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Which outcome occurs when harmonic currents increase in a power distribution circuit connected to variable frequency drives?

A)Transformer core saturation occurs
B)Improved power factor performance
C)Reduced skin effect losses
D)Enhanced three-phase balance

💡 Explanation

Increased harmonic currents can lead to transformer core saturation because the frequencies distort the established sinusoidal flux, which increases the B-H curve traversal; therefore, core saturation occurs, rather than improved power factor, which relies on minimizing reactive power flows.

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