Can current be split over 2 wires of smaller gauge?
I have a power inverter that draws ~23A at 12VDC from my car battery, and it steps it up to 120VAC at 300W. I need to wire it from my battery all the way to the back of my truck, it's a Bronco II so it's not incredibly long. Let's say I need 15 feet of wire. I don't have 10AWG wire which is required to pull such a current, but I do have enough 12AWG wire to run the route twice. Is it possible to split the current across the 2 wires if I connect them in parallel?
Of course, but in practice this is a bad idea - if you lose connection on one of the wires for whatever reason, the remaining smaller gauge wire may present a fire hazard.
Converting amps from 12vdc to 120vac?
i understand that wattage = amps * voltage
so if i were to buy an inverter to change 12vdc to 120vac how would i measure how many amps it would be at 120vac?
say i have a generator at 12vdc 250amps
so that would be 3000watts
would i just divide 3000watts by 120volts, which would be 25 amps? or?
pretty much you are right. Do not forget to multiply if with efficiency.
so for 3kW @12V you need 125A,
With efficiency 90% on output you have 2.7kw@120vdc which gives max load of 22.5 A
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