Which mechanism causes voltage imbalance in a three-phase power distribution system when single-phase loads are unevenly distributed?

💡 Explanation

When single-phase loads are unevenly distributed, it causes an increased neutral current flow because the phase currents are no longer balanced, leading to unequal voltage drops across the source impedance. Therefore, increased neutral current flow results, rather than saturation, resonance or distortion which require non-linear load conditions.

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