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

Breaker switch-on-off gate spring ultrasound monitoring device and method

A technology for opening and closing springs and ultrasonic monitoring, which is applied in circuit breaker testing, using sound waves/ultrasonic waves/infrasonic waves to analyze solids, etc., can solve problems such as circuit breaker opening and closing spring monitoring, circuit breaker safety hazards, etc. Operation, low price, wide range of effects

Active Publication Date: 2015-06-17
STATE GRID CORP OF CHINA +2
View PDF7 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, there is no device and method for monitoring the opening and closing spring of the circuit breaker, which makes the circuit breaker have serious safety hazards

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
  • Breaker switch-on-off gate spring ultrasound monitoring device and method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0024] Below in conjunction with accompanying drawing and specific embodiment the present invention is described in further detail:

[0025] When the circuit breaker spring breaks due to excessive fatigue, it will be accompanied by the emission of an acoustic signal. The purpose of early warning of faults is achieved by detecting acoustic signals. When the circuit breaker is in a normal state, there is no sound wave, and when it is faulty, it will emit sound waves. Specifically, a piezoelectric vibration sensor is arranged on the surface of the circuit breaker casing, so that the sound wave generated when the spring fails is transmitted to the piezoelectric vibration sensor 1 through the circuit breaker casing 10 . The piezoelectric vibration sensor 1 converts the received acoustic signal into an electrical signal and sends it to the detection equipment, and the signal detection equipment amplifies the electrical signal, filters it, and then sends it to the computer 13 in the...

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

PropertyMeasurementUnit
thicknessaaaaaaaaaa
Login to View More

Abstract

The invention provides a breaker switch-on-off gate spring ultrasound monitoring device which comprises a piezoelectric vibration sensor, a front-arranged amplifier, a high-pass filter, a main signal amplifier, a rectifier filter, a comparison circuit, an output circuit, a computer, an alarming device and a magnet. A signal output end of the piezoelectric vibration sensor is connected with the high-pass filter through the front-arranged amplifier. The high-pass filter is connected with the rectifier filter through the main signal amplifier. The rectifier filter is connected with the output circuit through the comparison circuit. The output circuit is connected with the computer which is connected with the alarming device. The piezoelectric vibration sensor is attracted on a breaker outer shell provided with a spring through the magnet. A coupling agent coating layer is arranged between the breaker outer shell and the magnet. According to the breaker switch-on-off gate spring ultrasound monitoring device, an acoustic emission technique is used, sound waves generated when the breaker spring is broken caused by fatigue are monitored on line, and accordingly the purpose of spring fault early warning is achieved.

Description

technical field [0001] The invention relates to the technical field of online fault monitoring of electrical equipment, in particular to an ultrasonic monitoring device and method for opening and closing springs of circuit breakers. technical background [0002] High-voltage circuit breakers are very common in power systems. They play a role in controlling and protecting power systems and are extremely important primary equipment in power systems. The circuit breaker is the switching device of the power system. When the power system is in normal working condition, the circuit breaker is in a static state. Compared with other system equipment, the circuit breaker not only has very high reliability but also has instantaneous Act quickly when necessary or when an accident occurs, so that the power supply equipment is switched on or off. The circuit breaker operating mechanism is the core part of the circuit breaker. In the long-term production practice, technicians have found ...

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 Patents(China)
IPC IPC(8): G01R31/327G01N29/04
Inventor 穆广祺赵云峰聂德鑫卢文华方超张海龙邱虎
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