Transformador de corrente com núcleo de liga nanocristalina para medição.

Abstract

In this work is presented some considerations about the application of nanocrystalline alloys in toroidal cores for current transformers used for measurement purposes. Based on the electromagnetic properties of these materials, such as high relative magnetic permeability, saturation flux density of magnetic, high resistivity and low hysteresis losses, are discussed the ways in which these characteristics affect the performance of the current transformer. From these results, it can be concluded that the use of nanocrystalline alloys in the cores of these devices can contribute to the reduction of phase errors, improving thus the accuracy class.