Silica Gel Breather

This device serves to avoid that the moisture and particulate matter go through the transformer oil during the oil expansion process. It is an interface between the transformer and the external environment.


  • The device is constituted by a tank with a drying agent.
  • The drying agent most widely used is the silica gel and it has the ability to absorb up to 40% of its own weight in water, is a product that can be regenerated when saturated, is achieved on two gel presentations, Blue silica with chloride cobalt as color indicator and in orange gel indicating silica, this does not contains cobalt chloride, is a product free of contamination.
  • The filters are usually conventional or auto-recharging maintenance-free.

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