Lightning arrester with counting function

Abstract

The invention discloses a lightning arrester with a counting function, mainly applied to an overhead insulation lead; the overhead insulation lead is provided with an insulator and a puncturing wire clamp pole. The lightning arrester comprises a series gap lightning arrester and a support; the series gap lightning arrester is composed of a lightning arrester body, and the puncturing wire clamp pole keeping a certain distance with one end of the lightning arrester body; the other end of the lightning arrester body is installed on one side of the insulator through a support; the lightning arrester body is also in connection with a counter, and the lightning arrester body and the counter are integrated. Compared with the prior art, the lightning arrester has the characteristics of simple structure, lower cost and convenient installation and maintenance, and avoids aging and cracking of the lightning arrester body and prolongs the service life of the lightning arrester body; the series gap lightning arrester has a gap distance, so that even the lightning arrester body breaks down, an apparatus can operate normally.

Description

technical field [0001] The invention relates to the technical field of electric equipment, in particular to a lightning protection device with a counting function. Background technique [0002] At present, overhead insulated wires have been widely used in medium-voltage power lines. Under the action of lightning overvoltage, once the overhead insulated wires flashover to the ground, the power-frequency continuous current will flow along the breakdown channel. Due to the limitation of the outer insulation of the wire, the continuous current of the power frequency is very easy to be fixed at a certain position and continue to burn the wire, resulting in damage to the wire. Frequent continuous flow to prevent the occurrence of breakage accidents of insulated overhead conductors. In order to further understand the protection status of the arrester on the power line, the online monitoring measures of the arrester are adopted, and there are many characteristic physical quantities...

AI Technical Summary

Problems solved by technology

[0003] However, most of the series gap arresters operating on the grid have not taken online monitoring measures, and it is impossible to realize online monitoring of the number of operations of the series gap arrester.

A small number of series gap surge arresters operating on the grid use traditional split counters for online monitoring, which is complicated to install, inconvenient to maintain, and high in cost

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