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  • Draxler, K., et al. (author)
  • International comparison of current transformer calibration systems up to 10 kA at 50 Hz frequency
  • 2016
  • In: 2016 Conference on Precision Electromagnetic Measurements (CPEM 2016). - 9781467391344
  • Conference paper (peer-reviewed)abstract
    • Current transformers (CTs) are precision devices that scale high currents down to values that can be easily handled by measurement equipment. To support CT applications in revenue metering, a comparison on AC current transformer calibration systems was performed among 15 European national metrology institutes using a precision CT as the travelling device. The first comparison results for the transformation ratios (4, 5, 6, 8, 10) kA/5 A of the travelling CT at nominal burden of 5 VA and 15 VA indicate good agreement between the participating laboratories. The main differences are found for phase displacement, at least partly caused by the instability of the traveling standard.
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