Insulating oil or transformer oil is a refined mineral oil. This highly refined mineral oil has excellent electrical insulating property in comparison with other mineral oils. They (highly refined mineral oil) are stable at high temperature. They are used in different fields like in suppress corona, high voltage switches, fluorescent lamp ballasts, high voltage capacitors and also in the circuit breakers.
Different functions are performed with transformer oils like to suppress corona, for insulation process and also for arcing. They are served as coolant too. They are stressed in mechanical and electrical stress when a transformer is under the process. These types of oil (transformer oil) are used in those operations. Transformer oils purification process hold on a high temperature for the contamination of chemical interactions and reactions.
There is a gradual change of rendered process catalyzed and insulated by a high operating system. Chemical properties of original transformer get changed gradually for the intended purpose. Electrical transformers and oil in large transformers is tested for the different chemical and electrical properties. Electrical and chemical properties are tested in periodic manner. There are several different conditions applied on the filtration process.
Many of the operated and processed oils are used for the lubrication process. There is a better dielectric strength and residual content of water is handled by transformer oils. They can improve the properties of entire operating system with the property of insulating fluids. Required and beneficial qualities of these oils must be secured during transformer oil purification. Specific necessary qualities of insulating fluids must be maintained on the level of field operation.
Optimum performance is assured with initial impregnation and filling of factory by these secured and needed properties. These fluids also work as dielectric material and also as an effective coolant. Several technologies are introduced to treat mutual inductor oil, insulating oil, switch oil and also for the transformer oil.