采用Rogowski线圈测量雷电冲击电流

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.

Thunder Current Measurement Using Rogowski coil

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 in this paper, and it is 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.