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Power cable fault point positioning method and system

A power cable and positioning method technology, which is applied in the field of power cables, can solve problems such as low efficiency, complicated positioning methods, and inability to quickly locate, and achieve the effects of simple positioning process, reduced implementation costs, and improved efficiency

Inactive Publication Date: 2013-12-11
GUANGZHOU POWER SUPPLY CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Based on this, it is necessary to provide a simple and effective method and system for locating power cable fault points in view of the problems that the general power cable fault point location method is complex, inefficient, and unable to quickly locate

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  • Power cable fault point positioning method and system
  • Power cable fault point positioning method and system
  • Power cable fault point positioning method and system

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Embodiment Construction

[0021] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below according to the drawings and embodiments. It should be understood that the specific implementations described here are only used to explain the present invention, not to limit the present invention.

[0022] like figure 1 As shown, a power cable fault location method, comprising steps:

[0023] S200: setting the optical fiber, and laying the optical fiber and the power cable in close contact.

[0024] An optical fiber is a communication line in which a certain number of optical fibers form a cable core in a certain way, and is covered with a sheath, and some are also covered with an outer sheath to realize optical signal transmission; the cable is composed of several or several groups of wires. A cable of at least two twisted, rope-like cables in which the conductors of each set are insulated from each other ...

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Abstract

The invention provides a power cable fault point positioning method and system. The method includes the steps that an optical fiber is arranged; the optical fiber and a power cable are paved in an attached mode; when a fault occurs to the power cable, voltage pulses are exerted on one end of the power cable so that the power cable breaks down at a fault point; due to the fact that the optical fiber monitors vibration generated when the power cable breaks down, data, monitored by the optical fiber, of vibration generated when the power cable breaks down are collected, and the vibration data are obtained; the position of the fault point of the power cable is calculated according to the vibration data. The whole process is simple and fast, the optical fiber can accurately collect the vibration data of the power cable and transmits the vibration data for processing, and the fact that the whole positioning process is effective and accurate is guaranteed.

Description

technical field [0001] The invention relates to the technical field of power cables, in particular to a method and system for locating fault points of power cables. Background technique [0002] There are four characteristics of the cables in the urban grid power supply system: first, the distribution of power cables is scattered and extensive; It takes a long time to restore power transmission; fourth, the cable laying forms are changeable, and some cables are buried in the middle of the road, making it difficult to locate the fault point. [0003] These factors cause the cables to be frequently damaged by external forces, and the influence is very wide. In order to prevent the cables from being damaged by external forces, it takes a lot of manpower and material resources to inspect the cables every year. Therefore, in order to save inspection costs, it is necessary to develop a cable fault location method and system. [0004] Cable fault point testing instruments at hom...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R31/08
Inventor 黄嘉盛金尚儿刘刚陈继鑫慕容啟华庞远峰
Owner GUANGZHOU POWER SUPPLY CO LTD
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