Underground Cable Fault Detection Using Iot

Abstract

Nowadays, underground cables are facing huge variety of faults due to weather conditions, wear and tear, rodents etc. Determining the fault source is challenging and entire cable could be taken out from the ground to check and fix faults. The project work’s intention is to detect the location of fault in underground cable lines from the base station in km using Node MCU and AT89S52. To find the location of a fault in the cable, the cable must be tested for all the faults. This system uses the simple concept of Ohms law. The current would vary depending upon the length at which fault on the cable is detected. Whenever the fault occurs in underground cable it becomes difficult to find the exact specific location of the fault so that the process of repairing that specific cable can be conducted. The proposed system finds the exact location of that fault. The system is then modeled with a set of resistors representing cable length in km and generation of the fault is done by a set of switches placed at every known distance to cross check the accuracy of the system. When a fault is detected, the voltage across series resistors varies accordingly, which is then transferred to an ADC to develop precise digital data for a programmed microcontroller that further displays fault location in distance. A 16X2 LCD interfaced with the microcontroller is used to display the fault location.