Design of a High Parameter 12 kV Miniaturization Switchgear

KONG Xiangchong; LI Zhengjun; LIU Lidong; ZHANG Shixiao; PENG Fengjuan

doi:10.13296/j.1001-1609.hva.2018.04.034

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Design of a High Parameter 12 kV Miniaturization Switchgear

更新时间：2025-04-26

- Design of a High Parameter 12 kV Miniaturization Switchgear
- High VoltageApparatus Vol. 54, Issue 4, Pages: 221-226(2018)
- 作者机构：
  
  益和电气集团股份有限公司
- 作者简介：
- 基金信息：
- DOI：10.13296/j.1001-1609.hva.2018.04.034
  CLC： TM591
- Published：2018
- 稿件说明：
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[1]孔祥冲,李政军,刘立东,张世晓,彭凤娟.一种高参数的12 kV小型化开关柜设计[J].高压电器,2018,54(04):221-226.

KONG Xiangchong, LI Zhengjun, LIU Lidong, et al. Design of a High Parameter 12 kV Miniaturization Switchgear[J]. High voltageapparatus, 2018, 54(4): 221-226.
[1]孔祥冲,李政军,刘立东,张世晓,彭凤娟.一种高参数的12 kV小型化开关柜设计[J].高压电器,2018,54(04):221-226. DOI： 10.13296/j.1001-1609.hva.2018.04.034.

KONG Xiangchong, LI Zhengjun, LIU Lidong, et al. Design of a High Parameter 12 kV Miniaturization Switchgear[J]. High voltageapparatus, 2018, 54(4): 221-226. DOI： 10.13296/j.1001-1609.hva.2018.04.034.

摘要

针对高海拔、频繁发生温湿风、易出现冷凝现象及污秽地区等环境使用要求

笔者开发出一种12 kV小型化开关柜。该开关柜设计基于KYN28A-12型开关柜结构

依据IEC、GB等有关标准

对断路器室、母线室、电缆室等主要功能单元及内部零部件进行改进设计或创新

经过多次摸底试验

解决其中的绝缘、温升、内部燃弧等关键问题。新设计的开关柜柜宽650 mm

相对地、相间及断口间雷电冲击耐压达95 kV

在西安高压电器研究院通过型式试验验证（包括内部燃弧）

具有体积小、绝缘水平高、接地关合及抗内部燃弧能力强等特点。设计中采取的提高绝缘、增强内部燃弧能力等措施

为今后高海拔地区中压开关设备的设计提供参考。

Abstract

A 12 kV miniaturization switchgear is developed

which is used in the regions with high altitude

fre-quent humid air

easily to appear condensation phenomenon and impurity. Based on the structure of KYN28 A-12 type switchgear

according to the IEC

GB and other relevant standards

the main function units and internal compo-nents of the compartment（such as circuit-breaker

busbar

cable etc.）are improved or innovated. The key problems ofinsulation

temperature rise

internal arc etc

are resolved after a lot of tests. The new designed switchgear can realizethe 650 mm switchgear width and the lightning impulse withstand voltage of phase-to-earth

phase-to-phase and theisolating distance reaches 95 kV

and have been passed the verification by the type testing in the XIHARI（includ-ing the arc test）. The switchgear has the characteristics of small volume

high insulation level

strong capability ofearthing switch making and breaking

withstanding internal arc etc. The measures to improve the insulation and en-hance the internal arc capacity will supply the reference for medium voltage switchgear design in high altitude areas.

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