The delta-to-delta transformation of a 3-phase AC electrical-power distribution system was the preferred electrical-power distribution in a building or other structure for many years in the industry because of the ability of the 3-phase AC induction motors it supplied to continue _______________ when any one of the ungrounded phase conductors became inadvertently grounded (ground-fault condition).
A) running
B) operation
C) none of the answers
D) shut down
Show Answer
Answer:A
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