Hidden trouble traveling wave detection device for effectively inhibiting interference based on external sensor

Abstract

The invention discloses a hidden trouble traveling wave detection device for effectively inhibiting interference based on an external sensor, and the device is installed on a power transmission line.The device is characterized in that the device comprises a hidden trouble sensor for detecting a traveling wave of the line, an integrated circuit board which is used for the amplifying, filtering andconverting of a traveling wave current, and an electricity obtaining iron core for supplying power to the whole device; the output end of the hidden trouble sensor is connected with the input end ofthe integrated circuit board through a signal cable; the hidden trouble traveling wave detection device is installed on the power transmission line through a central power transmission line duct. Thedevice employs the iron core electricity obtaining technology, can meet the power demands of the whole hidden trouble traveling wave detection device sufficiently and effectively, and avoids the providing of an external power supply or the maintenance of the power supply. The device effectively avoids the magnetic leakage interference caused by the electricity obtaining iron core in an electricityobtaining process, so as to cover an original traveling current waveform, and improve the accuracy and reliability of the hidden trouble traveling wave detection device.

Description

technical field [0001] The invention relates to a hidden danger traveling wave detection device based on an external sensor that effectively suppresses interference, and belongs to the technical field of hidden danger traveling wave current detection of power transmission lines. Background technique [0002] As an important part of the power grid, transmission lines are distributed in various harsh environments such as cities, rural areas, and forests. Hidden defects such as foreign matter attachment, corrosion and deformation of metal fittings, and insufficient cross-span distance all exist objectively. If they are not discovered and eliminated in time, accidents such as line tripping and wire disconnection may occur. Great security impact and economic loss. [0003] Common hidden dangers of transmission lines include deterioration of composite insulators, floating discharge of conductor fittings, vegetation discharge, pollution flashover of insulators, ice flashover of in...

AI Technical Summary

Problems solved by technology

[0004] At present, hidden defects and hidden dangers of transmission lines are mainly found by manual regular inspection. Meet the requirements of intelligent management level of power grid

In recent years, with the rapid development of data collection and communication technology, new methods of hidden danger monitoring have emerged, such as ultraviolet imaging, infrared imaging, image recognition, etc. Compared with traditional manual line inspection methods, new methods are not only very It liberates manpower to a large extent and is also applied in engineering, which promotes the development of transmission line hidden danger monitoring in the direction of real-time and intelligentization, but its work efficiency and cost input cannot meet the requirements of widespread promotion

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