Design of Heat Dissipation Structure for High Current Medium Voltage AC Gas-insulated Metal-enclosed Switchgear

CAO Yefei; ZHU Xiaodong; TAN Yan

doi:10.13296/j.1001-1609.hva.2018.01.030

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Design of Heat Dissipation Structure for High Current Medium Voltage AC Gas-insulated Metal-enclosed Switchgear

更新时间：2025-04-26

- Design of Heat Dissipation Structure for High Current Medium Voltage AC Gas-insulated Metal-enclosed Switchgear
- High VoltageApparatus Vol. 54, Issue 1, Pages: 200-206(2018)
- 作者机构：
  
  平高集团上海天灵开关厂有限公司
- 作者简介：
- 基金信息：
- DOI：10.13296/j.1001-1609.hva.2018.01.030
  CLC： TM643
- Published：2018
- 稿件说明：
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[1]曹叶飞,朱晓东,谭燕.大电流中压交流气体绝缘金属封闭开关设备的散热结构设计[J].高压电器,2018,54(01):200-206.

CAO Yefei, ZHU Xiaodong, TAN Yan. Design of Heat Dissipation Structure for High Current Medium Voltage AC Gas-insulated Metal-enclosed Switchgear[J]. High voltageapparatus, 2018, 54(1): 200-206.
[1]曹叶飞,朱晓东,谭燕.大电流中压交流气体绝缘金属封闭开关设备的散热结构设计[J].高压电器,2018,54(01):200-206. DOI： 10.13296/j.1001-1609.hva.2018.01.030.

CAO Yefei, ZHU Xiaodong, TAN Yan. Design of Heat Dissipation Structure for High Current Medium Voltage AC Gas-insulated Metal-enclosed Switchgear[J]. High voltageapparatus, 2018, 54(1): 200-206. DOI： 10.13296/j.1001-1609.hva.2018.01.030.

摘要

中压交流气体绝缘金属封闭开关设备（C-GIS）通常由于发热元器件全部密封在狭小的充气隔室空间内

热量很难有效排出。特别是对于仅充有微正压气体的大电流交流气体绝缘金属封闭开关设备

由于充气隔室内气体分子密度接近大气压条件下的分子密度

当开关柜额定电流大于等于3 150 A时

柜内发热尤其严重

严重的发热缩短了开关设备的运行寿命。文中通过对气体绝缘金属封闭开关设备发热与散热机理的分析和试验结果的对比

提出了额定电流4 000 A的气体绝缘金属封闭开关设备降低温升的一种设计方案。实验结果表明该方案可满足标准要求。

Abstract

Due to the heating elements are sealed in a small gas compartment

medium voltage AC gas-insulated met-al-enclosed switchgear（C-GIS） is usually difficult to dissipating heat effectively. Especially for AC high current gas-insulated switchgear with micro-positive pressure gas

since the molecular density of gas compartment is near atmo-spheric conditions

while the rated current of switchgear is greater than or equal to 3 150 A

the heat generation is par-ticularly serious

which shorten the panel running life

which will shorten the operating life of switchgear. In this pa-per

by analyzing the mechanisms of heat generation and heat dissipation in gas-insulated switchgear

and comparingthe test results

a solution for reducing the temperature rise of gas-insulated metal-enclosed switchgear with rated cur-rent up to 4 000 A is proposed. The test results show that the scheme can meet the requirements of the standard.

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