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Cable fault locating device and cable detecting system

A locating device and cable fault technology, which is applied in the direction of fault location and fault detection according to conductor type, can solve the problems of low fault location accuracy and unfavorable reliable operation of underground cables

Pending Publication Date: 2018-08-03
GUANGDONG POWER GRID CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The existing technology used to find the location of the fault point is seriously affected by the interference of clutter signals, resulting in low accuracy of fault location, which is not conducive to the reliable operation of underground cables

Method used

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  • Cable fault locating device and cable detecting system
  • Cable fault locating device and cable detecting system
  • Cable fault locating device and cable detecting system

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Embodiment Construction

[0025] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the present invention, not all of them. the embodiment. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0026] The current device used to find the location of the fault point is seriously affected by the interference of clutter signals, resulting in low accuracy of fault location, which is not conducive to the reliable operation of underground cables. Based on this, a cable fault location device and a cable detection system provided by the embodiments of the present invention can effec...

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Abstract

The invention provides a cable fault locating device and a cable detecting system, which is within the technical field of power cable maintenance. The cable fault locating device comprises a linear array unit of acoustic and magnetic sensors, a signal conversion unit, a filter amplification unit, a data processing unit and an output unit which are sequentially connected. The device can convert themagnetic signal and the sound signal in the environment where the cable is located into a voltage signal, and filter and amplify the voltage signal. Then, the voltage signal after filtering and amplification is subjected to fault location analysis processing and the fault location analysis result is output. The method can effectively improve the accuracy of cable fault location by the device.

Description

technical field [0001] The invention relates to the technical field of power cable maintenance, in particular to a cable fault location device and a cable detection system. Background technique [0002] In recent years, with the implementation of metropolitan area network transformation, power cables have been more and more widely used. Compared with the overhead line, the power cable is installed in the underground space, which has the advantages of reliable power transmission and less environmental pollution. It does not need to occupy the ground area to ensure personal safety, and can also increase the transmission energy of the transmission line. However, once the cable fails, it will be difficult to find it. If it is not handled in time, it will not only waste a lot of manpower and material resources, but also cause inestimable power failure losses. Obviously, quickly and accurately finding the location of the fault point has a positive effect on the reliable operation...

Claims

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Application Information

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IPC IPC(8): G01R31/08
CPCG01R31/083
Inventor 孙杭毓梁基广向岳彭群斌
Owner GUANGDONG POWER GRID CO LTD
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