Dielectric oil: key functions and attributes for electrical equipment
Within the industrial oils range we have dielectric oils, which are used as insulating and cooling fluids in transformers and electrical switchgear.
Functions of dielectric oil
A transformer has the main function of raising or lowering the voltage of the electric current that circulates through the electrical distribution system. The active part of the transformer, in order to carry out this function, must be immersed in an insulating fluid: Repsol dielectric oils.
The main functions of dielectric oils are thermal and electrical insulation and to cool the transformer’s metallic components, through convection phenomena.
Dielectric oils are capable of dissipating the heat generated by the resistance of the metal conductors and windings, and channeling it away. Therefore, it must have high dielectric withstand, thermal conductivity, and chemical stability. In addition, it must have good antioxidant properties as it needs to maintain its characteristics for long periods of time.
Characteristics of dielectric oil
For the transformer to operate correctly, it is necessary to guarantee its excellent properties:
In conclusion, dielectric oil plays a multifaceted role in the efficient and safe operation of electrical equipment, contributing significantly to the optimal performance and longevity of the devices.