The failure or malfunction of many transformers or similar equipment can be directly attributed to the lack of proper control of the level of water vapor entering the equipment. It is essential, therefore, that a very low level of humidity is maintained in the air space in the top of the conservator tank to avoid deterioration of the insulating properties of the cooling medium.
Transformer Breathers provide an economic and efficient means of controlling the level of moisture entering the conservator tank during the change in volume of the cooling medium and/or airspace caused by temperature gradients.
All our Transformer Breathers are filled with a blend of ZEOLITE desiccants, a majority is a molecular sieve desiccant with a blend of color indicating molecular sieve desiccant. The color indicating desiccant is blue when active and will turn to beige when saturated. Once all the desiccant turns beige the breather is fully saturated.