Cooling Transformers: Elemental Battle of Oil, Air, and Water Ultimately, there is no universally superior cooling solution. The ideal approach depends on the application, weighing power, environments, space, and maintenance. Oil cooling remains prevalent for larger utility and industrial transformers where reliability and efficiency are paramount. Air cooling suits smaller, indoor applications, prioritizing safety and simplicity. Water cooling tackles extreme loads and tight spaces where performance overrides complexity. Visit us: https://makpowertransformer.com/cooling-transformers-elemental-battle-of-oil-air-and-water/