Cable fault coarse distance measurement method based on high voltage pulse method

A high-voltage pulse and cable fault technology, which is applied in the direction of fault location and fault detection according to the conductor type, can solve problems such as economic loss, production stoppage, inconvenient observation and detection of fault points, etc., and achieve high development efficiency and save money.

Inactive Publication Date: 2019-11-05
蒲芳芳
View PDF0 Cites 0 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 observe and find fault points.
If the location of the fault point cannot be found in time, it cannot be repaired, resulting in long-term power outages and production stoppages, which will bring huge economic losses and bring inconvenience to people's lives.

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 location method based on the high-voltage pulse method includes building a power cable fault location system based on the LABVIEW virtual instrument development platform. The system mainly includes a signal source device, a data acquisition card and a computer. First, the signal source device uses a high-voltage pulse Using the echo phenomenon when the characteristic impedance of the transmission line changes, a certain voltage is added to the cable core so that it does not burn through and generate discharge; the discharge pulse propagates and reflects in the cable, and the position of the reflected pulse obtained The proportional relationship information is sent to the data acquisition card, and the data acquisition card transmits the signal to the computer for processing and storage, and then displays the results; the high-voltage pulse method is suitable for high-impedance breakdown; the acquisition card uses high-speed sampling frequency. Durin...

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 distance measurement method based on a high voltage pulse method. The cable fault coarse distance measurement method includes that a cable fault distance measurement system is constructed based on a LABVIEW virtual instrument developing platform. The system mainly includes a signal source device, a data acquisition card, and a computer. Firstly, the signal source device uses the high voltage pulse method to apply a certain voltage on a cable core by using echoing produced when the characteristic impedance of a transmission line changes, so that thecable core is not turned through to cause discharge; a discharge pulse is transmitted and reflected in a cable, information of a position proportional relation of an obtained reflected pulse is transmitted to the data acquisition card, the data acquisition card further transmits a signal to a computer for processing and storage, and then a result is displayed to obtain a fault location.

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 high-voltage 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 ...

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
Patent Type & Authority Applications(China)
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