SUBSTATION MONITORING AND CONTROL

As the complexity of distribution network has grown automation of substation become a need of every utility company to increase its efficiency and to improve the quality of power being delivered. The purpose of this project is to acquire the remote electrical parameters like voltage, current and frequency and send these real time values to the microcontroller and make them display on the LCD display along with temperature at power station. It is also designed to protect the electrical circuitry by operating an electromagnetic relay. This relay gets activated whenever the electrical parameters exceed the predefined values. The Relay can be used to operate a circuit breaker to switch off the main electrical supply. And also it is designed to send alerts whenever the circuit breaker trips or whenever the voltage or current exceeds the predefined limits. When we give supply to the system all the sensors start sensing the current, voltage, frequency and temperature and update all the real time values to the microcontrollers well as shows on the display. It compares an all the real time values with the pre-defined values, 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. If the fault exists then relay isolates the loads from the rest of the system. In the meantime, comparison goes on as before, if the fault gets cleared relays reconnect the loads with the rest of the system