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← TechnologyWhich outcome develops when a sudden, large load is switched onto a three-phase power distribution system?
A)Voltage sag from impedance limitations✓
B)Harmonic distortion from transformer saturation
C)Resonance from capacitive coupling
D)Line tripping from excessive current imbalance
💡 Explanation
When a large load is switched on, voltage sag occurs because the system's impedance limits the instantaneous current supply, causing a drop in voltage at the load. Therefore, voltage sag results, rather than distortion, resonance, or tripping, which require different system faults.
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