Community terminal highly and lowly distributed GIS high pressure sulfur hexafluoride breaker arc extinguish chamber

A technology of sulfur hexafluoride and circuit breakers, which is applied in high-voltage air circuit breakers, high-voltage/high-current switches, circuits, etc., can solve the problems of reducing operating power, achieve improved breaking performance, novel structural design, and wide application Effect

Inactive Publication Date: 2009-12-09
西安森源开关技术研究所有限公司
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  • Abstract
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, at the beginning of the 21st century, the developed countries in the world devoted themselves to the study of high-voltage self-energy SF6 circuit breakers that use arc energy to help the arc extinguish when breaking large currents, thereby greatly reducing the operating work.

Method used

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  • Community terminal highly and lowly distributed GIS high pressure sulfur hexafluoride breaker arc extinguish chamber
  • Community terminal highly and lowly distributed GIS high pressure sulfur hexafluoride breaker arc extinguish chamber

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Embodiment Construction

[0029] Such as figure 1 , figure 2 As shown, the present invention includes a three-pole common box type circuit breaker arc extinguishing chamber composed of a circuit breaker case 7 and three poles 9 arranged inside the circuit breaker case 7 . The pole 9 is installed on the top of the circuit breaker housing 7 through a pole mounting plate 11 . The pole 9 is composed of the static contact mechanism 1 and the movable contact mechanism 2 used in conjunction with the outlet mechanism 3 connected with the static contact mechanism 1 and the movable contact mechanism 2 respectively, and drives the movable contact mechanism 2 to move up and down. The insulating pull rod 4 for opening and closing action and the static contact seat 5 and the moving contact seat 6 for the static contact mechanism 1 and the moving contact mechanism 2 are respectively installed. The insulating pull rod 4 is driven to move up and down by the operating mechanism 8 arranged outside the circuit breaker ...

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Abstract

The invention discloses a community terminal highly and lowly distributed GIS high pressure sulfur hexafluoride breaker arc extinguish chamber, comprising a three-terminal community box type breaker arc extinguish chamber formed by a breaker shell and three terminals arranged in the interior of the breaker shell; wherein the terminal is composed of a static contact mechanism and a moving contact mechanism which are used in a matching way, a coil out mechanism respectively connected with the static contact mechanism and the moving contact mechanism, an insulating tension rod driving the moving contact mechanism to carry out on and off operations up and down as well as a static contact seat and a moving contact seat which are respectively for installation of the static contact mechanism and the moving contact mechanism; the three terminals are arranged in a form like Chinese character 'PIN', and the three terminals are different in the height of the fracture at the middle part or two of the three are the same. The invention has novel and reasonable structure design and good use effect, can meet the use requirement of electric equipment of high voltage, high capacity, combined type, miniaturization and high reliability, and is especially applicable to 126kV breaking current 40kA small interval GIS self energy type SF6 breaker.

Description

technical field [0001] The invention belongs to the technical field of high-voltage switchgear, and in particular relates to an arc extinguishing chamber of a GIS high-voltage sulfur hexafluoride circuit breaker arranged at a height of poles of a common box. Background technique [0002] At the end of the 20th century, high-voltage SF6 circuit breakers using sulfur hexafluoride (SF6) gas with excellent insulation and arc-extinguishing properties as the medium replaced oil-less circuit breakers and air circuit breakers, and were widely used in power systems. SF6 circuit breakers have the advantages of small size, strong breaking capacity, long electrical life, safety and reliability, etc. took a dominant position. However, the compressed air SF6 circuit breaker needs a hydraulic or pneumatic operating mechanism with a large operating power. According to the statistics of the power department, mechanical failures account for more than 50% of the main and secondary failures o...

Claims

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Application Information

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IPC IPC(8): H01H33/74
Inventor 张裕生武军辉
Owner 西安森源开关技术研究所有限公司
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