History of the Development of Composite Insulators
Composite insulators are made of silicone rubber material composite high voltage insulators. The main rod and cross arm style, 35KV/110KV / 220KV line as a drape and resistant sheets bearing insulation products, is also used for 10KV line insulator product. Different types of composite insulators in different purpose use, the silica composite insulators for substations, with good hydrophobicity, aging resistance, resistance to tracking and resistance to erosion resistance, high tensile strength and flexural strength. Its high mechanical strength, good impact resistance, shock-proof and anti-brittle fracture performance, light weight, easy installation and maintenance, its upper and lower ends of the installation size porcelain post insulators mounting dimensions can be used interchangeably.
Advantages of Composite Insulators
1. Superior mechanical properties: the mandrel is made of epoxy glass fiber, its tensile strength was 1.5 times that of ordinary steel, high-strength ceramic 3 to 4 times axial tension is particularly strong and has a strong vibration absorption capacity, high performance of seismic damping porcelain insulators, 1/7 to 1/10.
2. Stain-resistant flash performance: composite insulator is hydrophobic, synthetic insulators umbrella in the rain when the corrugated surface does not wet the water film is formed, was the drops of water like dripping, is not easy to have a conductive channel, the higher its pollution flashover voltage for same voltage levels porcelain insulator 3 times.
3. Galvanic corrosion resistance is excellent: the surface of the insulator leakage flashover formation irreversibility deterioration tracking phenomenon, the general standard of not less than 4.5 (ie 4.5kV) composite insulators for 6 to 7.
4. Anti-aging properties: after decades Practice detection of composite insulators in addition to the color darken slightly and the dielectric constant and dielectric loss angle slightly increased, the surface wettability and electrical erosion resistance no change of tracking sex, indicating a good anti-aging properties.
5. Structural stability: General porcelain suspension insulator assembly structure within the plastic, galvanic corrosion, insulation resistance of the low value of zero will run, and the composite insulators Cover assembly structure, its heart is a solid rod of insulating material, does not exist deterioration of aggregate breakdown, zero value does not appear insulators.
6. Line operating efficiency: synthetic insulators weatherproof self-cleaning, without producing zero value insulator, so the cleaning and inspection can be changed to once every four to five years, reducing maintenance outage time.
7. Light weight: with the insulator own light weight transportation, construction jobs, which can greatly reduce the labor intensity of the staff.
www.compositeinsulators.net. Our company is a high-tech enterprise, which specializes in the manufacturing of composite insulators for electric power and electrical railways.
This article is come from:http://www.mobilesaccessories.net/index.php/know-about-composite-insulator.htm
Showing posts with label composite insulators. Show all posts
Showing posts with label composite insulators. Show all posts
Friday, February 1, 2013
Wednesday, September 19, 2012
China Insulator Industry Development Needs
Smooth Development of China Insulator Industry
The development of China's power industry has brought unprecedented opportunities to the whole insulator industry, and the insulator industry should firmly grasp the rare opportunity to rely on technological progress, the development of new varieties, strengthen quality control to meet the needs of the power industry, especially high-end hollow market demand for porcelain insulators and casing products. composite insulator development in China has better adapted to the requirements of the development of the grid, has greatly improved the level of product quality, the insulator manufacturing level reached the international leading running performance is getting better and better. Domestic brittle fracture occurs a few cases of composite insulators autopsy also found mandrel breaking not occur in the exposed parts of the mandrel stress concentration, but is located near the end of the sheath seal fittings. This shows that the composite insulator core fracture occurred due to the effect of acid rain is very rare.
Failure Rate of Chinese Insulator Industry
Insulator failure rate of the industry in China are: Insulator is three over ten thousands (high voltage parts per million), glass and porcelain insulators are two over a millionth; the arrester health is stable; pillars and hollow insulators made great progress; casing products many problems. To this end, various manufacturing enterprises to further strengthen quality control, especially in design, materials and process control; strengthen sound science research combined to accelerate the development of new products continue to meet the demand of power grid construction; strengthen communication between the two parts, and serve for the common building of a strong and smart grid system. The whole industry of composite insulators is still in the process of rapid development, and there are still some constraints.
Insulator industry Problems
At present, there are two problems in the insulator industry: First, the concentration degree of the industry is small, and the enterprise scale is small, the industry-wide problem should be resolved as soon as possible to "break up" because of the small concentration; Second, we must make efforts to the research and development of basic materials applicable, to advance its technological progress. Insulator inter stage capacitance minimal long pole insulated structure, the insulation part of the voltage is very unevenly distributed. Wire end in the product, although equipped with a pressure ring, but its voltage gradient is still quite large, the lugs of the end portion during normal operation, although not appear corona, but the field strength has been almost the same with the corona field intensity. Wire ends exist in the product with the highest field strength parts, the high field strength accelerate the mandrel exposed at the saturated aqueous medium, good permeability of the epoxy resin to the proliferation of a low concentration portion along the glass fiber, so that epoxy impossible uniform residual anhydride curing machine and accelerate the penetration of water molecules, and the field strength of the mandrel circumferential parts have aqueous medium.
This article is come from:http://cell.battery-products.com/composite-insulator/china-insulator-industry-development-needs.htm
The development of China's power industry has brought unprecedented opportunities to the whole insulator industry, and the insulator industry should firmly grasp the rare opportunity to rely on technological progress, the development of new varieties, strengthen quality control to meet the needs of the power industry, especially high-end hollow market demand for porcelain insulators and casing products. composite insulator development in China has better adapted to the requirements of the development of the grid, has greatly improved the level of product quality, the insulator manufacturing level reached the international leading running performance is getting better and better. Domestic brittle fracture occurs a few cases of composite insulators autopsy also found mandrel breaking not occur in the exposed parts of the mandrel stress concentration, but is located near the end of the sheath seal fittings. This shows that the composite insulator core fracture occurred due to the effect of acid rain is very rare.
Failure Rate of Chinese Insulator Industry
Insulator failure rate of the industry in China are: Insulator is three over ten thousands (high voltage parts per million), glass and porcelain insulators are two over a millionth; the arrester health is stable; pillars and hollow insulators made great progress; casing products many problems. To this end, various manufacturing enterprises to further strengthen quality control, especially in design, materials and process control; strengthen sound science research combined to accelerate the development of new products continue to meet the demand of power grid construction; strengthen communication between the two parts, and serve for the common building of a strong and smart grid system. The whole industry of composite insulators is still in the process of rapid development, and there are still some constraints.
Insulator industry Problems
At present, there are two problems in the insulator industry: First, the concentration degree of the industry is small, and the enterprise scale is small, the industry-wide problem should be resolved as soon as possible to "break up" because of the small concentration; Second, we must make efforts to the research and development of basic materials applicable, to advance its technological progress. Insulator inter stage capacitance minimal long pole insulated structure, the insulation part of the voltage is very unevenly distributed. Wire end in the product, although equipped with a pressure ring, but its voltage gradient is still quite large, the lugs of the end portion during normal operation, although not appear corona, but the field strength has been almost the same with the corona field intensity. Wire ends exist in the product with the highest field strength parts, the high field strength accelerate the mandrel exposed at the saturated aqueous medium, good permeability of the epoxy resin to the proliferation of a low concentration portion along the glass fiber, so that epoxy impossible uniform residual anhydride curing machine and accelerate the penetration of water molecules, and the field strength of the mandrel circumferential parts have aqueous medium.
This article is come from:http://cell.battery-products.com/composite-insulator/china-insulator-industry-development-needs.htm
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