Question

How is a 3 phase connection better than a single phase connection?

Answer 1

Most of us know that in the world of electricity, current through the wires carry electricity that light our bulbs and run our appliances. The type of current that is supplied from electricity grid is Alternating Current (or AC). In a single-phase supply, a single alternating current in supplied through a single wire, whereas in a three-phase system 3 wires carry alternating current with a definite time offset in between the voltage waves.

In India a single-phase supply is a 230V supply through two wires and 3-phase supply is 415 V supply through 4 wires and in the house the line can be divided to give 230V at individual point. The basic difference between the two is that a three-phase connection can handle heavy load while a single-phase cannot.