It depends on the voltage source. watts = voltage * voltage / resistance and amps = voltage / resistance example 1: To produce 600W from a 120V source, you need a resistor of size 120V*120V/600W = 24 Ohm. This would pull 120V/24 Ohm = 5 amps. example 2: To produce 600W from a 240V source, you need a resistor of size 240V*240V/600W = 96 Ohm. This would pull 240V/96 Ohm = 2.5 amps.
Wire size depends on amps. Use #10 for 30a. #8 for 40 or 50a. #6 for 60a.
Minimally 30 AMPS
Generators are rated in watts or kilowatts. The formula for watts is W = Amps x Volts. To size a generator for the welder the voltage of the machine must be stated.
The wire size depends on the amperage, not the voltage. The fact that the welder runs on 440 volts does not affect the wire size! You need to ask this question instead: What size wire do you need for a three phase welder on an eight foot run if the nameplate amps are 45A?
0.583333333333
yes, 31watt divide 240v equals to 0.13amps.
#6 You can use number 6 copper if you wish,you will definitely not overload it or you can figure the wire size by the duty cycle. If your welder has a 100 duty cycle rating use wire good for 52 amps or a number 6. If the duty cycle is 90, multiply the amp draw by .95 x 52 or 49.4 amps or a number 8 wire. These are a few more of the duty cycle multipliers 80 duty cycle(.89) 70 duty cycle(.84) 60 duty cycle(.78)Duty cycle takes in to account that most welders do not weld continously at maximum welder output all the time.
Presuming single phase and 1500 rpm. Normal running current would nearly 10 Amps but varies considerably. A real cheap one running at 3000/3600 rpm could exceed 12 amps. At 240 volt, all should be run off 15 Amp line.
The equation that needs to be used is I = W/E. Amps = Watts/Volts. Amps = 500/240 = 2.08 amps.
The V stands for volts and A is amps. If for example you have a 12kVA device and are running off a voltage of 120 volts then Amps = 12000/120 = 100. You then use the calculated amps in a wire size table to get the correct size.
The basic formula for the Voltage, Current, Power relationship is P=I*E. To find one when the other two are known, simply fill in the two you know and solve. In this case P=1000W and Voltage = 240V (It is important that you pay attention to the unit definer here, if it were 240 mV, you would have Voltage = .240V and so on). 1000W = I * 240V I = 1000W/240V I = 4.17A