What are oil-filled distribution transformers?

Oil-filled distribution transformers are electrical devices that utilize mineral oil as an insulating and cooling medium to transfer electrical energy while providing voltage transformation. These transformers are commonly used in power distribution networks to lower voltage levels for safe delivery to industrial, commercial, and residential users. The oil not only serves as an effective coolant but also helps to insulate the internal windings and core from electrical faults. The design of oil-filled distribution transformers allows for efficient heat dissipation, enhancing performance and longevity. Regular maintenance, including oil cleaning and testing, is crucial for ensuring reliability and minimizing the risk of transformer failures in the field.