Arc compression arc extinguishing lightning protection gap device

Abstract

The invention discloses an arc compression arc extinguishing and lightning protection gap device, which comprises a main body of a lightning protector and an arc-starting electrode. The arc-starting electrode is fixedly installed at one end of the main body of the lightning protector, and the other end of the main body of the lightning protector is fixedly installed through connecting fittings. On the cross arm or one end of the insulator string; the main body of the lightning arrester is provided with an arc extinguishing path composed of several sections of arc extinguishing channels and arranged in a Z-shaped cycle; The arc extinguishing tube is connected to the arc striking electrode through the arc guiding rod, and the arc extinguishing tube at the exit of the last section of the arc extinguishing channel is connected to the connecting fittings; among them: there is a three-way pipe at the connection of two adjacent arc extinguishing channels; The two ends of the three-way tube are respectively provided with an arc-guiding electrode; one end of the arc-guiding electrode extends into the three-way tube, and the other end is directly connected to the adjacent arc extinguishing tube or connected through a wire. The invention has the advantages of simple structure, reasonable design, stronger arc extinguishing ability and stable and reliable operation.

Description

technical field [0001] The invention relates to a lightning protection device for a power transmission line, in particular to an arc compression arc extinguishing lightning protection gap device. Background technique [0002] Lightning is an important factor affecting the safety of transmission lines. It has long occupied the first place in line fault tripping. It is a natural process of atmospheric activity and has not been controlled so far. However, we can analyze the frequent accidents to find the law of lightning strikes and strengthen prevention. For example, towers on high mountains or peaks, transmission lines near ponds or reservoirs, towers crossing mountains or rivers and lakes, and towers installed on high grounding resistance, rocky tower foundations and transmission lines are all vulnerable to lightning damage. focus. [0003] Lightning strikes will bring different forms of damage and damage to power facilities. Thundercloud discharge will cause lightning ove...

AI Technical Summary

Problems solved by technology

[0008] Although the above patents have played a very good role in lightning protection, there are still some shortcomings. There is only the vertical blowing arc extinguishing method. When the arc is strong, the arc is not easy to blow out.

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