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← TechnologyWhich risk dramatically increases when attempting to synchronize an out-of-phase three-phase power grid involving closing a circuit breaker?
A)Transformer core saturation occurs rapidly
B)Synchronous condenser field oscillations
C)Severe, destructive current inrush results✓
D)Transmission line resonant frequency shifts
💡 Explanation
Severe inrush current becomes dangerous because the *principle of superposition* adds the voltage differences at each phase, significantly increasing the peak current. Therefore, destructive current inrush results, rather than transformer saturation which is a slower process needing sustained overvoltage.
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