By the way, I have built following thing for my home:
Basically it is Type1 Charger, but you can connect it to 3phase or 1 phase socket. If it is 1-phase - it is typical 10A-13A charger (normal/boost mode) so you charge 2kW or 2.4 kW (boost). But if you connect it to 3phase (400V here) it will give you 3,6 kW (normal mode) or 4,6 kW (boost mode). It uses balanced load on all phases.
I have prepared also 6,6kW version, again balancing on 3 phases (10 A per phase in that case).
It is fully portable, with power meter, load (kWh charged) meter, voltage & current display.
So people with limitation of 16A per phase or so can charge with full speed if they only have 3 phase at home.
Please tell me countries, where such thing is a good idea.
Here in Poland we have 3phase in most houses, usually limited to 14,5 A (16 A fuse). So if I charge car (10A, 2 kW or so) i cannot use anything on that phase, that uses more than 1,5 kW or fuse will switch off current.
With my solution my Outlander PHEV charges with full speed of 3.6 kW, and my Wife's Leaf - 4,5 kW (7 A per phase).
Such charger is fully portable, it can be used as 1-phase 230V charger (10A normal mode, 13 A boost mode).
My problem here was, that we have same phase in garage, and dishwasher. So when I charge car (original charger, 10A 2,2 kW) and my Wife starts dishwasher, fuse switches off. With my new charger it is no problem (load per phase for Outlander, charging with full speed of 3,6 kW is 6A, so no problem at all)
I have prepared also prototype, that uses equal 10A load on 3 phases to have 30A for 6,6 kW charging of Type1 car (like Leaf).
Is that a good idea, such semi-fast charging at home, or any place, where 3 phases are available (even with 16A limit per phase, as my charger takes 10A per phase) ?
PS: Maybe we can start a separate thread to discuss that
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