How does the transformer oil purification machine work?

A transformer oil purification machine works by processing transformer oil through several stages to remove contaminants like moisture, dissolved gases, and solid particles. The machine first heats the oil to lower its viscosity, improving filtration efficiency. It then uses filters to remove solid impurities, while a vacuum dehydration unit extracts moisture and dissolved gases. After purification, the oil is recirculated back into the transformer, restoring its insulating and cooling properties.