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← TechnologyWhich outcome occurs when harmonic currents overload delta-wye distribution transformers?
A)Increased eddy current core losses.✓
B)Improved voltage regulation performance.
C)Reduced skin effect in windings.
D)Enhanced transformer cooling efficiency.
💡 Explanation
Increased eddy current core losses results because harmonic currents cause higher frequency flux variations leading to increased excitation current. This leads to greater heat generation via hysteresis and eddy currents, therefore transformer overheating occurs rather than improved efficiency or cooling.
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