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Power distribution line fault positioning method

A power distribution line and fault location technology, which is applied in the direction of circuit devices, emergency protection circuit devices, electrical components, etc., can solve the problems of complex and time-consuming fault location in power distribution circuits, and achieve easy promotion and use, simple location process, The effect of high accuracy

Active Publication Date: 2018-11-27
YUNNAN POWER GRID CO LTD ELECTRIC POWER RES INST
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] This application provides a fault location method for distribution lines to solve the problem of complex and time-consuming fault location for existing distribution circuits

Method used

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  • Power distribution line fault positioning method
  • Power distribution line fault positioning method

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Embodiment Construction

[0030] The distribution line fault location method of the present application is used to locate the fault location of the distribution line, wherein the distribution line includes a trunk line and several branch lines, and the trunk line is provided with an exit switch CK and several section controllers FD, Among them, the switch information of the exit switch CK comes from the dispatching automation system, and the switch information of the section controller FD comes from the distribution network automation system. Each branch line is equipped with a branch controller FZ, and the low-voltage side of the distribution transformer is equipped with a distribution transformer monitoring and metering terminal TTU, wherein the information of the branch controller FZ comes from the distribution network automation system, and the terminal information of the metering terminal TTU comes from the metering automation system .

[0031] figure 1 A flow chart of a distribution line fault l...

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Abstract

The invention discloses a power distribution line fault positioning method. Data information of existing scheduling automation, distribution network automation, measurement automation systems and thelike is sufficiently utilized, and acquired data is subjected to comprehensive analysis to rapidly reduce a power distribution line fault range, so that a fault position is rapidly and accurately positioned. The power distribution line fault positioning method disclosed by the invention is simple in positioning process and feasible; a positioning result of the fault position is high and the methodis convenient for wide popularization and application.

Description

technical field [0001] The present application relates to the field of fault detection, in particular to a fault location method for distribution lines. Background technique [0002] With the development of my country's economy and the improvement of people's living standards, people have put forward more and higher requirements for the reliability of power supply. Power outages are the main reason affecting the reliability of power supply. According to statistics, power outages due to faults in the power system account for about 80% of the entire power outage time. Among these power outages, power outages due to line faults account for about 60%. . [0003] When dealing with these line accidents, the time to find faults accounts for 70%-90% of the entire fault processing time. Among them, for high-voltage backbone transmission lines, due to their relatively simple line conditions and special equipment for line fault detection, therefore , the fault finding and processing ...

Claims

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Application Information

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IPC IPC(8): H02H7/26H02H1/00
CPCH02H1/0007H02H7/26
Inventor 王洪林范黎涛聂鼎王科董涛徐肖伟李维项恩新刘红文宋忧乐
Owner YUNNAN POWER GRID CO LTD ELECTRIC POWER RES INST
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