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Method for detecting disconnection fault point position of high-speed railway comprehensive through ground wire

A technology that penetrates ground wires and disconnection faults, and is applied in the direction of the fault location, which can solve problems such as time-consuming, large amount of engineering, and low efficiency

Inactive Publication Date: 2013-10-02
SOUTHWEST JIAOTONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In view of the above situation, the main purpose of the present invention is to provide a method for quickly diagnosing the location of the broken fault point of the high-speed railway integrated ground wire. The maintenance method has the disadvantages of large amount of engineering, long time consumption and low efficiency

Method used

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  • Method for detecting disconnection fault point position of high-speed railway comprehensive through ground wire
  • Method for detecting disconnection fault point position of high-speed railway comprehensive through ground wire
  • Method for detecting disconnection fault point position of high-speed railway comprehensive through ground wire

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specific Embodiment approach

[0034] A kind of embodiment of the inventive method is as follows:

[0035] Step 1: Select a section with a uniform geological structure on the high-speed railway line, and find two adjacent horizontal connecting lines connecting the comprehensive through-ground line 1 and the rail choke coil on this section. Set the current sensor 2 at the connecting points A and B connected by the horizontal connecting line, and record the distance L between the two connecting points (two measuring points) 0 .

[0036] Step 2: When the integrated through-ground wire is in good condition, no disconnection occurs, and the train passes on the rail near the measurement point, the signals of each current sensor are collected synchronously, and the sensor closest to the train is set as the first sensor, and Use this measurement point as a reference point, and set the sensor farther from the train as the second sensor. When a broken line fault occurs in the integrated ground wire and the train pa...

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Abstract

The invention discloses a method for detecting a disconnection fault point position of a high-speed railway comprehensive through ground wire. According to the method, current sensors are disposed at two adjacent connecting points where the comprehensive through ground wire and steel rail choking coils are transversely connected, signals of sensors before any disconnection fault and after the disconnection fault are respectively measured, coefficient of proportionality of the two sensor current signals are then obtained and are brought into relative formulas for processing, and the disconnection fault point position of the comprehensive through ground wire is obtained. According to the method, the comprehensive through ground wire does not need to be dig out from earth segment by segment, the normal operation of trains is not affected, engineering amount of the overhaul of the comprehensive through ground wire is substantially reduced, the overhaul time is shortened, and overhaul efficiency is improved.

Description

technical field [0001] The invention relates to a method for detecting the position of a broken fault point of a comprehensive through-ground line of a high-speed railway, belonging to the technical field of railway system measurement. Background technique [0002] In recent years, high-speed railways have developed rapidly in my country and have gradually become the backbone of my country's rail transit field, providing important support for alleviating the contradiction between the capacity and volume of my country's railway system. The high-speed railway operates at a high speed, and the traction backflow is large, which leads to a significant increase in the potential of the rail, which poses a serious threat to the safety of personnel and equipment along the line. At the same time, the high-speed railway transportation system has a high degree of automation, and there are many signal equipment (communication and signal equipment) along the line. The ground potential of ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R31/08
Inventor 高仕斌
Owner SOUTHWEST JIAOTONG UNIV
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