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High voltage line insulators |
| release time：2018-12-15 viewed：3636次 |
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1 High voltage line rigid insulator: including needle type porcelain insulator, porcelain cross-pole insulator and butterfly type porcelain insulator.
According to the structure of the high voltage line porcelain cross-pole insulator, it can be divided into four types: whole porcelain type, adhesive type, single arm type and V shape; According to the installation form can be divided into vertical and horizontal two types; According to the 50 <UNK> full-wave impact flashover voltage, it can be divided into 185 kV, 2 lOkV, 280 kV, 380 kV, 450 kV, and 6 lOkV. Used for high voltage overhead transmission and distribution lines, can replace needle type and suspension type insulator, and save high pole porcelain.
High-voltage line butterfly porcelain insulator is divided into 6 kV and lOkV levels according to the rated voltage.
For overhead transmission and distribution line terminals, tensile and corner bar used as insulation and fixed wires. At the same time, it is also widely used as a combination with line suspension insulators as a component of the line gold tool to simplify the structure of the gold tool.
High voltage line suspension insulator: including disk-type suspension insulator, disk-type suspension glass insulator, porcelain pull rod insulator and ground wire insulator.
High voltage line disk-shaped suspension type porcelain insulator is divided into two types: ordinary type and pollution resistant type. For high-and ultra-high-voltage transmission lines for suspension or tensioning of wires and insulation from tower poles. Suspended insulators have high electromechanical strength and can be applied to various voltage grades through different series. They are suitable for various strength requirements and are most widely used. Normal type applies to &;; Dive; Like an industrial zone. Compared with ordinary insulators, the anti-pollution type has a large distance of climbing power and a shape that is easy to clean in wind and rain. It is suitable for coastal, metallurgical powder, chemical pollution, and more serious industrial pollution areas. When used in the above areas, anti-pollution insulators can reduce the size of the tower and have greater economic value.
High voltage line disk-suspension glass insulator and high voltage line disk-suspension porcelain insulator are basically the same use. The glass insulator has the characteristics of high mechanical strength, mechanical impact resistance, good cold and heat performance, long life, electrical performance and good lightning resistance, etc.. When the operation is damaged, the umbrella plate is automatically broken and easily discovered, greatly reducing the insulation detection workload.
High-voltage line porcelain rod insulators are used on terminal tensile and corner rods on lOkV and below overhead power lines for insulation and fixed wires. It can be used instead of some butterfly insulators and disc suspension insulators.
3 bar ceramic insulators for electrified railway contact networks |
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