For lightning suppression and electrical safety in terms of proper electrical-power control, distribution, and utilization equipment enclosure grounding and ground-fault overcurrent return, the 3-phase AC, 3-wire, _____________ -connected primary with a 3-phase AC, 4-wire, _____________ -connected secondary, is the more common electrical-power distribution system found in a given building or other structure.
A) none of the answers
B) delta; wye
C) delta; delta
D) wye; delta
Show Answer
Answer:B
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