Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Ground fault search instrument, and ground fault point search method and system

A technology for grounding faults and faulty lines, applied in the fault location, detecting faults according to conductor types, instruments, etc., can solve the problems of difficulty in finding ground fault points, long-term power outages, and complicated lines, so as to shorten the fault finding time and improve work efficiency. Efficiency, the effect of reducing economic losses

Active Publication Date: 2017-05-10
CHENGWU POWER SUPPLY CO STATE GRID SHANDONG ELECTRIC POWER CO LTD +1
View PDF12 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] With the rapid development of the national economy, the load of power circuits is increasing. In order to meet the requirements of economic development, the low-voltage distribution network has also undergone The number of devices connected to the power network and the length of the lines have doubled. Since the low-voltage distribution network is connected to thousands of households, the lines are complex and the environment is complex. Once a ground fault occurs, it will be very difficult to find it, and the search efficiency is low. The phenomenon of power outages not only caused economic losses to power users, but also brought negative impacts on social and economic benefits.
[0003] Aiming at the above-mentioned problem of finding the ground fault point difficultly, leading to long-term power outages, and causing economic losses to power users, no effective solution has been proposed so far.

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

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Ground fault search instrument, and ground fault point search method and system
  • Ground fault search instrument, and ground fault point search method and system
  • Ground fault search instrument, and ground fault point search method and system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] figure 1 A schematic structural diagram of a ground fault point finder provided by an embodiment of the present invention is shown, including: a ground fault point finder body 10 and a ground test electrode 20, wherein the ground test electrode includes a first test electrode and a second test electrode ,exist figure 1 Only one test pole is shown. Wherein, the first test pole is used to connect the starting end of the faulty line; the second test pole is used to connect each down line of the faulty line.

[0031] The above-mentioned first test pole and second test pole also include a data line 201, a data line interface 202, an insulating telescopic rod 205, a handle 203 and a test head 206; wherein, the test head 206 includes a test point ( figure 1(not shown in the figure), the insulating telescopic rod 205 and the handle 203 are hollow structures, and the data cable 201 passes through the hollow structure to connect the test head 206 and the data line interface 202...

Embodiment 2

[0040] In order to facilitate the further understanding of the ground fault point finder provided by the above embodiments, on the basis of the above embodiments, the embodiments of the present invention also provide a method for finding ground fault points, which applies the ground fault point described in the above embodiments Troubleshooter, such as image 3 As shown in the flowchart, the method includes the following steps:

[0041] Step S302, connecting the first test pole to the starting end of the faulty line;

[0042] Step S304, move the ground fault point finder and the second test pole along the faulty line, connect the second test pole to each downline of the faulty line, and measure the voltage value at each downline;

[0043] Step S306, when the voltage value of each downline is less than the set threshold, the ground fault point finder will give an alarm prompt, and the ground fault point finder will send the location of the downline to the server.

[0044] In ...

Embodiment 3

[0048] Corresponding to the ground fault point finder and the ground fault point search method provided by the above embodiments, the embodiment of the present invention further provides a ground fault point search system, Figure 4 A structural block diagram of a ground fault point finding system provided by an embodiment of the present invention is shown. The system includes a server 400 and a plurality of ground fault point finding instruments, and the ground fault point finding instruments communicate wirelessly with the server. in, Figure 4 Only two ground fault point finders are shown in the figure, namely, the ground fault point finder 401 and the ground fault point finder 402. In actual use, the number of the ground fault point finder can be set according to the actual situation. This embodiment of the invention does not limit this.

[0049] In specific implementation, a client 403 for dispatchers can also be provided on the side of the server 400. When line inspecti...

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 present invention relates to a ground fault search instrument, and a ground fault point search method and system, and relates to the electrical instrument technology field. The ground fault search instrument comprises a ground fault search instrument body and a ground test pole consisting of a first test pole, a second pole and a switch key, the first test pole is configured to connect the starting end of a fault line, the second test pole is configured to connect each inserting coil position connected with the fault line, and the ground fault point search instrument body comprises a controller, a power module, a voltmeter and an alarm which are arranged in the housing. The ground fault search instrument provided by the invention is configured to connect the first test pole and the second test pole with the starting end and the inserting coil position of the fault line to gradually reduce the range of the area where the fault points are located through the test of the changing of the fault line voltage value, shorten the fault search time, improve the maintainers' work efficiency and reduce the electricity users' financial loss caused by long-time power failure.

Description

technical field [0001] The invention relates to the technical field of electrical instruments, in particular to a ground fault point finder, a ground fault point search method and a system. Background technique [0002] With the rapid development of the national economy, the load of power circuits is constantly increasing. In order to meet the requirements of economic development, the low-voltage distribution network has also undergone several transformations, and the connection lines have become increasingly mature. The number of devices connected to the electrical network and the length of the lines have doubled. Since the low-voltage distribution network is connected to thousands of households, the lines are complex and the environment is complex, once a ground fault occurs, it will be very difficult to find, the search efficiency is low, and it will also lead to a long time. The phenomenon of power outages not only causes economic losses to electricity users, but also ne...

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): G01R31/08G01R1/02
CPCG01R1/02G01R31/086
Inventor 牛德成张法忠刘娜贾飞宋春英闫凌涛姚慧勇孙久仓惠所信
Owner CHENGWU POWER SUPPLY CO STATE GRID SHANDONG ELECTRIC POWER CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products