Transformer Moisture Absorber

Transformer Moisture Absorber

1. The function of transformer moisture absorber:

Absorb moisture from the air that enters the rubber bag and diaphragm of the oil conservator, remove and dry impurities and moisture from the air that enters the transformer oil storage tank due to changes in transformer oil temperature, to prevent the transformer from getting damp and ensure the insulation strength of the transformer oil.

2. The working principle of transformer moisture absorber:

When the transformer expands due to heat, excess air inside the transformer is exhaled; When the transformer oil temperature decreases and contracts, external air is sucked in. When inhaling external air, the transformer oil in the oil storage box filters the external air, and then the silicone absorbs the unfiltered water, preventing the transformer oil inside the transformer from being invaded by water in the external air, keeping its water content within the standard range.

3. Silicone in transformers

Blue, semi transparent, its color changes from blue to light red after moisture absorption. It can be mixed with general fine porous spherical silica gel as an indicator to indicate the degree of water absorption and fullness of the desiccant, mainly used for drying and moisture absorption.

Silicone appears blue before being hygroscopic, and after being placed in a respirator, it has a bright color for easy observation. If the hygroscopic agent absorbs enough water, it becomes saturated and turns pink. The operator on duty can determine whether the silicone gel is deliquescent by changing the color inside the respirator. When more than two-thirds of the silicone is affected by moisture, it should be replaced in a timely manner.