Effect of Primary Cable Position on Accuracy in Non-Toroidal-Shaped Pass-Through Current Transformer
dc.contributor.author | Guerrero Granados, José Manuel | |
dc.contributor.author | Platero, Carlos A. | |
dc.contributor.author | Blázquez, Francisco | |
dc.contributor.author | Sánchez Férnandez, José Antonio | |
dc.date.accessioned | 2024-09-16T15:10:11Z | |
dc.date.available | 2024-09-16T15:10:11Z | |
dc.date.issued | 2024-08-26 | |
dc.identifier.citation | Sensors 24(17) : (2024) // Article ID 5524 | es_ES |
dc.identifier.issn | 1424-8220 | |
dc.identifier.uri | http://hdl.handle.net/10810/69486 | |
dc.description.abstract | Non-toroidal-shaped primary pass-through protection current transformers (CTs) are used to measure high currents. Their design provides them with a big airgap that allow the passing of several cables per phase though them, which is the main advantage versus toroidal types, as the number of CTs required to measure the whole phase current is drastically reduced. The cables passed through the transformer window can be in several positions. As the isolines of the magnetic field generated by the primary currents are centered in the cables, if these cables are not centered in the transformer window, then the magnetic field will be non-uniform along the transformer core. Consequently, local saturations can appear if the cables are not properly disposed, causing the malfunction of the CT. In this paper, the performance of a non-toroidal-shaped protection CT is studied. This research is focused on the influence of the cable position on possible partial saturations of the CT when it is operating near to its accuracy limit. Depending on the cable position, the ratio of the primary and secondary currents can depart from the assigned ratio. The validation of this phenomenon was carried out via finite element analysis (FEA), showing that partial transformer core saturations appear in areas of the magnetic core close to the cable. By applying FEA, the admissible accuracy region for cable positioning inside the CT is also delimited. Finally, the simulation results are ratified with experimental tests performed in non-toroidal protection CTs, varying the primary cables’ positions, which are subjected to currents up to 5 kA, achieving satisfactory results. From this analysis, installation recommendations are given. | es_ES |
dc.description.sponsorship | This work was supported by the Universidad del País Vasco/Euskal Herriko Unibertsitatea (UPV/EHU) GISEL Research Group and the Basque Government, under grant “IT1522-22”. | es_ES |
dc.language.iso | eng | es_ES |
dc.publisher | MDPI | es_ES |
dc.rights | info:eu-repo/semantics/openAccess | es_ES |
dc.rights.uri | http://creativecommons.org/licenses/by/4.0/es/ | |
dc.subject | cable position | es_ES |
dc.subject | current sensors | es_ES |
dc.subject | current measurement | es_ES |
dc.subject | current transformers | es_ES |
dc.subject | finite element analysis | es_ES |
dc.subject | magnetic sensors | es_ES |
dc.subject | protection transformers | es_ES |
dc.subject | sensitivity analysis | es_ES |
dc.subject | sensor testing | es_ES |
dc.title | Effect of Primary Cable Position on Accuracy in Non-Toroidal-Shaped Pass-Through Current Transformer | es_ES |
dc.type | info:eu-repo/semantics/article | es_ES |
dc.date.updated | 2024-09-13T12:31:40Z | |
dc.rights.holder | © 2024 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/ 4.0/). | es_ES |
dc.relation.publisherversion | https://www.mdpi.com/1424-8220/24/17/5524 | es_ES |
dc.identifier.doi | 10.3390/s24175524 | |
dc.departamentoes | Ingeniería eléctrica | |
dc.departamentoeu | Ingeniaritza elektrikoa |
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Except where otherwise noted, this item's license is described as © 2024 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/ 4.0/).