An on-line monitoring device and monitoring method for insulator metal dust contamination

Abstract

The invention discloses a metal dust pollution on-line monitoring device for an insulator. The metal dust pollution on-line monitoring device for an insulator comprises a state monitoring device, a wind speed and wind direction sensor, a rainfall sensor and a temperature and humidity sensor, wherein the wind speed and wind direction sensor, the rainfall sensor and the temperature and humidity sensor are connected with the state monitoring device; the state monitoring device includes a microcontroller, a data storage unit and a dust concentration sensor; the data storage unit and the dust concentration sensor are connected with the microcontroller; the state monitoring device is also connected with a system power supply and a GPRS / 3G communication module; the GPRS / 3G communication module is connected with a background monitoring center and the system power supply; and the wind speed and wind direction sensor, the rainfall sensor and the temperature and humidity sensor are connected with the microcontroller. The metal dust pollution on-line monitoring device for an insulator solves the problems that a leakage current method in the prior art is easily interfered by electromagnetism so that misdeclaration and declaration failure is easy to occur, or a fiber salt deposit density monitoring method cannot reflect the accumulated degree of metal dust for the special environment of steel works, and cannot accurately monitor the pollution degree of an insulator of the steel works. The invention discloses a monitoring method by using the metal dust pollution on-line monitoring device for an insulator.

Description

technical field [0001] The invention belongs to the technical field of on-line monitoring of power transmission lines, and relates to an on-line monitoring device for insulator metal dust pollution. The invention also relates to a monitoring method using the online monitoring device. Background technique [0002] The iron and steel plant involves metal (or its compound) welding, metal processing, smelting and other production processes, which will produce metal dust such as aluminum, iron, tin, lead, manganese and other metals and their compound dust; when there is high pressure near the iron and steel plant When overhead wires are used, the insulator not only has ordinary dust attached to the surface, but also a large amount of metal dust attached to the surface, which affects the insulation level of the insulator, especially when the surface of the insulator is damp, it is more likely to cause insulation breakdown and flashover, resulting in line tripping , Insulator dama...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide an on-line monitoring device for insulator metal dust pollution, which solves the problem that the leakage current method in the prior art is susceptible to electromagnetic interference and is prone to false positives and false negatives, or the optical fiber salt density monitoring method cannot be aimed at the special environment of the steel plant. Reflecting the degree of accumulation of metal dust, it is impossible to accurately monitor the pollution degree of insulators in steel plants

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