What are the essential facts about transformer oil?

Transformer oil, also known as insulating oil, is a critical component in power transformers. It serves as an insulator, preventing electrical discharges, and dissipates heat generated during operation. Key facts include its high dielectric strength, low viscosity for effective circulation, and resistance to oxidation. Additionally, transformer oil must be periodically tested for moisture content, acidity, and furan levels to ensure optimal performance and longevity of the transformer. Proper maintenance of transformer oil is essential for reliable transformer operation.