Transformer Breather and Desiccant

Transformer Breather and Desiccant

The function of a breather in the transformer is to filter out the moisture from the air. Breather consists of silica gel which absorbs moisture from the air. When there is overloading on the transformer breather, the winding of the transformer gets heated so the oil in the main tank of the transformer also gets heated. The hot oil started expanding. There is a conservator tank at the top of the transformer which allows adequate space for the expansion of oil. Therefore during the overloading condition the oil move to the conservator tank.

On the transformer breather in normal operating conditions, the oil comes back to the main tank from the conservator tank. Now, there is free space in the conservator tank that is filled with the air. The conservator tank is never completely filled as it has to allow space for expanding oil from the main tank.

The air which is there in the conservator tank is coming from the atmosphere through the transformer breather and breather contains silica gel in it. This silica gel absorbs moisture from the air. The main reason to remove moisture from the air is that the moisture degrades the dielectric strength of the transformer oil.

Desiccant

The desiccant helps to stop the condensation of moisture between the panes. Another use of zeolites is within the dryer component of air-con systems to assist maintain the efficacy of the refrigerant. Desiccants also are commonly accustomed to protect goods in shipping containers against moisture damage.

We recommend that a desiccant get replaced once every three years for open-cycle systems and once every two years for closed-cycle systems. A desiccant may degrade more quickly counting on the environment where it's used. Dew point temperatures offer an honest indication for when to interchange your desiccant

Container Desiccant protects cargo by preventing condensation from occurring in the container. Container Desiccants are manufactured to make safe the cargo from wet damage by preventing condensation in shipping containers (typically referred to as Cargo Sweat, Container Sweat, or Container Rain)