Marine Electrical Systems USCG Question #485 (Set 17)

As shown in the illustration, what type of starter is illustrated? Illustration EL-0104

USCG Exam Illustration EL-0104
USCG Examination Diagram: Illustration EL-0104
Official USCG Answer & Rule Citation

Correct Answer: Option A — reduced voltage primary resistance starter

Primary resistance starters insert resistors in series with the motor stator windings during initial startup to limit inrush current and reduce starting torque. After a timed acceleration period, shorting contactors bypass the resistors, applying full line voltage for normal running operation.

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