High-speed switch

A high-speed switch and static contact technology, applied in the direction of electric switches, high-voltage/high-current switches, high-voltage air circuit breakers, etc., can solve the problem of slow response speed of opening and achieve the effect of fast response speed

Active Publication Date: 2020-11-27
PINGGAO GRP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The purpose of the present invention is to provide a high-speed switch, which is used to solve the problem of slow opening response speed of the existing high-speed switch

Method used

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  • High-speed switch
  • High-speed switch

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specific Embodiment 1

[0031] The high-speed switch of the present invention such as Figure 1-2As shown, it includes the operating unit 1 and the fracture structure. For ease of description, the following description will only be made in the directions shown in the figure, without limiting the actual directions of the components of the high-speed switch during use. Wherein, the fracture structure includes an insulating sleeve 20, and the upper and lower ends of the insulating sleeve 20 are respectively sealed with terminal blocks. A moving contact assembly and a static contact assembly are relatively installed in the insulating sleeve 20. The moving contact assembly includes a moving contact seat fixedly installed on the lower wiring seat and a moving contact 21 guided and slidably installed in the moving contact seat. The head 21 realizes the conduction with the lower wire seat through conductive contact with the movable contact seat. The static contact assembly includes a static contact seat 22...

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Abstract

The invention relates to a high-speed switch. The high-speed switch specifically comprises: a moving contact assembly and a static contact assembly; an operating mechanism; a spring retaining structure mounted on one side, back to the static contact assembly, of the moving contact assembly and used for retaining the moving contact at a switching-on limit position; and a static contact assembly comprising a static contact, an elastic buffer structure and a limiting structure for stopping and limiting the static contact. The elastic acting force provided by the elastic buffer structure to the static contact is greater than the elastic acting force provided by the spring retaining structure to the moving contact. And in the closing process, the moving contact is driven by the operating mechanism to firstly overcome the acting force of the elastic buffer structure to push back the static contact, after the driving force of the operating mechanism is removed, the elastic buffer structure pushes the static contact and reversely pushes the moving contact to return back until the static contact is blocked by the limiting structure, and the moving contact and the static contact are elastically propped against each other. The high-speed switch is high in opening and closing response speed and better in applicability in flexible direct-current power transmission and direct-current power grids.

Description

technical field [0001] The invention relates to the technical field of high-voltage flexible DC transmission switchgear, in particular to a high-speed switch fracture structure and a high-speed switch. Background technique [0002] With the development of clean energy and large-scale grid-connected applications, flexible DC transmission and DC grid technologies have developed rapidly. In order to meet the application needs of flexible DC transmission and DC grid, the circuit breaker for breaking DC fault current at the millisecond level has become a necessary equipment for the transmission network. Therefore, high-speed mechanical switching equipment with extremely short breaking time has become the research of most power equipment manufacturers. main aspect. [0003] In the study of high-speed mechanical switches, there are mainly two aspects. One is the research on the operating mechanism, that is, improving the breaking performance of the high-speed mechanical switch by...

Claims

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Application Information

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IPC IPC(8): H01H33/664H01H33/666H01H3/60H01H1/50
CPCH01H33/664H01H33/666H01H3/60H01H1/50
Inventor 朱继斌钟建英朱秋楠张友鹏孙英杰张亚东门博张利欣胡延涛熊萍萍
Owner PINGGAO GRP
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