How Big a Gen to Run a Converter? Some Info.
EDIT: some of my earlier posts in this thread have the wrong idea. As more info came in later, things got less confusing--sort of! :) --------------------- Another look at this topic. It is n...
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More info on that: The PowerMax 75 amper is not actually PF corrected, but the 100 amper is. But the 75 amper does have a very high efficiency, so it can have its 15a plug and UL rating accordingly.
Meanwhile, it seems we are now at the point where we can say for sure ??? Egads what a nightmare! :) , that you are supposed to apply the PF to the INPUT watts to get the VA, not the output watts.
The Kill-A Watt measures the actual SUPPLIED volts and amps so that gives you the supplied VA from the power source, also a KW readout.
Somehow, it notes the USED input (as opposed to the supplied input) and gives that in Watts (any diff is due to waveform matching which can make the Used less than the Supplied and that is where the PF comes from)
The Efficiency of the load comes After That with output watts /input watts giving the efficiency (heat loss, conversion loss etc)
So the latest story, :) is--- to find out how much gen you need in VA, take the output watts (DC voltage x amps), apply an efficiency to get the higher input watts number, apply the PF to that, and now at last, you get the required VA from the generator.
I hope that is right, or else send in the men in white suits with their butterfly net and take me away! :(
Meanwhile, it seems we are now at the point where we can say for sure ??? Egads what a nightmare! :) , that you are supposed to apply the PF to the INPUT watts to get the VA, not the output watts.
The Kill-A Watt measures the actual SUPPLIED volts and amps so that gives you the supplied VA from the power source, also a KW readout.
Somehow, it notes the USED input (as opposed to the supplied input) and gives that in Watts (any diff is due to waveform matching which can make the Used less than the Supplied and that is where the PF comes from)
The Efficiency of the load comes After That with output watts /input watts giving the efficiency (heat loss, conversion loss etc)
So the latest story, :) is--- to find out how much gen you need in VA, take the output watts (DC voltage x amps), apply an efficiency to get the higher input watts number, apply the PF to that, and now at last, you get the required VA from the generator.
I hope that is right, or else send in the men in white suits with their butterfly net and take me away! :(
