Published January 1, 2016
| Version v1
Conference paper
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International Comparison of Current Transformer Calibration Systems up to 10 kA at 50 Hz Frequency
Creators
- Draxler, K.1
- Styblikova, R.2
- Rietveld, G.3
- van den Brom, H.3
- Schnaitt, M.4
- Waldmann, W.4
- Dimitrov, E.5
- Cincar-Vujovic, T.6
- Paczek, B.7
- Sadkowski, G.7
- Crotti, G.8
- Martin, R.9
- Garnacho, F.9
- Blanc, I.10
- Kampfer, R.11
- Mester, C.11
- Wheaton, A.12
- Mohns, E.13
- Bergman, A.14
- Hammarquist, M.14
- Hammarquist, M.14
- 1. Czech Tech Univ, Prague, Czech Republic
- 2. CMI, Brno, Czech Republic
- 3. VSL, Delft, Netherlands
- 4. BEV, Villach, Austria
- 5. BIM, Sofia, Bulgaria
- 6. DMDM, Belgrade, Serbia
- 7. GUM, Warsaw, Poland
- 8. INRIM, Turin, Italy
- 9. LCOE, Madrid, Spain
- 10. LNE, Paris, France
- 11. METAS, Koniz, Switzerland
- 12. NPL, Teddington, Middx, England
- 13. PTB, Braunschweig, Germany
- 14. SP, Gothenburg, Sweden
Description
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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