USCG USCG Electrical
Set 4 • Question #97 of 142
Launch Interactive Practice Room What is the maximum allowable primary current of a 2 KVA step-down transformer with a four to one turns ratio if the primary is connected across a 440 volt line?
A
1.1 amps
B
4.5 amps
✓ Correct Answer
C
18.1 amps
D
27.7 amps
USCG NMC Regulatory Explanation
In USCG Marine Electrical Systems (IEEE 45 and 46 CFR), regarding 'What is the maximum allowable primary current of a 2 KVA step-down transformer with a four to one turns ratio if the primary is connected across a 440 volt line', the compliant technical standard is: '4.5 amps'.
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