Transformers require dried and filtered oil. During its use, the insulated oil absorbs moisture and is contaminated with soot, dirty particles, aging products. Even unused oil is not clean enough, as it may have absorbed air moisture or polluted the barrel in which it was stored. The efficiency of the oil as an isolating material is greatly reduced with increasing moisture. The transformer oil filtration system is therefore an important one that eliminates solid particles, dissolved gasses and dissolved water.
Like this book? You can publish your book online for free in a few
minutes!