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A transmission line fault and abnormal discharge monitoring system and method

A technology for abnormal discharge and transmission lines, applied in the direction of measuring electricity, measuring devices, measuring electrical variables, etc., can solve the problems of small monitoring area, high cost, and large flow consumption, and achieve the effect of improving the accuracy of fault location

Active Publication Date: 2022-05-24
GUIZHOU POWER GRID CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The technical problem to be solved by the present invention is to provide a transmission line fault and abnormal discharge monitoring system and method to solve the problem that existing technologies use infrared imagers, laser rangefinders, etc. The shortcomings of small area, large traffic consumption, and high cost, manual inspections have technical problems such as low immediacy and heavy workload

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  • A transmission line fault and abnormal discharge monitoring system and method
  • A transmission line fault and abnormal discharge monitoring system and method
  • A transmission line fault and abnormal discharge monitoring system and method

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Embodiment Construction

[0046]The present invention generally adopts video visual monitoring or traditional manual line inspection to monitor the existing tree barriers, insulator pollution, metal fittings floating discharge and other progressive faults, and uses infrared imagers, laser rangefinders and other methods to conduct investigations on site. Video visualization monitoring has the shortcomings of small monitoring area, large flow consumption and high cost, and manual inspection has the shortcomings of low immediacy and large workload. Referring to a transmission line fault and abnormal discharge monitoring system and method, the system mainly includes three The functions of each part are as follows:

[0047] Monitoring terminal - installed on the body of the transmission line, adopts the composite function method of coupling power extraction + solar energy extraction, collects abnormal discharge waveforms, fault waveforms and power frequency waveforms existing on the transmission line, and tr...

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Abstract

The invention discloses a transmission line fault and abnormal discharge monitoring system, which includes: a monitoring terminal: collecting waveforms, and dividing the collected waveforms into power frequency waveforms, discharge current waveforms and fault traveling wave current waveforms, forming machine codes Return to the data center via wireless; data center: receive the waveform information returned by the monitoring terminal, restore the original waveform data by means of analysis and save it in the corresponding table structure, and process and analyze the original waveform data at the same time, and store the analysis results Preservation; front-end display system: read the data content in the table structure of the data center, and display it visually; solve the problem of using infrared imagers, laser rangefinders, etc. on-site in existing technologies, and there are monitoring areas in video visual monitoring Small size, large traffic consumption, and high cost. Manual inspections have technical problems such as low immediacy and heavy workload.

Description

technical field [0001] The invention belongs to the power transmission line monitoring technology, and in particular relates to a power transmission line fault and abnormal discharge monitoring system and method. Background technique [0002] The environment in which the transmission line is located is complex, and line tripping accidents often occur due to various external factors. Such external factors that cause line tripping include instantaneous tripping faults caused by lightning strikes, external ruptures, etc., as well as tree barriers, Gradual faults caused by contamination of insulators, floating discharge of metal fittings, etc., there is an essential difference in the time required for the two to develop to fault tripping. Faults such as tree barriers, contamination of insulators, and floating discharge of metal fittings cause faults to trip before tripping. There is a long pre-discharge process, which usually takes several days to more than ten days depending on...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01R31/12G01R31/58
CPCG01R31/1272G01R31/58
Inventor 曾华荣毛先胤黄欢马晓红卢金科张强永罗国强张露忪吴建蓉邱实
Owner GUIZHOU POWER GRID CO LTD
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