What is the maximum oil temperature in a transformer?

The maximum oil temperature in a transformer is typically around 95�C (203�F) for mineral oil-based transformers. This temperature limit is crucial to ensure the effective insulation and cooling properties of the transformer oil. Exceeding this maximum oil temperature can lead to accelerated aging of the oil, reduced dielectric strength, and potential failure of the transformer insulation system. Regular monitoring is essential to maintain optimal operating conditions.