danrjones wrote: ↑
Tue Oct 01, 2019 6:14 am
So what is in the enclosure - batteries?
I believe it's the "rectifier" unit. Some details in this post about an Australian installation:
https://www.drivezero.com.au/charging/w ... g-station/
BTW, the Maverick
solar panel system is interesting as well.
My guess is that the "rectifier" unit contains three boost converters (one for each phase) that provides the 1000 VDC needed for the actual chargers (which would be buck converters). I'd say the thee large orange things at the bottom are the three boost inductors. Though they seem to be 50 Hz inductors (they would be 60 Hz in North America, of course). I suppose it could be a mains frequency three-phase transformer.
I further guess that these aren't installed yet; they're caged merely to prevent some cowboy from stealing them and selling them for scrap copper. They'd have to be enterprising cowboys to lift those things, but still...
I was going to say that the ABB two box system makes the Tritium ultra fast chargers
look very compact in comparison (also 350 kW, with some models higher power than that). But on chasing up a link, it looks like they might also have a separate box (perhaps a bit smaller, it's hard to tell from the promotional photos) that lives behind the scenes. Who'd have thought it - a measly 350 kW power converter needs all that hardware?
[ Edit: indeed, the Tritium 350 kW chargers also have a separate "power unit". PDF brochure here
. Also see the image below. ]
I don't see a lot of Tritium fast or ultra fast chargers in the US, even though they have a manufacturing facility in Torrance, CA (headquarters is in Brisbane, Australia; fast chargers are one of our very few high tech exports).
PS - the inability to insert UTF-8 characters (e.g. for thin no-break spaces) on this forum is rather irritating.
2012 Leaf with new battery May 2019. New to me June 2019.