Electrical: DC AC Conversions - Efficiency
I am an Electricity Novice: Assumptions: Boon-docker - does not use shore power, uses Solar Panels and Batteries, or generator. Refrigerator does not have propane option...electric only, AC or DC. ...
Forum Discussion
Dragged out my Kill-A-Watts results for my PF- corrected 100 amp DC charger, and for my non-PF corrected 75 amp DC charger. Being run with a Honda EU3000is doing 126.8V AC unloaded. (Loaded voltages shown in results)
A. 122.7V, 15.57A, 1910VA, PF 0.97--DC output 102A, 14.8V (Batt 14.44 and rising)
B. 123.8V, 13.64A, 1693VA, PF 0.73--DC output 75.0A, 14.8v (Batt 14.08 and rising)
You can see the lower output (75 vs 102) means less of a voltage sag at the input.
You can see the non-PF corrected 75 amper wanted 13.64A input which is more than the 13.3A Honda 2000. BUT if the 75 amper were PF corrected, it would not want so much input, so IMO the Honda 2000 could run a 75 amper or so if it were PF corrected--such as that Magnum, dialled down so it would be under the Honda's 13.3
BTW I got away with that 15.57 input on the Kill-A-Watt, which can fry at over 15A. Don't do that! You might not be so lucky. :)
Note 125/102 x 1910VA = 2340VA /18 amps = 130V, so that 18A business for 125 amps output doesn't quite work. Needs a bit more input or matches with less output, more like 118a. Whatever, don't worry about it. VA gets weirder the more you poke at it. :(
A. 122.7V, 15.57A, 1910VA, PF 0.97--DC output 102A, 14.8V (Batt 14.44 and rising)
B. 123.8V, 13.64A, 1693VA, PF 0.73--DC output 75.0A, 14.8v (Batt 14.08 and rising)
You can see the lower output (75 vs 102) means less of a voltage sag at the input.
You can see the non-PF corrected 75 amper wanted 13.64A input which is more than the 13.3A Honda 2000. BUT if the 75 amper were PF corrected, it would not want so much input, so IMO the Honda 2000 could run a 75 amper or so if it were PF corrected--such as that Magnum, dialled down so it would be under the Honda's 13.3
BTW I got away with that 15.57 input on the Kill-A-Watt, which can fry at over 15A. Don't do that! You might not be so lucky. :)
Note 125/102 x 1910VA = 2340VA /18 amps = 130V, so that 18A business for 125 amps output doesn't quite work. Needs a bit more input or matches with less output, more like 118a. Whatever, don't worry about it. VA gets weirder the more you poke at it. :(
