What is FR-3 transformer oil and its applications?

FR-3 transformer oil is a natural ester-based dielectric fluid derived from vegetable oils, specifically designed for use in power transformers. Its applications include enhancing fire safety due to its high flash point, improving environmental sustainability, and providing excellent insulation properties. FR-3 oil is particularly suitable for use in transformers located in urban areas or sensitive environments, as it is biodegradable and non-toxic, reducing the risk of environmental contamination in case of leaks.