In this project we are used the concept of Ohms law that is at the point when a low DC voltage is connected at the feeder end through an arrangement resistor implies Cable lines, then current would change contingent on the area of blame in the link. On the off chance that there is a short out (Line to Ground), the voltage crosswise over arrangement resistors changes as needs be, which is then encouraged to an ADC to create exact advanced information which the modified in PIC small scale controller would show in kilometers