Hengheng ultra-high pressure technology has entered the ranks of the world's advanced level

In 2007, the project titled “Key Technology Research, Equipment Development and Engineering Application of 750 kV AC Transmission and Transformation,” developed by TBEA Hengyang Transformer Co., Ltd., was honored with the "First Prize of National Science and Technology Progress Award" issued by the State Council. This prestigious recognition marked a significant milestone, showcasing that Hengyang's ultra-high voltage technology had reached world-class standards. In August 2003, the company signed a major contract with State Grid Corporation to produce 750 kV power transmission and transformation equipment. These products were supplied for the Qingting Guanting to Gansu Lanzhou East Transmission Substation Demonstration Project, which is located at the highest altitude in the world. Over 100 technical experts worked together to solve more than 80 global technical challenges in product design, manufacturing processes, and quality inspection. Their efforts led to the successful first-time manufacturing, installation, and operation of the equipment, and they obtained 13 national patents in the process. The company has always emphasized independent innovation in its key technology research and development. The coil, considered the "heart" of the transformer, was redesigned using advanced concepts introduced from abroad. This new approach significantly improved the reliability of the product, while also offering energy-saving and material-saving benefits, enhancing overall efficiency. Since the reorganization of TBEA, the company has experienced rapid growth. Over the past seven years, it has focused on achieving global leadership in the power transmission and transformation field, striving to develop high-end products. Its output value increased from 100 million yuan in 2000 to 2.5 billion yuan in the most recent year, and net assets grew by 502 times. Annual tax payments rose from 7.92 million yuan to 135 million yuan during this period. The company has invested 1.2 billion yuan in three large-scale technological upgrades to support long-term development. Aligned with the country’s medium- and long-term development plan, the company has taken part in major scientific research projects under the “10th Five-Year Plan” and “Eleventh Five-Year Plan.” It has mastered the technology for 750 kV and 1000 kV transformers and reactors, which represent the pinnacle of global power transmission and transformation equipment. Additionally, it has developed core technologies with independent intellectual property rights, such as the one million kilowatt generator main transformer. The company has provided cutting-edge domestic first (set) products and services for major national projects, including the Three Gorges Project, the West-East Power Transmission Project, and the UHV AC Demonstration Project. As a result, it has become a leading enterprise in China’s power transmission and transformation industry. Currently, it holds over 100 core patent technologies and proprietary technologies both domestically and internationally, along with nearly 100 invention patents. Earlier, the company’s 750 kV reactor was awarded the “China Machinery Industry Special Award.” Today, it is actively developing a 1,700 kV transformer, which represents the most advanced technology in the world.

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