Hard to tell, but you should look the nameplate of the motor it can run on 4 nominal voltages. If you said 220/440 than it shuld have 127V (start 2), 220V (run2), 254V(start), 440V (run). With a VFD the motor shall be connected as LOWER/RUN 2 delta. EDIT: Some mistakes: If you said 220/440 than it shuld have 380V (start 2), 220V (run2), 760V With a very simple logic for a motor load - more is voltage more is the current. More is frequency less is the current. Perhaps you don't need to change any thing if the machine is made of motors and transformers, (no heaters and bulbs etc), and this machine would work fine on 480V 60Hz,in case it has bulbs and heaters etc you can separate out them and heaters run with separate line coming NOTE: If you need assistance with circuit protection devices such as fuses or breakers, or wire sizing, please consult a licensed electrical contractor or electrician in your area who will be familiar with state and local codes. All information obtained while using this calculator should be confirmed by a qualified electrical contractor or P = V 2 /R. Here P is power in watts, V is voltage in volts and R is electrical resistance in units called ohms. You can see that negative voltages contribute to power because squaring a negative number yields a positive value. The total power in a three-phase system is just the sum of the power of the three individual power values of each phase. Basics. Frequency Converter, also named as AC power source, is a electronic device to convert fixed frequency (50 hertz, 60 hertz), fixed voltage (110V, 120V, 208V, 220V, 230V, 240V, 380V, 400V, 440V, 480V etc) to variable frequency (50Hz/60Hz or 400 Hz adjustable) and variable voltage (adjustable) with pure sine wave output to compatible with In this tutorial, 277V and 480V, 1-phase and 3-phase circuits, we have used the NEC + general practice wiring color codes as follows. Brown = Hot 1 or Line 1. Orange = Hot 2 or Line 2. Yellow = Hot 3 or Line 3. White = Neutral Wire. Green or Green with Yellow stripes = Bare Conductor as Ground wire. If you only have single phase power at your house,you can still connect a three phase motor with this tutorial. 208V Single Phase and 208V 3 Phase power are easy to use, but hard to understand. If you want a simple understanding but aren’t electrically minded, start with a simple analogy you can build on. I like the bicycle analogy. Bicycle Analogy . A tandem bicycle has two people providing power with four legs (pedals). 5yeDsm.