Effect of DC and Transient Current Components on Instrument Current Transformer Function

Jan Hlaváček, Karel Draxler, Radek Procházka, Vladislav Kvasnička

Abstract

The paper is focused on instrument current transformer (CT) function during non-standard operating state that is caused by DC transient current component. There is described a way, how to build a numerical model, when CT material parameters are known. The numerical model allows behaviour simulation of the real CT, so it is possible to solve the output current time behaviour if there is defined any transient current waveform at its input terminal. Results enumerated by the numerical model were compared with results measured at the real CT. Comparison between enumerated and measured waveforms confirmed the correct design of the numerical model.

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IMEKO-TC4-2005-008.pdf

DOI

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IMEKO TC

TC4 - Measurement of Electrical Quantities

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