What are the differences between dry type transformers and oil filled transformers in terms of transformer oil usage?

The differences between dry type transformers and oil filled transformers in terms of transformer oil usage are significant. Oil filled transformers utilize transformer oil for insulation and cooling, which enhances their thermal performance and electrical insulation properties. In contrast, dry type transformers do not use transformer oil; they rely on air or solid insulation materials, making them less effective in heat dissipation and eliminating the risks associated with oil leaks or fire hazards.