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Which risk increases when applying pulsating DC currents to transformers?

A)Core saturation hysteresis losses increase
B)Eddy current losses greatly decrease
C)Improved transient voltage suppression
D)Reduced dielectric breakdown likelihood

💡 Explanation

Applying pulsating DC causes unidirectional magnetic field buildup within the core via magnetic hysteresis, therefore saturation occurs because the B-H curve deviates from linearity, rather than decreased eddy currents from mitigated AC field fluctuation effects.

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