电器与能效管理技术 ›› 2022, Vol. 0 ›› Issue (8): 76-80.doi: 10.16628/j.cnki.2095-8188.2022.08.014

• 应用 • 上一篇    

环境优化SF6替代气体在中高压电力设备中的应用浅析

王广先, 赵瑞影   

  1. 正泰电气股份有限公司, 上海 201614
  • 收稿日期:2021-12-21 出版日期:2022-08-30 发布日期:2022-10-11
  • 作者简介:王广先(1985—),男,高级工程师,主要从事中高压成套设备设计与研发工作。|赵瑞影(1990—),女,工程师,主要从事中高压成套设备设计与研发工作。

Analysis on Application of Environmental Optimization SF6 Alternative Gas in Medium and High Voltage Power Equipment

WANG Guangxian, ZHAO Ruiying   

  1. CHINT Electric Co.,Ltd.,Shanghai 201614, China
  • Received:2021-12-21 Online:2022-08-30 Published:2022-10-11

摘要:

为减少温室气体排放,开展了环境友好型SF6可替代气体研究、适时评价与推广应用。目前,在灭弧方面,40.5 kV及以下电压等级开关设备普遍采用真空灭弧室作为主开断单元取代SF6灭弧介质。在绝缘方面,采用环境友好型SF6替代气体作为绝缘介质的研究也取得了很大进展,其研究热点主要集中于干燥空气、N2、C4-PFN(氟化腈类)气体及其混合气体、全氟酮类(CnF2nO)气体及其混合气体等。通过对其绝缘、温升、物理化学特性分析比较,总结其优缺点和应用现状,在特定电压等级下确定某一种气体或混合气体作为SF6的理想替代气体展开深入应用研究。

关键词: 气体绝缘开关设备, SF6替代气体, 绝缘特性, 温升

Abstract:

In order to reduce greenhouse gas emissions,the research on environment-friendly SF6 alternative gas should be carried out,and the timely evaluation and application should be promoted.At present,in terms of arc extinguishing,vacuum interrupter is widely used as the main breaking unit to replace SF6 arc extinguishing medium for 40.5 kV and below voltage level switchgear.In terms of insulation,the great progress has been made in the research of using environmental protection gas instead of SF6 as the insulation medium.The research focuses are mainly on dry air,N2,C4-PFN (fluorinated nitriles) gas and its mixture,perfluorones (CnF2nO) gas and its mixture,etc.Through the analysis and comparison of their insulation,temperature rise,physical and chemical characteristics,their advantages and disadvantages and application status are summarized,and a certain gas or mixed gas is determined as an ideal alternative gas for SF6 under a specific voltage level to carry out in-depth application research.

Key words: gas insulated switchgear(GIS), SF6 alternative gas, insulation characteristics, temperature rise

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