铁氧体磁环抑制直流线路无线电干扰试验研究

Test Research on the Suppressing Radio Interference of DC Transmission Lines by Ferrite Cores

应用铁氧体磁环高频特性,研究了铁氧体磁环抑制直流线路电晕效应所产生的无线电干扰。实验室试验结果表明,在直流导线上加装铁氧体磁环可以很好地抑制无线电干扰,正极导线和负极导线均有抑制效果,且磁环的材质影响抑制结果。

Applying the frequency characteristic of ferrite cores,this paper investigated the effects of ferrite cores suppressing radio interference produced by the DC transmission line corona effects.Laboratory test results showed that it was very effective to put ferrite cores around the DC conductor for suppressing radio interference.For both the positive line and negative line,this method had the similar inhibition effect.And the material of ferrite cores affected the restrain result.