并联电抗器中性点小电抗运行特性的研究  

Study on operating characteristics of neutral inductance of shunt reactor

作　　者：谢妍[1] 毛哲[1] 陈婧[1] 危文俊[1] 

机构地区：[1]武汉工业学院电气信息工程系,湖北武汉430023

出　　处：《武汉工业学院学报》2010年第2期48-51,共4页Journal of Wuhan Polytechnic University

摘　　要：并联电抗器的中性点小电抗是并联电抗器的一个重要组成部分。它可有效抑制电网发生非全相切合时产生的工频谐振过电压,并能限制潜供电流,提高线路单相重合闸的成功率。根据对并联可控电抗器中性点小电抗的运行特性进行分析,对其值根据主电抗的补偿度来进行调整的可行性及相应的工作特性进行了研究,证实了中性点小电抗的可调性会导致主电抗的补偿度被限制,并会对主电抗器的中性点绝缘造成威胁,故将其值进行可控是不必要的。Neutral inductance is an important component of shunt reactor.It can effectively suppress frequency resonance over-voltage which will occur when the lines is removed or closed with non-phase,limit the arc current,and improve the success rate of single-phase re-closing.Based on the analysis on the operating characteristics of neutral inductance of shunt reactor,its feasibility and performance characteristics are being studied so that the value of the neutral inductance is adjusted according to the degree of compensation of the main reactor,and it proves that its controllability which will lead to the degree of compensation of the main reactor is limited and insulation of its neutral point has been a threat.So it is unnecessary to be set in controllable form.

关 键 词：中性点小电抗 并联电抗器 谐振过电压 潜供电流 

分 类 号：TM472[电气工程—电器]