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.
CN109755908BActive Publication Date: 2021-05-25HENAN PINGGAO ELECTRIC +2
10 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
HENAN PINGGAO ELECTRIC
Publication Date
2021-05-25

Smart Images

  • Figure 1
    Figure 1
  • Figure 2
    Figure 2
  • Figure 3
    Figure 3
Patent Text Reader

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.
Need to check novelty before this filing date? Find Prior Art

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

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More