Double-acting conductive rod and double-bellow structure vacuum interrupter and working method thereof

A technology of vacuum interrupter and moving conductive rod, which is applied in the direction of circuits, electric switches, electrical components, etc., can solve the problems of not using double bellows sealing structure, and achieve the effects of reducing economic costs, saving coordination, and simplifying structural design

Active Publication Date: 2018-09-04
XI AN JIAOTONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, there are no research results on high rated current level vacuum interrupte

Method used

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  • Double-acting conductive rod and double-bellow structure vacuum interrupter and working method thereof
  • Double-acting conductive rod and double-bellow structure vacuum interrupter and working method thereof
  • Double-acting conductive rod and double-bellow structure vacuum interrupter and working method thereof

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Embodiment Construction

[0024] Below in conjunction with accompanying drawing and specific embodiment the present invention is described in further detail:

[0025] Such as figure 1 As shown, a double-moving conductive rod and double bellows structure vacuum interrupter of the present invention includes: main static conductive rod 101, main static contact 102, active contact 103, active conductive rod 104, main bellows 105, Auxiliary static conductive rod 201, auxiliary static contact 202, auxiliary movable contact 203, auxiliary movable conductive rod 204, auxiliary bellows 205, static end cover 301, movable end cover 302, static end shield 401, main shield 402, Moving end shield 403, porcelain shell 501, static end seal 601, moving end guide 701, static end connection 801, moving end main conductive rod connection 802 and moving end auxiliary conductive rod connection 803.

[0026] The main bellows 105 is a stainless steel bellows with a thickness of 0.2 mm and a compression stroke of 30 mm. One e...

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PUM

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Abstract

The invention discloses a double-acting conductive rod and double-bellow structure vacuum interrupter and a working method thereof. The vacuum interrupter includes a primary bellow, a secondary bellow, a primary conductive rod, a secondary conductive rod, a primary contact for short-circuit breaking and welded to the primary conductive rod, and a secondary contact for large rated current through-flow and welded to the secondary conductive rod. The vacuum interrupter can maintain the high vacuum inside the vacuum interrupter through the double-bellow sealing structure, and the vacuum interrupter loop resistance is greatly reduced through the double action conductive rods and the double-contact structure; and the rated current level of the vacuum interrupter can be significantly improved without affecting the short-circuit fault current breaking performance of the vacuum interrupter.

Description

technical field [0001] The invention relates to the technical field of vacuum interrupters, in particular to a vacuum interrupter with a raised rated current level and a vacuum interrupter with a double-moving conductive rod and double bellows structure and a working method. Background technique [0002] Switchgear is an important control and protection device in power system, vacuum and SF 6 It is two kinds of insulation and arc extinguishing media with excellent performance widely used in circuit breakers, and the "Kyoto Conference Book" will SF 6 After it was officially identified as a greenhouse gas, the research on vacuum circuit breakers has become an important research direction in the field of high-voltage switches at home and abroad. Many experts and scholars have carried out different levels of research on various technical fields of vacuum interrupters, aiming at the development of vacuum circuit breakers to higher voltage levels and larger capacities. However, ...

Claims

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Application Information

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IPC IPC(8): H01H33/66H01H33/662H01H33/664
CPCH01H33/6606H01H33/66238H01H33/664
Inventor 姚晓飞翟小社洪礼鑫孙丽琼张博健刘志远王建华耿英三
Owner XI AN JIAOTONG UNIV
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