星形接线与V/V接线电压互感器间的一次侧相序判别  

Discrimination of the Primary-side Phase Sequence Between Star Connection and V/V Connection Voltage Transformers

作　　者：袁明文[1] 

机构地区：[1]云南能源职业技术学院,云南曲靖655001

出　　处：《科技创新与应用》2018年第8期17-19,21,共4页Technology Innovation and Application

摘　　要：文章针对单母线分段的小电流接地系统中,一段母线的电压互感器采用星形接线,另一段母线的电压互感器采用V/V接线。针对这种少见情况,通过画相量图,分析计算两段母线电压互感器二次侧输出端之间的电压,得出通过两段母线电压互感器二次侧输出端之间的电压判断两段母线电源相序是否一致的判断方法。In this paper,the voltage transformer of one bus is connected by star,and the voltage transformer of the other busis connected by V/V in the small current grounding system with single bus segment. In view of this rare situation,this paper,bydrawing the phasor diagram,analyzes and calculates the voltage between the secondary side output terminals of two bus voltagetransformers,and concludes the method of judging whether the phase sequence of the two buses＇ power supply is consistent by thevoltage between the output terminals of the secondary side of the two bus voltage transformers.

关 键 词：单母线分段 星形接线 V/V接线 相量图 相序 判断 

分 类 号：TM451[电气工程—电器]