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Three-post insulator of GIL

A pillar insulator and insulator technology, applied in the field of high-voltage power transmission, can solve the problems of easy deformation and poor insulation ability of pillar insulators, and achieve the effects of improving insulation ability, reducing insulation ability and improving insulation.

Active Publication Date: 2020-05-12
PINGGAO GRP +2
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a three-post insulator of GIL, which can solve the problems of easy deformation and poor insulation capacity of post insulators in the prior art

Method used

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Embodiment Construction

[0026] The assembly structure of the three-pillar insulator and particle trap of the GIL in the present invention will now be described with reference to the accompanying drawings.

[0027] Such as Figure 1 to Figure 6 Shown is the specific implementation of the three-post insulator of GIL in the present invention: the three-post insulator of GIL in the present invention includes a post main body as the insulating part of the three-post insulator, and an insert is arranged in the post main body. Stress grooves are set on the insert, which can give way to the residual stress generated by the insulator on the insert, ensure the assembly relationship between the insert and the post insulator, and also ensure the insulation capability of the post insulator. In practical application, the three-pillar insulator 2 of the present invention is used in conjunction with the particulate trap 3 in the prior art, and is mainly used in gas-insulated metal-enclosed transmission lines (GIL), ...

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Abstract

The invention relates to the technical field of high-voltage power transmission, and particularly provides a three-post insulator of a GIL, wherein the three-post insulator comprises a post main bodyand an insert poured at the end part of the post main body, and the end surface, far away from the post main body, of the insert is provided with a stress groove for making the insert radially contract to adapt to the contraction deformation of the post main body. According to the invention, by arranging a stress groove in an insert, when the insert is located in the post insulator, the insert cantransmit the residual stress generated by the post insulator to the insert outwards through the stress groove, so that the stress structure of the insert is improved, and the defects of deformation,micro-cracking and the like of the insert are avoided so as to ensure the assembly relationship between the insert and the post insulator and ensure the insulation capability of the post insulator.

Description

technical field [0001] The invention relates to the technical field of high-voltage power transmission, in particular to a GIL three-pillar insulator. Background technique [0002] Gas-insulated metal-enclosed transmission line (GIL) is a high-voltage, high-current power transmission equipment that adopts gas insulation and coaxial arrangement of shell and conductor. It is a new type of power transmission after traditional overhead lines and underground cables. The power transmission method is widely used in the power industry due to its advantages of compact layout, large transmission capacity, high reliability and long transmission distance. The gas-insulated metal-enclosed transmission line includes a cylinder as the outermost layer of GIL, a central cylinder and a conductive rod arranged in the cylinder, the conductive rod is arranged in the central cylinder, and the central cylinder and the conductive rod are arranged on the post insulator. During the manufacture, inst...

Claims

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Application Information

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IPC IPC(8): H01B17/14H01B17/38H01B17/42
CPCH01B17/14H01B17/38H01B17/42
Inventor 金光耀柏长宇郭煜敬钟建英叶三排李丽娜王志刚裴涛
Owner PINGGAO GRP
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