Nanocrystalline material in toroidal cores for current transformer: analytical study and computational simulations

Materials Research

Benedito Antonio Luciano²  João Marcelo Cavalcante De Albuquerque²  Walman Benício De Castro¹  Conrado Ramos Moreira Afonso¹ 

[1] ,UFCG CEEI Department of Electrical EngineeringCampina Grande PB ,Brazil

关键词: nanocrystalline alloys;    toroidal cores;    current transformer;   

DOI  :  10.1590/S1516-14392005000400007

来源: SciELO

【 摘 要 】

Based on electrical and magnetic properties, such as saturation magnetization, initial permeability, and coercivity, in this work are presented some considerations about the possibilities of applications of nanocrystalline alloys in toroidal cores for current transformers. It is discussed how the magnetic characteristics of the core material affect the performance of the current transformer. From the magnetic characterization and the computational simulations, using the finite element method (FEM), it has been verified that, at the typical CT operation value of flux density, the nanocrystalline alloys properties reinforce the hypothesis that the use of these materials in measurement CT cores can reduce the ratio and phase errors and can also improve its accuracy class.

【 授权许可】

CC BY   
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