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

Surge protector resistive current extracting device based on correlation coefficient and method thereof

A surge protector and resistive current technology, which is applied in the field of electrical equipment testing, can solve the problems of large extraction errors of weak resistive components, and achieve the effect of reducing nonlinear characteristic interference

Active Publication Date: 2018-11-23
NANJING UNIV OF INFORMATION SCI & TECH
View PDF15 Cites 3 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This method has a better effect when extracting the larger resistive component in the leakage current, but the extraction error of the weak resistive component is larger

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
  • Surge protector resistive current extracting device based on correlation coefficient and method thereof
  • Surge protector resistive current extracting device based on correlation coefficient and method thereof
  • Surge protector resistive current extracting device based on correlation coefficient and method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0020] Below in conjunction with accompanying drawing, technical scheme of the present invention is described in further detail:

[0021] Such as figure 1 As shown, the present invention is based on the correlation coefficient surge protector resistive current extraction device, including a tangent function circuit, a first multiplier, a second multiplier, a first integrator, a second integrator, a first divider, The second divider; the output end of the tangent function circuit is respectively connected with the input end of the first multiplier, the input end of the second multiplier, and the input end of the second divider; the output end of the first multiplier is connected with the first integrator The input end of the first integrator is connected; the output end of the first integrator is connected with the input end of the first divider; the output end of the second multiplier is connected with the input end of the second integrator; the output end of the second integr...

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 relates to a surge protector resistive current extracting device based on a correlation coefficient and a method thereof, and belongs to the technical field of electrical equipment testing. The surge protector resistive current extracting device includes a tangent function circuit, a first multiplier, a second multiplier, a first integrator, a second integrator, a first divider, anda second divider. The output end of the tangent function circuit is connected with the input end of the first multiplier, the input end of the second multiplier, and the input end of the second divider. The output end of the first multiplier is connected to the input end of the first integrator. The output end of the first integrator is connected to the input end of the first divider. The output of the second multiplier is connected to the input end of the second integrator. The output end of the second integrator is connected to the input end of the first divider. The output end of the firstdivider is connected to the input end of the second divider. The surge protector resistive current extracting device has the advantages of reducing the nonlinear characteristic interference of a surgeprotector, avoiding the interference of grid voltage harmonics, and improving the accuracy of online monitoring.

Description

technical field [0001] The invention relates to a surge protector resistive current extracting device and a method based on a correlation coefficient, and belongs to the technical field of electrical equipment testing. Background technique [0002] Surge protectors are widely used in lightning overvoltage and operating overvoltage protection in power systems and communication systems. Due to the long-term influence of working voltage, instantaneous lightning impulse, overvoltage and ambient temperature and humidity, the electrical parameters of the core ZnO varistor of the surge protector will age and deviate from the initial performance index. Not only does it not have a protective effect, but it also affects the normal operation of power and communication system equipment. If it is not replaced in time, the safe operation of the protected system will be seriously threatened. Real-time monitoring of the performance status of surge protectors is of great significance to th...

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): G01R31/00G01R31/08
CPCG01R31/003G01R31/088
Inventor 徐伟盛沨行鸿彦
Owner NANJING UNIV OF INFORMATION SCI & TECH
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