GS 6K Inverter Shipping update.

Go ahead and send me 3 or 4 and I'll do the smoke test and write up a report. I'm really good at finding ways to loosen up the smoke... I'm so good at it, sometimes it happens when I'm not even trying!🔥🔥

11 hours ago, The Blind Wolf said:

Hmmmmm. well Sean going to have to config two of them at 24v and dasy chain them, I want him to push them before he sends it to me cause I will push them when I get them to check to see how they handle 😛  all I got to do is turn on my house heater, that uses 10k on its on, and then run the hot water to make the water heater kick on that will push it to 14k   *laughs*

Yeah, we'll need to test them in full config (though we only have a 24v power supply to test them with) before shipping, that way they hopefully can be out-of-the-box ready to wire up.  Have to admit I'm not sure how to indicate which one's which when you get 'em though...easy enough to see on the LCD when they're powered up, BUT...😎

UPDATE: Obviously, as we now have the inverters, it's up to us to get them configured, tested, programmed, etc. and then mailed out.

Sean & I are working to perfect a fix for the induced noise on the H_MOS side of the FET H-bridge...we know that once we get the 12kw working perfectly, that solution should also work wonders on the 6kw units, to make them the best they can be.  Unfortunately, this takes time...and we only discovered this issue a week or so back--and it takes time to order in parts.

Did some tests this morning, running a 24v GS inverter at 37vDC (equivalent: 55v for a 36v inverter, or 74vDC for a 48v inverter)...found that we may need to add another choke on the tranny wires.  Not noticeable at "normal" voltage ranges--but for customers wanting to run 48-49v on a 36v inverter, additional filtering becomes quite important.  Reduces no-load current back to what it is at the nominal voltage, cleans up the signals on the FETs, etc.

Hey, at least we can't blame anyone else for any delays 😉

Thank you all for your patience.

P.S. Ruined the control board in my house inverter this afternoon, so much for the 3,300 hours I'd accrued on it.  Was a stupid mistake: trying to make some minor changes to it without turning the DC breaker off (yes I turned the inverter off...!)  Accidentally shorted 55vDC from the batteries (on the heatsink) to a pin going directly to the CPU, instantly frying it.  Not a design fault, that was a stupid human fault 🥴

Well, if sean ever call me, He can put a ribbion on the master to indacate that its the master.

A Ribbon, and he need to make sure the master is set to 120v input for charging.  I can set the rest of the settings once I get them for my battery bank, I'm guessing you most likely almost got the firmware ready that I can update or connect to and all that?

17 minutes ago, The Blind Wolf said:

I'm guessing you most likely almost got the firmware ready that I can update or connect to and all that?

I wish programming was faster than that.  No, it's been a lot of work trying to sort out issues, get the MOSFET drive problem solved, debug and test other things, make my oscilloscope stink terribly (apparently it doesn't take too kindly to dirty AC input power!), etc.

But I definitely can make a "visually impaired setup mode", where you hold the rightmost button for 10 seconds or so...the unit beeps a couple of times, then auto creates a WiFi hotspot you can connect your phone to, and then access the config page that way.

16 minutes ago, Sid Genetry Solar said:

I wish programming was faster than that.  No, it's been a lot of work trying to sort out issues, get the MOSFET drive problem solved, debug and test other things, make my oscilloscope stink terribly (apparently it doesn't take too kindly to dirty AC input power!), etc.

But I definitely can make a "visually impaired setup mode", where you hold the rightmost button for 10 seconds or so...the unit beeps a couple of times, then auto creates a WiFi hotspot you can connect your phone to, and then access the config page that way.

Well, that what I mean, as far as that, didn't know if you had that setup yet or not before sean sends out mine.  Also, just was wondering, since I can't see if the inverter is on or off, is there any chance you can have it do like a test spin up of the fans when it is turned on to let me know it active?  Not sure if it do that or not.

2 minutes ago, The Blind Wolf said:

Also, just was wondering, since I can't see if the inverter is on or off, is there any chance you can have it do like a test spin up of the fans when it is turned on to let me know it active?  Not sure if it do that or not.

Already does, thank you very much 😉.  Technically a "fan test", but yes, it'll spin them all up for a few seconds at startup.  And our 250CFM fans resemble the sound of jet engines at full speed...no mistaking them.

We will see, I got a 120mm 12v Tornato fan that I bought back in the 90's, it was the highest CFM fan you coudl get for a computer at the time, its so strong, that it litterly hovers on the table, used two of them to hover a 12: 2x4 with two of them. 😛

Uhm, never mind, dang, 250cfm?  Wow, I just checked the one I was talking about is only 84.1cfm.  But, heck back in the late 90's that was crazy high and the dang thing was 54db loud, we had to use a fan controller to slow it down, and it would burn them out every month if you restricted the fan too much.

But, 250CFM, dang, is that the Delta Fan?  Makes me want to buy some and build a remote hover craft with them lol.

Yes, 250CFM.  These fans will blow themselves over, or blow any loose paper clear off your table.

If we got the fans in 12v size, they would run 4 amps continuous at full speed.

"48v" runs roughly 1 amp continuous at full speed.  Lab tested 252CFM, 7,586 RPM.

"24v" fans seem to be a just a hair slower, but still quite formidable.

Was gonna say, I was looking at computer fans, and none of them come close to that sort of speed 😉.  Don't have any DB numbers, but they aren't the quietest fans ;-).  Fortunately, they are under complete 0-100% PWM control via the WiFi board.

Yeah, the highest case fan I see right now is 110 cfm at 12v.  The Tornado used 1 amp I think it was 5600 rpm.  Either way.  So at 24v that means that fan is going to use 2 amps at full speed so that is 4 amps for both fans.  Not bad.

I figured Sean would be jumping like crazy showing off the GS inverts and stuff, figured he might do two 24v dasy demo with my inverts 😛

Might well be just how it goes ;-).

Currently trying to pin down the exact solution for squelching that annoying induced noise on the H_MOS side of the inverters...we would rather delay a few days rather than have inverters that fail in the field.

9 hours ago, Sid Genetry Solar said:

  Not a design fault, that was a stupid human fault 🥴

Isn't that what we normally do to fry things? 🙄

Yeah, but I suppose my point is that it wasn't a design fault with the GS control board--it was a brain fault of the user...