摘要
阐述进行低压配电线路故障电弧研究的背景及意义,分析线路上故障电弧的产生条件、分类及特征,选取适用于低压配电系统的电弧数学模型,建立低压配电线路单相电弧性短路故障数学模型,通过仿真实验分析线路上发生电弧性短路故障时断路器过电流保护的局限性,说明电弧故障断路器应用的必要性,并提出电弧故障断路器的应用前景。
Background and significance of studying fault arc of low-voltage distribution circuit are illustrated ; and production conditions, classification and features of fault arc in circuit are analyzed in this paper. A mathematical model for single-phase arc fault of low-voltage distribution circuit is established by choosing an arc mathematical model suitable for low-voltage distribution system. With the simulation experiment analysis on limitation of overcurrent protection of breaker in case of arc short-circuit fault of the circuit, the necessity of using arc fault breaker is illustrated, and the application prospect of arc fault breaker is proposed.
出处
《建筑电气》
2014年第3期45-49,共5页
Building Electricity
关键词
电弧
故障电弧
电弧性短路故障
低压配电系统
数学模型
仿真分析
动作延迟
电弧故障断路器
arc
fault arc
arc short-circuit fault
low-voltage distribution system
mathematical model
simulation analysis
action delay
arc fault circuit interrupter
