The electric power from primary distribution line is delivered to distribution substations by using?
A. 1 phase wire
B. 3 phase, 3 wire
C. 3 phase, 4 wire
D. All of these
Answer:C
The electric power from primary distribution line is delivered to distribution substations by using?
A. 1 phase wire B. 3 phase, 3 wire C. 3 phase, 4 wire D. All of these