Haihong's 3D wound core technology once again achieved the world's first - the world's first 110kV class, 40,000kVA capacity three-dimensional wound core oil-immersed power transformer was successfully developed

      The world's first 110kV class, 40,000kVA capacity three-dimensional wound core oil-immersed power transformer independently developed by Haihong Electric was successfully trial-produced in March 2015, and all performance indicators of the product are better than national standards. Special thanks to TBEA Hengyang Transformer Co., Ltd. and peer manufacturers for their support and cooperation in the trial production of this product!

      The research and development project of 110kV 3D wound core transformer originated on October 18, 2010. Comrade Su Bo, then head of the Disciplinary Inspection Group of the National Development and Reform Commission (currently the Vice Minister of the Ministry of Industry and Information Technology), led a team to visit Haihong Electric and proposed: "I hope Haihong can Applying the three-dimensional wound core technology to power transformers above 110kV will give full play to the advanced effect of the three-dimensional wound core in energy saving, material conservation and environmental protection."

      Haihong Electric actively responded to the national call for energy conservation and emission reduction, and took scientific and technological innovation as the foundation of enterprise development. In March 2011, it officially launched the research and development project of 110kV three-dimensional wound core transformer. Invested 30 million yuan in the early stage to set up a 110kV three-dimensional wound core transformer project research and development workshop, and by adjusting the organizational structure, selected elite talents in the fields of R&D, design, equipment manufacturing, and technology from the enterprise to form a 110kV three-dimensional wound core transformer research and development team, led by the chairman Personally lead the team to carry out technical research on the research and development project of 110kV three-dimensional wound core transformer.

      In the past ten years, Haihong Electric has accumulated a lot of design theory, technological know-how and perfect equipment manufacturing system for 35kV and below three-dimensional wound core transformers in the design, production and equipment manufacturing of three-dimensional wound core transformers. However, in the face of this research and development project with a breakthrough significance, the team still encountered challenges of varying degrees in all aspects of the research and development process. The chairman led the team to face the difficulties, based on independent innovation, and integrated the design and process technology of the most advanced 110kV transformer in the industry. After thousands of days and nights and the verification of hundreds of test programs, many difficulties were overcome. The final project achieve major success.

      The SZ11-RL-40000/110 three-dimensional wound core oil-immersed power transformer has been tested, and all performance indicators of the product are significantly better than the existing national standard values. Compared with the national standard S11, the no-load loss is reduced by 36%, the load loss is reduced by 11%, the no-load current is reduced by 88%, the partial discharge value is below 50pc, the noise is 56 decibels, and the electric field strength (flux leakage) is reduced by 60%.

      The 110kV three-dimensional wound core transformer research and development project has obtained 22 domestic and foreign authorized patents, including 1 authorized invention patent in the United States and 1 authorized invention patent in South Korea.

      The successful trial production of SZ11-RL-40000/110 product proves once again that Haihong Electric is right to stick to the road of self-innovation and technology development. After the product is put into operation, based on a rough estimate of the load factor of 0.6, the product can reduce power consumption by about 274,000kWh per year, which is equivalent to reducing coal consumption by 86 tons. At the same time, during the production process of this product, the utilization rate of silicon steel material is close to 100%. Compared with the same type of planar structure laminated iron core, it saves 20% to 25% of silicon steel sheet, 8% to 12% of copper material, and 5% of transformer oil. , reducing the process 5, greatly improving production efficiency. This product has the advantages of three-phase balance, stability and reliability, material saving, low loss, low noise, low leakage magnetic field intensity, and small footprint. Energy, effectively reducing user operating costs.

The successful development of this product has been highly valued by the leaders of the Ministry of Industry and Information Technology of the People's Republic of China. The Equipment Department and relevant leaders sent congratulatory messages: "Congratulations to Haihong Electric for its achievements in independent innovation, and hope that Haihong Electric will industrialize the results as soon as possible and seize the world's energy-saving power transmission and transformation field Technical commanding heights, improve the level of my country's transformer equipment."

      The success of the research and development project is only a new starting point for Haihong Electric in the field of 110kV three-dimensional wound core transformers. We will uphold the spirit of openness and innovation of Haihong people, and continue to make progress in design, technology, and equipment manufacturing; at the same time, we also earnestly hope that Join hands with other manufacturers in the same industry to jointly promote 110kV three-dimensional wound core power transformers with high efficiency, energy saving and material saving, and strive to complete the national energy conservation and emission reduction goals, promote economic green and low-carbon development, and promote the construction of a "two-oriented society".

Su Bo, Vice Minister of the Ministry of Industry and Information Technology, came to guide the work

SZ11-RL-40000/110铁心

SZ11-RL-40000/110 coil winding

SZ11-RL-40000/110产品