Development and Application of Environment-friendly GIS Combined Clean Air and Vacuum Interruption Technology

LI Dejun; SHEN Wei; KUSCHEL M; DEMANN R

doi:10.13296/j.1001-1609.hva.2019.02.004

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Development and Application of Environment-friendly GIS Combined Clean Air and Vacuum Interruption Technology

更新时间：2025-04-26

- Development and Application of Environment-friendly GIS Combined Clean Air and Vacuum Interruption Technology
- High VoltageApparatus Vol. 55, Issue 2, Pages: 21-30(2019)
- 作者机构：
  
  1. 西门子中国有限公司上海分公司
  2. 上海西门子高压开关有限公司
  3. 3. Siemens AG,High Voltage Products
- 作者简介：
- 基金信息：
- DOI：10.13296/j.1001-1609.hva.2019.02.004
  CLC： TM213
- Published：2019
- 稿件说明：
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[1]李德军,沈威,KUSCHEL M,DEMANN R.一种采用洁净空气绝缘和真空灭弧技术的环境友好型GIS的研究和应用[J].高压电器,2019,55(02):21-30.

LI Dejun, SHEN Wei, KUSCHEL M, et al. Development and Application of Environment-friendly GIS Combined Clean Air and Vacuum Interruption Technology[J]. High voltageapparatus, 2019, 55(2): 21-30.
[1]李德军,沈威,KUSCHEL M,DEMANN R.一种采用洁净空气绝缘和真空灭弧技术的环境友好型GIS的研究和应用[J].高压电器,2019,55(02):21-30. DOI： 10.13296/j.1001-1609.hva.2019.02.004.

LI Dejun, SHEN Wei, KUSCHEL M, et al. Development and Application of Environment-friendly GIS Combined Clean Air and Vacuum Interruption Technology[J]. High voltageapparatus, 2019, 55(2): 21-30. DOI： 10.13296/j.1001-1609.hva.2019.02.004.

摘要

对于高压产品尤其是GIS/AIS开关

一直被作为主要的灭弧和绝缘介质广泛使用。但因为其非常高的全球变暖潜能（GWP=23 900）

在过去几十年人们从没停止过对其替代气体的研究和寻找工作。近年氟化腈（如:C4-PFN即C4F7N）和氟代酮（如:C5-PFK即C5F10O）气体及其混合气体作为潜在的SF

替代气体受到关注和初步应用;同时采用基于真空灭弧室灭弧配合洁净空气绝缘的GIS/AIS开关产品上也被开发并有了实际应用。文中简单总结了现有SF

替代气体方案的技术现状

并重点介绍一种基于洁净空气绝缘和真空灭弧技术、不采用SF

和任何氟类气体的GIS产品在研发过程中的一些关键技术

试验发现和最终应用情况。首先通过洁净空气在GIS中不同工况下的绝缘击穿试验和典型缺陷下的局放试验确立该新型GIS的尺寸参数标准;其次比较了GIS隔离开关和接地开关在洁净空气、C4-PFN混合气体、C5-PFK混合气体以及SF

气体等不同工况下的小电流开合性能

并确定了洁净空气的相关开合特性和相对的优缺点;然后描述了为了满足高压断路器性能对真空灭弧室关键技术的相关改进情况;此外还从环境、安全和运维角度

对使用上述几种气体的开关进行了优劣势评估和讨论;最后结合该类新型开关设备的现场运行经验

认为基于洁净空气绝缘和真空灭弧技术的环境友好型GIS是理想的SF

GIS的替代产品。

Abstract

Sulphur hexafluoride（SF

）is widely used as main medium for arc quenching and insulation gas in AIS and GIS high voltage products.However

it is also a gas with a high global warming potential（GWP=23 900）

therefore

searching for alternative gases has been ongoing since the past several decades.In recent years

perfluoronitrile（e.g.C

N called as C

-PFN）and perfluoroketone（e.g.C5 F10 O called as C5-PFK）have been proposed as alternative to SF

.On the other hand AIS and GIS high voltage products based on vacuum interrupting and clean air technology are successfully introduced into operation.In the present article the technical status of SF

alternative approaches is summarized and an SF

-and F-gas free GIS based on clean air insulation and vacuum switching technology is presented.Several key technical considerations

tests and applications with regard to this GIS are given.Firstly

criteria for reliable and safe insulating dimensions of this new GIS are gained through dielectric breakdown tests under various conditions and typical partial discharge tests using clean air as the medium.And vacuum interrupting unit is accordingly improved in certain aspects to meet requirements for high-voltage circuit-breakers.Then the lowcurrent switching tests are carried out on real GIS disconnector and earthing switch

respectively using clear air

C4-PFN mixtures

C5-PFK mixtures and SF

as medium

to determine the switching performance in clean air in comparison with other above gases

and the benefits and drawbacks within clean air are described as well.Moreover

the crucial technical improvements of VIU for HV circuit breaker application are introduced.Finally GIS with these gases are also compared from perspective of safety

environment

operation and maintenance.In conclusion

combining with experiences of real applications of such switchgear

we do believe that this SF

-/F-gas free GIS

based on clean air insulation and vacuum switching technology

is the ideal replacement of SF

GIS.

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