Transformer liquids provide dielectric strength and cooling for a transformer. A transformer is designed for the liquid to maintain dielectric protection against high voltages, but the optimal level must account for expansion and contraction based on temperature. As the temperature of the transformer goes up, the fluid expands. As the temperature of the oil goes down, it contracts.
Watch and listen as Bob Rasor, Director of Transformer Services, explains the importance of liquid levels in more detail. Read More
June 24, 2022