The insulating oil in the oil-immersed transformer plays a vital role.
First of all, insulation is one of its most important functions. Insulating oil has good insulation properties and can form an effective insulating layer between the transformer windings and conductive parts such as the core to prevent current leakage and short circuit. It can withstand high voltage and ensure that the electrical insulation inside the transformer is safe and reliable. Since the transformer will generate a higher voltage during operation, without good insulation, it will cause serious electrical accidents, and the presence of insulating oil provides an important guarantee for the safe operation of the transformer.
Secondly, the heat dissipation effect cannot be ignored. The transformer will generate a lot of heat when working. If this heat cannot be dissipated in time, it will cause the transformer temperature to rise, affecting its performance and life. Insulating oil has good thermal conductivity and can quickly transfer the heat generated inside the transformer to the transformer casing, and then dissipate the heat to the surrounding environment through heat dissipation devices such as radiators. This can effectively reduce the temperature of the transformer and ensure that it operates within the normal temperature range.
In addition, insulating oil can also play the role of arc extinguishing. When the transformer fails, such as internal short circuit, an arc will be generated. Insulating oil can quickly extinguish arcs, prevent the fault from further expanding, and protect the safety of the transformer and the entire power system.
At the same time, insulating oil can also play a role in moisture-proofing. It can prevent moisture in the air from entering the inside of the transformer and prevent components such as windings and cores from getting damp, thereby ensuring that the insulation performance of the transformer is not affected.
Finally, insulating oil can also play a role in protecting the metal parts inside the transformer. It can form a protective film on the metal surface to prevent metal parts from being oxidized and corroded, thereby extending the service life of the transformer.
In short, the insulating oil in the Oil-immersed transformer has many important functions such as insulation, heat dissipation, arc extinguishing, moisture-proofing and protection of metal parts. It is one of the key factors to ensure the safe, reliable and efficient operation of the transformer.
