Marine Electrical Systems USCG Question #661 (Set 22)

#1 SSDG was operating in parallel with #2 SSDG in supplying the 480 VAC main bus while sharing the electrical load evenly. As a result of a problem, if #1 SSDG begins to motorize, but the generator has not yet tripped out by the action of the reverse power relay, what would be the indication of this?

Official USCG Answer & Rule Citation

Correct Answer: Option A — The kilowatt meter of #1 SSDG would indicate a negative wattage (a reversed reading).

Under USCG National Maritime Center examination standards, the accepted correct answer is: The kilowatt meter of #1 SSDG would indicate a negative wattage (a reversed reading)..

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