The instantaneous reduction in voltage of an AC generator, resulting from an increase in load and prior to the automatic voltage regulator correcting the situation, is called what?
• Behavior of an AC generator when load suddenly increases • Role and timing of an automatic voltage regulator (AVR) • Difference between terms: regulation, drop, droop, and dip in power systems
• Focus on the words instantaneous and prior to the regulator correcting—which term describes a brief, momentary change? • Which option usually refers to the steady-state ability of a generator to hold voltage over a range of loads? Eliminate that. • Which term is more commonly linked to governor speed control (frequency) rather than voltage? Use that to rule out another choice.
• Match the definition: a sudden, short-lived reduction in voltage that occurs just as the load increases. • Identify which term usually describes a permanent or sustained difference in voltage between no-load and full-load conditions. • Confirm that the chosen term is associated with transient (momentary) voltage behavior, not long-term regulation.
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