采用Rogowski线圈测量雷电冲击电流  

Thunder Current Measurement Using Rogowski Coil

作　　者：王东举[1] 周浩[1] 

机构地区：[1]浙江大学电气工程学院,杭州310027

出　　处：《传感技术学报》2007年第11期2531-2534,共4页Chinese Journal of Sensors and Actuators

摘　　要：传统电磁式CT应用在高频大暂态电流测量中存在波形失真的不足,而Rogowski线圈可以较好地用于该类冲击电流幅值及波形的测量.通过对一个实际Rogowski线圈的动态特性进行理论计算并仿真,再与实测结果相对比.对比分析结果表明,Rogowski线圈在大幅度范围里对雷电冲击电流测量精度都能满足要求.The shortcoming that waveform distortion exits in the use of large scope and high speed transient current measurement through current transformer;on the contrary such measurement on impluse current can be put up well with the Rogowski coil.The dynamic property of a practical coil is analyzed theoretically,and compared with the result of experiments on the coil.the conclusion that the precision which is required in the measurement on impulse current of a large scale can be satisfed through Rogowski coil is achieved.

关 键 词：冲击电流测量 动态特性 频谱分析 ROGOWSKI线圈 

分 类 号：TM89[电气工程—高电压与绝缘技术]