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Three-post insulator assembly and GIL

An insulator and three-pillar technology, which is applied to electrical components, gas-filled/oil-filled cable accessories, etc., can solve the problems of high cost, large space occupation, and small insulation margin of legs, etc., to reduce the outer diameter of the cylinder and improve Effect of insulation margin and cost reduction

Pending Publication Date: 2022-04-29
HENAN PINGGAO ELECTRIC +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a three-pillar insulator assembly to solve the problems of the prior art that the screw heads located between the fixing plate and the cylinder occupy a large space, resulting in small insulation margin and high cost of the legs. Technical problem; also provide a kind of GIL using the three-pillar insulator assembly, to solve the above technical problems

Method used

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  • Three-post insulator assembly and GIL
  • Three-post insulator assembly and GIL
  • Three-post insulator assembly and GIL

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] like Figure 1 to Figure 6As shown, the GIL mainly includes a cylinder body 100, a central conductive tube 200, a fixed three-pillar assembly 300 and a sliding three-pillar assembly 400, wherein the fixed three-pillar assembly 300 is fixedly assembled with the cylinder body 100 and the central conductive tube 200, and the sliding three-pillar assembly The assembly 400 is fixedly assembled with the central conductive tube 200 and can slide relative to the cylinder body 100 . For the convenience of description, the "inner" and "outer" in this embodiment both refer to the radial direction of the cylinder 100, and the ones close to the center are "inner", and the ones facing away from the center are "outer".

[0034] The structure of the fixed three-pillar assembly 300 is as Figure 2 to Figure 6 As shown, the fixed three-pillar assembly 300 includes a three-pillar insulator 301. The three-pillar insulator 301 includes a central conductor and three legs 302 arranged at int...

specific Embodiment 2

[0043] The difference from Embodiment 1 is that in Embodiment 1, the boss fits into the groove, and the groove is used to position the boss. In this embodiment, the size of the boss is smaller than the fit of the groove, and the positioning cannot be achieved after the boss is embedded in the groove, but because the boss and the insert will be fastened by screws at last, even if the boss cannot be in the groove The positioning in the groove will not affect the subsequent fixed connection.

specific Embodiment 3

[0045] The difference from Embodiment 1 is that in Embodiment 1, a stepped hole extending to the boss is provided on the connecting end of the insert, and a non-metal buffer gasket is embedded in the stepped hole. In this embodiment, the stepped holes are replaced with equal-diameter through holes. In other embodiments, the hole on the connecting end of the insert is eliminated, and the non-metallic buffer gasket is directly pasted on the connecting end of the insert. In other embodiments, the material of the non-metallic buffer gasket can be replaced, for example, it can be rubber. In other embodiments, the non-metallic cushioning gasket is omitted, and a soft material coated on the fixing plate is additionally added.

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Abstract

The invention belongs to the technical field of gas insulated metal closed transmission lines, and particularly relates to a three-post insulator assembly and a GIL, the three-post insulator assembly comprises a three-post insulator and a fixing plate, the three-post insulator comprises three supporting legs, and the outer end of each supporting leg is provided with an insert; one end of the fixing plate is a barrel connecting end used for being fixedly connected with a barrel, and the other end of the fixing plate is an insert connecting end connected with an insert; a screw through hole is formed in the insert connecting end, and the insert connecting end is connected with the insert through a screw penetrating through the screw through hole; a groove is formed in the end face of the outer end of the insert, a boss embedded into the groove is arranged on the inner side of the connecting end of the insert in the fixing plate, the screw penetrating hole penetrates through the boss, the screw penetrating hole is a counter bore, and at least part of the head of the screw is located in the counter bore.

Description

technical field [0001] The invention belongs to the technical field of gas-insulated metal-enclosed transmission lines, and in particular relates to a three-pillar insulator assembly and a GIL. Background technique [0002] With the acceleration of urbanization, the demand for GIL is increasing, and the scope of application is becoming wider and wider. The structure of the GIL is generally shown in the Chinese invention patent application with the application publication number CN113300319A, which includes a cylinder body and a central conductive tube inside the cylinder, and also includes a sliding three-post insulator and a fixed three-post insulator that support the central conductive tube inside the cylinder. The sliding three-pillar insulator is fixed on the central conductive tube and can slide in the cylinder with the central conductive tube, while the fixed three-pillar insulator is fixedly arranged relative to the central conductive tube and the cylinder. Among the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02G15/20H02G15/28H02G3/04
CPCH02G15/20H02G15/28H02G3/0481H02G3/0406
Inventor 吴林波王明树李付永孙龙勇刘刚许明辉徐坤福石治中周子瑜芦珂王慧慧陈午阳刘东洋张润杰康霄马哲迪
Owner HENAN PINGGAO ELECTRIC
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