What is the role of naphthalene in transformer oil for power transformers?

The role of naphthalene in transformer oil for power transformers is primarily as a performance enhancer. Naphthalene contributes to the oil’s thermal stability and improves its dielectric properties, which are crucial for effective insulation and heat dissipation in power transformers. Additionally, naphthalene can help reduce the viscosity of the oil, facilitating better circulation and cooling within the transformer system.