3 phase input power calculation

M
Because:
1. Most appliances are manufactured as single phase (cheaper to manufacture - for the manufacturer).
2. Most homes are wired internally as single phase (sockets).
3. Power hungry devices - notably high capacity air conditioners - are already available as 3-phase machines.

A mental exercise for you - which appliances would you prefer to be 3-phase (including the burden of rewiring your house in order to accommodate them where you want to use them)?

Meir
 
hi. The power factor is pretty much telling you how much of the power the motors acually use is in "watts" or "usefull energy". so the higher the PF, the more effecient the motor is as far as "how much you're paying for the motor to run"
 
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