What are the specifications of FR3 transformer oil?

FR3 transformer oil is a natural ester-based dielectric fluid with several key specifications. It has a high flash point of approximately 320°C, a dielectric strength of around 30 kV, and a viscosity of about 30 cSt at 40°C. FR3 oil is biodegradable, non-toxic, and offers excellent thermal stability, making it suitable for use in power transformers. Additionally, it has a high fire point, enhancing safety in transformer applications.