空心线圈式电流互感器的干扰磁场研究

电子式线圈电流互感器的原理、结构及输出信号等与传统的电磁式电流互感器有很大不同,其性能会受外界磁场等因素的影响。本文对影响空心线圈电流互感器性能的电磁干扰因素进行详细分析,在理论分析的基础上给出相应的改进措施。实验表明,改进后的空心线圈电流互感器受外界磁场的影响很小,互感器的稳定性满足实用化要求。

Research on the Factors of Disturbance Magnetic Field of Improved Aircore Coil Current Transformer

The principle,structure and output signal of an aircore coil current transformer are different with that of a traditional current transformer of the inductive type.The performance of an aircore coil current transformer could be affected by disturbance magnetic field.The causes of affecting the performance of an aircore coil current transformer are analyzed in detail in this paper.Some measures to improve the performance of an aircore coil current transformer are proposed.Testing results show that the stabil...