低频铁芯式罗果夫斯基线圈饱和问题分析

Analysis on the Saturation of Low-frequency Rogowski Coils with Magnetic Core

针对测量 ms量级低频脉冲大电流铁芯式罗果夫斯基线圈存在的饱和问题 ,讨论了线圈测量正弦衰减形电流时电流最大值与频率和衰减系数的关系 ,并研制了测量 35 0Hz电流的低频线圈。

The magnetic core in Rogowski coils may be saturated when measuring a low frequency pulse current. The relation of the maximum, the frequency and the attenuation factor of the sine attenuation current to be measured is discussed. A 350 Hz coil was developed and an experiment was performed to verify the calculation.