Automation in monitoring is very important part in industrial plants. This system can used to automate the electrical system where system is sensitive to voltage and change in frequency. It also serves for the safety in heavy industrial duty. Automation of cut off increases the reliability of the system.
This kit present the development of a microcontroller based islanding detection for grid with over voltage and over frequency islanding detection algorithms. The system is based on a microcontroller from Atmel AVR family.
The microcontroller monitors the over voltage derived from a set of resistors and controller inbuilt ADC and over frequency from by the interrupt program using LCD for the utility grid and the processed value of voltage and frequency for turning ON/OFF the relay between a grid connected inverter and the utility grid. The microcontroller used in the project is of AVR family which is of 8 bit