A Comprehensive Survey on Alternating Fluids Used For The Enhancement of Power Transformers

In recent days, the insulating fluids plays an essential role in the design of power transformers, because the performance of the power system is highly depends on the transformers used in the system. Conventionally, the mineral oils are used in the transformers for increasing the cooling effect, but is less biodegradable and has a reduced fire resistant characteristics. So, it is important to identify an alternating insulating oil for enhancing the power transformers. Due to this reason, this research work intends to survey the characteristics of various alternating oils used for the power transformers. In this analysis, the oils and its characteristics have been surveyed with the specific usage. It includes the vegetable oil, ester oil, magnetic oil, silicone gel, and nano fluids. Based on this, the characteristics of the transformer oil can be enhanced by mixing the nano particles with the vegetable oil. Then, the conditional assessment of these oils are validated by using the measures of breakdown voltage, viscosity, dielectric constant, flash point, fire point, and acidity.