中压环保气体绝缘金属封闭开关设备研究现状

Review of Medium Voltage Environment-friendly Gas-insulated Metal-enclosed Switchgears

为了减少温室气体排放,不用或少用含SF_6的中压开关设备是发展方向。文章介绍了中压环保气体绝缘金属封闭开关设备的发展现状、技术特点,分析了国内现有产品的主要技术参数以及应用情况,并与空气绝缘金属封闭开关设备和含SF_6的金属封闭开关设备进行了比较,指出中压环保气体绝缘金属封闭开关设备具有绿色环保、环境适应性强、体积小、高模块化等优势。围绕绝缘优化、温升控制、密封与检漏三个方面进行了分析和展望,对中压环保气体绝缘金属封闭开关设备的研制、改进与应用提供有益的参考。

In order to protect environment and reduce greenhouse gas emissions,not using or using less SF6 gas is a development direction of medium voltage switchgears. The development status and technical characteristics of medium voltage environment-friendly gas-insulated metal-enclosed switchgears are summarized in this paper. The main technical parameters and application situations of domestic existing products are introduced,as well as in comparison with air-insulated metal-enclosed switchgears and SF6 -filled metal-enclosed switchgears. The advancements are environment-friendly,miniaturized,modularized,high environmental adaptability and so on. The design challenges are analyzed and researched emphatically from aspects of insulation optimizations,temperature rise controls and seals and leak detection. Moreover,the developing trends are pointed out. All the achievements provide important references for the development,improvement and application of medium voltage environment-friendly gas-insulated metal-enclosed switchgears.