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Tiexi Road Anyang Power Supply Company

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High Frequency Characteristic Of Rogowski Coil Ping Li; Tao Liang; Yangchun Cheng; Liang Zhao
Indonesian Journal of Electrical Engineering and Computer Science Vol 10, No 8: December 2012
Publisher : Institute of Advanced Engineering and Science

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Abstract

According to the transfer impedance getting from distributed parameter model,we analyse the influences of magnetic conductivity ，the number of turns ,capacitance to the shield and interturn capacitance on the high frequency characteristic of Rogowski coil through theories and simulations. Simulation shows that there are a series of zeros in high frequency band, but on the whole, the high frequency response does not change with the increase of frequency. The magnetic conductivity, number of turns and capacitance to the shield can influence the frequency at which zero appears, but the high frequency characteristic of Rogowski coil can’t be influenced. Considering the interturn capacitance, the curve of high-frequency response characteristic presents a "V" shape ", and this leads to the reduction of higher cut-off frequency. So we should try to decrease the interturn capacitance to reduce the influence on the high frequency characteristic. DOI: http://dx.doi.org/10.11591/telkomnika.v10i8.1688
Co-Authors Ping Li Tao Liang Yangchun Cheng