What determines the oil capacity of a transformer?

The oil capacity of a transformer is determined by several factors, including the transformer’s design, size, and cooling requirements. Specifically, the volume of the core and windings, the type of insulation used, and the cooling method (such as oil-immersed or air-cooled) play critical roles. Additionally, regulatory standards and operational conditions influence the required oil capacity to ensure effective heat dissipation and insulation performance.