电压法测电流互感器变比极性的研究分析  

Research and Analysis on Measuring Current Transformer’s Transformer’s Polarity by Voltage Method

作　　者：张祥 刘斌 何强[2] ZHANG Xiang;LIU Bin;HE Qiang(Ulanqab Power Supply Branch of Inner Mongolia Electric PowerCo.,Ltd.,Ulanqab 012000,China;Harbin University ofCommerce,Harbin 150028,China)

机构地区：[1]内蒙古电力〈集团〉有限责任公司乌兰察布供电分公司,内蒙古乌兰察布012000 [2]哈尔滨商业大学,黑龙江哈尔滨150028

出　　处：《江西电力职业技术学院学报》2022年第9期13-15,18,共4页Journal of Jiangxi Vocational and Technical College of Electricity

摘　　要：介绍了电流互感器二次回路变比与极性的传统检测方法,详细研究分析了利用电压法测量CT二次回路变比与极性的原理,并提出了一种测变比与极性简易装置的构想与实现方案。该方法不仅可以检测普通电力线路CT,还可用于主变内部ABC三相以及O相套管CT的检验,提升了工作效率,更为检验主变套管CT提供了一种新思维。The traditional detection method of the ratio and polarity of the secondary circuit of the current transformer is introduced.The principle of measuring the ratio and polarity of the secondary circuit of the CT by the voltage method is studied and analyzed in detail.The conception and realization scheme of sexual simple device.The method can not only detect the CT of ordinary power lines,but also can be used for the inspection of the ABC three-phase and O-phase bushing CT inside the main transformer,which improves the work efficiency and provides a new idea for inspecting the main transformer bushing CT.

关 键 词：电流互感器 主变套管 CT变比极性 示波器 

分 类 号：TM773.4[电气工程—电力系统及自动化]