不对称三相静负载电路的分析  

Analysis of Three-phase Asymmetric Static Loads

作　　者：毛自娟[1] 

机构地区：[1]兴义民族师范学院,贵州兴义562400

出　　处：《兴义民族师范学院学报》2011年第4期116-118,124,共4页Journal of Minzu Normal University of Xingyi

摘　　要：在三相电路中,三相电源、三相负载和三相输电线路只要有一部分不对称就称为不对称三相电路。当负载不对称时,负载中性点发生位移,中性点位移造成各相负载电压不平衡,其后果是影响负载正常运行,严重时将导致负载被毁。通过采用结点法分析不对称三相静负载电路,讨论不对称负载对三相电路的影响及中性线在三相四线制供电系统中的重要作用。In Three-phase systems, three-phase power, three-phase loads and three-phase transmission line as long as one part of which is unbalanced is called asymmetric three-phase circuit. When the load is asymmetry,the load neutral point displacement,the neutral point displacement caused by the load voltage not to be balanced,the consequence is the effect of load in normal op- eration,serious and will cause the load to be destroyed. Through the use of nodal method analysis of asymmetric three-phase static load circuit, discusses the effects of asymmetric load on the three-phase circuit and the neutral line in the three-phase four-wire power supply system of the important role.

关 键 词：三相电路 不对称静负载 中性线 结点分析法 

分 类 号：TM131[电气工程—电工理论与新技术]