I did get the Chargeverter control box done. I used the 100A panel I originally installed on the battery/inverter box. Pulled the 3/4" welder circuit conduit out, used some of the wire for AC input to the inverters and replaced it with 1" conduit with 4 AWG to the 100A breaker panel. 60A breaker goes to the welder outlet from this box now and the 30A goes to the contactor on the left. I had run 2" conduit from the shop to the house and pulled 4 10AWG wires thru it (conduit fill was not a problem) plus ground wire. One pair is to the Chargeverter in the house, the other pair comes from the house to the contactor on the right which is connected to the 30A Chargeverter outlet. The reason for the 2" is I could always pull out the 10AWG and run 4/0 cable.
Contactor control is thru Shelly Smart Plugs. I've had some trouble with the wireless on the house Shelly Smart Plug and will be changing it out to see if it is just defective. Cords are recycled microwave cords that were laying around.
I mounted the Chargeverter to the wall with some unistrut attached to the concrete and I did tie up the cord later. Cables were ran into the charge controller output junction box. I had one space left on the busbars and just used a cable gland which the Chargeverter cable lug fit thru on the side of the box. I did get lucky with the cable to the Lynx busbar, it was 1/0 and large enough to carry the amps from both the Chargeverter and both charge controllers.
I saw as high as 12.5Kw going into the batteries, loads were light as the wife was gone. I did set the Chargeverter as high as 75A. I wanted to get to full SOC in order to swap out the 16 cells that have been troublesome on balance. No sun the day before and started at around 8:30 AM and was to about 90% by noon. I slowed the Chargeverter down to about 30A and wouldn't you know it? It clouded over.
This was almost like adding another array, charge controller and panels. As I wasn't in the shop all day, I didn't care what SOC the shop system would end up at for the day as it could get recharged the following day.
The Chargeverter didn't care about the voltage drop, I never measured the voltage drop but I'm sure at 17A and 240 feet plus another 20 feet there has to be some voltage drop. Using a VD calculator, 17A at 260 feet with 10AWG comes to almost a 3.9% voltage drop. I wondered how well this would work but one never knows unless you try. I was impressed.
I'm not certain if I will add more array for the house or shop after setting this up and using it. I might only add the 7 vertical panels on the back shed which will bring total PV to just under 20 Kw. I won't be in the shop as often on weekends (I have some fishing to catch up on) and with the 48 more cells arriving this next week I might have enough PV plus battery to get by. I can always take a nice day off during the week and go fishing to let the battery banks catch up.
I'll put together a video sometime but it most likely will have some background noise.