Falling type lightning arrester on-line monitoring system

Abstract

The invention relates to a falling type lightning arrester on-line monitoring system, comprising an on-site monitoring local module, a data acquisition module and a background on-line monitoring module. The on-line monitoring local module collects the leakage current and discharge frequency of each lightning arrester; data is transmitted to the data acquisition control module through a bus mode; data is collected and processed, and is uploaded to the background on-line monitoring module; the background on-line monitoring module performs on-line monitoring and fault diagnosis on a lightning arrester according to uploaded data. The system employs a sensor to obtain equipment voltage and current signals, and transmits the signals to a preposition processing case through cables; a single-chip microcomputer converts the signals; the falling type lightning arrester on-line monitoring system analyzes and processes data according to characteristics and requirements of different equipment types to obtain monitoring results, store data, display the results, and obtain various determinations.

Description

technical field [0001] The invention belongs to the technical field of power supply systems, and relates to a drop-type arrester, in particular to an online monitoring system for a drop-type arrester. Background technique [0002] The drop-type (thrownable, detachable) arrester is skillfully installed on the drop-type mechanism of the drop-out fuse after refitting the distribution-type zinc oxide arrester, so that it can be operated with the help of the insulation switch under the condition of continuous power supply. It is convenient to detect, repair and replace the arrester, which not only ensures the smooth flow of the line, but also greatly reduces the work intensity and time of the power maintenance personnel, especially suitable for places where power failure is not suitable, such as communications, airports, stations, hospitals, bustling business district etc. [0003] Since most of the currently used zinc oxide arresters do not have gaps, the zinc oxide valve plate...

AI Technical Summary

Problems solved by technology

[0003] Since most of the currently used zinc oxide arresters do not have gaps, the zinc oxide valve plate has been subjected to power frequency voltage for a long time, and there will always be current flowing through the valve plate during operation. In addition, the effects of factors such as impact voltage and internal moisture will cause the arrester The aging of the valve, the increase of resistive leakage current and the intensification of power consumption will cause the temperature of the arrester valve to rise until a thermal collapse occurs, which will cause a power grid accident

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