DC-Compensated Current Transformer †

Instrument current transformers (CTs) measure AC currents. The DC component in the measured current can saturate the transformer and cause gross error. We use fluxgate detection and digital feedback compensation of the DC flux to suppress the overall error to 0.15%. This concept can be used not only...

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Detalles Bibliográficos
Autores principales: Ripka, Pavel, Draxler, Karel, Styblíková, Renata
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2016
Materias:
Article
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4732147/
https://www.ncbi.nlm.nih.gov/pubmed/26805830
http://dx.doi.org/10.3390/s16010114
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author Ripka, Pavel
Draxler, Karel
Styblíková, Renata
author_facet Ripka, Pavel
Draxler, Karel
Styblíková, Renata
author_sort Ripka, Pavel
collection PubMed
description Instrument current transformers (CTs) measure AC currents. The DC component in the measured current can saturate the transformer and cause gross error. We use fluxgate detection and digital feedback compensation of the DC flux to suppress the overall error to 0.15%. This concept can be used not only for high-end CTs with a nanocrystalline core, but it also works for low-cost CTs with FeSi cores. The method described here allows simultaneous measurements of the DC current component.
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spelling pubmed-47321472016-02-12 DC-Compensated Current Transformer † Ripka, Pavel Draxler, Karel Styblíková, Renata Sensors (Basel) Article Instrument current transformers (CTs) measure AC currents. The DC component in the measured current can saturate the transformer and cause gross error. We use fluxgate detection and digital feedback compensation of the DC flux to suppress the overall error to 0.15%. This concept can be used not only for high-end CTs with a nanocrystalline core, but it also works for low-cost CTs with FeSi cores. The method described here allows simultaneous measurements of the DC current component. MDPI 2016-01-20 /pmc/articles/PMC4732147/ /pubmed/26805830 http://dx.doi.org/10.3390/s16010114 Text en © 2016 by the authors; licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons by Attribution (CC-BY) license (http://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Ripka, Pavel
Draxler, Karel
Styblíková, Renata
DC-Compensated Current Transformer †
title DC-Compensated Current Transformer †
title_full DC-Compensated Current Transformer †
title_fullStr DC-Compensated Current Transformer †
title_full_unstemmed DC-Compensated Current Transformer †
title_short DC-Compensated Current Transformer †
title_sort dc-compensated current transformer †
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4732147/
https://www.ncbi.nlm.nih.gov/pubmed/26805830
http://dx.doi.org/10.3390/s16010114
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AT draxlerkarel dccompensatedcurrenttransformer
AT styblikovarenata dccompensatedcurrenttransformer

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