This transformers design accommodates oil expansion caused by heat.

Freely breathing transformers allow air exchange with the environment and are commonly used in applications where conditions are less restrictive or where cost efficiency is a priority. In mining and industrial environments, they are suitable for:

• General-purpose applications with controlled exposure
• Sites where regular maintenance access is available
• Lower-risk environments with moderate operating conditions

Customisation ensures they can still perform reliably in selected mining scenarios.