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You do realize that you pay for electricity based upon KW/Hour, and that a Miller 135 at full nut draws [email]20amps@120[/email] volts (2400 watts) and a Miller 175 at full nut draws [email]20amps@240[/email] volts (4800 watts).


You say it yourself, though. Full nut of the 175 is twice the wattage of the 135 -- hence twice the heat. So to get the same 2400 watts out of the 175 I'm only drawing 10 amps. Also, since I am only drawing 10 amps, my duty cycle has also increased substantially over the 135 giving all she's got.



GMAW is a Constant Voltage process, so P=V^2/R hence the power consumption curve is not linear like you posit.

Notice how it takes 2400 watts to produce the 135's full output and 4800 watts to produce the 175's full output? Following your flawed logic if I double the input power from 2400 to 4800 watts the output should also double to 270 amps.

From my post above:

"At the same power output of lets say 100amps the machines difference in power consumption is negligible. The only time you are going to see a real difference in power consumption is when comparing a Inverter machine to a traditional Transformer machine, I.E a Dynasty 300 vs. Synchrowave 250."



Last edited by jasonmt; 05/24/04 08:20 PM.