why 3 phase power is more efficient?

why 3 phase power is more efficient?
three - phase power, three - phase power supplies are more efficient. A three - phase power supply can transmit three times as much power as a single- phase power supply, while only needing one additional wire (that is, three wires instead of two).
Full answer in: www.fluke.com
Do you pay more for 3 phase power?
3 - phase A/C is obviously connected to all 3 phases, and is marginally more efficient than a single phase unit of the same output. But otherwise, agree with everyone – you are billed on kWh consumed not the type of wiring. The only additional cost of 3 phase is the initial connection – more cores = more cost. Dec 4, 2014
Full answer in: forums.whirlpool.net.au
Is 3 phase power cheaper than single phase?
It is not normally cheaper to run kilns on three phase power vs single phase power. ... The main reason that three phase is used is that the size of the wires and circuit breaker or fused disconnect is dramatically smaller than with single phase for the same amount of KW. This is particularly important for larger kilns.
Full answer in: hotkilns.com
What are the advantages of 3 phase system over single phase system?
Power to weight ratio of 3 -ø alternator is high as compared to 1 -ø alternator. ...
For electric power transmission and distribution of same amount of power, the requirement of conductor material is less in 3 -ø system as compare to 1 -ø system.
Full answer in: www.electrical4u.com
Why 3 phase power is used why not 6 or 12?
Also analyzing for higher phases, in multiples of 3 i.e. 6, 12 or higher lines, power transfer curve would be dropping e.g. 6 phases would add twice power than three phases but 12 phases do not add power double than that of 6 phases. Also higher phases would cause more constrain at grid.
Full answer in: www.youth4work.com