Investigating the performance of transformer using insulating fluids

Transformer life management is an essential part of a modern power operation system. The popularity of mineral transformer oil is due to availability and low cost, also an excellent dielectric and cooling medium. The exploitation of petroleum oil is running out of demand and in the near future, oil scarcity exists. To be more proficient in the operation of transformer, the vegetable oils should be converted in to superior dielectric fluids. With the development of new insulation materials, vegetable oil was the best substitute for mineral oil - has gradually been widely used in the liquid insulation of transformers. In liquid-filled transformers, the insulating liquid plays two important functions by providing the electrical insulation (in combination with a solid such as cellulose) and removing the heat generated by the windings. This project is proposed to analyze the performance of transformer (Efficiency and Voltage regulation) by using various insulating fluids, to find suitable oil for improving the efficiency of transformer under various tests, to improve the efficiency of transformer, optimum use of available resources and biodegradable choice. Moreover vegetable oil could be an appropriated choice to environmental, safety and health problems; it reduces the exploitation and end-life costs of transformers. Based on the test results obtained, and a recommendation is imparted to replace mineral oil with vegetable oils.