- Joined
- Feb 16, 2014
- Messages
- 26
<snip>
As far as amp draw goes, Lets say that the amp draw from a machine is 30 amps, It'll be roughly the same whether its single phase or 3 phase. The only difference is that in 1 phase circuit the amperage gets divided between 2 legs (15 amps per leg),and on a 3 phase circuit the amp draw would be divided up by 3 legs (10 amps per leg), <snip>
Marcel
Current is a series circuit is equal. The 220V circuit must supply 30 amps, the current in each 'leg' (see * below) is 30 amps. The neutral is irrelevant in this example as the voltage is measured between L1 and L2 of the mains circuit, but the equivalent would be two 110v circuits in series, in each of which 30amps would flow and would be 220V at 30 amps when series connected.
paul
*(the 'legs' represent L1 and L2, which are the secodary winding leads of the distribuition trnasfomer that sits on the ground or or your pole)