What are the different types of power transformer oil?

The different types of power transformer oil include mineral oil, which is derived from refining crude oil and is commonly used due to its good electrical properties and excellent heat transfer capabilities; synthetic ester oil, which is made from renewable resources and offers enhanced fire resistance and environmental benefits; and silicone oil, recognized for its high dielectric strength and thermal stability, making it suitable for use in extreme conditions. Additionally, there are natural ester oils, which are derived from vegetable oils, providing ecological advantages in terms of biodegradability and reduced environmental impact. Each power transformer oil type has specific applications depending on factors such as temperature range, environmental considerations, and fire safety.