Integrated surge arrester online monitoring device

Abstract

The invention relates to the technical field of online monitoring of arresters and especially relates to an online monitoring device of an integrated lightning arrester. The invention specifically provides the monitoring device and a measurement method of the lightning arrester. The device and method integrate a mechanical lightning arrester monitoring device and an electronic lightning arrester online monitoring device aiming at a gapless metallic oxide lightning arrester. The online monitoring device of the integrated lightning arrester provided by the invention is composed through in-series connection of the mechanical lightning arrester monitoring device and the electronic lightning arrester online monitoring device, wherein after the in-series connection, the overall device is connected to a resistor disc in parallel. The device has the advantages that a total current, a resistive current, a quantity of action times, action occurrence time and other parameters of the lightning arrester can be monitored online; and the device is also equipped with functions such as display of a local mechanical ampere meter and a counting meter, remote communications and local data storage. The device increases data measurement accuracy, carries out remote transmission of data, enables repair workers to carry out on-site repair, maintenance and installation conveniently, satisfies development requirements of an intelligent substation, provides a new method for the online monitoring of an insulation state of the lightning arrester, is applicable to the online monitoring of the lightning arresters with various voltage grades and has wide application prospect.

Description

technical field [0001] The present invention relates to the technical field of on-line monitoring of lightning arresters, in particular to an integrated lightning arrester on-line monitoring device, specifically to a metal oxide lightning arrester without gaps, an arrester monitoring device and a measuring method that integrates a mechanical lightning arrester monitoring device and an electronic lightning arrester on-line monitoring device . Background technique [0002] In power systems, arresters are widely used as protection devices for substations. The traditional lightning arrester monitoring method is to use mechanical ammeter and counting meter to monitor the operation status of the lightning arrester. The measurement is inaccurate and cannot be transmitted remotely. Malfunction. In order to solve these problems, online monitoring devices for electronic arresters have emerged in China, which have the functions of monitoring data and data remote transmission. [000...

AI Technical Summary

Problems solved by technology

[0003] At present, although the electronic arrester on-line monitoring device is applied on site, the traditional arrester counting table still needs to be retained, because the maintenance personnel need to use the traditional counting table to lead out the measurement points in order to use the resistive current test instrument, and the electronic arrester on-line monitoring device With transformer measurement, the measurement point cannot be drawn out, and the resistive current tester cannot be used, so the mechanical arrester monitoring device and the electronic arrester online monitoring device are mostly installed on the arrester body at the same time, which leads to the complex structure of the monitoring device , low integration, cumbersome installation, troublesome maintenance, increased cost, etc.

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