Substation Monitoring and Control System with Voice Alerts

Abstract

The purpose of this paper is to acquire the remote electrical parameters like voltage, current and frequency and send these real time values over network using phone along with temperature at power station. This is also designed to protect the electrical circuitry by operating a relay. This relay gets activated whenever the electrical parameters exceed the predefined values. The relay can be used to switch off the main electrical supply. User can send commands in the form of SMS messages to read the remote electrical parameters. This system also can automatically update the real time electrical parameters periodically (based on time settings). in the form of SMS. This system can be designed to send SMS alerts whenever the relay trips or whenever the voltage or current exceeds the predefined limits. This makes use of a microcontroller, as this is a prototype of the proposed project, for demonstration purpose we have used Arduino Uno here. The controller can efficiently communicate with the different sensors being used. When we give supply to our prototype all the sensors start sensing the current, voltage, frequency and temperature and update all the real time values to the server as well as show on the display. If any of the values exceeds pre-defined values, it sends a fault alert to the relay and buzzer as well as update it on the display.