Thanks.
Yes we have independent cooling control with the OzCooling circuit, (breadboard as its a simple PCB) its in the book, It ramps up and down gently following the temp rises and falls and just ticks over if required.
The J3 & J4 are just a feed 230vAC from the Secondary cables connection at the Separate EMC filter input, so the cables are not big on the board. I use 10mm/2, straining our control card is a no no. I hate mixing AC stuff with DC stuff. These details are in the Supplement.
These New boards were not actually designed for the PJ, but it would fit, infact after purchasing a 10000w PJ, it was cheap, and looking inside, I stripped it for spares as it was not worth the hassel getting the PJ to really work.
For running a domestic home 48v to 230vac is the norm as it saves on huge cable connections etc, plus most commercial DC controllers have 48vdc. So sorry this baby is strictly for my 48vdc system, but I feel sure it could be adapted.
TBH once I looked at the PJ toroids and the space/clearance inside the case, the PJ toroids are woefully inadequate at handling continuous Power as they state. But the PJ 15kW 48vdc Power Board was/is pretty good, sadly PJ stocking and selling these good Boards seems to be very ad hock. So hence us making our own boards as well. We are no longer dependant on anyone..........
I ordered 2 silicone Iron wound cores from the UK core winders. 'Frackers' my hero, wound his own cores, so that's possible also. Stuck them together to give me 190mm OD x 120mm high with a 90mm centre hole. Wound them with 118 turns 4off/in hand 1.8mm diameter copper wire and 50mm/2 14 turns for the primary. Total finished weight about 28kgs . All in the book including the tech stuff.
This will run 6kW loads no issues and this OzInverter replaced a SMA 6 Sunny Island that would not do the work. Been running beautifully Now for over 5 months.
My place here, Normandy, rural rolling countryside, will be shortly a Community project with Holiday accommodation 3 Gites, (self sufficient Passive House standard cottages), Lecture Theatre, workshops, swimming pool etc. There is just me doing the works, so the last 10 years has been very busy. All this means I need a real 15kW Inverter, so hence me building the BigOzInverter, its toroid core is 230mm OD x 140mm high with a 100mm centre hole. The core on its own weighs about 39kgs.
As these Inverters are working I also like to have replacement parts ready for direct swapping, that's why I want spare boards.
The project turned into a book, as my 3 young boys always want to know how stuff works, at least when I am gone they get a manual. And the book is also part of our philosophy of self empowerment, assisting and passing knowledge to others.
However..... Its all Oztules work really, he helped me when the commercial machines just could not do it..... In my book he's the kind of guy that deserves a Medal, as he just continues to push that boat. And boy! this Planet needs more folk like him!
Whoops,! sorry got the incorrect OD....... my New BigOzInverter toroid core is amended, it is actually 230mm diameter x 140mm high with a 100 mm diameter centre hole.
