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Line flashover protector

A flashover protector and line flashover technology, which is applied in the direction of conductor discharge/electricity consumption, installation of electrical components, cables, etc., can solve the problems that transmission lines are vulnerable to lightning strikes, achieve strong general performance, improve service life, The effect of easy maintenance

Inactive Publication Date: 2017-05-10
LISHUI POWER SUPPLY COMPANY OF STATE GRID ZHEJIANG ELECTRIC POWER +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The technical problem to be solved by the present invention is to provide a line flashover protector to solve the problem that the existing power transmission lines are vulnerable to lightning strikes

Method used

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Embodiment Construction

[0025] Such as figure 1 , figure 2 As shown, the line flashover protector includes a discharge ring 1, a composite insulator 2, a discharge probe 3, an equipotential fitting 4, a flashover protector body 5 and a cross arm 6, and the upper end of the flashover protector body 5 is vertically suspended on the horizontal arm. On the shoulder 6, a connecting wire 7 is connected between the flashover protector body 5 and the cross arm 6, and the connecting wire 7 realizes the short circuit between the flashover protector body 5 and the cross arm 6, and the equipotential fitting 4 and the flashover protector body 5 connected to realize the equipotential connection of the flashover protector body 5, the surface of the equipotential fitting 4 is hot-dip galvanized, the composite insulator 2 is set on the equipotential fitting 4, and the composite insulator 2 realizes the connection between the flashover protector body 5 and the high-voltage lead wire during operation. isolation, the ...

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Abstract

The invention relates to a line flashover protector comprising a discharge ring, a composite insulator, a discharge probe, an equipotential fitting, a flashover protector body and a cross arm. The upper end of the flashover protector body is vertically suspended on the cross arm. The equipotential fitting is connected with the flashover protector body. The composite insulator is arranged on the equipotential fitting. The composite insulator realizes isolation from a high voltage lead in operation of the flashover protector body, and the discharge probe and the discharge ring are arranged on the composite insulator and the gap between the discharge probe and the discharge ring is adjustable. The advantages of the line flashover protector are that isolation from the high voltage lead in operation of the flashover protector body can be realized through the composite insulator so that leakage current is ensured not to flow through the flashover protector body in normal operation and the service life of the flashover protector body can be enhanced; and the the discharge probe and the discharge ring are arranged so that the line-to-ground fault is not generated even the flashover protector body is damaged and thus normal operation of the line can be guaranteed.

Description

technical field [0001] The invention relates to a line flashover protector. Background technique [0002] The insulation level of distribution lines is usually relatively low. Not only direct lightning strikes can cause damage, but also overvoltage generated by induced lightning can cause lightning accidents. Moreover, the lightning protection measures that can be taken for distribution lines are very limited, and generally cannot be erected for lightning protection. Lines, coupled ground wires, etc., just install lightning arresters for protection. However, the arrester is only suitable for the protection of the incoming and outgoing lines of the distribution line and the distribution equipment, and cannot be installed in large quantities on the distribution network. If the arrester is installed on the entire distribution line, due to the large number, it will inevitably lead to high cost and large investment. It is difficult to operate and maintain, and when the arrester ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02G13/00
CPCH02G13/80
Inventor 王曜飞胡志宏林锋宋亚夫王立娜苗强杨幸华刘杨章胜
Owner LISHUI POWER SUPPLY COMPANY OF STATE GRID ZHEJIANG ELECTRIC POWER
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