Strong vibration sensor circuit for high-voltage circuit breaker and signal acquisition system

A technology of vibration sensor and high-voltage circuit breaker, applied in the direction of using electric devices, using electromagnetic means, instruments, etc., can solve the problems of low reliability of strong vibration signal acquisition, and achieve favorable promotion, low cost of components, and offset dispersion Effect

Pending Publication Date: 2017-09-22
JIANGSU ELECTRIC POWER RES INST +4
View PDF7 Cites 7 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Purpose of the invention: In order to overcome the problem of low reliability of strong vibration signal acquisition in the prior art, the purpose of the present invention i

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
  • Strong vibration sensor circuit for high-voltage circuit breaker and signal acquisition system
  • Strong vibration sensor circuit for high-voltage circuit breaker and signal acquisition system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0024] Below in conjunction with accompanying drawing and specific embodiment, the present invention will be further described:

[0025] A strong vibration sensor circuit for a high-voltage circuit breaker disclosed in an embodiment of the present invention includes a charge-voltage conversion unit, a second-order low-pass filter unit, and a multi-stage amplification unit. The charge-voltage conversion unit is connected to the output end of the vibration sensor, and the output voltage signal is filtered by a second-order low-pass filter unit to filter out high-frequency signals, and then normalized by a multi-level amplification unit and amplified to ±5V output.

[0026] figure 1 It is a circuit schematic diagram of a preferred embodiment of the present invention. figure 1 Among them, the vibration sensor adopts a quartz crystal acceleration sensor, such as YD-50. The YD-50 acceleration sensor has a large amplitude linearity, zero return after a large impact, and good stabili...

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 strong vibration sensor circuit for a high-voltage circuit breaker and a signal acquisition system. The circuit comprises a charge-voltage conversion unit, a second-order low pass filter unit and a multi-gear amplifying unit, can receive huge charge quantity produced by a strong vibration signal of a high-voltage-class sensor testing high-voltage circuit breaker and can still work stably even under the situation that an electromagnetic environment is severe. The charge-voltage conversion unit adopts a self-discharge integral circuit having a direct-current eliminating function, the multi-gear amplifying unit adopts a fixed resistor for splicing and gear shifting, the resistance value dispersity is small, gear shifting is accurate, a positioner is designed, the dispersity of a sensor is offset, and the problems of low charge sensitivity at high accelerated speed and poor electromagnetic environment at high voltage class are solved. The circuit is simple in principle, ingenious in design, suitable for occasions where strong vibration is acquired and the electromagnetic environment is severe and is beneficial to popularization, and the costs of voltage classes are low.

Description

technical field [0001] The invention belongs to the technical field of vibration signal measurement of high-voltage circuit breakers, and in particular relates to a strong vibration sensor circuit and a strong vibration signal acquisition system for high-voltage circuit breakers. Background technique [0002] High-voltage circuit breakers are important and typical electrical equipment in power systems, and their operational reliability is crucial. When a fault occurs in the power system, if the circuit cannot be disconnected in time to cut off the fault, a major accident may occur. Therefore, a fault diagnosis system is often designed . The validity and authenticity of vibration signal data collection is the key link of the diagnostic system, and vibration sensors have always played an important role in the fault detection of high-voltage circuit breakers. In the field of higher-level high-voltage circuit breakers, there is an urgent need for large-range, high-reliability v...

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): G01H11/08
CPCG01H11/08
Inventor 赵科杨景刚贾勇勇武建文李德阁冯英王静君刘通李玉杰马速良王昱皓
Owner JIANGSU ELECTRIC POWER RES INST
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap