In the standard delta or wye configuration, individual single-phase AC transformers cannot be haphazardly wired together to form a 3-phase AC transformer bank.
To prevent suicidal currents to the transformers; all three transformers in the bank must
_____________.
A) have the same or equal kVA ratings
B) be of the same construction (either core or shell)
C) All of The answers
D) have identical resistances, reactances, and impedances
E) have identical turn-ratios and the same high- and low-voltage ratings
Show Answer
Answer:C
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