Improvement of Transformer Core Loss by Use of Low-Loss Electrical Steel
The results of an experimental investigation of the influence of high permeability grain-oriented (HGO) steel on transformer core loss are presented. The power losses of cores assembled with HGO material of grade M2H and with conventional grain-oriented material of grade M5 are compared. The aim of the investigation was to determine the influence of a number of parameters (e.g. single-phase and three-phase core forms, different corner and T-joint designs, core proportions, core dimensions, a number of laminations per stagger layer, overlap length) on the amount of loss reduction in the cores of HGO material.
KeywordsPower Loss Core Loss Electrical Steel Core Dimension Loss Reduction
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- 1.Z. Valković, Improvement of transformer magnetic properties by use of high permeability grain-oriented silicon steel, Digests of INTERMAG Conference, Florence, 1978.Google Scholar
- 2.A.J. Moses, Problems in the use of high permeability silicon iron transformer cores, J. Magn. Mat., vol. 19, No. 1–3, 1982.Google Scholar
- 3.Z. Valković, Influence of transformer core design on power losses, IEEE Trans. Magn., vol. MAG-18, No.2, 1982.Google Scholar