Electric arc compressed arc-extinguishing lightning protection gap device

Abstract

The invention discloses an electric arc compressed arc-extinguishing lightning protection gap device. The electric arc compressed arc-extinguishing lightning protection gap device comprises a lightning protection device main body and an arc-striking electrode, wherein the arc-striking electrode is fixedly arranged at one end of the lightning protection device main body, and the other end of the lightning protection device main body is fixedly arranged on a cross arm or at one end of an insulator chain through a connecting armor clamp; the lightning protection device main body is provided with an arc-extinguishing path which consists of a plurality of arc-extinguishing passages and is in Z-shaped cyclic arrangement; an arc-extinguishing tube at the inlet of the first arc-extinguishing passage of the arc-extinguishing path is connected with the arc-striking electrode through an arc-guiding rod, and an arc-extinguishing tube at the outlet of the final arc-extinguishing passage is connected with the connecting armor clamp, wherein a three-way tube is arranged at the joint of every two adjacent arc-extinguishing passages; an arc-guiding electrode is arranged at each of two ends of the three-way tube respectively; one end of each of the arc-guiding electrodes stretches into the three-way tube, and the other ends of the arc-guiding electrodes are connected with the adjacent arc-extinguishing tube in a direct contact manner or through leads. The electric arc compressed arc-extinguishing lightning protection gap device is simple in structure, reasonable in design, high in arc-extinguishing capacity and stable and reliable to operate.

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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