VFTO作用下电子式电流互感器二次端口电磁特性仿真分析

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Abstract Electronic current transformers, with excellent properties of simple insulation, small volume, light weight, wide dynamic range, and no magnetic saturation, have been widely used in substations. With the fast improvement of substation voltage grade, the electromagnetic interference (EMI) problem of switching operation overvoltage, especially very fast transient overvoltage (VFTO), on electronic transformers in substations has gotten more and more attention. In this paper, the physical process of VFTO in high voltage substations is analyzed. The high frequency model of Rogowski coil in electronic transformers under VFTO is built, the simulated waveform of the signals at the output ports of Rogowski coil is obtained. It is proved that the distribution parameters model can reflect the high frequency characteristics better by comparing the waveform of distribution parameter model, lumped parameter model and the measured signal waveform.

Key words： Electronic transformer Rogowski coil very fast transient overvoltage electromagnetic compatibility

Received: 31 March 2015 Published: 18 August 2016

PACS:

TM86

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	Articles by authors
	Zhang Jiangong
	Zhao Jun
	Xie Pengkang
	Chen Henglin

Cite this article:

Zhang Jiangong,Zhao Jun,Xie Pengkang等. Simulation and Analysis of Electromagnetic Properties at the Secondary Port of Electronic Current Transformers Under Very Fast Transient Overvoltage[J]. Transactions of China Electrotechnical Society, 2015, 30(增刊2): 88-94.

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https://dgjsxb.ces-transaction.com/EN/ OR https://dgjsxb.ces-transaction.com/EN/Y2015/V30/I增刊2/88

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