How do you convert 1 phase 240 volt power to 3 phase 480 volt power?

Answer 1

Any two legs of the 480V will give you 240 V Single phase.

I apologize for the wrong information here. A friendly member reminded me of the correct answer.

I stand corrected. Any two legs would be at 480 single phase. One leg to neutral will give you 277volts not 240 (408/1.73). You would need to install a step down transformer on the 277v line to achieve 240v.

Answer 2

The only way to change 480 volts to 240 volts is with a transformer. A wye connection of a 480 volt three phase system can get the voltage down to 277 volts, but it is not recommended to interchange these two voltages and the equipment that they operate on.

Answer 3

With a step-up transformer trio or motor-generator set.

Answer 4

You will need to use a transformer. This is because the phase voltage for a three-phase system with a line voltage of 480 V is 277 V.

Answer 5

You don't. These are two different types of electrical systems and the generation of these voltages requires different types of equipment when compared to each other.