(UPS), is Associate in Nursing electrical instrumentality that has emergency power to a load once the input power supply fails or drops to Associate in Nursing unacceptable voltage level. UPS contains chiefly3 basic elements, a battery, a charger, Associate in Nursingd an electrical converter. the first role of UPS is to supplyshort power through out surprising power outages and additionally react quickly to an influence surge or fluctuations. the most3 general classes of UPS area unit off-line (standby), on-line (no-break) and line-interactive.
UPS==uninterruptible power supply>>