I think you said it well, about 5 years ago I tried to charge a car from an off-grid system. I did not record my events but the inverter had twice the power of the level two charger, yet the inverter would get hot and trip out. I was told a ferroresonant transformer may help, and it might be different with different cars. However, I was warned the ferroresonant was to stop input wave problems from arriving at the output not to prevent the output wave problems showing up on the input. The off-grid customer gave up.
On Sun, Jun 7, 2020 at 6:36 AM Hilton Dier III <hiltond...@gmail.com> wrote: > The issue with EV chargers is that they create a lot of reactive power. > Think of it as "slosh" in the waveform. That means that charging at 2,000 > watts sloshes a lot more than 2kW through the cable, plug, outlet, and from > the inverter. If you've got a reasonably good sinewave inverter the charger > will like it fine. However, the inverter might not like the charger if you > cut things too close. Make sure to have a lot of top end left in your > inverter. Always use a transformer based inverter. The SW series has a big > chunk of metal in it, so that's good. At 120V the Bolt will only draw 1440 > watts max. > > An aftermarket Bolt 240V charger can draw up to 32 amps. That's 7.7 kW, so > too big for an SW. Treat it more like 40 amps. The OEM 120/240 EVSE (smart > charging cord) that comes with the car can draw 8 or 12 amps at 120V or 12 > at 240V. Assume that the 8 amps is really 12 and the 12 is really 15 or a > bit more. I have seen 15 amp plugs and outlets with the hot prong melting > plastic around it. The plug on the OEM EVSE is 20A rated but make sure your > outlet is as well. > > -- > Hilton Dier III > Missisquoi River Hydro > Renewable Energy Design > > _______________________________________________ > List sponsored by Redwood Alliance > > List Address: RE-wrenches@lists.re-wrenches.org > > Change listserver email address & settings: > http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org > > List-Archive: > http://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/maillist.html > > List rules & etiquette: > www.re-wrenches.org/etiquette.htm > > Check out or update participant bios: > www.members.re-wrenches.org > >
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