3 phase system in house is more cheaper than single phase system in terms of current consumption. is it true?

how does tht work...3 phase system in house is more cheaper than single phase system in terms of current consumption. is it true?
Yep, it would be more efficient than single phase. But not practical for home purposes.





Nikola Tesla invented our AC polyphase electrical system, as well as motors that make use of it. His motors don't actually run directly on ';current'; or even ';voltage'; in the sense that DC motors do --- they merely chase oscillating currents in the AC system. It's really much cleaner and more efficient . You probably have these Tesla ';inductive'; motors around the house -- in your washing machine, dryer, swamp cooler. They last a long time. Since they're small motors with low output requirements, single-phase is usually sufficient. Big industrial motors can make use of an added phase of oscillation, so industrial areas are usually wired to handle the extra power line.





A really great intro to how the grid is wired to your house, as well as a ton of fun electricity stuff can be found at:


http://amasci.com/ele-edu.html





Great article in there about why various plugs (polarized, grounded, etc.) have been designed. Great site for kids, too...3 phase system in house is more cheaper than single phase system in terms of current consumption. is it true?
3 phase is only for industrial equipment. It would be very expensive to run 3 phase into your house. Most household appliances run off of single.
Nope. Everything you have is made for single phase. (really dual phase, but everybody calls it single just to confuse things) You can use two of the three phases to run your stuff, but the voltages will be off, and you won't have a neutral so you could electrocute yourself. Since you had to ask this question, it's a pretty good bet you shouldn't be fooling with stuff that can kill you.
if your running industrial motors, but it is expensive to have three phase run into your house and regular appliances would only run on one of the phases any how.
Power consumption would be about the same.It would only be cheaper if electricity charges is cheaper for 3 phase system.