December 2, 20169 yr Hi Guys Have anyone had any experience with vision inverters? EA3KHD <- Product code, when googled it takes you to eastups website. Hybrid Bi-Directional Inverter Hybrid (Bi-direction) Solar Inverter is PV energy combined with energy storage systems. It utilizes solar power, AC utility and battery power to ensure continuous power supply, and users can store the unused energy produced during the day by PV system in the battery and use it whenever they need, even at night. It helps increase self-consumption and achieve greater energy self-suffi ciency. It is a 3kw 48v hybrid inverter. They are fairly cheap at around R11k ex vat. Does anyone have any comments on them? Seems Vision brings them in and re-brands them.
December 2, 20169 yr I know of one installer that has tested one of these inverters on an installations and he seemed quite impressed with it. According to him the inverter does not need batteries and can operate from solar only and a 48v battery bank can be connected to it as well. It operates very similar to the Infiny inverter and it seems they are in the process of getting the NRS certification..
December 2, 20169 yr These guys import EastUps units and rebrands them -> http://www.fireflyproducts.co.za/product/3000w-hybrid-inverter/ They don't list that specific unit, though. Do you mind telling me where you got the price for that unit?
December 2, 20169 yr Author Hi Hein I got it from Enervision in CPT. What do you think of the ups? So far after reading through the technical data only downside is they cannot be paralleled. It will also switch to completely to bypass when 3kw gets exceeded for too long, which still isn't bad.
December 2, 20169 yr 3 hours ago, Johann1982 said: It will also switch to completely to bypass when 3kw gets exceeded for too long, which still isn't bad. That is pretty awesome! I wonder if the Infini's can do this? Does it mean that let's say the load is 10kw, then the inverter will be bypassed and the whole 10kw will be supplied by the grid? Edited December 2, 20169 yr by francois
December 2, 20169 yr Author see specs below.. Doesn't look half bad. I am seriously considering replacing my 2x 5kva Axperts with 1x of these. I rarely exeed 3kw draw. Only reason I have 2x Axperts is for the amount of panels. The vision can handle 4.5kw which will be perfect for me. MODEL EA3KHD Rated power 3000 W Operating mode Flexible setup via upper computer software or LCD interface PV INPUT Max. input power 4500 W Rated input voltage 360 Vdc Max. input voltage 500 Vdc Start-up voltage 115 Vdc Initial feeding voltage 150 Vdc MPPT voltage range 250 Vdc ~ 450 Vdc Max. input current 18 A PV short circuit current 18 A Number of MPPT 1 BATTERIES Battery type Lithium battery Rated voltage 51.2 Vdc Voltage range 46.4 Vdc ~ 57.6 Vdc Battery type VRLAAGM maintenance-free battery Rated voltage 48 Vdc Voltage range 40 Vdc ~ 58 Vdc Battery capacity 100 Ah ~ 120 Ah optimized Rated charger power 1425 W Max. charging current 25 A (5 A / 10 A / 15 A / 20 A / 25 A settable) Charging curve 3-Stage Max. charging efficiency 94% Rated discharge power 3000 W Max. discharge current 100 A Discharge depth（%） 80% default Max. discharge efficiency 94% AC GRID INPUT AC start-up voltage 120 Vac Grid voltage range 170 ~ 280 Vac Rated grid frequency 50 Hz / 60 Hz Allowed grid frequency 50 ± 5 Hz / 60 ± 5 Hz AC input power 5100 VA / 5100 W Max. input current 30 A AC OUTPUT (connect with load） Rated output power 3000 VA / 3000 W Rated output voltage 230 Vac（208 / 220 / 240Vac settable） Rated output current 13.0 A (14.4 A / 13.6 A / 12.5 A) Output voltage range 184 Vac ~ 264.5 Vac Rated output frequency 50 Hz / 60 Hz Output frequency precision ± 1% Power factor 0.9 leading ~ 0.9 lagging Output voltage precision ± 1% Transient recovery time ≤ 40 ms Peak factor 3 : 1 Linear load waveform distortion ≤ 3% Short circuit current 45 A (100 ms) TRANSFER TIME Off-grid mode → On-grid mode 0 ms On-grid mode → Off-grid mode 10 ms EFFICIENCY MPPT efficiency 99% Max. PV efficiency 96% OTHERS Communications RS232 / USB / RS485 / SNMP (optional) Protection rating IP20 Operating temperature 0 ~ 40℃（> 40℃derating） Max. relative humidity 0 ~ 90% Max. altitude ＜1000 m (> 1000 m derating) Cooling forced ventilation Alarm LED, buzzer Display LED, LCD Noise ≤ 50 dB Topology Transformerless Dimensions (W×D×H) (mm) 410×123×470 Packaged dimensions (L×W×H) (mm) 582 ×508 ×183 Net weight (kg) 14.42 Gross weight (kg) 16.40
December 2, 20169 yr Author I also like the DOD on their LLC battery range. I am still waiting on a price on these. Model Normal Voltage Capacity AH 10H rate Dimensions L x W x H Weight KG Terminal Type Type Warranty LLC-300 2 300 125 x 207 x 372 23.4 ΦM8 Lead Carbon 2 Years LLC-400 2 400 154 x 207 x 372 29.7 ΦM8 Lead Carbon 2 Years LLC-500 2 500 183 x 207 x 372 35.5 ΦM8 Lead Carbon 2 Years LLC-600 2 600 212 x 207 x 372 41.5 ΦM8 Lead Carbon 2 Years LLC-800 2 800 299 x 211 x 372 59 ΦM8 Lead Carbon 2 Years LLC-1000 2 1000 357 x 211 x 372 71.4 ΦM8 Lead Carbon 2 Years
December 2, 20169 yr Author Ok, I have ordered 2x Vision 3kw 48v inverters. Going to test one out for myself and see how it holds up.
December 2, 20169 yr Author 3 hours ago, francois said: That is pretty awesome! I wonder if the Infini's can do this? Does it mean that let's say the load is 10kw, then the inverter will be bypassed and the whole 10kw will be supplied by the grid? Hi Francois As far as I can tell yes. When the load exceeds 9kw (Surge Rating) for too long it will switch to bypass. I will know after next week if it indeed will work like that.
December 2, 20169 yr 1 minute ago, Johann1982 said: Hi Francois As far as I can tell yes. When the load exceeds 9kw (Surge Rating) for too long it will switch to bypass. I will know after next week if it indeed will work like that. Wow if that is the case then no splitting of the DB will be necessary, making the install much easier and cheaper. Please keep us updated.
December 2, 20169 yr Author That was exactly what I was thinking, but I would still not run a stove and oven through one of these. Changes to DB is minimal when only stove & oven gets taken off. There is also a 5kw in the pipeline, just not sure when they will land.
December 2, 20169 yr 2 hours ago, Johann1982 said: I would still not run a stove and oven through one of these. + 1 on that statement.
December 2, 20169 yr The spec sheet of the Vision matches that of the Infini 3 kw Plus almost perfectly. If it is reliable it will centainly give most members of Powerforum a new vision. Pitty it can not be paralleled.
December 2, 20169 yr 28 minutes ago, Groenkaroo said: "will certainly give most members of Powerforum a new vision." Pun intended?
December 5, 20169 yr On 12/2/2016 at 5:35 PM, Groenkaroo said: The spec sheet of the Vision matches that of the Infini 3 kw Plus almost perfectly. If it is reliable it will centainly give most members of Powerforum a new vision. Pitty it can not be paralleled. Yes, I also noticed that - I think it is just another re-branded infini with some minor changes to the look-and-feel.
December 8, 20169 yr Author So I got my East/Vision inverter today. Looks and feels solid. Will probably install over the weekend. Will upload pics and post update on how it performs.
December 8, 20169 yr I also got my Vision inverter today. Johann you must make sure to upload enough pics because this is going to be my first solar installation and I can do with any help I can get.
December 9, 20169 yr Author Hi Groenkaroo Sure, will do. The vision seems fairly foolproof. If you follow the manual you can't go wrong. Just make sure you have breakers between everything and the inverter is earthed, then you should be good.
December 10, 20169 yr Author Vision 3kw inverter. I disconnected the 5kva Axpert. Only the Vision is operational.
December 10, 20169 yr Author 24x 100ah 12v Sonic Gel batteries. I used sisalation to insulate the roof from heat. Batteries are sitting at 22degrees in middle of summer.
December 10, 20169 yr Author I am trying to download the software for the inverter from Eastups website, but seems the FTP server is running on a Telkom dialup connection. Will get a copy from the suppliers on Monday to fine tune. At the moment the batteries are getting priority charge from panels. I would like to set it so that it uses excess power to charge batteries, but hey.. so far so good. At least it is working.
December 12, 20169 yr On 12/10/2016 at 2:48 PM, Johann1982 said: 24x 100ah 12v Sonic Gel batteries. I used sisalation to insulate the roof from heat. Batteries are sitting at 22degrees in middle of summer. Are those 6 parallel strings?
December 12, 20169 yr On 2016-12-10 at 2:48 PM, Johann1982 said: 24x 100ah 12v Sonic Gel batteries. I used sisalation to insulate the roof from heat. Batteries are sitting at 22degrees in middle of summer. Only the first strings of batteries are working. You need a bus bar and all the cables should be the same length. Just a tip on wiring those bats up.
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