What is an oil-cooled transformer?

An oil-cooled transformer is a type of transformer that uses oil as a coolant and insulating medium to dissipate heat generated during the electrical transformation process. The oil not only serves as a coolant, effectively transferring heat away from the core and windings, but also provides electrical insulation between the live components and the transformer housing. This configuration allows for higher efficiency and capacity compared to air-cooled transformers, as it can manage higher voltages and thermal loads. Oil-cooled transformers are commonly used in substations and industrial applications where high capacity and durability are required. Regular maintenance, including oil regeneration and cleaning, is essential to ensure optimal performance and longevity of the oil-cooled transformer.