What are the uses of transformer oil?

Transformer oil is primarily used for insulation and cooling in power transformers. It serves to dissipate heat generated during operation, maintaining optimal temperature levels. Additionally, transformer oil provides electrical insulation, preventing arcing and short circuits. It also acts as a medium for the removal of moisture and contaminants, enhancing the longevity and reliability of the transformer. Furthermore, transformer oil can help in detecting faults through dissolved gas analysis.