What are the advantages of ester-based transformer oil?

Ester-based transformer oil offers several advantages over traditional mineral oils. Firstly, it has a higher flash point, enhancing fire safety. Secondly, it is biodegradable, reducing environmental impact in case of spills. Additionally, ester oils have better thermal conductivity and can operate at higher temperatures, improving transformer efficiency. They also exhibit excellent dielectric properties, which contribute to enhanced insulation performance and longevity of the transformer. Overall, ester-based oils provide a more sustainable and safer alternative for transformer applications.