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← TechnologyWhich outcome occurs when an industrial three-phase transformer operates with continuous unbalanced loading conditions?
A)Increased core saturation and harmonics✓
B)Decreased winding insulation breakdown
C)Improved voltage regulation at peak load
D)Reduced eddy current circulating losses
💡 Explanation
When unbalanced loading persists, uneven current distribution in the windings causes increased magnetic flux asymmetry, leading to core saturation and higher harmonic distortion in voltage and current. Therefore increased core saturation results, rather than decreased insulation breakdown or losses, which require more balanced operating conditions.
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