GIS busbar and its busbar expansion joint

A technology of expansion joints and busbars, which is applied in the field of power transmission and transformation engineering, and can solve problems such as structural damage to busbar cylinders or expansion joints, and small expansion ranges of expansion joints.

Active Publication Date: 2021-05-25
HENAN PINGGAO ELECTRIC +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 bus expansion joint, which is used to solve the problem of the small expansion range of the expansion joint in the prior art; The problem of structural damage to the cylinder or expansion joint itself

Method used

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  • GIS busbar and its busbar expansion joint
  • GIS busbar and its busbar expansion joint
  • GIS busbar and its busbar expansion joint

Examples

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Embodiment Construction

[0032] The specific embodiments of the present invention will be further described below in conjunction with the accompanying drawings.

[0033] Embodiment 1 of the GIS busbar of the present invention, such as figure 1 As shown, it includes a busbar barrel 1 and an expansion joint 2 connecting adjacent busbar barrels 1, and the expansion joint 2 constitutes a busbar expansion joint.

[0034] like figure 2 As shown, the telescopic joint 2 in this embodiment 1 includes a bellows 22 and a front flange 23 and a rear flange 24 located at the front and rear ends of the bellows 22. The front flange 23 and the rear flange 24 are used to communicate with the busbar The body 1 is connected and fixed, and the bellows 22 are used to compensate the deformation of the busbar barrel 1 due to thermal expansion and contraction and ensure the sealing between adjacent busbar barrels 1; on the outside of the bellows 22, the front flange 23 and An elastic component 21 is also installed between ...

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Abstract

The invention relates to the technical field of power transmission and transformation engineering, and in particular to a GIS busbar and its busbar expansion joint. The bus expansion joint in the GIS bus includes a front flange and a rear flange arranged along the bus axis. A bellows is connected between the front flange and the rear flange. The bus expansion joint also includes a front flange and a rear flange connected between the front flange and the rear flange. The elastic component includes a sleeve fixedly connected to the front flange and a dowel rod fixedly connected to the rear flange. The dowel rod extends into the sleeve, and the dowel rod portion extends into the sleeve and A coil spring is provided between the rear ends of the sleeve; when the bus expansion joint and the bus barrel are butted and the bellows is not deformed by force, the sum of the spacing between adjacent circles of the coil spring is not greater than the maximum allowable stretch of the bellows. quantity. The busbar expansion joint can be used to solve the problem in the prior art that the expansion joint has a small expansion range of deformation, and can also solve the problem of structural damage to the busbar barrel or the expansion joint itself due to the small deformation range of the expansion joint.

Description

technical field [0001] The invention relates to the technical field of power transmission and transformation engineering, in particular to a GIS busbar and a busbar expansion joint thereof. Background technique [0002] GIS (gas insulated metal-enclosed switchgear) is one of the important equipment in the process of power transmission in substations, and its safety and reliability are the basic conditions for stable power transmission in substations. In the GIS project, the thermal expansion and contraction of the GIS busbar will cause the GIS busbar to bend and expand and the internal insulating gas of the GIS busbar to leak out, which will cause the substation to operate unreliably, and may eventually cause a safety accident. In order to avoid this situation, the current Connect bus expansion joints between adjacent bus cylinders to compensate for the deformation of the GIS bus due to thermal expansion and contraction. At the same time, a balance device will be installed o...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02G5/06
Inventor 李贵胜黄坤鹏赵亚平李健薛红涛赵平谢世超黄鑫高超楼
Owner HENAN PINGGAO ELECTRIC
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