| 保护用超大电流互感器的屏蔽方案分析 |
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| 引用本文： | 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):90-94. |
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| 作者姓名： | 张璐 李顺昕 李海滨 朱正甲 宋堃 申惠琪 张嵩 |
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| 作者单位： | 国网冀北电力有限公司经济技术研究院,北京,100045 |
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| 摘 要： | 文中对保护用超大电流互感器的屏蔽方法进行了对比分析,针对平衡绕组常用的两种连接方式——"反极性串"和"四段全并",先利用有限元数值计算软件ANSYS仿真计算出各绕组的电感和彼此间的互感,进而通过分析其线性电路模型,求解各绕组的电流及测量误差;通过比较两种屏蔽方案对杂散磁通的屏蔽效果和发热量,给出了优选建议。
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| 关 键 词： | 保护用电流互感器 屏蔽 测量误差 发热量 |
| 收稿时间： | 2015/2/9 0:00:00 |
| 修稿时间： | 2015/2/16 0:00:00 |
The Analysis on Shielding Methods of Protective Heavy Current Transformer |
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| zhanglu,lishunxin,lihaibin,zhuzhengji,songl,shenhuiqi and zhangsong.The Analysis on Shielding Methods of Protective Heavy Current Transformer[J].Electrical Measurement & Instrumentation,2016,53(8):90-94. |
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| Authors: | zhanglu lishunxin lihaibin zhuzhengji songl shenhuiqi and zhangsong |
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| Affiliation: | State Grid Jibei Electric Economic Research Institute,aaa,aaa,aaa,aaa,aaaa,aaaa |
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| Abstract: | 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. |
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| Keywords: | protective current transformer shielding measurement error heat radiation |
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