Which consequence results when grid operators miscalibrate a three-phase power system's Automatic Voltage Regulator (AVR) setpoints?

💡 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.

• In a wind turbine's pitch control experiencing high winds, which outcome occurs when the control algorithm oscillates?
• What type of actuator instability arises if a hydraulic control valve's poppet rapidly oscillates relative to its seat?
• Which risk increases as optical fiber's signal bandwidth nears the Nyquist limit during high-speed signal processing?
• Which outcome occurs when dissolved gas content, exceeding the saturation point, accumulates within an ultrasonic transducer's hydraulic coupler?
• Which outcome occurs when a turbocharger's compressor increases air density beyond engine's fuel injector capacity?
• Which phenomenon limits high-frequency performance in piezoelectric actuators used for nanopositioning stages?