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High-insulation and high-voltage GIS (gas insulated switchgear) casing

A high-insulation, high-voltage technology, applied in the direction of switchgear, electrical components, switchgear settings, etc., can solve the problems of easy scratches, affecting sealing performance, bruises, etc., and achieve the effect of high structural strength and improved insulation performance

Inactive Publication Date: 2018-06-29
JIANGSU HAIDA ELECTRIC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The outward facing end faces of the main cylinder flange and the support flange of the existing high-pressure GIS shell are sealing surfaces. Although this structure is simple, the outward end faces of the main cylinder flange and the support flange are easy to be scratched or bruised. Affect the use of sealing performance

Method used

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  • High-insulation and high-voltage GIS (gas insulated switchgear) casing
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  • High-insulation and high-voltage GIS (gas insulated switchgear) casing

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Embodiment Construction

[0022] The present invention will be further described below according to the accompanying drawings and in conjunction with the embodiments.

[0023] The high-insulation and high-voltage GIS housing shown in the attached figure includes the main cylinder 2, the main cylinder flange 1, and the support component 3; , The arc transition connection at the intersection of support tube I 2.1.

[0024] The support tube I 2.1 is welded and fixedly connected with the end of the support tube II 3.1 of the support tube assembly 3 .

[0025] The inner hole of the flange 1 of the main cylinder is provided with an inner spigot 1.5 on one side; the inner hole of the two ends of the main cylinder 2 is provided with an inner bevel 2.4; On the top, it is fixedly connected by welding, and the outward end face of the flange 1 of the main cylinder is concaved to form a circular groove I1.4.

[0026] The support tube assembly 3 includes support tube II 3.1 and support tube flange 3.2; one end of ...

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Abstract

The invention discloses a high-insulation and high-voltage GIS (gas insulated switchgear) casing. The casing comprises a main cylinder, main cylinder flanges and branch cylinder assemblies, wherein female ends of the main cylinder flanges are nested on the main cylinder at an interval and fixedly connected through welding; each branch cylinder assembly comprises a branch cylinder II and a branch cylinder flange; the outward end surfaces of the main cylinder flanges concave inwards to form round grooves I; further improvement is characterized in that the outward end surfaces of the branch cylinder flanges concave inwards to form round grooves II; holes are formed in the side wall of the main cylinder, openings of the holes extend outwards to form the branch cylinders I, and the intersections of the main cylinder and the branch cylinders I are in circular arc transition connection; the branch cylinder I is welded and fixedly connected with the end part of the branch cylinder II of the branch cylinder assembly; the diameter of an inner hole of each main cylinder flange is equal to that of an inner hole of the main cylinder, and a joint between the inner end surface of the female end of each main cylinder flange and each inner groove of the main cylinder is ground flush; insulated coatings are arranged on the inner walls of the inner holes of the main cylinder and the walls of theinner holes of the main cylinder flanges. The sealing surfaces of the main cylinder flanges and the branch cylinder flanges can be effectively protected, the insulation performance is good, and no discharge phenomenon can be caused.

Description

technical field [0001] The invention relates to the field of high-voltage substations, in particular to a high-voltage GIS casing. Background technique [0002] High pressure GIS housing, [0003] The high-voltage GIS (Gas Insulated Switchgear gas-insulated metal-enclosed switchgear) housing is the key component of the high-voltage combined electrical appliance, including the main cylinder, the main cylinder flange, and the support cylinder assembly. The outward-facing end faces of the main cylinder flange and the support cylinder flange of the existing high-pressure GIS shell are sealing surfaces. Although this structure is simple, the outward end surfaces of the main cylinder flange and the support cylinder flange are easily scratched or damaged. Affect the use of sealing performance. Contents of the invention [0004] Aiming at the deficiencies of the prior art, the utility model designs a high-insulation and high-voltage GIS shell that can effectively protect the sea...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02B13/045
CPCH02B13/045
Inventor 田江
Owner JIANGSU HAIDA ELECTRIC
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