International Journal of Scientific & Technology Research
Now-a-days, the use of Auxiliary Power Supply (APS) systems to energize low power rating appliances (e.g. televisions, water dispensers, etc.) and lighting (e.g. CFL lamps) has become pervasive in countries where long power rationing schemes are applied. Although, the existing APS systems offer overload protection, it cannot be directly connected to the existing electric circuit unless heavy loads such as refrigerators, microwaves, washing machines, electric water heaters, etc. are disconnected in the absence of the grid.