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

High-voltage and direct-current quick disconnecting switch

A technology of isolating switch and high-voltage direct current, which is applied in the direction of high-voltage/high-current switch, electric switch, high-voltage air circuit breaker, etc. It can solve the problems of large load of operating mechanism, large length of insulating rod, long stroke of AC isolating switch, etc., to achieve The effect of reducing the load and reducing the length

Active Publication Date: 2014-03-26
TSINGHUA UNIV +1
View PDF5 Cites 5 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Conventional High Pressure SF 6 The stroke of the AC isolating switch is long, the length of the insulating rod between the moving contact and the operating mechanism is large, and the mass of the moving parts is large, so that the load on the operating mechanism is large, and the operating mechanism used is generally a traditional spring operating mechanism , the required operating time is longer, not suitable for high-voltage DC fast disconnectors

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
  • High-voltage and direct-current quick disconnecting switch
  • High-voltage and direct-current quick disconnecting switch

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0019] Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals designate the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary and are intended to explain the present invention and should not be construed as limiting the present invention.

[0020] According to the embodiment of the present invention, the high-voltage direct current quick isolating switch may include: a sealed tank body, a high-voltage electrode, a low-voltage electrode, and the inside of the sealed tank body includes: two insulating basins, four moving contacts, four static contacts, four One conductive contact finger, five insulating supports, three conductive rods, four sets of operating mechanisms, four sets of holding units and four sets of buffer units. The moving contact is driven by the operat...

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 high-voltage and direct-current quick disconnecting switch. The high-voltage and direct-current quick disconnecting switch comprises a sealing tank body, a high-voltage electrode and a low-voltage electrode. Two disc insulators, four moving contacts, four static contacts, four conductive button contacts, five insulating supports, three conducting rods, four operating mechanisms, four keeping units and four buffering units are arranged in the sealing tank body. The moving contacts are driven by the operating mechanisms to make contact with or to be separated from the static contacts. When the moving contacts make contact with the static contacts, the three conducting rods are connected in series so that an electrically-conductive path can be formed between the high-voltage electrode and the low-voltage electrode. When the moving contacts are separated from the static contacts, multiple fractures are formed between the three conducting rods to bear the high voltage between the high-voltage electrode and the low-voltage electrode. The high-voltage and direct-current quick disconnecting switch has the advantages that all the components are arranged in the tank body, the lengths of insulating pull rods are reduced, and therefore loads of the operating mechanisms are reduced, and multi-fracture synchronous rapid separating and combining can be achieved on the premise of the permitted mechanical strength. The high-voltage and direct-current quick disconnecting switch can be applied to 200kV high-voltage situations.

Description

technical field [0001] The invention relates to the technical field of electric equipment, in particular to a high-voltage direct-current fast isolating switch. Background technique [0002] For the multi-terminal DC transmission system, it is necessary for the DC circuit breaker to operate to remove the faults on the DC line and avoid the blocking protection of each converter station in time, so as to ensure that only the faulty line is cut off and the rest of the lines can work normally. With the development of multi-terminal DC transmission systems, DC circuit breakers have become a research hotspot in recent years. Among the currently used hybrid DC circuit breakers, the main component that limits the operating time of the DC circuit breaker is the high-voltage DC fast disconnector. Conventional High Pressure SF 6 The stroke of the AC isolating switch is long, the length of the insulating rod between the moving contact and the operating mechanism is large, and the mass...

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): H01H33/02H01H33/42
Inventor 黄瑜珑温伟杰张祖安刘卫东
Owner TSINGHUA UNIV
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