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

Resistive superconducting fault current limiter

A fault current limiter and superconducting technology, which is applied in superconducting/high-conducting conductors, usage of superconducting elements, circuits, etc., can solve the difficulty of obtaining installation space, increasing manufacturing costs, and increasing the size of superconducting fault current limiters, etc. question

Active Publication Date: 2007-06-06
LSIS CO LTD
View PDF0 Cites 13 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

As a result, the size of the superconducting fault current limiter increases, making it difficult to obtain its installation space, and its manufacturing cost increases

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
  • Resistive superconducting fault current limiter
  • Resistive superconducting fault current limiter
  • Resistive superconducting fault current limiter

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0032] Reference will now be made in detail to the preferred embodiments of the invention, examples of which are illustrated in the accompanying drawings.

[0033] Hereinafter, a resistive superconducting fault current limiter according to the present invention will be explained with reference to the accompanying drawings.

[0034] 2 is a sectional view showing a horizontal structure of a resistive superconducting fault current limiter according to a first embodiment of the present invention.

[0035] As shown in the figure, the resistive superconducting fault current limiter according to the first embodiment of the present invention includes: a superconducting limiter element 21 arranged on the innermost side; a superconducting series coil 22 arranged on the outermost side so as to surround a superconducting limiter element 21 ; and a normal conductor parallel coil 23 arranged between 21 and the superconducting series coil 22 .

[0036] The normal conductor parallel coil 23 ...

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

A resistive superconducting fault current limiter comprises: a superconducting limiter element which is in a superconductive state in the event of a normal current occurrence, and which is in a normal conductive state having a predetermined resistance when a fault current larger than a predetermined threshold current value flows; a superconducting serial coil serially connected to the superconducting limiter element so as to face each other so that a current loss can be minimized accordingly as currents flow in opposite directions thus to cancel magnetic fields, and having a threshold current value greater than the threshold current value of the superconducting limiter element by a predetermined ratio; and a normal conductor parallel coil connected to the superconducting limiter element in parallel and having a predetermined resistance smaller than the resistance of the superconducting limiter element when a fault current occurs, for preventing the superconducting limiter element from being overheated by dividing a current flowing through the superconducting limiter element and for uniformly quenching the superconducting limiter element by generating a magnetic field when a fault current occurs.

Description

technical field [0001] The present invention relates to a resistive superconducting fault current limiter, and more particularly, to a device capable of reducing the current loss of a superconducting limiter element due to its own magnetic field and an external magnetic field when a normal current is applied, and when a fault such as a short circuit is applied A superconducting fault current limiter capable of uniformly quenching the resistance of a superconducting limiter element when a current flows. Background technique [0002] Fault current limiters in power systems are used to limit the mechanical, thermal and electrical stress to bus bars, insulators, circuit breakers, etc. of the power system in the event of fault currents such as short circuits, ground faults and lightning strikes. [0003] A superconducting fault current limiter uses the principle that a superconductor is quenched by a fault current exceeding a threshold current, that is, a superconductor turns int...

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): H02H9/02
CPCY02E40/69H02H9/023Y10S505/85Y02E40/60H01H87/00
Inventor 李眆昱朴权培
Owner LSIS CO LTD
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