what is the function of isolation transformer in ups?

An isolation transformer in an uninterruptible power supply (UPS) serves to separate the output power from the input power source, providing electrical isolation. This function enhances safety by preventing direct electrical contact between the UPS and the connected load. Additionally, it helps to reduce noise and voltage spikes, improving the quality of the power supplied to sensitive equipment. Overall, the isolation transformer ensures a stable and safe power environment for critical devices.