A countable arc intercepting lightning arrester

Abstract

The invention discloses a countable cut arc lightning arrester which comprises a lightning arrester body and an arc striking electrode. The arc striking electrode is fixedly mounted at one end of the lightning arrester body, the other end of the lightning arrester body is fixedly mounted on a cross arm through a connection fitting, the lightning arrester body is provided with an arc extinguishing path in Z-shaped circulating arrangement, the arc extinguishing path comprises a plurality of arc extinguishing channels, a copper block is arranged at the joint of every two adjacent arc extinguishing channels, two arc extinguishing tubes are placed on each arc extinguishing channel, an arc guiding ball is arranged between the two arc extinguishing tubes, the arc extinguishing tube at an inlet of the first arc extinguishing channel of the arc extinguishing path is connected with the arc striking electrode through a threaded arc guiding rod, the arc extinguishing tube at an outlet of the last arc extinguishing channel is connected with the connection fitting through a lead, and a counter is arranged at the outlet of the last arc extinguishing channel. The countable cut arc lightning arrester is simple in structure, reasonable in design, high in arc extinguishing capacity and stable and reliable in operation, and later maintenance and replacement are facilitated.

Description

technical field [0001] The invention relates to a lightning protection device for a power transmission line, in particular to a countable arc-cutting lightning protection 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 overvoltage in the p...

AI Technical Summary

Problems solved by technology

[0011] Although the above patents have played a very good role in lightning protection, there are still some shortcomings, such as the large volume of the discharge counter, which is difficult to install in some specific occasions, the anti-interference ability is weak, and it is easy to generate wrong counts, and the data cannot be stored. Manual recording, wasting a lot of labor

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