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← TechnologyWhich outcome occurs when a transformer breaker fails in an open state?
A)Phase imbalance in downstream circuits✓
B)Increased line-to-line voltage levels
C)Harmonic distortion current elimination
D)Improved power factor correction locally
💡 Explanation
An open breaker will interrupt current flow, causing phase imbalance because each phase carries unequal load currents rather than balanced currents. Therefore, the unbalanced currents generate voltage sags, rather than the improved conditions of other choices.
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