Insulator contamination on-line monitoring system

Abstract

The invention provides an insulator contamination on-line monitoring system, which comprises a monitoring terminal and a remote monitoring terminal, wherein the monitoring terminal records transmission line information; after meteorological information and insulator leakage current are collected and self-adaption amplification is carried out on the leakage current, the pulse frequency of the leakage current is obtained, the leakage current, the pulse frequency of the leakage current and the meteorological information are stored, and the information is submitted in a short message mode or according to an submitted instruction; when the value of the leakage current is greater than a preset alarm value of the leakage current, alarm information is sent; and system parameters of the monitoring terminal and the preset alarm value of the leakage current are modified according to an modification instruction. The remote monitoring terminal stores and displays the transmission line information, the leakage current, the pulse frequency of the leakage current and the meteorological information and carries out fusion processing on fundamental wave of the leakage current, the pulse frequency of the leakage current and the meteorological information, and the contamination degree on the surface of the insulator is obtained and displayed. The insulator contamination on-line monitoring system has the characteristics of high accuracy, strong real-time performance, fast response and the like and is widely applicable to a power system.

Description

technical field [0001] The invention relates to monitoring technology, in particular to an on-line monitoring system for insulator pollution. Background technique [0002] Pollution flashover is the accumulation of conductive pollutants on the surface of transmission line insulators. After being wet, due to its enhanced conductivity, the insulation level of insulators is greatly reduced, and even a short circuit is formed between insulators, resulting in flashover accidents on transmission lines. The pollution on the surface of insulators is generally divided into two categories: one is natural pollution such as floating ice, fine dust, fog and bird droppings; the other is smoke and dust discharged from thermal power plants, chemical plants, glass factories, cement factories, metallurgical plants and steam locomotives and industrial pollution such as waste gas. [0003] In practical applications, flashover accidents on transmission lines are becoming more and more serious, ...

AI Technical Summary

Problems solved by technology

At present, power operation departments, scientific research institutes and major universities are actively exploring the monitoring technology of insulator leakage current; however, so far, the accuracy of insulator leakage current monitoring technology is relatively low, the prediction degree of insulator leakage current is not high, and the control response slower

[0004] It can be seen that in the existing technology, there are substantive problems such as low measurement accuracy, low predictability, and slow response in the monitoring technology of insulator leakage current.

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