1. Composition of transformer oil

Transformer oil is a mineral oil, which is a mixture of many different molecular weights of hydrocarbon molecules, alkane, cycloalkane and a small number of aromatic hydrocarbons.

2. The role and grade of transformer oil

Transformer oil for insulation oil of oil-immersed transformers. Transformer oil not only has insulation effect, but also has the role of heat dissipation.

Transformer oil is divided into No. 25 oil and No. 45 oil according to its freezing point. The freezing point of No.25 oil is minus 25℃; The freezing point of oil 45 is minus 45℃.

No. 25 transformer oil is paraffin based oil, and No. 45 transformer oil is naphthenic oil. In the past, No. 45 transformer oil was imported from abroad, and now Xinjiang Karamay Refinery can also produce it.