变流装置交流剩余电流保护分析与选择

Analysis and Selection for AC Residual Current Protection of Converter Device

以交流变频设备为例,从设备结构、运行、接地故障等不同维度,讨论了含有变流设备的交流配电线路中的接地电流、接地故障保护,同时从产品标准角度分析了现有的剩余电流保护设备的基本保护能力,推荐了含有变流设备的交流配电线路中剩余电流保护设备的选用。

Taking AC frequency conversion equipment as an example,the equipment grounding current and grounding fault protection in the AC power system with the conversion device were discussed from device structure,operation and ground fault.The basic protection ability of current residual current operated protective device(RCD)was analyzed from points of product standards.The selection of RCD in the AC system with converter devices was suggested.