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

K. Draxler, R. Styblíková, J. Hlavacek, G. Rietveld, H.E. van den Brom, M. Schnaitt, Wolfgang Waldmann, E. Dimitrov, T. Cincar-Vujovic, B. Paczek, G. Sadkowski, G. Crotti, R. Martin, F. Garnacho, I. Blanc, R. Kämpfer, C. Mester, A. Wheaton, E. Mohns, A. BergmanM. Hammarquist, H. Çayci, Jari Hällström, Esa-Pekka Suomalainen

    Research output: Chapter in Book/Report/Conference proceedingConference article in proceedingsScientificpeer-review

    2 Citations (Scopus)

    Abstract

    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.
    Original languageEnglish
    Title of host publicationCPEM 2018 - Conference on Precision Electromagnetic Measurements
    PublisherIEEE Institute of Electrical and Electronic Engineers
    Number of pages2
    ISBN (Electronic)978-1-5386-0974-3 , 978-1-5386-0973-6
    DOIs
    Publication statusPublished - 2018
    MoE publication typeA4 Article in a conference publication
    EventConference on Precision Electromagnetic Measurements, CPEM 2018 - Paris, France
    Duration: 8 Jul 201813 Jul 2018

    Conference

    ConferenceConference on Precision Electromagnetic Measurements, CPEM 2018
    Abbreviated titleCPEM
    CountryFrance
    CityParis
    Period8/07/1813/07/18

    Keywords

    • comparison
    • current measurement
    • Current ratio
    • current transformers (CT)
    • high current
    • instrument transformers
    • phase displacement
    • ratio error

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