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

Abstract

The invention discloses a hidden danger traveling wave detection device based on an external sensor that effectively suppresses interference, which is installed on a power transmission line, and is characterized in that it includes a hidden danger sensor for detecting line traveling waves, and is used for traveling wave current amplification, filtering and The converted integrated circuit board, the power-taking iron core used to supply power to the entire device, the output end of the hidden danger sensor is connected to the input end of the integrated circuit board through a signal cable, and the hidden danger traveling wave detection device is opened in the middle The transmission line tunnel is installed on the transmission line. The present invention can fully and effectively supply the power demand of the entire traveling wave current detection device by adopting the iron core power-taking technology, avoiding the trouble of providing an external power supply or performing power supply maintenance and repair; the technology of external sensor effectively isolates the power supply The magnetic flux leakage interference brought by the iron core during the power-taking process covers the original traveling-wave current waveform, improving the accuracy and reliability of the traveling-wave current 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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