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GIS busbar and busbar expansion joint thereof

A technology of expansion joints and busbars, which is applied in the field of power transmission and transformation engineering, can solve the problems of small expansion range of expansion joints, structural damage of busbar cylinder or expansion joints, etc., achieves large deformation range, low production cost, and prevents excessive stretching Effect

Active Publication Date: 2019-05-14
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 busbar expansion joint thereof
  • GIS busbar and busbar expansion joint thereof
  • GIS busbar and busbar expansion joint thereof

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] Such as 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 betwe...

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Abstract

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. The busbar expansion joint in theGIS busbar comprises a front flange and a rear flange arranged along the axis of the busbar; a bellows is connected between the front flange and the rear flange; the busbar expansion joint also comprises an elastic component connected between the front flange and the rear flange; the elastic component includes a sleeve fixedly connected to the front flange and a force-transmitting rod fixedly connected to the rear flange; the force-transmitting rod extends into the sleeve, and a coil spring is arranged between the force-transmitting rod portion extending into the sleeve and the rear end of the sleeve; and when the busbar expansion joint is butted against the busbar cylinder and the bellows is not deformed by a force, the sum of the spacings of the adjacent loops of the coil spring is notgreater than the maximum allowable stretch quantity of the bellows. The busbar expansion joint can be used to solve the problem that the expansion joint has a small telescopic deformation range in theprior art, and can also be used to solve the problem that the structure of the busbar cylinder or the expansion joint itself is damaged 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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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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