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The modeling and prediction of the iron loss inside components under extreme excitation, including DC-biasing, multi-harmonic or PWM supplies, in large electromagnetic devices, are becoming increasingly important. However, the related measurement and electromagnetic analysis are quite challenging due to the material's working property data measurement and the 3-D transient field computation under...
Inrush currents are high magnitude currents generated typically during energization of a transformer, being a large transient caused by saturation of the magnetic core of the transformer. The magnitudes of the inrush currents can be initially several times the rated load current which will cause error actions of the relay protection equipment [1]. When a transformer is put into operation at the optimal...
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