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← TechnologyWhich consequence results when autoreclosers fail to operate in a three-phase power distribution system following a transient ground fault?
A)Cascading outages expand regionally✓
B)Voltage sag reduces equipment lifespan
C)Harmonic resonance damages capacitors
D)Transformer saturation creates inrush currents
💡 Explanation
Cascading outages expand when autoreclosers cannot perform _fault isolation_, because breakers will fail and escalate problems throughout the grid; therefore regional blackouts result, rather than localized voltage issues or harmonic problems.
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