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Results of an International Comparison of Instrument Current Transformers up to 10 kA at 50 Hz Frequency

Draxler, K. (author)
CTU, Czech Republic
Styblikova, R. (author)
CMI, Czech Republic
Hlavacek, J. (author)
CTU, Czech Republic
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Rietveld, G. (author)
VSL, Netherlands
Van Den Brom, H. E. (author)
VSL, Netherlands
Schnaitt, M. (author)
BEV, Austria
Waldmann, W. (author)
BEV, Austria
Dimitrov, E. (author)
BIM, Bulgaria
Cincar-Vujovic, T. (author)
DMDM, Serbia
Paczek, B. (author)
GUM, Poland
Sadkowski, G. (author)
GUM, Poland
Crotti, G. (author)
INRIM, Italy
Martin, R. (author)
LCOE, Spain
Garnacho, F. (author)
LCOE, Spain
Blanc, I. (author)
LNE, France
Kampfer, R. (author)
METAS, Switzerland
Mester, C. (author)
METAS, Switzerland
Wheaton, A. (author)
NPL, UK
Mohns, E. (author)
PTB, Germany
Bergman, Anders (author)
RISE,Mätteknik
Hammarquist, Maria (author)
RISE,Mätteknik
Cayci, H. (author)
UME, Turkey
Hallstrom, J. (author)
VTT, Finland
Suomalainen, E. -P (author)
VTT, Finland
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 (creator_code:org_t)
2018
2018
English.
In: CPEM 2018 - Conference on Precision Electromagnetic Measurements. - 9781538609736
  • Conference paper (peer-reviewed)
Abstract Subject headings
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  • Traceability of the current ratio is crucial for the measurement of electrical energy in revenue metering. A comparison of the AC current ratio was therefore performed within EURAMET in the time period 2012-2016, using a precision CT as the traveling device. The Czech Metrology Institute (CMI) as coordinator processed the measurement results of the 15 European participating laboratories. The comparison of the results for transformer ratios of (4, 5, 6, 8, 10) kA 5 A at 15 VA burden and (4 and 10) kA 5 A ratios at 5 VA burden indicates good agreement between the participating laboratories. The main differences are found for phase displacement, at least in part due to instability of the traveling standard. .

Keyword

comparison
current measurement
Current ratio
current transformers (CT)
high current
instrument transformers
phase displacement
ratio error
Electric current measurement
Current ratios
High currents
Electric instrument transformers

Publication and Content Type

ref (subject category)
kon (subject category)

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