What are the main advantages of oil-immersed transformers?
Time：2025-02-21 Auther：ZTelec-www.ztelectransformer.com
An oil-immersed transformer is a transformer whose windings use insulating oil as the insulating medium. Since the electrical and mechanical strength of insulating oil are much higher than that of air and it has excellent insulation properties, the cooling method of oil-immersed transformers can flexibly choose natural cooling, forced air cooling or forced air cooling. Its windings are impregnated with insulating oil as the insulating medium, which not only saves a lot of energy, but also has been widely used in power systems.
What are the main advantages of oil-immersed transformers?
1. High insulation strength
Oil-immersed transformers use insulating oil to impregnate the insulating material, which enables them to provide higher insulation strength. Insulating oil not only has good electrical insulation properties, but also effectively isolates the internal windings of the transformer from the influence of the external environment, thereby preventing the generation of arcs and significantly reducing the risk of safety accidents such as fire. At the same time, the presence of insulating oil can also protect and extend the life of the transformer, further improving the overall reliability and safety of the equipment.
2. Excellent heat dissipation performance
The heat dissipation performance is a highlight of oil-immersed transformers. The transformer will generate a lot of heat during operation. And the insulating oil, as a heat dissipation medium, can efficiently conduct the heat generated by the windings and the core, ensuring that the transformer can still operate stably in a high temperature environment. This excellent heat dissipation performance not only reduces the failure caused by poor heat dissipation, but also improves the operating efficiency and stability of the transformer. In addition, oil-immersed transformers usually use a sealed oil tank, which can effectively prevent the intrusion of external impurities and moisture, further ensuring the safe operation of the equipment.
3. Lower noise and vibration
Insulating oil can effectively damp mechanical vibration, making oil-immersed transformers have lower noise and vibration levels. This feature not only reduces interference with the surrounding environment, but also provides a quieter working environment for operators.
4. High reliability and durability
Oil-immersed transformers have a simple design structure and fewer parts, so they have higher reliability and durability. At the same time, insulating oil can protect and extend the life of the transformer, allowing it to maintain stable performance during long-term operation.
5. Strong adaptability
Oil-immersed transformers are suitable for a variety of environmental conditions and can operate stably under different temperatures and humidity, showing high adaptability. Whether it is high temperature, high humidity or other harsh environments, oil-immersed transformers can maintain good performance.
6. High efficiency
Oil-immersed transformers are generally more efficient than dry-type transformers. This is because insulating oil is an excellent insulating material that can effectively reduce energy loss, thereby improving the overall efficiency of the transformer.
7. Easy maintenance
The design structure of oil-immersed transformers is relatively simple with fewer parts, which makes its maintenance more convenient. Regular maintenance operations such as checking the oil level and cleaning the oil tank can ensure the normal operation of the transformer and reduce maintenance costs.
Oil-immersed transformers play an indispensable role in the power system due to their significant advantages such as high insulation strength, excellent heat dissipation performance, low noise and low vibration, high reliability and durability, strong adaptability, high efficiency and easy maintenance. These advantages together lay the foundation for the important position and value of oil-immersed transformers in the power system.
