Mell Can you run a 220V motor on 208V?
Most devices designed for 220 will run on 208 and in shops all over the place this is commonly done. Purely resistive components (like heaters) will run at a slightly lower power. So, your machine will work, but will take longer to come up to temperature.
Will a 230V 3 phase motor run on 208V?
Generally, a motor with a nameplate rating of 3ph 230 volts can operate as low as 3ph 207 (+/-10%) system volts. Even though the system voltage of 3 phase 208 is within the -10% rating of the three phase 230 v motor, the 208 is allowed to vary to -10% or 187 volts — and the motor will not work at that level.
Is 220 volt the same as 208?
“220” and “240” are the same thing. “220” is what the unqualified use to describe 240 volt circuits. 208 can only be obtained from a 3-phase wye system. 208 is from a 3 phase system and 240 can be from a single phase or a 3 phase system.
How do you get 208?
The formula is volts times the square root of 3, which happens to be rounded off to 1.732. For 2 lines each carrying 120 volts, the calculation for this is 120 volts times 1.732, and the result is rounded up to 208 volts. That’s why we call it a 208 volt three phase circuit, or a 208 volt 3 phase line.
Is the 208 volts and the 220 volts the same?
“220” and “240” are the same thing. “220” is what the unqualified use to describe 240 volt circuits. 208 can only be obtained from a 3-phase wye system. 208 is from a 3 phase system and 240 can be from a single phase or a 3 phase system. Correspondingly, can I use 208v instead of 240v?
Can a 3phase motor run on 208 volts?
However, if the operating conditions are a heavy load at or near nameplate full load rating, operation at 3-phase 208 volts could result in higher operating amperes, resulting in higher operating temperature. Higher operating temperature will result in a shorter life expectancy.
Can a 220 volt motor be converted to single phase?
The motor controller brochure seems to indicate that it can operate on 220 single-phase, but the manual indicates that a different model is required for single-phase. If there are other motors on the machine, they may also require three-phase power. It does not seem likely that the machine can be converted to use 220 volts single-phase.
Which is more common 208 or 240 three phase?
If either is available, there are no hard rules… but IMO 208Y/120 more common to commercial, 240/120 3? to manufacturing. I would suggest two things first off. (1) See if you can take a look at or get cut sheets on the customers equipment. Folks who don’t work in the field often use “220” as a catch-all, not knowing the existence of 208 or 240.