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

Insulator leakage current measuring device based on tunnel magnetoresistive chip

A leakage current and tunnel magnetoresistance technology, applied in the field of electronic information, can solve the problem of single leakage current feature set, and achieve the effect of expanding application space and scenarios, reducing volume, and improving versatility

Active Publication Date: 2021-06-01
CHINA ELECTRIC POWER RES INST +2
View PDF9 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] To sum up, the current measurement methods of insulator leakage current mostly adopt the form of transformer, the setting of leakage current characteristic quantity is relatively simple, and it is impossible to carry out broadband measurement of current

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
  • Insulator leakage current measuring device based on tunnel magnetoresistive chip
  • Insulator leakage current measuring device based on tunnel magnetoresistive chip
  • Insulator leakage current measuring device based on tunnel magnetoresistive chip

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0032] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. The components of the embodiments of the invention generally described and illustrated in the figures herein may be arranged and designed in a variety of different configurations.

[0033] Accordingly, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art wi...

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 an insulator leakage current measuring device based on a tunnel magnetoresistive chip. The insulator leakage current measuring device comprises a buckle-type current acquisition ring and a current sensor, wherein the buckle-type current acquisition ring comprises a snap ring body, the upper surface of the snap ring body is provided with a confluence wire, the lower surface of the snap ring body is provided with a confluence metal ring, and the confluence wire is conducted with the confluence metal ring through a plurality of drainage wires; and the current sensor comprises a buckle-type sensing part and a current sensing chip part, the bus wire penetrates through the buckle-type sensing part, and the current sensing chip part is connected with the outside through a plurality of electrical connection ports. According to the insulator leakage current measuring device based on the tunnel magnetoresistive chip provided by the invention, a cross-core type current sensor structure is formed by using an open type magnetism gathering ring structure, the magnitude of leakage current in an insulator can be directly measured, and great feasibility is provided for field installation of a sensor. Meanwhile, the tunnel magnetoresistive chip is used for improving the measurement sensitivity, reducing the noise, reducing the size of the sensor, and achieving the solution of engineering installation convenience and leakage current accuracy measurement.

Description

technical field [0001] The invention belongs to the technical field of electronic information, and relates to a current measurement and evaluation method, in particular to a leakage current measurement device based on a tunnel magnetoresistance chip insulator. Background technique [0002] Insulators are important voltage-resistant devices and connecting parts in power systems, usually made of glass or ceramics, and play an important role in supporting wires and preventing current from returning to ground in overhead transmission lines. When the environmental humidity changes on site, the surface of the insulator is too polluted, and the surface of the insulator is covered with ice, the dirty substances attached to the surface of the insulator will increase the conductivity and reduce its insulation performance. An accidental power outage will result. The current power consumption has increased significantly, and the voltage level has been increased repeatedly, which has in...

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): G01R31/52G01R1/04
CPCG01R31/52G01R1/04
Inventor 王兰若仝杰焦飞李荡张明皓
Owner CHINA ELECTRIC POWER RES INST
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

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com