What is the role of insulating oil in a transformer?

The role of insulating oil in a transformer is to provide electrical insulation and cooling. Insulating oil prevents electrical discharges between conductive parts, ensuring safe operation. Additionally, it absorbs heat generated during the transformer’s operation, dissipating it to maintain optimal temperature levels. This dual function of insulating oil is critical for the reliability and longevity of power transformers, enhancing their performance and safety.