Which
of the following is not the distribution system normally used
3
phase -4 wire
3 phase -3 wire
1
phase -3 wire
I phase -4 wire
I phase -4 wire
Power
can be distributed by :
1.
3 phase - 3 wire
2.
3 phase - 4 wire
3. 1-
wire (where third wire
is the earth wire and first two wires are phase).
Hence,
the correct option is (D).
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