Abstract: Grid synchronization failure can cause complete black out. So, there is always a need for a system that can sense any abnormalities and take actions accordingly to prevent black outs. A grid is connected with several power generating units like thermal, nuclear, wind etc. to deliver power to the load. In India, the generating units have to deliver power according to the Indian Electricity Grid Code, 2010 which states that the variation in voltage should be within the limit of ±5% and that for the frequency should be within ±3%. If any value higher/lower is detected, then that particular feeder should be disconnected from the grid temporarily in order to protect the grid. In this paper, we will be discussing about a system based on the microcontroller, that will be used to monitor the variation in voltage and frequency of the any external supply source, and automatically disconnects the supply source from the load.
|
DOI:
10.17148/IJARCCE.2022.11304
