What is the role of cellulose insulation in oil-filled power transformers?

The role of cellulose insulation in oil-filled power transformers is crucial for electrical insulation and thermal management. Cellulose, derived from paper, provides excellent dielectric properties, allowing it to withstand high voltages. Additionally, it absorbs moisture, which helps maintain the integrity of the transformer oil. This combination of cellulose insulation and transformer oil enhances the overall performance and longevity of power transformers, ensuring reliable operation under various conditions.