Cable fault coarse ranging method based on secondary pulse method

A technology of cable fault and ranging method, which is applied in the direction of fault location and fault detection according to conductor type, etc., can solve problems such as power failure, economic loss, inconvenience, etc., and achieve better system performance, high development efficiency, and easy explanation

Inactive Publication Date: 2019-11-05
蒲芳芳
View PDF0 Cites 3 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] In order to improve the reliability of power supply, these increasing cable faults must be repaired in the shortest time. However, power cables are special transmission lines buried underground, and it is not convenient to directly obser...

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0013] The cable fault rough distance measurement method based on the secondary pulse method includes building a power cable fault distance measurement system based on the LABVIEW virtual instrument development platform. The system mainly includes signal source equipment, sensors, data acquisition cards and computers. Pulse method, the fault test of the faulty power cable is by adding the signal source device to the power cable, the sensor transmits the signal to the data acquisition card, and the data acquisition card transmits the signal to the computer for processing, storage and display; Pulse analysis method, determine the starting time point of the signal pulse to calculate the fault distance, and then display the result; the signal can also be measured manually, and the fault distance is calculated by the cursor positioning method, and then the result is displayed; the acquisition card uses a high-speed sampling frequency . When implemented, the secondary pulse analysis...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention discloses a cable fault coarse ranging method based on a secondary pulse method. The method comprises the following steps: constructing a power cable fault ranging system based on a LABVIEW virtual instrument development platform, wherein the system mainly comprises signal source equipment, a sensor, a data collection card and a computer; performing fault testing on the fault power cable by using the secondary pulse method firstly, wherein the fault testing comprises the steps that the signal source equipment is added on the power cable, the sensor transmits a signal to the datacollection card, and the data collection card retransmits the signal to the computer for processing, storage and display; and through the secondary pulse analysis method, determining a signal pulse starting time point, performing the fault distance computation, and then performing result display, and overlaying the low-voltage pulse reflecting waveforms successively received in twice through the secondary pulse method, wherein two waveforms have one obvious divergence point, and the divergence point is the reflection waveform point of the fault point. The method has the characteristics of being easy to operate and multifunctional, and an echo graph is easy to explain.

Description

technical field [0001] The invention relates to a cable fault distance measurement method in a power system, in particular to a cable fault rough distance measurement method based on a secondary pulse method. Background technique [0002] In order to improve the reliability of power supply, these increasing cable faults must be repaired in the shortest time. However, power cables are special transmission lines buried underground, and it is not convenient to directly observe and find fault points. If the location of the fault point cannot be found out in time, it will not be repaired, resulting in long-term power outages and production stoppages, which will bring huge economic losses and inconvenience to people's lives. Therefore, how to quickly and accurately determine the location of the fault point of the power cable is the premise guarantee for timely repairing the power cable and improving the reliability of power supply. How to choose the fault location method is a sub...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): G01R31/08
CPCG01R31/083
Inventor 蒲芳芳
Owner 蒲芳芳
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap