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Quick grounding switch with arc extinguishing device

A grounding switch and arc extinguishing technology, which is applied in the field of fast grounding switches, can solve the problems of high voltage level of UHV lines, high line towers, large transmission capacity, etc., to enhance arc extinguishing ability, prevent leakage, and increase arc extinguishing devices Effect

Pending Publication Date: 2020-01-17
SHENYANG POLYTECHNIC UNIV +3
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Compared with EHV transmission lines, UHV lines have high voltage level, large transmission capacity, high line towers, and long insulator strings. In the prior art, there is no grounding switch suitable for UHV GIL pipelines to ensure the successful interruption of submerged current supply.

Method used

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  • Quick grounding switch with arc extinguishing device
  • Quick grounding switch with arc extinguishing device
  • Quick grounding switch with arc extinguishing device

Examples

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Embodiment Construction

[0030] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "both ends", "one end", "another end" The orientation or positional relationship indicated by etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the referred device or element must have a specific orientation, use a specific Azimuth configuration and operation, therefore, should not be construed as limiting the invention. In addition, the terms "fi...

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Abstract

The invention discloses a quick grounding switch with an arc extinguishing device, and belongs to the technical field of quick grounding switches. The quick grounding switch with the arc extinguishingdevice comprises a static contact, a moving contact, an operating mechanism and the arc extinguishing device arranged in a sealing cylinder; the arc extinguishing device comprises an air cylinder; apiston plate is arranged in the air cylinder; the piston plate and one side, close to the static contact, of the air cylinder form an air inlet chamber; the air inlet chamber is communicated with theinterior of the moving contact through a plurality of first air holes; the air inlet chamber is communicated with the outside of the static contact through a plurality of air guide pipes; one end, close to the static contact, of each air guide pipe is smoothly and reliably connected with the outer wall of the moving contact; one end of the moving contact is matched with the static contact, the other end of the moving contact is connected with the piston plate, and one side, away from the moving contact, of the piston plate is connected with the operating mechanism. According to the quick grounding switch with the arc extinguishing device, the structure of the quick grounding switch is optimized, the arc extinguishing capability is enhanced, the induction current switching-on and switching-off capability of the quick grounding switch is improved, and the working reliability of the quick grounding switch is further improved.

Description

technical field [0001] The invention relates to the technical field of fast grounding switches, in particular to a fast grounding switch with an arc extinguishing device. Background technique [0002] The ultra-B type fast grounding switch refers to the fast grounding switch acting on the line with extremely long coupling length or strong coupling with the adjacent live line, because it has a better ability to extinguish the submerged arc (compared with ordinary fast grounding switch) ) and applied to UHV transmission lines that require automatic reclosing. The fast grounding switch installed on the GIL pipeline is operated by a spring mechanism, which can quickly guide the induced current in the line to the ground, thereby protecting the safety of line equipment and operating and maintenance personnel. Compared with EHV transmission lines, UHV lines have high voltage level, large transmission capacity, high line towers, and long insulator strings. In the prior art, there i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01H33/22H01H33/02H01H1/06
CPCH01H1/06H01H33/02H01H33/22
Inventor 李永林朱莹林莘徐建源张佳钟建英赵晓民马凤翔宋宇李瑞嵩张震刘鹏飞
Owner SHENYANG POLYTECHNIC UNIV
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