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Steel rail current drainage net transition resistance monitoring system and control method thereof

A transition resistance and monitoring system technology, applied in the field of rail transit, can solve the problems of manual wiring and reading errors, large labor consumption, random sampling, etc., and achieve the effects of ensuring reliability, saving space and cost, and reducing wiring.

Active Publication Date: 2018-06-15
SOUTHWEST JIAOTONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the transition resistance of the rail to the drainage network is mostly detected manually, which has the following defects: randomness in sampling; large errors in manual wiring and readings; large manpower consumption and long detection cycle

Method used

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  • Steel rail current drainage net transition resistance monitoring system and control method thereof
  • Steel rail current drainage net transition resistance monitoring system and control method thereof
  • Steel rail current drainage net transition resistance monitoring system and control method thereof

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Embodiment Construction

[0033] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0034] like figure 1 As shown, a rail-to-drain network transition resistance monitoring system includes an intelligent control module, a high-precision measurement module and a power supply module; the intelligent control module and the microcomputer management system are connected through an Ethernet interface; The drainage branch of the cabinet is connected through a communication cable to control the on-off of the power supply module and the drainage branch; the intelligent control module is connected to the high-precision measurement module and OVPD through a communication cable; OVPD has encoded the address, recorded the installation location, the length of the monitoring section, recorded the length of the monitoring section, and established a database to store and manage various information and monitoring data.

[0035] like ...

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Abstract

The invention discloses a steel rail current drainage net transition resistance monitoring system and a control method thereof. The steel rail current drainage net transition resistance monitoring system is characterized in that an intelligent control module is connected with a microcomputer management system through an Ethernet interface to receive a command from the microcomputer management system and upload the error information and the monitoring result to the microcomputer management system; the intelligent control module is connected with a steel rail potential limitation device througha communication cable to receive the operating state information of the steel rail potential limitation device; the intelligent control module is connected with a current drainage branch switch in a current drainage cabinet through a communication cable so as to control the current drainage branch to be maintained in a turned off state during the monitoring process; the intelligent control moduleis connected with a power supply module through a communication cable to receive the current data and control on / off of the power supply module; and the intelligent control module is connected with ahigh precision measurement module through a communication cable to receive the voltage data and calculate, display, upload and save the steel rail drainage net transition resistance according to the current and the voltage. The steel rail current drainage net transition resistance monitoring system has the advantages of being accurate in monitoring, being simple in operation, being high in reliability, and being easy for maintenance.

Description

technical field [0001] The invention relates to the field of rail transportation, in particular to a rail-to-drainage network transition resistance monitoring system and a control method thereof. Background technique [0002] The power supply of urban rail transit usually adopts a suspended ungrounded DC power supply system, and the steel rail is used as the return path of the train current. Due to the longitudinal resistance of the rail itself, and the rail is installed on the ground through fasteners, there is a certain transition resistance to the ground. When the current flows, a voltage to the ground will be generated on the rail, that is, the rail potential. Excessive rail potential will threaten the safety of personnel, and due to the existence of transition resistance between the rail and the drainage network, part of the current flowing through the rail leaks underground and becomes a stray current. Stray currents have a corrosive effect in the form of electrolysis...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R27/16
CPCG01R27/16Y02P90/02
Inventor 刘炜唐靖坤王沛沛桑国阳赵佳微张戬
Owner SOUTHWEST JIAOTONG UNIV
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