The high-frequency noises lead to obstructing the Digital-Electronic equipment, which further causes erratic behaviour, data corruption, loss of memory,etc. With the help of out isolation transformers, you can eliminate such noises and attenuates the spikes to minimum values. You can ensure complete protection against such disruptions.
Symmetrical characteristics allow noise attenuation from both sides.
No impedance matching required.
No need for extra filter circuits.
Can be used where different groung potential exists or the groung of the equipment cannot be earthed.
No Secondary effects like resonance etc., as with filters.