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the 5000 model grow watt imported inverters are HF inverters that will prowse is saying are dangerous, so may not be comparable to the LF 26,000 watt AMG PowerJack LF inverters.
The Growatt 5kw is not dangerous if wired direct for 240vac . The danger is when an autotransformer is needed to make split phase 120ac . If the autotransformer is overloaded and the neutral is lost then the hot 120vac will return on the ground wire and all ground point will be 120vac and if I touch the inverter case I will be kill . I use a 5000 watt autotransformer one time and lost a neutral and the ground now is 120vac and shut down the inverter but not use an autotransformer anymore .
That's something still to be thought about carefully. The 240VAC wiring system would have to be completely separate to any USA split phase system and the 240V appliance checked to make sure what ever its earthing arrangements are would be compatible with (ie functional and safe) having one of the 240V wires tied to ground.
Even then, as I understand it, there are precious few pure 240VAC devices in the USA. Things that use 240VAC can have sections that rely on 120VAC being available to run control circuitry, fans etc. Maybe newer 'mini-split' aircons fall into the category of being purely 240V being able to use a SMPS to run the LV/control side of things.
sean was the one who said in one of his youtube videos that the gs ss case was thicker than powerjack .....that is where i got that information was from watching sean on youtube. could not tell you which video but that was a sean claim that the gs inverter had a thicker ss case.... perhaps that is no longer the reality and it is the same thickness ss cases....gs vs powerjack???? case thickness??? i have no way of telling you until it arrives (the 26000 watt amg powerjack ).... how thick the ss case is for sure....
maybe they are the same thickness,,,,but sean said the gs case was thicker in an early youtube video??? but who knows.... i do not...i was just going by what he was saying and perhaps in development the case thickness is the same as powerjack's....
speculation on my part by watching sean on his youtube video maybe 1 year ago ... can't say without searching for it....
i have a digital caliper.. i will measure some of the ss cases.
it looks like L1, N, N, L2 ,,,,, so then they just split the N into 2 N's...... i need to open up the case when it gets here....the 26,000 watt amg version....
i kind of thought the neutral (N) would be a floating neutral. and the case ground screw is only for grounding the case with a green wire. thanks for re-affirming that to me....
i think i have that part ok now.....
the PowerJack AMG version neutral (N) would be the center tap to get the split phase .... essentially a white wire neutral and two 120's (L1 and L2). typically black wires for each phase in the AC breaker panel.... the neutral is required to be painted white or taped white... by NEC code....
i have been studying the grounding more.....
equipment ground and the neutral bonding ( i best stop for now) mike holt has some good information on grounding etc. for pv.
thanks,,,,
gs ss case was thicker than powerjack
For the GS 6kw it's thicker...but the GS 12kw likely will have the same thickness case as the "26,000w AMG" inverter.
PowerJack is now selling 2 piece 6000watt, 8000watt, 12000watt, 16000watt, and likely other sizes of 2 piece inverters with the heavy transformer in one stainless steel box and the control boards dc-dc converter, etc. in the other stainless steel box. this was a good design move as they have separate fans cooling the parts and the helps keep all things cooler in my experience with the 24-volt 15,000 watt 3 piece PowerJack Stainless Steel inverter I have been running for almost 2 years now...the 3rd SS box has the 2 LCD screens (Thor's Note Book)...
it looks like they have the same feet on the bottom like my 15000 watt one --- kind of like an old stereo receiver...the boxes are more modular and the top and sides can be removed separately....
seems they are adding some digital meters on some models and some have fuses and some have breakers,,, I like the built in breaker style better...
they are designed to sit on a shelf/table etc. ,,,,not made for wall mounting....they are advertising on YouTube now also....i like this design style better than the other style... my preference as wall mounting a heavy inverter is almost impossible anyways for this old off-grid pilgrim!! 🤣
they are selling on eBay....
maybe Genetry Solar can sell on eBay??? I still think GoFundMe type of things may help Genetry Solar to find buyers/investors... only an idea....perhaps one to ponder upon....
how is the 12k Genetry Solar inverter progressing???
rained finally last night, so cold and cloudy out but the hair sheep babies don't seem to notice...😎
been dryer than popcorn farts here in South Dakota! so rain is welcomed...🤔😎😎
maybe Genetry Solar can sell on eBay?
I do not recommend selling GS Inverter on ebay unless you can sell 500 every month . Ebay fee and shipping and not as describe return will eat up any profits . I sold a lot of laptop with linux operating system for 3 years but made very little profits . I can not imagine GS paying return shipping of 300 hundred for people who do not know how to wire up an inverter or people who do not have enough battery to run an inverter for more than a hour and return for not as describe . Sean will have no hair left to be combed .
maybe Genetry Solar can sell on eBay?
if they are as good as he (Sean) says; then should not be many returns. he tests them as he assembles them; but then again people may hook them up wrong....most sellers have an out clause for user mistakes.... it cost about 2 dollars per pound to ship maybe less....so shipping is a killer now for sure...
did you see the 2 piece PowerJack inverters they are now selling on eBay???....2 boxes instead of one....i don't know how they are able to ship for such a small price...
I was trying to get 100 foot of 4/0 copper cable and the shipping was almost 200 dollars via ups and or usps was not much better....about 2 dollar a pound in 2 separate boxes....so punted on that for the moment.....for only 86 pounds total...
yea I only buy on eBay. I sold computers and hard drives about 15 years ago when I was into building computers....auction was too unpredictable...
kickstarter and indiegogo are 2 ways to raise capital for new products...
the trick will be wiil powerjack continue to build for them cheap enough to continue....
gofundme is another avenue possibly....
just throwing out ideas for them.... maybe nothing they are interested in until they get the bugs worked out of their designs......
https://blog.hubspot.com/sales/crowdfunding-sites
the above link has 23 crowdfunding sites for new businesses and new products...
seems like the pieces and parts supply is going to be a problem short term along with spiraling inflation in the states...
I read how Electrodacus used "kickstarter" and was only making about 100 pieces at a time...of his new products.
he (Dacian) now develops better versions without the kickstarter help, but he is an electrical engineer....in Canada...
Never underestimate the stupidity of an online purchaser and they will take full advantage of refund policies.
Real life examples...
ebayer bought a product from someone I know. Item received in good order, no packaging damage etc. Purchaser said unit was defective, blah blah blah, posted all sorts of nastieness on forums etc, claimed that he couldn't even plug it (the mains power cord) in as it was the wrong one. Turns out the moron, and that would be generous description, hadn't taken the plastic shipping shield off the prongs on the power cord and was trying to force the shield into the wall outlet. That was the entire 'problem'. Nothing else and it was due to his stupidity alone.
Want another one?
Direct sale from company web site this time. Purchaser bought a caravan roof top satellite dish. Item was shipped and verified to be received in good order via courier photo. Purchaser claimed dish was 'all bent up' on receipt. When photos of the dish were sent it was 100% obvious that he had mounted it on the roof and left it up rather than stowing it before moving the caravan and smacked it into a tree. Again, all sorts of nastiness posted in forums about poor quality etc. Again 100% his own stupidity.
yep, can't fix stupid. 🤣
and impossible to control the crooks...a door lock only keeps the honest people honest... i used to never lock any doors, but now lock most things as the thieves are out in force....
I used to say I purposely make a mistake everyday just so I can learn from my mistakes;
but in all reality, I make mistakes without trying and as a good builder/carpenter/etal,,, i try to fix all my mistakes....and do a better than good job....
not saying much.... i know!!!😎
Never underestimate the stupidity of an online purchaser and they will take full advantage of refund policies.
Oh yeah, that's the way it goes these days.
I once sold a hotspot on eBay. Buyer returned it saying "it won't recognize the SIM card" (despite the listing clearly stating, "No Returns.") Turns out they'd been plugging the SIM into the wrong spot on the unit...
well, when they sent it back, I found that they had lost the SIM card cover AND broke the actual SIM card slot.
"Seller's fault." Yeah, right.
Seems we at GS have already been outright stiffed of an entire 6kw inverter. They said that "it blew FETs on first power up." Sounded quite strange, considering they're all tested before being sent out...but providing the best customer service we could, Sean shipped a replacement unit out, with a return label for the first one.
You guessed it: we haven't received the first unit back. Very curiously, the customer hasn't answered any calls, texts, or emails since...
There are some truly lousy crooks out there.
And at the same time, we have quite a few GREAT customers. It's just a matter of enjoying the good customers, and trying not to go bankrupt as a result of the crooks.
On 7/12/2021 at 2:38 PM, Sid Genetry Solar said:Yes, it is highly confusing. I could make several guesses as to why/what, but at the end of the day electrical reality is what will prevail...
I can tell you that the center-tapped secondary of the transformer is going to handle any set of split loads. (L1 - N - L2). That's how I wired up my 9k PJ when I first got it (and it still runs that way, although the only PJ parts left are the mainboard and chassis!), and how most users will wire it up.
Possible reasons why PJ would put up that note:
- Overcurrent protection is only on L1 (deductively, L1 - N for 120v and L1 - L2 for 240v)
- LCD "meter" reading is only on L1 (for 240v) and N (for 120v)
Pulling from the L2 - N circuit won't have any overcurrent protection (for what little good it does), nor will such a load register on the LCDs. But it'll still work.
When you wire any split phase divice you do not connect the neutral to the current consuming device. What is confusing about that? L1 & L2 are what operates the device. The bare copper wire, lets say in romex is merely used to ground the device in 240 volt split phase. So no, you would not connect nor need to connect the 'N' terminal to your 240 volt device. Now, if you were to connect a 120 volt device you would need one of the 2 hot legs (L1 or L2) and the 'N' terminal to complete a circuit. Take a look in a house wiring breaker panel and see for yourself. If you are using, let's say 14/2 romex wire cable with a black a white and a bare copper, you would connect the black to your breaker which is your hot leg, the white would go to your neutral bar and the bare copper would go to either a ground bar or the neutral bar in your box. But if you were using the same cable to send 240 volt you would connect the black to either L1 or L2 and the white to the other hot leg and your bare copper would still go to either the ground or the neutral bar. No magic...that's how electric works.