配电系统中零线过电流的抑制方案--终端电气综合治理保护系统的应用  

Restraining Scheme of Zero Line Overcurrent in Distribution System--Application of Terminal Electrical Comprehensive Treatment and Protection System

作　　者：柯瑞盈 KE Ruiying(Keriying Beibu Gulf Port Beihai Wharf Co.,Ltd.,Beihai 536000,China)

机构地区：[1]北部湾港北海码头有限公司,广西北海536000

出　　处：《通信电源技术》2023年第2期67-70,共4页Telecom Power Technology

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 that the terminal box of the power distribution system of a building has zero line overcurrent and abnormal tripping,this paper analyzes the reasons behind the zero line overcurrent and voltage distortion,and puts forward a new solution for similar distribution faults.By analyzing the causes behind the faults,combining with the working principle of the electrical comprehensive treatment protection system,and through the changes of current data before and after the practical application of the on-site electrical comprehensive treatment protection system,this paper expounds the application research of the electrical comprehensive treatment protection system when the distribution system of civil buildings encounters similar three-phase imbalance and zero line overcurrent problems.

关 键 词：零线过电流 三相不平衡 3次谐波 电压波动 

分 类 号：TM7[电气工程—电力系统及自动化]