Contactless Measurement of Voltage Harmonics on Low Voltage Multi-conductor Cables

Contactless Measurement of Voltage Harmonics on Low Voltage Multi-conductor Cables

César D. P. Crovato  Cristian F. Santos  Tiago A. Pereira  Roberto C. Leborgne  Valner J. Brusamarello 

Programa de Pós-Graduação em Engenharia Elétrica, Unisinos University, São Leopoldo, BRAZIL

Programa de Pós-Graduação em Engenharia Elétrica, (Master Program) Unisinos University, São Leopoldo, BRAZIL

Roberto C. Leborgne is with Federal University of Rio Grande do Sul, Porto Alegre, Brazil

Valner J. Brusamarello Leborgne is with Federal University of Rio Grande do Sul, Porto Alegre, Brazil

Corresponding Author Email:,;;;;
4 Januray 2017
8 January 2017
30 September 2017
| Citation



This paper presents a feasibility study on measure voltage harmonics with a contactless device, on multi-conductor cables. The demonstration is given by a four-conductor cable with a variety of standard dimensions, using an external calibration signal, given the capability to adjust itself “on field”. The results show the proposed methodology is suitable to be used in an electronic circuit; even with many random sources of error, simulated in the environment test.


contactless voltage measurement, harmonic voltage measurement, power quality, harmonic distortion.

1. Introduction
2. The Proposed Hardware and Methodology
3. Results
4. Conclusion

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