Comparison of development situation of various insulators

Organic composite insulator is a rapidly developing new material insulator. It is small in size, light in weight, and no need to check the zero value. Moreover, due to the hydrophobicity of silicone rubber material, the pollution withstand voltage of composite insulator can be greatly improved. At present, the manufacturing level of various types of core rods has been greatly improved, and the quality is stable and the production capacity is quite large, which can fully meet the needs of the organic composite insulator manufacturing industry.

The outstanding advantage of glass insulator is "zero value self explosion", so it has a good application prospect in the power grid which is prone to large-scale serious pollution.

The dry production of glass insulators requires complex production equipment, large investment and high technology. Therefore, there are not many enterprises producing glass insulators.

With the continuous improvement of technology in recent years, the products with crimp structure have become the representative of an advanced technology and have been widely popularized and applied. The 750kV, 2l0-300kn composite insulator produced by China has passed the national appraisal and will be put into operation soon. It can be said that the manufacturing level of this voltage grade composite insulator has reached the international advanced level. Porcelain insulators have good chemical and thermal stability, almost no aging and deterioration, and good electrical and mechanical properties. New varieties such as large disc diameter, l00-400kn large tonnage, ordinary type and bell shaped umbrella have appeared. However, in general, the number of porcelain insulator manufacturers has not increased in recent years, but has decreased through integration and reorganization in the same fierce market competition. DC insulator is a new kind of insulator. Organic composite insulators, porcelain insulators and glass insulators have been applied to DC transmission lines both at home and abroad. Although the number is small, certain operating experience has been accumulated. In China, we mainly rely on several large manufacturers and research institutes to carry out research and development in this area, and they provide a certain number of products for operation. In the future, with the construction of more than ten planned DC transmission projects in China, there will be a great demand for DC insulators. Long rod porcelain insulator is another new type of line insulator. This kind of insulator is mainly used in Europe, mainly in Germany, mainly because it inherits the advantages of the suspension type porcelain insulator, has light weight (between the disc-shaped suspension type porcelain insulator and the organic composite insulator), good anti-aging performance, high pollution resistance, strong white cleaning performance (the umbrella is an open aerodynamic type without cleaning), simple and convenient use and maintenance, non breakdown, good and stable electrical performance High anti-destructive strength and low operation and maintenance cost.

The above is the comparison of the development situation of various insulators. If you have any other questions, please contact us!