Marine Electrical Systems USCG Question #715 (Set 24)

What will be the impact of reduced voltage applied to a motor during the starting period?

Official USCG Answer & Rule Citation

Correct Answer: Option D — decrease the starting current and increase the acceleration time

Reducing starting voltage decreases initial inrush current proportionally according to Ohm's law. Consequently, lower motor torque slows acceleration, extending the total acceleration time required to reach rated operating speed under load, a critical factor in marine distribution transient analysis.

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