What are the steps involved in transformer oil processing?

Transformer oil processing involves several key steps: First, the oil is sampled and analyzed for contaminants and properties. Next, it undergoes filtration to remove particulate matter. Then, the oil is subjected to degasification to eliminate dissolved gases. Following this, dehydration is performed to remove moisture. Finally, the processed oil is tested again for quality assurance before being reintroduced into the transformer, ensuring optimal performance and longevity.