Remote monitoring of a distribution transformer

Abstract

The main objective of this project is to develop a simple low cost microcontroller based remote distribution transformer monitoring system using wireless technology which acquires key transformer parameters like temperature, voltage and load current using various sensors to display the real-time values on LCD and forwards them to a cell phone in a remote location by SMS. This project was developed by using Arduino board with ATMEGA328 Microcontroller, SIM 900 GSM Module, LCD display, voltage sensor (PT), current transformer (CT), a thermistor as temperature sensor and a GSM based communication network which covered almost every nook and cranny of the country. The preliminary level of fault or abnormality details was reported to the pre-assigned operator through an SMS service. The circuit model was set up and has been working satisfactorily. This embedded system can be very useful to the electricity supply authorities to monitor their transformers at remote locations without being physically present there.