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

PCB-type traveling wave sensor

A traveling wave sensor and induction line technology, applied in the fault location and other directions, can solve the problems of low anti-interference ability and low precision, and achieve the effect of high transient stability, sensitive reflection and high linearity

Inactive Publication Date: 2009-10-28
CHANGSHA UNIVERSITY OF SCIENCE AND TECHNOLOGY
View PDF0 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In order to solve the problems of low precision and low anti-interference ability of the existing traveling wave extraction method, the present invention provides a PCB traveling wave sensor with simple structure, consistent traveling wave signal output height and strong anti-interference ability

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
  • PCB-type traveling wave sensor
  • PCB-type traveling wave sensor

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0011] see figure 1 , the PCB traveling wave sensor consists of an upper panel (1) and a lower panel (2), and the upper panel (1) includes: a secondary induction coil (3), a primary flow loop (4), a through hole (5), A primary signal port (6) and a secondary coil output terminal (7); the lower panel (2) includes: a secondary induction coil (3), a through hole (5) and a secondary coil output terminal (7). In the PCB type, the inner ring through holes are staggered and arranged in two rows. When a transient traveling wave signal is input into the primary signal interface (6), a sudden change current is generated in the primary flow loop (4), and a sudden change signal is induced in the secondary induction coil (3), and at the same time, the secondary line is perpendicular to The direction of the PCB type generates an electromagnetic field, and the electromagnetic fields generated by the secondary lines in the upper panel and the lower panel are equal in size and opposite in dir...

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 belongs to the field of power system and relates to a PCB-type traveling wave sensor. The sensor consists of an upper panel and a lower panel; the upper panel forms a dual-layer plate, wherein one layer is an induction wire row and the other layer is a one-step throughflow annulus; the lower panel forms a single-layer plate which is an induction wire row, the lower panel forms a corresponding surface with the mirror image of the upper panel; the upper panel and the lower panel are superposed with the one-step throughflow annulus clamped in the middle; the upper panel induction wire and the lower panel induction wire are connected sequentially by through holes; in the PCB-type, internal through holes are crossly staggered to two rows; and the upper induction wire and the lower panel induction wire and the through holes commonly form a coil which surrounds the one-step throughflow annulus. The PCB-type traveling wave sensor is used for extracting the power network failure traveling wave signals, sufficiently utilizes the space of the circuit board, avoids the interference of the external electromagnets, has extremely high detection precision and is suitable for positioning and protecting traveling wave.

Description

technical field [0001] The invention belongs to the technical field of high-voltage transmission network fault diagnosis, and in particular relates to a PCB type traveling wave sensor. Background technique [0002] Transient traveling wave signal extraction is one of the key technologies for transmission line fault traveling wave location and protection. Most of the existing transient traveling wave signal extraction methods extract the transient traveling wave signal from the secondary side of the current transformer or from the capacitive device by using special equipment. However, with the continuous growth of power transmission capacity and continuous improvement of voltage levels, traditional electromagnetic induction current transformers have exposed more and more shortcomings: inherent magnetic saturation, ferromagnetic resonance, small dynamic range, applicable frequency band Narrow, complicated manufacturing process, difficult insulation, etc. Traditional current ...

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): G01R31/08
Inventor 秦小安曾祥君廖振张戈力楚湘辉
Owner CHANGSHA UNIVERSITY OF SCIENCE AND TECHNOLOGY
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