4 ms·
It's not clear what he meant (because this part doesn't really have anything to do with 3-phase), but: Most houses in the US have 240V service for large loads
by labcomputer 6y ago
It's not clear what he meant (because this part doesn't really have anything to do with 3-phase), but:
Most houses in the US have 240V service for large loads like A/C, ovens, stoves, dryers, EV chargers, etc. The way you get 240V (in the US) is that you take a single phase, and apply it to a transformer. The transformer's secondary has a grounded center tap, so you get +/- 120V, 180 degrees out of phase (this is called "split phase").