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← TechnologyIn a three-phase transformer bank supplying a remote industrial load, which acute effect results when one transformer unexpectedly fails?
A)Increased circulating currents overheat remaining units
B)Voltage imbalance degrades motor performance✓
C)Harmonic distortion damages sensitive electronics
D)Substation trips to prevent system blackout
💡 Explanation
A missing phase causes severe voltage imbalance because spatial symmetry needed for balanced three-phase voltage is broken, which degrades any three-phase motor performance attached to this transformer bank. Therefore, voltage imbalance occurs, rather than predictable circulating currents or predictable substation protection.
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