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Application of the Field-Circuit Method for the Computation of Measurement Properties of Current Transformers With Cores Consisting of Different Magnetic Materials

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2 Author(s)
Lesniewska, E.E. ; Dept. of Appl. Electr. Eng. & Instrum. Transformers, Tech. Univ. of Lodz, Lodz, Poland ; Rajchert, R.

We report on results of research (magnetic field distributions of current transformers, current error, and phase displacement diagrams) on the influence of two different magnetic materials in a core construction on transformation errors of a current transformer. We made analyses of the electromagnetic field distribution for different cases of current transformers and carried out computations based on the finite-element numerical method. We compared the results with tests of a real-life model.

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Magnetics, IEEE Transactions on  (Volume:46 ,  Issue: 10 )