What are the benefits of using synthetic ester based transformer oil in power transformers?

The benefits of using synthetic ester based transformer oil in power transformers include improved fire safety due to higher flash points, enhanced biodegradability, and better thermal stability. Synthetic esters also provide superior oxidation resistance, which extends the lifespan of the transformer. Additionally, they have lower environmental impact in case of leaks, making them a more sustainable choice for modern power transformer applications.