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← TechnologyWhich outcome occurs when excessive harmonic currents are present in a three-phase power system neutral conductor?
A)Increased reactive power compensation
B)Conductor overheating and potential failure✓
C)Improved power factor at the source
D)Reduced voltage imbalances between phases
💡 Explanation
When excessive harmonic currents are present, the triplen harmonics (3rd, 9th, etc.) from each phase add arithmetically in the neutral conductor, because they are in phase. Therefore, conductor overheating and potential failure results, rather than compensation, power factor improvement, or reduced imbalance, which involve different reactive components.
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