IoT BASED UNDERGROUND CABLE FAULT IDENTIFICATION

Abstract : The project is intended to detect the location of fault in underground cable lines from the base station to exact location in kilometers using an NODEMCU micro controller kit. In the urban areas, the electrical cable runs in undergrounds instead of overhead lines. Whenever the fault occurs in underground cable it is difficult to detect the exact location of the fault for process of repairing that particular cable. The proposed system finds the exact location of the fault. This system uses an NODEMCU microcontroller kit and a rectified power supply. Here the current sensing circuits made with a combination of resistors are interfaced to NODEMCU micro controller kit to help of the internal ADC device for providing digital data to the microcontroller representing the cable length in kilometers. The fault creation is made by the set of switches. The relays are controlled by the relay driver. A 16x2 LCD display connected to the microcontroller to display the information. In case of short circuit the voltage across series resistors changes accordingly, which is then fed to an ADC to develop precise digital data to a programmed NODEMCU micro controller kit that further displays exact fault location from base station in kilometers. Whenever a fault occurs in a cable the buzzer produce the alarm to alert and to take an immediate action by field workers.

Keyword: Underground Cable Fault Detection, Node MCU Microcontroller, ADC, Current Sensing Circuit, Fault Location Monitoring, LCD & Buzzer Alert.