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← TechnologyWhich consequence results when grid operators miscalibrate a three-phase power system's Automatic Voltage Regulator (AVR) setpoints?
A)Reactive power oscillation increases heavily✓
B)System frequency stabilizes substantially
C)Transformer core saturation risk decreases
D)Transmission line losses reduce notably
💡 Explanation
Miscalibration causes voltage phase imbalances inducing circulating currents; the Automatic Voltage Regulator's intended **negative feedback** fails because corrective commands amplify rather than damp oscillations around the setpoint. Therefore, oscillations increase, rather than stability, and core saturation becomes more rather than less likely.
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