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Which outcome occurs when ground fault occurs on distribution transformer secondary circuit?

A)Overcurrent protection tripping instantaneously
B)Voltage imbalance causing motor overheating
C)Transformer core saturation from DC current
D)Resonance generating harmonic amplification

💡 Explanation

When a ground fault occurs, a high fault current flows through the grounding path activating the overcurrent protection device, such as a circuit breaker, instantaneously due to exceeding its trip threshold.. Therefore overcurrent protection tripping results, rather than imbalance, core saturation, or resonance which require different conditions.

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