The direct alternative current is conditioned and supplemented by external power supply known as the Uninterrupted Power Supply (UPS) System. Previously, it was used for computer systems but when its valuable benefits were observed, it found its use in various areas such as factories, cordless phones, motor etc. It can be used for getting long power back up as an inverter. You can choose the size and functions of the UPS depending upon the demand and supply. Critical load shedding and uncertain disruption of power supply can be sorted with good quality UPS.