The isolation transformers are transformers that transfer electrical power from the source to the load by galvanically isolating the load from the power, thus completely segregating the connected load from the incoming supply. They are capable of preventing the noise, harmonics, and other power surges from being getting transferred from supply to the load.
The On-Line UPS provides uninterrupted power supply to the connected loads and thus protect them from power outages and make connected loads keep working continuously without fail. The On-Line UPS provides clean power at the output to let the load perform properly without malfunctioning.