probaby get flamed for the concept of floating the battery bank instead
Naa, but you have to keep in mind that a 120/0/120 system isn't 'compatible' with a 60/0/60 system, intrinsically.
the 60-0-60 was just what it looks like if you choose the negative battery lead as the metered reference,
they are still 0-120 units if you loose that reference point and use the neutral out instead,
so henceforth when driven with a phase reversal interface box they are capable of being 120-0-120 networked.
What would be the second master on the second (out of) phase L2 would be set to slave instead,
and the "Turn on" signal mimicked to that first unit of th second phase to keep it on.
Again, this seems plausable, but it truely depands on how the master is communicating with It's slaves,
but I have also read on the sites I found these on they can be stacked up to ten, so wow.
At one a month, on the second month you have a basic 2500 watt starter kit,
and each sucessive pair of months and additional 2500 watts to the whole deal.
What I dare ask is wrong with that? in twenty months you would have amassed a dual phase 25KW network,
and if each unit is tied through It's own breaker to the panel buss, one unit can fail safely
without taking out the others or leaving you 100% down and in the dark.
You've got your work cut out for you if you're going to make these things NEC 'approvable'.
Not my intention, but the end product when modified would sure be a whole lot safer,
and nearer to what those rules require for a safe installation for sure, right ?
And even if you free up the pseudo-ground so that you can tie 'neutral' to it, what about the other phase?
Are you going to drive two of them out-of-phase/in-tandem for 120/0/120 operation with a true ground?
Plainly put, yes
They already have most of the required implementation in place is my belief, but I won't know until I tear one down.
They have the ability for one unit be master, and use both that master's clock and phase as reference.
And if what I read is (somewhere) correct, the ability to keep the additional units powered down until needed.
an external interface box at the first master would be able to reference the clock and It's phase
to be phase-reversed for the second bank to use, but again, I need to see what is in place first.
Don't get me wrong, I'm not exactly knocking the concepts, but it seems like a lot of work for little return... ?
Maybe I'm just being to optimistic on this concept, who knows...
And why do you need a fried one? You just have to 'fix' it to prove you're not crazy anyway.
Heheh, it wouldn't be the first time a thought like that was the starting point concerning me,
but what is just as amusing to me is the face after I have done what was thought improbable.
I want a blown one to track down the amount of damage sustained, and because it would be free.
Minus my paying for the shipping to me that is of course...
These things are going for like 100 bucks on ebay based on a link I saw somewhere around here not long ago.
The reserve for the eBay guy is currently between $200 And $239.99, I haven't watched them enough to pin the exact figure down yet. If you come across that link for $100 bucks sir, I'll buy one a month until I have all four needed for a test bed !
If you're convinced it's a relatively easy task, scoop up a couple of 'em and tie them together.
One thing is for sure, you come up with a cheap and easy solution to convert them over to a groundable set capable of being wired as 2 phase 120/0/120 to the main breaker of a distribution panel, you'll get the attention of a whole lot of individuals on here, no doubt.
I'm 51, and I can say with clarity that nothing is as easy as it seems, especially electronics rework.
I will share all at every step, but this is just a retired tech's project for me to do, no more.
Thanks for your questions, I hope I answer more when I get my hands on one of these.
This week is kind of in and out mostly, I hope to have a few (full) days home next week
to havel Mr eBay return a call about getting one or more blown units from him.