配电系统中零线过电流如何抑制的研究  

Study on how to suppress zero-phase overcurrent in distribution system

作　　者：况东 KUANG Dong(China Shanghai Architectural Design&Research Institute Co.,Ltd.,Shanghai 200062,China)

机构地区：[1]中国建筑上海设计研究院有限公司,上海200062

出　　处：《电气应用》2022年第11期42-46,I0005,I0007,共7页Electrotechnical Application

摘　　要：结合某大厦电力配电系统终端箱出现零线过电流并异常跳闸的现象,分析其零线过电流及电压畸变的背后原因,提出针对类似配电故障时的一种新的解决办法。通过分析故障背后的原因,结合电气综合治理保护系统的工作原理,并通过现场电气综合治理保护系统实践应用前后的电流数据变化,阐述了电气综合治理保护系统在治理民用建筑配电系统碰上类似三相不平衡及零线过电流问题时的应用研究。Based on the phenomenon of zero-phase overcurrent and abnormal tripping in the terminal distribution box of the power distribution system of a building,this paper analyzes the reasons behind the zero-phase overcurrent and voltage distortion,and proposes a new solution for similar circuit fault.the reasons behind circuit fault,is aralyzed combined with the working principle of N-Line Treatment Protection System,and through the change of current data before and after the practical application of the on-site N-Line Treatment Protection System,expounds the application research of N-Line Treatment Protection System in the treatment of similar threephase unbalance and zero-phase overcurrent problems in the distribution system of civil buildings.

关 键 词：零线过电流 三相不平衡 3次谐波 电压波动 

分 类 号：TU852[建筑科学]