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Double-column vertical opening type ice melting isolation switch

A technology for isolating switches and melting ice, which is applied in the direction of electric switches, air switch components, high-voltage air circuit breakers, etc. It can solve the problems of large closing impact, poor conduction and flow stability, and poor reliability, so as to reduce closing impact, enhance the stability of the overall structure, and ensure the stability of the conduction flow

Pending Publication Date: 2020-11-06
CHANGGAO ELECTRIC GROUP CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The current isolating switch has a large closing impact, poor stability of conduction and flow, and poor reliability, so it is not suitable as an isolating switch for large current melting ice

Method used

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  • Double-column vertical opening type ice melting isolation switch

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Embodiment Construction

[0018] 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 only for explaining the present invention and should not be construed as limiting the present invention.

[0019] In the description of the invention, it should be understood that the orientation descriptions, such as up, down, front, back, left, right, etc. indicated orientations or positional relationships are based on the orientations or positional relationships shown in the drawings, and are only for the purpose of It is convenient to describe the present invention and simplify the description, but does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific or...

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Abstract

The invention discloses a double-column vertical opening type ice melting isolation switch which comprises a support, a static contact, a moving contact and a main knife mechanism. The static contactand the moving contact are respectively arranged at two opposite ends of the support insulator mounting bracket. The main knife mechanism comprises a first contact knife and a second contact knife. One end of the first contact knife and one end of the second contact knife are rotatably connected with the two connecting parts on the moving contact respectively. The first contact knife and the second contact knife are parallel to each other and are spaced by a certain distance, the middle position of the second contact knife is connected to an operation insulator, and the tail end of the operation insulator is connected to a linkage shaft. According to the embodiment of the invention, a single conductive contact knife of a traditional isolation switch is changed into a double-contact-knife structure, and the conductive through-flow stability is ensured. Meanwhile, the moving contact and the static contact are installed on the supporting insulators at the two ends respectively, the insulators are operated to drive the disconnecting link to rotate to complete switching-on, and the fixed moving contact, the fixed static contact, the separated upper contact knife and the separated lowercontact knife can reduce switching-on impact.

Description

technical field [0001] The invention relates to the field of electric power ice-melting equipment, in particular to a double-column vertical opening type ice-melting isolating switch. Background technique [0002] The threat of ice disaster has always been a major technical problem that the power system industry is struggling to deal with. In recent years, with changes in global climate conditions, low-temperature, rainy, snowy and freezing weather has frequently occurred in southern, central, and northern China, which has repeatedly caused large-scale and long-term outages of power transmission lines in various provinces in our country, causing huge losses to the national economy and people's lives. . In order to prevent this situation from recurring, after the ice disaster in 2008, my country's electric power science and technology workers independently carried out the research and development of ice melting technology and devices, and successfully developed a high-power ...

Claims

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Application Information

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IPC IPC(8): H01H31/02
CPCH01H31/023H01H31/026
Inventor 马晓邓文华杨玲夏圣徐姿
Owner CHANGGAO ELECTRIC GROUP CO LTD
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