question. if your only supplying a transformer with a 100amp 480v wire is it possible to get 200amps 208v on the secondary of that transformer?
question. if your only supplying a transformer with a 100amp 480v wire is it possible to get 200amps 208v on the secondary of that transformer?
I'd say yes.
Watts in equals watts out. Assuming the proper wire sizes on the primary and secondary, it's just simple algebra:
480V * 100A = xA * 208V 48000W = xA * 208V 48000W / 208V = xA 230.77A
You need to factor in the loss in the transformer. Many are around 95 to 98 % efficent so maybe a 5 % loss or less. You still would have about 215 or more amps to use.
replying to terry, Hank Jochade wrote: Well if one leg is +120 and the other leg is -120 then they ARE 180 degrees out of phase
replying to Hank Jochade, MadMax wrote: Lol
replying to usenet-659f31de7f953aeb, James wrote: jeez you're helpful. Dont' answer if you're going to be condescending.
The answer is truly true power volts times current equals watts if you have 240v 200A main you have 48,000 total watts of useable power. Start subtracting circuits 120v 20A circuit is 2,400 watts when watts equal zero it’s lights out on the main breaker but this rarely happens as you usually don’t max every circuit when they’re running
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