what is pour point of transformer oil?

The pour point of transformer oil is the lowest temperature at which the oil remains fluid and can flow. It is a critical property for ensuring the effective operation of transformers, especially in cold environments. A low pour point indicates that the oil can maintain its insulating and cooling properties without solidifying, which is essential for the reliability and efficiency of electrical equipment. Typically, transformer oils have a pour point below -20�C to ensure optimal performance.