Higher Accuracy Class Current Transformer Using Nano Crystalline Core For Measurement
In this paper some considerations about the application of nanocrystalline alloys in toroidal cores for current
transformers used for measurement purposes are presented. Based on the electromagnetic properties of these materials, such
as high relative magnetic permeability, magnetic flux density saturation, high resistivity and low hysteresis losses are
discussed. Also, will be discussed how the former characteristics affect the current transformer performance. From
experimental results, it can be concluded that the use of nanocrystalline alloys in the current transformer cores can contribute
to the reduction of phase errors, improving thus the accuracy class.
Keywords- Nanocrystalline Alloys; Toroidal Cores; Current Transformer