Eureka AIR delivers breakthrough ideas for toughest innovation challenges, trusted by R&D personnel around the world.

Cold-insulating DC high-temperature superconducting current limiting cable

A high-temperature superconducting and cable technology, applied in the direction of insulated cables, insulated conductors, superconducting devices, etc., can solve the problems of increasing the cost of line devices and operation and maintenance costs, reduce device costs and operation and maintenance costs, and suppress fault currents , Improve the effect of mechanical strength

Inactive Publication Date: 2019-10-01
EASTERN SUPERCONDUCTOR SCI & TECH SUZHOU CO LTD +3
View PDF10 Cites 6 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the method of connecting superconducting current limiters in series will increase the cost of line devices and operation and maintenance costs

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
  • Cold-insulating DC high-temperature superconducting current limiting cable
  • Cold-insulating DC high-temperature superconducting current limiting cable

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0023] as attached Figure 1-2 As shown, a cold-insulated DC high-temperature superconducting current-limiting cable includes a cooling channel 1, a stranded wire skeleton, a semiconductor conductor layer I4a, a superconducting layer 5, a semiconductor conductor layer II4b, an insulating layer 6, a shielding layer 7 and a protective layer 8 The cooling channel 1 is set in the stranded wire skeleton; the stranded wire skeleton is wrapped with a semiconductor conductor layer I4a, and the semiconductor conductor layer I4a is wound with a superconducting layer 5, and the superconducting layer 5 is wrapped with a semiconductor conductor layer II4b, The semiconductor conductor layer II4b is wrapped with an insulating layer 6, and the insulating layer 6 is wound with a shielding layer 7, and the shielding layer 7 is wrapped with a protective layer 8; the cooling channel 1 circulates a cooling medium; The conductor layers 5 are connected in parallel; the stranded wire frame includes a...

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 cold-insulating DC high-temperature superconducting current limiting cable, which comprises a cooling channel, a wire stranding frame, a semiconductor conductor layer I, a superconducting layer, a semiconductor conductor layer II, an insulating layer, a shielding layer and a protective layer. The cooling channel is arranged in the wire stranding frame. The wire strandingframe is wrapped with the semiconductor conductor layer I. The superconducting layer is wound outside the semiconductor conductor layer I. The superconducting layer is wrapped with the semiconductor conductor layer II. The semiconductor conductor layer II is wrapped with the insulating layer. The shielding layer is wound outside the insulating layer. The shielding layer is wrapped with the protective layer. A cooling medium is circulated in the cooling channel. The wire stranding frame is connected in parallel with the superconducting layer. The cable of the invention has double functions of transmission and current limitation. The cable does not need to be connected to a superconducting current limiter, and the device cost and the operation and maintenance costs are reduced. The wire stranding frame is made of a high-resistivity metal material, which can better inhibit the fault current when the cable fails. The structure of the wire stranding frame can improve the mechanical strengthand flexibility of the cable.

Description

technical field [0001] The invention relates to the field of superconducting engineering technology, in particular to a cold-insulated DC high-temperature superconducting current-limiting cable. Background technique [0002] With the development of high-temperature superconducting technology, the operating temperature of superconductors has been raised to the liquid nitrogen temperature region (77K). High-temperature superconducting cable is one of the important applications of high-temperature superconducting technology in power systems. It can realize large-capacity and low-loss power transmission. High-temperature superconducting cables are developing rapidly in the direction of practicality and industrialization. [0003] When a line short-circuit fault occurs, the short-circuit current becomes very large, even exceeding the breaking capacity of the circuit breaker, causing damage to the DC power system. However, unlike AC, DC current does not exceed zero, and current l...

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): H01B12/02H01B12/14H01B12/16H01B7/17H01B7/18H01B7/24
CPCH01B7/17H01B7/1895H01B7/24H01B12/02H01B12/14H01B12/16Y02E40/60
Inventor 袁文康强强莫思铭蔡渊王银顺
Owner EASTERN SUPERCONDUCTOR SCI & TECH SUZHOU CO LTD
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
Eureka Blog
Learn More
PatSnap group products