TY - JOUR
TI - Application of graphene and newly developed amorphous alloys in current transformers
	for railway applications
AU - Petruk, Oleg
AU - Szewczyk, Roman
AU - Winiarski, Wojciech
AU - Nowicki, Michał
TI - Application of graphene and newly developed amorphous alloys in current transformers
	for railway applications
AB - 
	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.
VL - 2016
IS - Elektrotechnika Zeszyt 1-E (2) 2016
PY - 2016
SN - 0011-4561
C1 - 2353-737X
SP - 131
EP - 137
DO - 10.4467/2353737XCT.16.035.5297
UR - https://ejournals.eu/czasopismo/czasopismo-techniczne/artykul/application-of-graphene-and-newly-developed-amorphous-alloys-in-current-transformers-for-railway-applications
KW - graphene
KW - amorphous alloys
KW - current transformer