It is known that high-purity sulfur hexafluoride has many advantages compared with other edge media. It is safe to use and has no fire hazard. There is no need to worry about the aging and breakdown damage of the edge material. The operation, maintenance and overhaul of the equipment are convenient. GIS only needs to monitor the pressure or density of SF6 gas. The overhaul period is long, and the current-carrying parts and edges are not affected by atmospheric conditions, which can reduce the maintenance workload.
In the power industry, high-purity sulfur hexafluoride is an important medium, which is used as the arc extinguishing and edge gas for closed, high-voltage switches. The superior performance of SF6 gas realizes economical and low-maintenance operation of the device. At present, as the edge and arc extinguishing medium, there is no other technology that can surpass SF6 gas from the technical, economic and ecological point of view. Sulfur hexafluoride is easy to assemble in the factory, and it is easy to transport and install. The applicable temperature and pressure range is wide.
High-purity sulfur hexafluoride is noiseless and free from radio interference. Good edge, arc extinguishing and cooling performance. It is beneficial to reduce the volume and mass of electrical equipment, and the layout is compact. Moreover, sulfur hexafluoride decomposes under high pressure and high temperature, and decomposes into toxic substances such as hydrogen fluoride, sulfur dioxide, sulfur tetrafluoride, hydrogen sulfide, etc., which can cause acute edema of lung tissue, affect oxygen exchange in the lungs, and cause hypoxia and suffocation death. Therefore, it is imperative to discover and solve the problem of SF6 leakage in time.
Therefore, in recent years, with the continuous development of society, economy and switch technology, the complexity of engineering construction has increased, and the miniaturization, maintenance-free, and intelligent products of switchgear have become more and more popular. Shuncheng sulfur hexafluoride has good edge performance and is widely used in high-voltage switchgear at this stage. Under normal operating conditions, it is an ideal edge and arc extinguishing medium. Of course, SF6 switches have become the best among high-voltage switches with better margins.
Shuncheng Chemical Research and Design Institute Co., Ltd., formerly known as Shuncheng Chemical Research Institute, was a comprehensive research institute of the former Ministry of Chemical Industry. It was founded in 1965. According to the needs of our defense construction, it was researched by Beijing, Shanghai, Tianjin and Shenyang Chemical The relevant research laboratory of the institute was established in Qinghai, mainly engaged in the research and development of new chemical materials and chemical propellants and their raw materials. In 1984, it moved to Luoyang, Henan. In 1999, it was transformed from the original public institution to a technologically-owned enterprise. In 2012, it was restructured and renamed as "Shuncheng Chemical Research and Design Institute Co., Ltd.". It is now affiliated to China National Chemical Corporation.
After 50 years of development, Shuncheng Chemical Research and Design Institute Co., Ltd. has gradually formed a technology research and development center, consisting of four business sectors including chemical propellants and raw materials, new polyurethane materials, fluorine-containing gas materials, hydrogen peroxide and supporting raw materials. , With two service units of engineering design and analysis and testing, both of which are in the leading position in the same industry, and have made positive contributions to the aerospace industry, defense construction and civil economic development.
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