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Post composite insulator for power systems are composed of three main parts:core(FRP),silicone rubber umbrella sleeve(HTV)and end flanges(precision cast steel,welded steel,stainless steel),and the flanges and core are assembled in the form of crimped joints.This product has the advantages of excellent anti-fouling flash performance,anti-brittle fracture,excellent insulation performance,light weight,easy installation and transportation,safety and reliability.
Post composite insulator are used in electrical equipment such as power frequency AC voltage 40.5kV～1100kV and DC voltage±100kV～±800kV substations,converter stations,etc.The main application products are reactor support,high-voltage disconnecting switch insulating pillars, busbar support,and other high-voltage equipment insulating support and so on.
Core:epoxy resin fiberglass draw bars are used as the inner insulation support,with excellent seismic performance to prevent brittle fracture.
Silicone rubber umbrella sleeve:Integral injection molding,optimized umbrella design,improve the effectiveness of creep age distance and product flash voltage.
End flange:Adopting crimping process to assemble the flange,with stable and reliable mechanical performance and high production efficiency.
The overall weight of the product is lighter than that of porcelain insulators,which makes it easy to install,with a short production cycle and high quality stability.
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Composite Hollow Insulator is mainly composed of epoxy fiberglass reinforced twine pipe, silicone-rubber adds sheds increasing creepage distance and connecting flange. Epoxy fiberglass reinforced twine pipe, which is the insulating inner part of composite hollow insulator, is processed by special winding machine using epoxy resin impregnated fiberglass according to mechanical laydown design, and has excellent mechanical strength and dielectric property. As the external insulation of composite hollow insulator, silicone rubber add sheds increasing creepage distance takes on necessary electric functions, such as protecting and providing creepage distance. Connecting flange, which is made of aluminum through compression casting, adopts unique adhesive technology to deliver mechanical load and provide sealing for supporting and connecting structures. Composite Hollow Insulator is suitable for 40.5KV-550KV power system. For example, high voltage electric products like SF6 transformer, SF6 line breaker bushing, arrester, high voltage bushing, subsection capacitor, cable terminal, etc.
Company Profile
Nanjing Electric was founded in 1936 and is the first high-voltage ceramic manufacturer in the history of China's electrical industry. It is also the headquarters of Baiyun Group in the East China region. Nanjing Electric has been rated as one of the top 500 mechanical industrialization enterprises in China and a first-class industrial enterprise in China. At present, the base covers an area of 19 hectares and employs 1000+ people. The industrial base was put into operation with equipment in 2015. Nanjing Electric specializes in developing glass insulators, composite insulators, and ceramic insulator products. In 1958, China developed the first Tempered Glass insulator and condenser Bushing, filling the domestic gap. The company's products are exported to more than 120 countries and regions around the world, such as the Americas, Australia, the Middle East, Southeast Asia, and more than 50% of countries and regions in Europe. The main customers are national power grid companies or local power grid companies in various countries. The domestic market has achieved full coverage. The company's products are widely used in national strategic projects, including 33 UHV projects above 800KV. Our company is the largest insulator supplier in national engineering.
Nanjing Electric International Co., Ltd., formerly known as the Overseas Business Unit of Nanjing Electric Technology Group, established an international trade company in 2021 based on the development strategy of the group. With insulators and sleeves as the two flagship exhibits, the company actively carries out resource and multi-party cooperation around common values and market views. On the way to the world, international trading companies will firmly step forward and work hard for the century old white clouds and the world's white clouds.
The international trade team participated in international power exhibitions held in countries each year such as Germany, the United States, Brazil, Saudi Arabia, Egypt, India, Italy, Saudi Arabia, Australia, the Philippines, Thailand, Spain, Mexico, etc; Track the progress of key power projects in various countries; Further promote the internationalization process of products.
Facing the future, the company will focus on the needs of national power construction, seize the opportunities of new power infrastructure, ultra-high voltage projects, the "the Belt and Road" construction, and the development of green energy. According to the strategic positioning of Baiyun Electric Group to build the company into the second headquarters of the group relying on the Yangtze River Delta, the company will build and develop a world-class insulator and related product R&D and production base, explore and build new products, new technologies, and new formats, Make new contributions to national power construction and global power development, and strive to become a century old enterprise.
