- #1
Jupiter'sTwin
- 9
- 0
Where an AC induction motor can be wired for 120v or 240v, will the total amperage be the same no matter how you wire it?
The way I understand it is, since the 120V wiring has 1 conductor it is carrying all the amps. I realize the neutral plays a part but it does not have amperage flow. The 240v circuit has half the amperage flow per conductor, but since there's two conductors, isn't the total amps the same for the motor?
If this is not true then I don't understand a lot of things. Even if it is true I still do not understand a lot of things!
I'm just trying to figure out how a motor that can run on 120 or 240 can cost essentially the same amount of money to run, and the 240v wiring arrangement is drawing half the amps. I do understand that increasing volts decreases amps all things being equal, but when you wire a 120/240 motor for 240, it changes the way the internal windings are wired so it is not equal. How confused am I on this?
The way I understand it is, since the 120V wiring has 1 conductor it is carrying all the amps. I realize the neutral plays a part but it does not have amperage flow. The 240v circuit has half the amperage flow per conductor, but since there's two conductors, isn't the total amps the same for the motor?
If this is not true then I don't understand a lot of things. Even if it is true I still do not understand a lot of things!
I'm just trying to figure out how a motor that can run on 120 or 240 can cost essentially the same amount of money to run, and the 240v wiring arrangement is drawing half the amps. I do understand that increasing volts decreases amps all things being equal, but when you wire a 120/240 motor for 240, it changes the way the internal windings are wired so it is not equal. How confused am I on this?