Rogowski coil current meters

Author

Rigoni, Mauricio ; Garcia, João S d ; Garcia, Artur Posenato ; Silva, Pedro A Da, Jr. ; Batistela, Nelson Jhoe ; Kuo-peng, Patrick

Author_Institution

Univ. Fed. de Santa Catarina, Florianopolis

Volume

27

Issue

4

fYear

2008

fDate

6/30/1905 12:00:00 AM

Firstpage

40

Lastpage

45

Abstract

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.

Keywords

Hall effect devices; coils; electric current measurement; Hall effect current probe; Rogowski coil current; alternating electric current measuring system; electronic circuits; harmonic content; instrumentation amplifier; noise interferes; nonlinear voltage gain; signal-to-noise rate; Circuit noise; Coils; Current measurement; Electric variables measurement; Frequency; Hall effect; Low-frequency noise; Noise level; Performance analysis; Transducers;

fLanguage

English

Journal_Title

Potentials, IEEE

Publisher

ieee

ISSN

0278-6648

Type

jour

DOI

10.1109/MPOT.2008.924860

Filename

4586241