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Influence of busbar geometry on AC current measurement using Rogowski coil

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2 Author(s)
Chekurov, Y. ; MIKES-TKK, Helsinki Univ. of Technol., Helsinki ; Hallstrom, J.

Readout of a Rogowski coil is affected by external magnetic fields e.g. from the energizing transformer and the return current conductor. The influence of these external magnetic fields on the reading of a high precision Rogowski coil was measured. The results are used to estimate the achievable uncertainty in calibration of current transformers up to 10 kA.

Published in:

Precision Electromagnetic Measurements Digest, 2008. CPEM 2008. Conference on

Date of Conference:

8-13 June 2008