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gil's three post insulator

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

Active Publication Date: 2021-08-06
PINGGAO GRP +2
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  • Summary
  • 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 present invention relates to the technical field of high-voltage power transmission, and specifically provides a three-post insulator of GIL. The three-post insulator includes a post main body and an insert cast on the end of the post main body. Stress slots that allow radial shrinkage of the Insert to accommodate shrinkage deformation of the strut body. A stress groove is provided on the insert. When the insert is located in the post insulator, the insert can transmit the residual stress generated by the post insulator to the insert through the stress groove, which improves the stress structure of the insert and avoids the Defects such as deformation and microcracks in the parts, thus ensuring the assembly relationship between the insert and the post insulator, and ensuring the insulation capacity 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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Patent Type & Authority Patents(China)
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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