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Magnetic field analysis and leakage inductance calculation in current transformers by means of 3-D integral methods

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2 Author(s)
Zakrzewski, K. ; Inst. of Electr. Machines & Transformers, Tech. Univ. Lodz, Poland ; Tomczuk, B.

This paper presents 3D integral approach to power current transformer magnetic field and inductance calculations. A minimization of the kernel norm has been carried out for the integral equation governing the field. The software package TRACAL3, based on the integral methods for field and inductance calculations, has been developed and implemented for personal computers. The application of the 3D mathematical models has been made for the leakage field in a current transformer. The results of calculations were compared with measurement data. The comparison yields good agreement

Published in:

Magnetics, IEEE Transactions on  (Volume:32 ,  Issue: 3 )