What is one method used to cool transformers?

One common method used to cool transformers is air cooling. This method involves using fans or convection to facilitate the circulation of air around the transformer, helping to dissipate heat generated during operation. As electricity flows through the transformer, losses occur due to resistance, creating heat that needs to be managed to maintain the efficiency and longevity of the equipment.

Air cooling is practical and cost-effective, making it a widespread choice for smaller transformers or those used in environments where high cooling capacity is not as critical. It relies on the natural movement of air and the transfer of heat from the transformer to the surrounding environment.

In contrast, water cooling involves using water to absorb heat from the transformer, which can be more effective in larger installations but may require additional infrastructure for water supply and drainage. Gas cooling, while used in specific circumstances, is less common for standard transformers. Steam cooling is typically not a method employed for cooling transformers as it introduces additional complications and safety concerns.