铁芯CT的在线消磁方法

2015 IEEE Magnetics Conference (INTERMAG) Pub Date : 2015-07-16 DOI:10.1109/INTMAG.2015.7157048

T. Zheng, E. Hu, H. Yang, R. Zhao, Y. Kang, V. Terzija

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引用次数: 0

摘要

提出了一种铁芯电流互感器的退磁方法。利用直流电压源对电感器充电，利用电感器充电后的放电效应对铁芯CT的剩余磁通进行退磁。为了验证所提方法的性能，利用EMTP-RV模拟器分析了不同磁芯特性、剩余磁通水平以及各元素和实测磁芯特性可能存在的误差。

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On-line demagnetization method for an iron core CT

This paper proposes a demagnetization method for iron core current transformers (CT). A dc voltage source is used to charge an inductor, and the discharging effect of the charged inductor is used to demagnetize the remanent flux of the iron core CT. To verify the performance of the proposed method, the different core characteristics, level of remanent flux, and possible errors in all elements and measured core characteristics are analyzed with EMTP-RV simulator.

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来源期刊

2015 IEEE Magnetics Conference (INTERMAG)

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