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Bus assembly and gas insulated metal-enclosed switchgear using the bus assembly

A technology of closed switchgear and gas-insulated metal, which is applied in the setting of switchgear, switchgear, cooling busbar device, etc., can solve the problems that the temperature rise easily exceeds the national standard requirements and cannot meet the performance requirements of power equipment, and achieves the reduction of temperature rise , speed up heat dissipation, increase the effect of heat dissipation

Active Publication Date: 2016-04-27
HENAN PINGGAO ELECTRIC +2
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  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a busbar assembly with a flow capacity of 5000A to solve the problem in the prior art that the temperature rise at the electrical connection contacts of the busbar assembly easily exceeds the requirements of the national standard and cannot meet the performance requirements of power equipment; the present invention The object of the invention is also to provide a gas-insulated metal-enclosed switchgear using the above-mentioned busbar assembly

Method used

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  • Bus assembly and gas insulated metal-enclosed switchgear using the bus assembly
  • Bus assembly and gas insulated metal-enclosed switchgear using the bus assembly
  • Bus assembly and gas insulated metal-enclosed switchgear using the bus assembly

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Embodiment Construction

[0023] Examples of gas-insulated metal-enclosed switchgear:

[0024] The structure of gas-insulated metal-enclosed switchgear is as follows: figure 1 As shown, it includes a plurality of bays I, and the multiple bays I are electrically connected through the busbar assembly II to realize the current confluence and distribution between the bays. The busbar assembly II includes A, B, and C three-phase buses. structured as Figure 2~5 As shown, it includes a pot insulator 1 and a shell 2 fixed between two adjacent pot insulators through flange clamping. The pot insulator 1 is located in the shell 2 and includes an insulating body 11 made of epoxy resin. And the central conductor 12 made of aluminum, the electrical connection 3 is fixed on the central conductor 12 by bolts to realize the conductive connection between the central conductor 12 and the electrical connection 3 .

[0025] The electrical connection 3 includes a plug-in section 31 at the front end and a flange 32 protru...

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Abstract

The invention relates to a bus assembly and a gas insulated metal-enclosed switchgear using the bus assembly. The invention aims at solving the problem in the prior art that the temperature rise at the position of the electric connection contact finger of the bus assembly is liable to exceed the demand of the national standard so that the performance demand of a power device cannot be satisfied. In order to solve the technical problem, a heat radiation structure is arranged on the bus assembly at the position corresponding to the contact finger; and the heat radiation speed at the connection part of the electric connection and the conductive rod contact finger is increased.

Description

technical field [0001] The invention relates to a busbar assembly and a gas-insulated metal-enclosed switchgear using the busbar assembly. Background technique [0002] UHV power transmission can solve technical problems such as system instability and short-circuit current increase caused by large-capacity long-distance power transmission and the increase of power flow in the main outer ring system. The number of UHV transmission lines is small, which can effectively reduce the equivalent inductance of the system and improve system stability. Therefore, major high-voltage switchgear manufacturers are developing UHV switchgear. At present, the current capacity of the main busbar for 252KV gas-insulated metal-enclosed switchgear of domestic manufacturers is up to 4000A, and cannot be further increased. The rise is too large and exceeds the glass transition temperature of the insulator, which will eventually lead to insulation failure and affect the use of the busbar. As disc...

Claims

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Application Information

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IPC IPC(8): H02G5/10H02B13/035
CPCH02B13/0358H02G5/10
Inventor 王军飞盛健胡劲涛黄坤鹏刘静吴文利
Owner HENAN PINGGAO ELECTRIC
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