Which
of the following distribution systems are preferred for good efficiency and
high economy?
3-phase, 4 wire
Single
phase, two wire
2-phase, 3 wire
3-phase, 3 wire
3-phase, 4 wire
Although
electrical power can be transmitted and delivered by A.C. and D.C., but in
practice 3-
, 3 wire system is
universally adopted for transmission of bulk power. It also saved the conductor
material. In transmission line we use 3, 3 wire system but in distribution system tapping is
necessary so we compromise our supposition and use 3-, 3 , 4 wire system.
Hence,
the correct option is (A).
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