Three-phase three-post insulator for three-phase common box type compact GIS/GIL

A three-phase common box and insulator technology, applied in the direction of supporting insulators, insulators, electrical components, etc., can solve problems such as insulation problems, and achieve the effect of reducing the maximum value of electric field strength, solving equipment miniaturization, and smoothing the outer contour.

Pending Publication Date: 2020-07-03
XI AN JIAOTONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the patent of this invention is to propose a three-phase three-pillar insulator for three-phase common box type compact GIS / GIL, so as to solve the insulation problem existing in the three-phase common box type compact GIS / GIS during long-distance power transmission

Method used

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  • Three-phase three-post insulator for three-phase common box type compact GIS/GIL
  • Three-phase three-post insulator for three-phase common box type compact GIS/GIL
  • Three-phase three-post insulator for three-phase common box type compact GIS/GIL

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Embodiment

[0042] like figure 1 As shown, the three-phase three-post insulator used in the three-phase common box type compact GIS / GIL of this embodiment includes three main components: a conductor covering area 1 , an insulator belly 2 and a leg 3 . The legs are cylindrical, with metal inserts 4 inside. The central conductor 6 passes through the insulator through the conductor covering area 1 of the three-phase three-post insulator. like Figure 2 ~ Figure 4 (a) , Figure 4(b), Figure 8 As shown, the conductor covering area 1 includes a first apex 8, which is a point away from the center of the insulator belly 2 on the conductor covering area 1, and the legs 3 include a second apex 9, which is a branch At the point on the outer edge of the top of the leg 3 and close to the conductor covering area 1, the first arc segment 10 of the belly of the insulator 2 should be on the side of the line between the first apex 8 and the second apex 9 close to the symmetrical center of the insulator....

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Abstract

The invention discloses a three-phase three-post insulator for a three-phase common box type compact GIS / GIL. The insulator comprises an insulator belly part, and conductor coating areas and supporting legs which are arranged on the insulator belly part, wherein the conductor coating areas and the supporting legs are distributed at intervals in the circumferential direction of the insulator bellypart, metal inserts are arranged in the supporting legs, the axial width of the conductor coating area is greater than the axial thickness of the insulator belly part, the conductor coating area and the insulator belly part are in smooth transition through a first chamfer, the width of the supporting leg is larger than the thickness of the insulator belly part in the axial direction, the supporting leg and the insulator belly part are in smooth transition through a second chamfer, the portion, located between the supporting leg and the conductor coating area, of the insulator belly part is insmooth transition through a first arc section, and the first arc section is a concave arc section. According to the three-phase three-post insulator, the surface synthesis field intensity, the tangential field intensity and the metal insert surface field intensity can be greatly reduced, and the control value requirement in engineering is met, so that the stability of the insulator under long-termoperation is improved.

Description

technical field [0001] The invention relates to the technical field of design, production and manufacture of electric equipment, in particular to a three-phase three-pillar insulator used for a three-phase common box type compact GIS / GIL. Background technique [0002] In order to realize the miniaturization design of GIS / GIL, increase the natural power of GIS / GIL power transmission, and save manufacturing costs, the design of GIS / GIL will be developed into a three-phase common box type. When the system load and the ambient temperature change, the relative displacement between the conductor and the shell will occur due to the change of the temperature field. In order to compensate for this phenomenon, the three-phase common box type compact GIS / GIL needs a suitable for this structural feature. insulating support parts. GIS / GIL presents electrical, thermal, force and surface defects, aerosols, SF 6 There are many complex factors such as decomposition products and temperature...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01B17/14H01B17/38H01B17/42
CPCH01B17/14H01B17/38H01B17/42
Inventor 彭宗仁吴泽华靳守锋龚傲田汇冬朱思佳
Owner XI AN JIAOTONG UNIV
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