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[7s, 2010] 

Journal of Electrical Engineering, Vol 61, 7s (2010) 133-136

STRAY FIELD MEASUREMENT DURING POWER TRANSFORMER ENERGIZING

Miroslav Novák

   This work verifies the significance of the transformer primary stray field to the inrush current magnitude. This study is presented computational method derived from a well-known published formula related to deep saturation of the transformer core. The results of the numerical model based on the theoretical analysis are compared to measurements for four winding configurations. The axial component of the magnetic field in the transversal gap of coils is presented during the transformer energizing.

Keywords: transformer, inrush current, magnetic stray field


[full-paper]


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