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Rogowski coil current meters

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6 Author(s)
Rigoni, M. ; Univ. Fed. de Santa Catarina, Florianopolis ; Garcia, J.S.D. ; Garcia, A.P. ; Da Silva, P.A.
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This study has analyzed the performance of an alternating electric current measuring system using a Rogowski coil as a transducer, applied to magnitudes of milliamps to hundreds of amperes. It has been noticed that for low amplitudes, as well as for low frequencies, noise interferes with precision. For operation levels with a better signal-to-noise rate, the results presented agreements with those from a Hall effect current probe. Although prototypes have been carefully constructed, performance can be improved by the use of more appropriate winding techniques as well as through improvement in electronic circuits.

Published in:

Potentials, IEEE  (Volume:27 ,  Issue: 4 )