billduck wrote: ↑
Wed Jun 17, 2020 6:58 am
This is good information. Let me deconstruct it. Everyone understands that a 240 volt service is 2 each of a 120 volt sine wave that are phased 180 degrees apart. Are you saying that the voltage from a 120 volt recepticle on the pure sine wave inverter is kinda the same. That is, it is 2 sine waves at 60 volts separated by 180 degrees, time wise?
The inverter I am using is from reliable inverters - a pure sine wave inverter. Do not want to let the smoke out.
The inverter output is 120 volts RMS sine wave but it is either completely floating with respect to ground (which means bonding the neutral to ground would create a grounded neutral system and allow charging) or it is two 60-volt sine waves as you describe which yields 120 volts with both neutral and line conductors offset from ground by 60 volts. I suggest you ask the manufacturer of the inverter to find out if its output is floating with respect to ground. If it is floating (like both of my inverter-type generators), then you can create grounding plugs as I described earlier to ground the neutral and allow car charging. If the inverter output is not floating, you could get an isolation transformer to create a separately-derived system and ground the neutral on the output side of the transformer.
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