Arc-extinguishing chamber, arc-extinguishing chamber tank and high-voltage switching equipment applying this arc-extinguishing chamber

A technology of arc extinguishing chambers and tanks, which is applied in the field of high-voltage switchgear and arc extinguishing chambers. It can solve the problems of weak insulation capacity of end caps, achieve ideal insulation performance, improve deposition conditions, and avoid damage.

Inactive Publication Date: 2017-01-11
PINGGAO GRP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0008] The object of the present invention is to provide an arc extinguishing chamber, an arc extinguishing chamber tank and a high-vol...

Method used

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  • Arc-extinguishing chamber, arc-extinguishing chamber tank and high-voltage switching equipment applying this arc-extinguishing chamber

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Embodiment Construction

[0030] Embodiments of the present invention will be further described below in conjunction with the accompanying drawings.

[0031] An example of an arc extinguishing chamber in the present invention is figure 1As shown, it is mainly composed of a tank body 10 , a moving end assembly 14 , a static end assembly 15 and an insulating flange 16 arranged at the inlet and outlet of the tank body 10 . The tank body 10 is made of metal, including a tank body 11 and a solid insulating layer arranged on the inner wall of the tank body 11. The tank body 11 includes a cylinder part extending in the left and right direction and shafts respectively sealed on the cylinder part. To the moving end cover part 12 and the static end cover part 13 at both ends, the end cover parts at both ends are fixed on the cylinder part through the flange structure, and the flange structure includes the outer flange 17 and the setting Inner flange 18 at the right end of the barrel portion. The moving end ass...

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Abstract

The invention relates to arc-extinguishing chamber, arc-extinguishing chamber tank and high-voltage switching equipment applying this arc-extinguishing chamber. The arc-extinguishing chamber comprises main part of tank which consists of barrel and end cap mounted on the barrel with axis stretching to both sides; the inner wall of barrel is covered with solid insulation layer and at least one end of the end cap is covered with solid insulation layer on its inner wall, thus a complete blocked layer is jointly formed through interconnection of solid insulation layer on both barrel and end cap. Just as the fixed insulation layer on barrel can act as protection, that on end cap can also be the protection, avoiding the damage from high-temperature airflow and also benefiting to shorten axial dimension of the tank, at the same time, the complete blocked layer jointly formed through interconnection of the solid insulation layer on both barrel and end cap can improve the condition of metallic dust depositing on end cap, thus to achieve better protective effect and ideal insulating property.

Description

technical field [0001] The invention relates to an arc extinguishing chamber, a tank body of the arc extinguishing chamber and a high-voltage switchgear using the arc extinguishing chamber. Background technique [0002] Commonly used insulation methods in switchgear are divided into gas insulation and fixed insulation. The method of gas insulation is to fill the arc extinguishing chamber with sulfur hexafluoride gas, nitrogen, etc., and the method of solid insulation is to set polytetrafluoroethylene in the interrupter. , electric ceramic materials, glass fiber cloth, resin materials, etc., and the gas insulation method is generally used in the ground insulation of metal-enclosed switchgear. Gas insulation also plays the role of arc extinguishing. However, no matter it is sulfur hexafluoride or nitrogen, its insulation strength is lower than that of solid insulation materials, and the insulation performance of the insulation gas itself will change according to the temperatu...

Claims

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Application Information

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IPC IPC(8): H01H33/72H02B13/025
CPCH01H33/72H02B13/025
Inventor 林麟何保营沙云鹏周华张琳许承艳
Owner PINGGAO GRP
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