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← TechnologyWhich 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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