Dehydrating breathers are utilised in liquid cooled
transformers. The dehydrating breather removes
practically all moisture from the air which flows
through it into the conservator when the transformer
is cooling down. This has the effect of
largely preventing any reduction of the dielectric
strenght of the insulation due to moist ambient air
and any formation of condensation in the conservator.
Thus the dehydrating breather increases the
operational integrity of the transformer