What is an oil-immersed transformer? What are the advantages of oil-immersed transformers?

2025,08,29

As a key transformer category, oil-immersed transformers demonstrate exceptional performance and reliability in the power industry through their unique design, structure, and material selection.

As a professional manufacturer, Hubei Jutai continuously innovates to improve product efficiency and environmental performance, providing high-quality Oil-immersed Transformer solutions to customers worldwide.

Below, Jutai will provide a detailed introduction to the advantages of oil-immersed transformers. Interested users are welcome to contact us for product details. Don't miss out on this high-quality transformer replacement.

Oil-type transformers (also known as oil-immersed transformers) are Power Transformers that use insulating oil as a cooling and insulating medium. They are widely used in power transmission and distribution systems, industrial power generation, and new energy projects.

Their core operating principle is to achieve voltage conversion through electromagnetic induction, while relying on the oil medium for efficient heat dissipation and insulation protection, ensuring stable operation of the power system.

Core Advantages of Oil-Immersed Transformers

1. Excellent Heat Dissipation

Insulating oil has a higher heat capacity and thermal conductivity than air, allowing it to quickly absorb and transfer heat generated during transformer operation. This makes it particularly suitable for industrial applications requiring long-term, high-capacity power supply.

2. Excellent Insulation

Insulating oil not only provides cooling but also significantly improves the transformer's dielectric strength. The oil medium effectively protects internal components from air, preventing oxidation and moisture corrosion, while also suppressing arcing and partial discharge.

3. High Reliability and Long Service Life

Thanks to the oil's excellent protective and cooling properties, the internal components of oil-immersed transformers, such as the windings and core, can operate at lower operating temperatures, significantly slowing material aging.

4. Strong Overload Capacity

Compared to dry-type transformers, oil-immersed transformers have superior short-term overload capacity. The oil's thermal stability enables the transformer to withstand loads exceeding its rated capacity for short periods without permanent damage.

5. Continuously Improving Environmental Performance

These transformers use biodegradable insulating oil (such as vegetable ester oil), significantly reducing their environmental impact while maintaining excellent performance. Even if a leak occurs, it will not cause long-term pollution to the soil and water sources.

Conclusion

As a vital component of power systems, oil-immersed transformers continue to play a key role in various applications with their exceptional performance and reliability. With continuous technological advancements, particularly the development of environmentally friendly transformers, this traditional equipment is experiencing new vitality.

Choosing Hubei Jutai's oil-immersed transformers means not only choosing a high-quality product, but also choosing a long-term, reliable partner. We look forward to providing you with professional power solutions and jointly promoting development and innovation in the energy industry.

Author:

Mr. jiawenhan

E-mail:

JT13797437282@gmail.com

Phone/WhatsApp:

+86 13797437282