Introduction to Oil Immersed Transformer
An oil – immersed transformer is a crucial electrical device widely used in power systems. It operates on the principle of electromagnetic induction to change the voltage of an alternating – current electrical supply. The transformer has a core and windings immersed in insulating oil. The insulating oil serves multiple purposes: it provides electrical insulation, dissipates heat generated during operation, and also helps in preventing the oxidation of the internal components. Oil – immersed transformers are known for their high efficiency, long service life, and ability to handle large power loads, making them indispensable in power transmission and distribution networks, industrial plants, and commercial buildings. Oil Immersed Transformer
Top 10 Suppliers
1. Ruibian (Jiangsu) Electric Power Co., Ltd.
Ruibian (Jiangsu) Electric Power Co., Ltd. is a leading enterprise in the field of power equipment manufacturing. It has been committed to providing high – quality oil – immersed transformers with advanced technology and strict quality control systems. The company has a group of experienced R & D and production teams, who are dedicated to continuously improving the performance and reliability of their products.
- Features in Oil Immersed Transformer: Their oil – immersed transformers have excellent insulation performance, which can effectively reduce the risk of electrical breakdown. They also feature high – efficiency heat dissipation design, ensuring stable operation even under high – load conditions.
- Advantages: The company offers customized solutions according to different customer requirements. With a complete after – sales service system, they can quickly respond to customer needs and solve problems.
- Website: https://www.ruibianpower.com/
2. TBEA Co., Ltd.
TBEA is a well – known international enterprise in the power equipment industry. It has a global presence and extensive experience in manufacturing various power transformers, including oil – immersed transformers. The company has strong R & D capabilities and large – scale production facilities.
- Features in Oil Immersed Transformer: TBEA’s oil – immersed transformers are designed with advanced materials and technologies, resulting in low loss and high energy efficiency. They have good short – circuit resistance, which can withstand sudden short – circuit faults in the power grid.
- Advantages: The company has a complete industrial chain, which enables it to control the quality and cost of raw materials. Its products are widely recognized in the international market, with high – quality certification and a good reputation.
3. China XD Group Co., Ltd.
China XD Group is a leading state – owned enterprise in the power transmission and distribution equipment field. It has a long – standing history and rich technical heritage in the manufacturing of oil – immersed transformers. The company focuses on technological innovation and product quality improvement.
- Features in Oil Immersed Transformer: Their oil – immersed transformers have high – voltage insulation technology, suitable for high – voltage power transmission projects. They also have a stable magnetic circuit design, which can reduce noise during operation.
- Advantages: With strong technical support and a large – scale production base, China XD Group can provide large – quantity and high – quality products. It also participates in many national key power projects, demonstrating its high – level technical strength.
4. Siemens Shanghai Transformer Co., Ltd.
As a joint – venture company between Siemens and a Chinese enterprise, Siemens Shanghai Transformer Co., Ltd. combines German advanced technology and Chinese manufacturing advantages. It has a high – standard production line and strict quality management system.
- Features in Oil Immersed Transformer: The oil – immersed transformers produced by this company have high – precision manufacturing processes, ensuring accurate electrical performance. They are also equipped with intelligent monitoring systems, which can real – time monitor the operating status of the transformer.
- Advantages: Siemens’ global R & D resources and technical support enable the company to keep up with the latest technological trends. The company also provides comprehensive technical training and after – sales service.
5. ABB (China) Ltd.
ABB is a world – famous power and automation technology company. Its operations in China have a long – term history, and it is well – known for its high – quality power equipment, including oil – immersed transformers.
- Features in Oil Immersed Transformer: ABB’s oil – immersed transformers are designed with high – reliability components, having a long service life. They also adopt advanced cooling technology, which can effectively reduce the operating temperature of the transformer.
- Advantages: With a global service network, ABB can provide timely and efficient support to customers. The company’s products adhere to international standards, ensuring high – quality performance in different power grid environments.
6. Shandong Taikai Transformer Co., Ltd.
Shandong Taikai Transformer Co., Ltd. is a professional manufacturer of transformers in China. It has a strong production capacity and a good market reputation in the domestic market. The company emphasizes product innovation and quality improvement.
- Features in Oil Immersed Transformer: Their oil – immersed transformers have a compact structure design, which can save installation space. They also have good overload capacity, suitable for some special industrial applications.
- Advantages: The company has a flexible production mode, which can quickly respond to customer orders. Its products have high cost – performance ratio, which is very attractive to middle – and small – scale users.
7. Baoding Tianwei Group Co., Ltd.
Baoding Tianwei Group has been engaged in the transformer manufacturing industry for many years. It has a solid technical foundation and a large – scale production capacity. The company is committed to product research and development and quality control.
- Features in Oil Immersed Transformer: Baoding Tianwei’s oil – immersed transformers have high – magnetic – conductivity iron cores, which can improve the transformer’s efficiency. They also have good moisture – proof and anti – corrosion performance.
- Advantages: The company has a complete set of quality inspection systems, ensuring that each product meets high – quality standards. It also has a good after – sales service team, which can provide long – term support to customers.
8. Xi’an XD Transformer Co., Ltd.
As a subsidiary of China XD Group, Xi’an XD Transformer Co., Ltd. focuses on the research, development, and production of high – voltage transformers, including oil – immersed transformers. It inherits the advanced technology and management experience of China XD Group.
- Features in Oil Immersed Transformer: Their oil – immersed transformers are suitable for high – voltage and ultra – high – voltage power systems. They have excellent insulation coordination design, which can ensure the safe operation of the transformer under complex electrical environments.
- Advantages: The company has a strong R & D team, which can continuously develop new products to meet the market demand. It also has a large – scale production base, ensuring the timely delivery of products.
9. Jiangsu Huapeng Transformer Co., Ltd.
Jiangsu Huapeng Transformer Co., Ltd. is a well – known transformer manufacturer in China. It has a wide range of products and a large market share in the domestic and international markets. The company focuses on product quality and brand building.
- Features in Oil Immersed Transformer: Their oil – immersed transformers have a stable voltage regulation performance. They also use high – quality insulating materials, which can improve the insulation reliability of the transformer.
- Advantages: The company has a good brand image and a wide sales network. It can provide customers with a variety of products and services, and has a high degree of customer satisfaction.
10. Zhejiang Sanbian Electric Group Co., Ltd.
Zhejiang Sanbian Electric Group is an enterprise with a long – standing history in the power equipment industry. It is mainly engaged in the production of transformers and other electrical equipment, including oil – immersed transformers.
- Features in Oil Immersed Transformer: The oil – immersed transformers of Zhejiang Sanbian Electric Group have a simple and reliable structure design. They also have good heat – dissipation performance, which can ensure the long – term stable operation of the transformer.
- Advantages: The company has a cost – effective production model, which can provide products with competitive prices. It also has a good after – sales service system, ensuring that customers can get timely help.
Dry-type Transformer In conclusion, these top 10 oil – immersed transformer suppliers in China in 2026 all have their own unique features and advantages. They play an important role in promoting the development of the power equipment industry in China and even in the world.
