How does moisture affect transformer oil?

Moisture in transformer oil significantly impacts the performance and longevity of the transformer. It reduces the oil’s dielectric strength, increasing the risk of electrical breakdown and failures. Higher moisture content can lead to the formation of acids, which can corrode internal components and degrade insulation materials. Additionally, moisture in transformer oil can facilitate the growth of bacteria and fungi, potentially causing further contamination and operational issues. Effective moisture control is crucial for maintaining the reliability and efficiency of transformers, highlighting the importance of regular monitoring and maintenance of transformer oil to manage moisture levels effectively.