Application of graphene and newly developed amorphous alloys in current transformers for railway applications

Oleg Petruk , Michał Nowicki , Roman Szewczyk , Wojciech Winiarski


Paper present practical solutions based on the utilization of graphene and amorphous alloys for construction of DC current transformer. Proposed solution is competitive as for the metrological properties and overall dimensions, and is well suited for the measurements of large currents in the railway traction. Use of amorphous alloys as magnetic materials for low-hysteresis and high- permeability cores, and development of highly sensitive graphene-based Hall effect sensors, allow for substantial improvements in the open feedback loop DC current transformers construction. In order to verify the usefulness of the developed DC current transformer, its characteristic was investigated. High linearity of the sensor is confirmed by the R-square parameter exceeding 0.99. The repeatability of the measurements was in the range of 1%. The properties of these materials raise the prospect of changes in the construction of the DC current transformers and open up the perspective of a number of innovative projects in the railway industry, in the current measurements area.
Author Oleg Petruk
Oleg Petruk,,
, Michał Nowicki IMIB
Michał Nowicki,,
- The Institute of Metrology and Biomedical Engineering
, Roman Szewczyk IMIB
Roman Szewczyk,,
- The Institute of Metrology and Biomedical Engineering
, Wojciech Winiarski
Wojciech Winiarski,,
Journal seriesCzasopismo Techniczne, ISSN 0011-4561, e-ISSN 2353-737X
Issue year2016
Publication size in sheets0.5
Keywords in Englishgraphene, amorphous alloys, current transformer
Languageen angielski
Score (nominal)13
ScoreMinisterial score = 13.0, 28-11-2017, ArticleFromJournal
Ministerial score (2013-2016) = 13.0, 28-11-2017, ArticleFromJournal
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