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

Contact ablation degree judgment method based on circuit breaker radiation electromagnetic wave signal detection

A technology of electromagnetic wave signal and determination method, which is applied in the direction of using microwave flaw detection, etc., can solve problems such as complex detection methods, difficult power outages, failure to meet the requirements of power system safety, stability, and economic development, and achieve the effect of rapid diagnosis

Inactive Publication Date: 2020-07-31
STATE GRID CORP OF CHINA +1
View PDF7 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Existing detection and diagnosis methods are unable to meet the requirements of safe, stable and economical development of the power system in terms of safety and economy.
There are a large number of circuit breakers in the power operation site, complex detection methods, and difficult power outages

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
  • Contact ablation degree judgment method based on circuit breaker radiation electromagnetic wave signal detection

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0010] see figure 1 , a method for judging the degree of contact ablation based on the detection of the radiated electromagnetic wave signal of the circuit breaker, which is to receive the radiated electromagnetic wave generated during the opening process of the circuit breaker through the antenna, and use an ordinary oscilloscope to monitor the waveform, and analyze the individual electromagnetic wave pulses per unit time The number of pulses is used to determine the degree of ablation of the circuit breaker contacts; if a large number of pulses is found, it can be determined that the ablation of the contacts is serious.

[0011] The acquisition of radiated electromagnetic waves is mainly done through antenna reception, and then the number of pulses of its waveform is analyzed on an ordinary oscilloscope. See figure 1 , which shows the schematic diagram of radiated electromagnetic waves in three ablation situations of circuit breaker contacts. in, figure 1 (a), (b), and (c...

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 contact ablation degree judgment method based on circuit breaker radiation electromagnetic wave signal detection. The method achieves the quick diagnosis of the ablation degree of a circuit breaker contact through employing the means of electrical measurement and waveform observation. Radiation electromagnetic waves generated in the opening process of the circuit breakerare received through an antenna, waveform monitoring is conducted through a common oscilloscope, the number of electromagnetic wave pulses in unit time is analyzed, and thus the ablation degree of thecontact of the circuit breaker is judged. If the number of pulses is large, it can be judged that the contact is ablated seriously. According to the method, the ablation degree of the contact of thecircuit breaker is quickly judged mainly through an electrical detection means, and the method has the remarkable advantages of intuition, conciseness, quickness, high efficiency and the like.

Description

technical field [0001] The invention belongs to the field of defect detection of electrical equipment in a power system, in particular to a method for judging the ablation degree of contacts based on the detection of circuit breaker radiation electromagnetic wave signals. It is suitable for detecting internal defects of circuit breakers. Background technique [0002] In the prior art, the circuit breaker is mainly used in the power system to automatically cut off the circuit when serious overload, short circuit, undervoltage and other faults occur, so as to control the stability of the power system voltage. Under long-term working conditions, the contacts of the circuit breaker will be ablated due to the high temperature and high pressure environment during the opening process, and the ablated contacts will affect the opening performance of the circuit breaker, resulting in inflexible operation, Faults such as failure to open the gate seriously threaten the safety and stabl...

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): G01N22/02
CPCG01N22/02
Inventor 满晓平刘楠苏新刘帅杨立伟赵炳然蒋进王楚桥
Owner STATE GRID CORP OF CHINA
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