The first case of UHV ±800kV composite post insulator birth

In mid-July, the reporter learned from Nantong Shenma Power Technology Co., Ltd. that the world's first UHV ±800kV composite post insulator was born in the company. Experts in the industry believe that its technical indicators in all aspects fully meet the requirements, indicating that China's foreign insulation technology has developed to the most advanced level in the world.

For a long time, there is a major safety hazard in China's power industry—the explosion of power station equipment and the large-scale pollution flashover accident. The crux of the problem lies in the extremely unreliable performance of porcelain insulators that have been used for more than 100 years. Power companies urgently need a new technology to control the "electric tiger", but because the key technology of equipment insulation is subject to people, the domestic equipment insulation market is mastered by international giants, and can not fundamentally guarantee the safety of China's UHV construction.

Nantong Shenma Power Technology Co., Ltd. has sharply captured this information. In 2004, they successfully developed a composite hollow insulator with international advanced level using new materials and new processes. The new concept of composite hollow insulator is explosion-proof, shock-resistant and anti-destructive, good in stain resistance and aging resistance, small in size, light in weight, maintenance-free, no need for cleaning and other superior performance and very obvious technical advantages. Many defects of porcelain hollow insulators in electric power operation have greatly reduced the occurrence of explosion injury accidents, ensured the smooth and safe operation of the power system, and broke the long-term dependence on imports in the high voltage field in China.

In order to make this innovative product with completely independent intellectual property rights invigorated in the promotion and application, in June 2004, Shenma Company declared the core technology of the achievement to apply for a number of invention patents and the international PCT, and constructed the intellectual property protection strategy. The technical barrier of composite hollow insulators makes it impossible for international counterparts to produce this product using the same materials and processes. This ensures that the composite hollow insulators quickly occupy the international and domestic markets and win a broad market space for Shenma. In order to ensure its market position, Tyco, an internationally renowned insulator manufacturer, has repeatedly proposed to buy out the overseas sales rights of Shenma Company and fully represent the sales outside mainland China, which were rejected by Shenma Company. Well-known power transmission and transformation equipment manufacturers, such as ABB, SIEMENS, AREVA, etc., also took the initiative to go to the door to seek cooperation, and some signed a long-term cooperation agreement, and some began to give up their own composite hollow insulators.

At the same time, Shenma Company increased capital and talent investment, and successively invested 6,300 yuan to purchase the most advanced insulator manufacturing equipment in the world, and introduced dozens of universities from Peking University, Tsinghua University, Xi'an Jiaotong University and Southeast University. High-tech talents use the fastest time to make the patented results into mass production capacity. In 2006, composite hollow insulators have formed sales of 110 million yuan, realized profits of 18.09 million yuan, and paid taxes of 17.42 million yuan.

On the basis of economic strength, Shenma Company has actively innovated and developed the world's first UHV ±800kV composite post insulator. This achievement shows that China's equipment insulation technology has developed to the world's leading level and has a comparative advantage in the world. At present, this technology also supports the construction of the national “Eleventh Five-Year” major project – the UHV power grid, and realizes the localization of the “Power Casing”, the core component of power transmission and transformation equipment.

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