Thread Rating:
  • 0 Vote(s) - 0 Average
  • 1
  • 2
  • 3
  • 4
  • 5
EASUNpower?
#11
https://www.aliexpress.com/item/EASUN-PO...autifyAB=0
Solar Inverter 2400W Grid-tied Inverter 24V to120V 2000W MPPT Inverters Pure Sine Wave Inverter Hybrid Solar Inverter 40A AC Charger Battery Charger
IGrid SV LV 3KW is a Hybrid V Series 2400W Output, 24Vdc 110v-120vac Hybrid Grid-Tie / Off Grid Solar inverter-charger
IGrid SV LV 6K is paralleled by 2 pcs of the IGrid SV LV 3K inverter with parallel kits
This inverter available 2 phase 120 VAC / 240
 VAC L1 + L2 = 220 Volt AC.)   ( Fit the case: electricity works in 2 phase of 120v each. a neutral, a graund and 2 phase of 120v.
this one is 48v
https://www.aliexpress.com/item/2kw-On-G...autifyAB=0
Reply
#12
Yeah, wonder why these aren't listed on their web site!?!? On the datasheet listed towards the bottom, it shows the IGrid TT 10kW as being the split phase. The others aren't shown to be phased.

That's where it gets confusing, at times. One part of the listing says one thing, and another part says something else. Which part do you believe?

However, reading over it again, at the very top of the listing (can't believe I missed this):
Quote:MODEL -- IGrid-SS 2KW
Phase -- 1-phase in / 1-phase out

So the 2kW model, listed, is only 1 phase

Addendum:
The IGrid TT 10kW is listed as a 3-Phase unit
Proceed with caution. Knowledge is Power! Literally! Cool 
Knowledge is Power; Absolute Knowledge is Absolutely Shocking!
Certified 18650 Cell Reclamation Technician

Please come join in general chit-chat and randomness at Discord Chat (channels: general, 3d-printing, linux&coding, 18650, humor, ...)
(this chat is not directly affiliated with SecondLifeStorage; VALID email req'd)

Kickstarter: Honest STM32F103 based dev Boards
Patreon: Korishan
Reply
#13
A split-phase or single-phase three-wire system is a type of single-phase electric power distribution.
perhaps this is the explanation. They need to hire someone that understands us electricity and who can write technical manuals in English.
Just needs to be synced since they are hybrid inverters one inverter would be synced to L1 and the other inverter would be synced to L2.
Reply
#14
3-Phase inverter will not work on Split-Phase power. Not properly, at least. The only way to get a 240V Single Phase EU inverter to output 120V Split Phase is go through a Transformer with a center tap. And to have a transformer that can handle the loads the inverter can dish out isn't cheap. It'd be better to find an inverter than can do true Split-Phase to begin with.

You can't take the 2 Hots from the inverter and hook it to split phase. It won't work.

Now, if you have the ability to build a transformer with center tap, that's a different story.

Now, if you are referring to the manufacturer hiring someone who understand US electric and what not, they already have that. They just decided to not build a unit that can do split-phase. They have several that can 120V just fine.
And yeah, they need better English as it is the language of Commerce
Proceed with caution. Knowledge is Power! Literally! Cool 
Knowledge is Power; Absolute Knowledge is Absolutely Shocking!
Certified 18650 Cell Reclamation Technician

Please come join in general chit-chat and randomness at Discord Chat (channels: general, 3d-printing, linux&coding, 18650, humor, ...)
(this chat is not directly affiliated with SecondLifeStorage; VALID email req'd)

Kickstarter: Honest STM32F103 based dev Boards
Patreon: Korishan
Reply
#15
Reply
#16
That was posted by the seller of the unit on eBay. That is not listed on the manufacturers or the distributors web site. I personally would not hook them up that way myself or encourage anyone else to do that. Not until I see documentation from the manufacturer and distributor that they can be hooked up that way.

The manufacturer and distributor both state that the unit can be connected parallel, and mention nothing about that type of connection.

The reason why that is bad, is because if one unit is slightly out of phase with the other, it will being to reek havoc on motors that require 240V (dryers, for example). The two units MUST be in correct phase and Hz and timing to be used properly in that configuration.
They may work like that in Grid-Powered mode. But when the grid goes down, and running off DC power, they could drift.

Daromer (I think it was him) has contacted them several times and I believe he stated that they weren't going to build or support 240V 60Hz split-phase for the US.

Addendum: I wanted to add. If these were cheap units, or ones salvaged or bought from someone else and little or no money was put into them, then I could see someone hooking these up and doing tests to see what they could do to get these to work for US mains. But, being new, I would not recommend it. They are too expensive to test out that way.
Proceed with caution. Knowledge is Power! Literally! Cool 
Knowledge is Power; Absolute Knowledge is Absolutely Shocking!
Certified 18650 Cell Reclamation Technician

Please come join in general chit-chat and randomness at Discord Chat (channels: general, 3d-printing, linux&coding, 18650, humor, ...)
(this chat is not directly affiliated with SecondLifeStorage; VALID email req'd)

Kickstarter: Honest STM32F103 based dev Boards
Patreon: Korishan
Reply
#17
If it sounds too good it probably doesn't exist in real life Sad

later floyd
Reply
#18
Yeah this is the interesting part because nor MPP or voltronic say its possible and I find no reference of it. Of course its just a matter of software to allow it to be "split phase" instead of 3 phase. Have they released it or not?

Who dares to buy them and test and crosscheck it?
Korishan likes this post
The Ultimate DIY Solar and build place
YouTube / Forum system setup / My webpage  Diy Tech & Repairs

Current: 10kW Mpp Hybrid | 4kW PIP4048 | 2x PCM60x | 83kWh LiFePo4 | 10kWh 14s 18650 |  66*260W Poly
Upcoming: 14S 18650~30kWh | Automatic trip breakers, and alot more
Reply
#19
I emailed easun power and asked if the seller on EBAY and the one on AliExpress are Offical EAsun stores
Hope they are reaally connected to the manufactor and not folks looking to make a fast buck selling products that don't work or are vaporware.
later floyd
Korishan likes this post
Reply
#20
Dunno if this guy is an "official seller" but I did just buy one of these from this exact seller and it appears to work fine.

I am currently running my computer on it as I type this (though on AC bypass right now since the sun went down, but was on solar earlier). Also have my fridge on it, but when I put my 1700w microwave on it I get overload warning (still delivers the power tho).

So would I be correct in assuming that these "off grid" inverters sync with one of your house's 120v bus when you plug it in (depending on which you plug it into)? Otherwise how are they doing the bypass?
Reply


Who read this thread?
100 User(s) read this thread:
AZ_Tekkie, daromer, Sean, mike, Majorphill, Elwood, riveracc1, ruby2, Korishan, PAF, Franky Beuselinck, Frnandu Martiński, jdeadman, Zagy, wim, watts-on, Dan Lim, jesusangel, Hanssing, IronSky, Stefaan De Ridder, Igor Maliszewski, lnxpro, Shade, Geek, Jon, redstar2k, jamesk9, mr_hypno, floydR, sunseeker, srk, Lucian Macota, cristof, Oderus420, rev0, not2bme, CarelHassink, kennl, Dave Adams, macallazack, Pavel Razzorenov, vlmendezjr, Filip, Sumo, Solexx X, Ste Collister, rdh824, Charly144, djuro, Detritalgeo, jm1, Jason Morris, Photovoltaik.blog, brwainer, drchips, Brent, cat23, River Ryan, nrm21, Brian_E, Jason, Farends, rtgunner, paulkok, darko79, outerlimits, wasatchwired, gpn, NGPowerwall, joecmn, dbatoloco, Scottf54, András Balogh, kanchana, ionutnegrea, Christian Maja, thanar, martinbanjo, DK100, adicretu, completelycharged, Zvonko000, colibri1, SilverNodashi, duwdu, fjn, tfrank, cadric, oldserg, JDish, Sholphin02, pyrophantom, Riplash, 100fuegos, Staahhshhh, bukvaahmed@gmail.com, w0067814, fonta, fenlui

Forum Jump:


Users browsing this thread: 2 Guest(s)