12-11-2014, 12:18 PM
Abstracts: Electricity must require for our life. Life is inevitable without electricity. Today electricity is used in each and every sector. The demand for electricity is increasing every day and frequent power cuts is causing many problems in various areas like industries, hospitals and houses. This project becomes very much useful in the place or rural area which is suffering from electricity problem or there is not availability of grid line for electricity connection. This project provides uninterrupted power supply to the load, by the supply from any of the sources out of 3 power supply such as AC mains, D.C battery and solar panel automatically. In this project invert is a main part for converting DC from the solar through the battery to AC to the load. In this project UPS system is used to provide uninterrupted power supply to the load with the help of microcontroller. Using microcontroller we are choosing any of the power supply from the above mentioned power supply at a time. The current status of power supply which is applied to load is also displayed on an LCD screen.