Its positive voltage transformer is used to isolate the output of ups. The advantages of isolation transformer applied in ups are as follows:
1. It can reduce the zero to ground voltage and optimize the ups terminal power supply network. The isolation transformer installed in the inverter output of UPS can isolate the electrical connection between input and output, thus effectively reducing the zero to ground voltage at the output end.
2. It can filter out the harmonics at the load end and improve the quality of power supply. The output isolation transformer can filter out a large number of low-order harmonics at the load end, reduce the high-frequency interference, and greatly attenuate the high-order harmonics. The use of power isolation transformer can effectively restrain the noise interference entering the AC power supply and improve the electromagnetic compatibility of the equipment.
3. It can enhance the ability of overload and short circuit protection and protect the load and UPS host. When UPS is in normal operation, if it encounters large short-circuit current, isolation transformer will delay the impact damage of short-circuit current on load and inverter, which can protect load and UPS host.