张璐,李顺昕,李海滨,朱正甲,宋堃,申惠琪,张嵩.保护用超大电流互感器的屏蔽方案分析[J].电测与仪表,2016,53(8):. zhanglu,lishunxin,lihaibin,zhuzhengjia,songla,shenhuiqi,zhangsong.The Analysis on Shielding Methods of Protective Heavy Current Transformer[J].Electrical Measurement & Instrumentation,2016,53(8):.
保护用超大电流互感器的屏蔽方案分析
The Analysis on Shielding Methods of Protective Heavy Current Transformer
The paper compares two shielding methods, when shielding coils are in reverse-polarity series connection and in parallel connection, calculates the inductance with ANSYS, and analyses the linear circuit model, to obtain the coils" current and measurement error. Then the paper compares the shielding effects and heat, to make the judgment that which method is better.