1, eps emergency power supply
EPS emergency power supply is based on the fire facilities, emergency lighting, accident lighting and other primary load power supply equipment needs and power supply equipment. The product consists of mutual casting device, automatic charger, inverter and battery packs and so on. When the AC power grid is normal, the inverter does not work, and the important loads are supplied with power through the mutual-throwing device. When the AC power grid is disconnected, the mutual-throw device will immediately switch to the inverter power supply. When the grid voltage is restored, the mutual-throwing device will switch back to the AC grid power supply.
2, the function of the UPS
UPS is when the normal AC power supply is interrupted, the battery output DC power supply into AC continuous power supply power equipment, is a kind of containing energy storage devices, inverter as the main component of the constant voltage and frequency of the uninterruptible power supply.
UPS is mainly used to provide uninterrupted power supply to a single computer, computer network system or other power electronic equipment. When the utility input is normal, the UPS will be the utility voltage regulator supplied to the load, at this time the UPS is an AC utility voltage regulator, at the same time it is also charging the battery in the machine; when the utility power interruption (accidental blackout), the UPS will be immediately in the machine battery power, through the inverter conversion method to the load to continue to supply 220V AC, so that the load to maintain the normal work and to protect the load of software and hardware from damage. UPS as a protective power supply equipment, its performance parameters are of great significance, is the focus of consideration when purchasing.