Karel Draxler

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  • Jan Hlavacek, Radek Prochazka, Karel Draxler, Vladislav Kvasnicka
  • 2008
The Rogowski coil is a current measuring element, galvanic separated from measured current. Account on structural simplicity and low price of electronic devices processing its output signal, the Rogowski coil is more used in electroenergetics. The paper deals with the design of the Rogowski coil in wider frequency range. Required parameters of the Rogowski(More)
Instrument current transformers (CTs) measure AC currents. The DC component in the measured current can saturate the transformer and cause gross error. We use fluxgate detection and digital feedback compensation of the DC flux to suppress the overall error to 0.15%. This concept can be used not only for high-end CTs with a nanocrystalline core, but it also(More)
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