A Current Compensated Transformer for Measurement of Large AC Currents in Power Networks

Jaroslav LOKVENC, René DRTINA, Josef SEDIVY, Jakub JANOUCH, Michal ZAVŘEL

Abstract


Article presents preliminary results of development and experimental research in the field of measuring large AC currents in industrial applications in fluid power systems and energy networks. It presents the possibility of using current-compensated transformer for measuring purposes and results. The magnetic induction in the ferromagnetic core is in current-compensated transformer is practically zero. The transformer can therefore be designed as a broadband with the possibility to measure the AC current of arbitrary shape, with high short-term overload capacity without affecting the measurement accuracy.

Keywords


Transformer, AC current, Measurement linearity, Power networks, Magnetic flux, Magnetic field, Power dissipation, Thermal loading.


DOI
10.12783/dtetr/iceea2016/6666

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