Marine Electrical Systems USCG Question #932 (Set 32)

As shown in figure "A" of the illustration, the load-commutated inverter drive illustrated has how many pulses? EL-0159

USCG Exam Illustration EL-0159
USCG Examination Diagram: Illustration EL-0159
Official USCG Answer & Rule Citation

Correct Answer: Option B — 6

Standard marine load-commutated inverter drives utilizing a three-phase bridge configuration typically employ a six-pulse thyristor arrangement for rectification and inversion stages to convert and control power delivered to synchronous propulsion motors.

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