Double conversion UPS means that the inverter is connected in series between the AC input and the load, and the power supply continuously transmits power to the load with the help of the inverter.
Principle: When the utility power is normal, the utility power is transmitted to the load through the rectifier and inverter; when the utility power is abnormal, the accumulator transmits power to the load through the inverter.
Advantages: Double conversion UPS is the mainstream UPS power supply products, with good characteristics, high voltage stability and frequency stability, strong functionality, with hot backup access and parallel redundant access.
Disadvantages: When the capacity is less than 10kVA following, its whole efficiency is not high, conversion at 85%.
