What are the technical considerations for name of oil used in transformer?

When selecting the oil used in transformers, key technical considerations include its dielectric strength, thermal conductivity, viscosity, and chemical stability. The oil must have a high flash point to minimize fire risk and low pour point for effective operation in varying temperatures. Additionally, it should possess good oxidation resistance to prolong transformer life and minimize sludge formation. Environmental impact and regulatory compliance regarding the oil’s biodegradability and toxicity are also critical factors.