Bozo’s Balancing Act
“Know the light, but keep the shadow.”—Tao saying
Three-phase power distribution systems are very common around the world for a couple of reasons; they save money, and…I forget the other reasons.
Three-phase distribution saves money because it takes less copper to transmit the same amount of power with a three-phase system than with a single-phase system. In fact, it takes about 25 percent less copper to transmit the same amount of power with a three-phase three-wire delta system as with a single-phase three-wire system because the conductors need only be half the cross sectional area. And with a three-phase four-wire system it takes even less copper — about 66 percent less than with a single-phase three-wire system.
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