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← TechnologyWhich unstable outcome always occurs when inductive current switching affects a high-voltage DC transmission breaker circuit?
A)Extreme electromagnetic interference cascades globally
B)Significant voltage overshoot is induced✓
C)Sub-harmonics generate grid resonance events
D)Capacitor bank transformer winding saturation
💡 Explanation
High voltage DC interruption causes voltage overshoot because the sharp current change induces a large voltage across unavoidable circuit inductance due to `electromagnetic induction`; therefore, insulation breaks down rather than current diverting as intended during surges.
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