Humidity or moisture can easily damage any product. From electronics to food items, if they not stored with dehumidifier they can be ruined easily while the moisture level increases during storage or in transit. Thus it is inevitable to ignore the importance of desiccant dehumidification.For the purpose of dehumidification inside the packing of a product silica gel white beads are used. These beads soak up water to reach a stable position. They proved to be very effective when it comes to eliminate humidity content through direct absorption. These beads are porous in structure hence the water content directly gets absorbed Continue Reading->
While using transformers, it is highly important that they function properly to yield best results. Transformers can stop functioning because of a variety of reasons. One of the main reasons behind the non-functioning of transformers is failure to control how much moisture is entering the transformer. The presence of excess levels of moisture in the transformer can adversely affect its functioning. To ensure that the transformer is working properly, it is highly essential that the correct levels of humidity are maintained inside the equipment. Low levels of moisture must be ensured in the air space atop the conservator tank. This measure safeguards the insulation function of the cooling medium from the ill-effects of excess moisture.
What are Transformer Breathers?
It is in order to avoid such kinds of problems that transformer breathers are extensively used. A transformer breather works to ensure that the right amount of moisture enters the conservator tank, while the cooling medium undergoes volume changes. Transformer breathers are also needed if airspace changes volume, due to temperature differences.
Transformer breathers are useful in keeping the free air volume atop the conservator tank very dry. This moisture-free atmosphere will help the transformer function better and improve its performance and life.
Silica Gel Blue Beads as Transformer Breather
One of the most commonly used transformer breathers is Silica Gel, which is a high-performance adsorbent. In the market, Silica Gel Blue Beads are the most preferred type of transformer breather. The Silica Gel transformer breather usually consists of an aluminium top and bottom, fitted with a transparent central area filled with Silica Gel. It also has a clear view oil cup. The blue bead Silica Gel is preferred because it changes colour as the adsorption process begins functioning. The changing colour is a good indicator of how well the transformer breather is functioning.
How the Silica Gel Breather works
The working of the Silica Gel breather is explained as follows – At the beginning of the breathing process the air is passed through the Silica Gel breather. The Silica Gel blue beads will absorb all the humidity present in the air and ensure that only dry air will pass on to the transformer. As the Silica Gel absorbs the moisture, its blue colour will change to pink till it becomes saturated. The transformer breathers are also equipped with an oil cup, which collects the dust particles, if any.