Navitron Renewable Energy and Sustainability Forum

Energy/Electricity Storage and Use/Grid Connection => Off-Grid, Batteries & Inverters => Topic started by: clivejo on August 30, 2013, 10:53:22 AM



Title: Taiwanese inverter 48VDC 4kW
Post by: clivejo on August 30, 2013, 10:53:22 AM
Has anyone ever used one of these inverters.  The specs look good, but do they work!

http://www.ebay.co.uk/itm/4000W-48V-pure-sine-wave-solar-smart-UPS-inverter-charger-max-50A-/161044036501


Title: Re: Taiwanese inverter 48VDC 4kW
Post by: biff on August 30, 2013, 11:55:22 AM
 Hi Clive,
 I have used quite a few of the 1kw x 48v inverter/controller chinese Y/S ones and never had one go wrong yet.
   Then again I have used the 120volt x 2kw old type low frequency jobs which are bullit proof.That one you put up is a 4kw x 48volt with a 30 amp charger it is a double conversion job with the latest hi-tec toys and for the money it is exellent value.
     The chinese inverters/controllers/chargers have come a long long way from the old kettle element in the grey box.
  I have blown most of the big names but have only manage to crock one old chinese grey box controller. :hysteria
                                                                    Biff
  


Title: Re: Taiwanese inverter 48VDC 4kW
Post by: clivejo on August 30, 2013, 12:03:41 PM
My Trace is gone again and this time I think its beyond repair :(   Yet again as soon as I get something working, something else breaks :(


Title: Re: Taiwanese inverter 48VDC 4kW
Post by: clivejo on August 30, 2013, 12:07:07 PM
I like the idea of the RJ45 port, but would like more details.  It would be very handy if the unit can be controlled via IP, meaning I can control it via a Raspberry Pi


Title: Re: Taiwanese inverter 48VDC 4kW
Post by: camillitech on August 30, 2013, 12:38:11 PM
They're Taiwanese not Chinese, huge difference  ;D


Title: Re: Taiwanese inverter 48VDC 4kW
Post by: clivejo on August 30, 2013, 12:40:15 PM
They're Taiwanese not Chinese, huge difference  ;D

ah Paul!  Can I have your Trace inverter, pretty please with sugar on top?


Title: Re: Taiwanese inverter 48VDC 4kW
Post by: camillitech on August 30, 2013, 12:52:42 PM
If it ever dies CJ you can have it for the price of the postage  ;)


Title: Re: Taiwanese inverter 48VDC 4kW
Post by: clivejo on August 30, 2013, 01:25:59 PM
If it ever dies CJ you can have it for the price of the postage  ;)

 :cross  Lets hope that its soon :P   :hysteria


Title: Re: Taiwanese inverter 48VDC 4kW
Post by: stephendv on August 30, 2013, 01:28:30 PM
It looks the same as a unit which is quite popular here in Spain sold by these guys: http://www.tab.com.es/ENG/vx1.aspx
As far as I remember there was one chap who mentioned an issue with using the solar charger + grid at the same time.  Think it alway prioritised grid over solar for charging or sometihng like that (obviously don't hold me to it :) )

Other than that have not heard any other complaints.


Title: Re: Taiwanese inverter 48VDC 4kW
Post by: billi on August 30, 2013, 02:12:22 PM
actually this funny cause i was in contact with the seller just yesterday for a 2400 watt unit with 50 a solar charger for a friend of mine   ..... , very fast response ....

No risk no fun .... whistle


Title: Re: Taiwanese inverter 48VDC 4kW
Post by: clivejo on August 30, 2013, 02:18:00 PM
Let me know how it goes Billi, I have asked for more details, mainly about the "comm" port.  I'm hoping the RJ45 is an ethernet port and has a built in web-server!!

PS I wonder if shipping together would lower the deliver charge?


Title: Re: Taiwanese inverter 48VDC 4kW
Post by: billi on August 30, 2013, 02:22:37 PM
will not order for a while ....

I changed the rest of the messages from "Chinese" to "Taiwanese" as well  , after you changed your thread opener 


Title: Re: Taiwanese inverter 48VDC 4kW
Post by: stephendv on August 30, 2013, 02:49:10 PM
Let me know how it goes Billi, I have asked for more details, mainly about the "comm" port.  I'm hoping the RJ45 is an ethernet port and has a built in web-server!!

Yep, it comes with PC software the RJ45 is an ethernet port.  I'll ask the Spanish reseller for a quote, will be less hassle ordering with EU.


Title: Re: Taiwanese inverter 48VDC 4kW
Post by: stephendv on August 30, 2013, 04:46:06 PM
Ed just noted that the RJ45 is apparently for RS232.  It definitely has pc software available though.


Title: Re: Taiwanese inverter 48VDC 4kW
Post by: clivejo on August 30, 2013, 04:58:52 PM
Ed just noted that the RJ45 is apparently for RS232.  It definitely has pc software available though.

Yes I was afraid of that!  The cable in the photos looks like a serial cable.


Title: Re: Taiwanese inverter 48VDC 4kW
Post by: stephendv on September 02, 2013, 03:56:12 PM
Spanish distributor came back with prices, they don't have the 4kW in stock but should import it in "the next few months".  List price is around 1300 euros, ex VAT.


Title: Re: Taiwanese inverter 48VDC 4kW
Post by: clivejo on September 02, 2013, 05:15:26 PM
wow they have some mark up on it then!

Its on eblag for 423 + 80 delivery + another 84 for customs. Total 587 about 700 yo-yos!!


Title: Re: Taiwanese inverter 48VDC 4kW
Post by: stephendv on September 02, 2013, 05:39:39 PM
Even with the fact that they offer a 2 year warranty, still probably worth it to get the ebay job.  Could buy a spare with what you'd save from the spanish lot.


Title: Re: Taiwanese inverter 48VDC 4kW
Post by: billi on September 02, 2013, 05:50:32 PM
Quote
700 yo-yos!!
  :hysteria a light weight this currency is,  even lighter then a pound  ....?....

Anyway , as  i said , the ebay seller seemed to be  ok in my opinion  (ok its his job to sell) , it does make sense to just get the cheapest option , for a product we are not sure about how good it is .....

I bought one of those "fake" (Wellsee) Mppt controllers for friends of mine   2 years back and thought its a crime to buy this plastic china cr*p ....... installed it and went away , no complain since 2 years now .... hard to tell ....


Title: Re: Taiwanese inverter 48VDC 4kW
Post by: mickmm on September 09, 2013, 05:28:13 PM
HI   my name is Mick   and i have just   purchased one of these inverters  but its a 2400 va   i am only using it as a stand alone inverter  as i allready use a trace 45 amp   controller
for my 24 v battery bank  charging which  consists of 6 110ah   agm  batteries,  i use   4 sharps 230 watt  pv  on my shed roof   and all works very well     i found these inverters  works very well   and copes  well with   electric kettles and tvs and computers etc,     
the main reason i bought it was because i was told that the output gave 230v on the live and  zero volts on the neutral   so i assumed  was the same as the house mains input  i was told that the neutral can be strapped with the earth    so it in fact   does the same as a PME system with earthing   i have yet to connect the earth as i only found out today that the earth and neutral can be connected together    so it looks like i will get an earth on my 13amp  sockets
I have just installed  a 500 watt Ista breeze wind turbine to my system   today  and i am waiting now for  some  wind  to test it out   
i am very pleased with the quallity of the inverter   and the helpline is very good  with instant answers  to any problems you ask     you can print out  the details  and instuctions  as a pdf file from the web site   go for  it    and it does have software   for programming and monitoring   with laptop etc  and they sy=upply an rs232 lead  with the kit   exhappy: mick


Title: Re: Taiwanese inverter 48VDC 4kW
Post by: clivejo on September 09, 2013, 07:20:48 PM
Do you know if the software is windows only?


Title: Re: Taiwanese inverter 48VDC 4kW
Post by: mickmm on September 10, 2013, 07:52:00 PM
Hi   in answer to your question about the software,  you can find out about it by   googling   mppsolar   the click on   solar inverters  ups    and choose  from the list   PIP-HS this will give you some info  on the software and how it is available      you can also just  go to mmpsolar  website  and look at the   types of inveters  which includes the one you are looking at   and all the tech details    hope this helps    mick


Title: Re: Taiwanese inverter 48VDC 4kW
Post by: clivejo on September 10, 2013, 09:05:10 PM
All the information on the site points to it being Windows only.  This is a real shame as I was hoping to use a Raspberry Pi for controlling the entire system.


Title: Re: Taiwanese inverter 48VDC 4kW
Post by: clivejo on September 10, 2013, 09:20:29 PM
On further reading a found a link to an optional "MPI SNMP card"

Quote
The SNMP/WEB card provides you with a very easy to use network management capabilities by supporting both SNMP and HTTP protocols. The SNMP (Simple Network Management Protocol) will create a simple-to-access, but informative, website for your PV inverter with basic network controls; while the HTTP (Hypertext Transfer Protocol) monitors your inverter and allows system to send updates on the status of the inverter to user through a web browser interface. Monitoring your MPI inverter will be as easy as surfing a website, from anywhere in the world.

It only seems to be for the grid-tied series and also is limited to monitoring.  I need the ability to configure the system and switch it on and off if required.