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Thank you for the great forum, Safe Driving over the weekend. Sincerely Jason

LionKing

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  1. https://www.sealedperformance.com.au/faq/what-is-the-difference-between-cycle-use-and-standby-use/ I think cyclic is the appropriate one for Solar usage. The only thing I'm contemplating at this point is whether to disconnect float voltage after say 24, 48 hours? Because at current rate 54V x 2.8A, I'm using up over 100KWH monthly in maintaining float charge.
  2. I went with 1.81V cut-off instead to avoid getting close to damaging end-voltage, so 43.4. Also, left Floating voltage at 54 and changed CV from 56 -> 57.2
  3. Trying to figure out Cutoff discharge voltage but confused by this table. What does the first table really mean? In the manual it says 10hr End-Voltage is 1.80V/cell and that the battery is not able to discharge more capacity even if end voltage is lower and that doing so will damage the battery. However, in the tables it shows end voltage as low as 1.30. Should i set the cut-off voltage to 1.80V/cell - to be on safe side? Since we are almost always < 0.2C (Amps) and I don't ever see us going over 0.5C discharge current. Regarding Charging. The datasheet has following table: I think the figures above are Charging voltages and in manual under "Temperature and Floating Voltages" I found following info: I'm using Infini in Grid-Tie with Backup mode and with frequent outages - about 4 times a week, I'm guessing my "application" is Cyclic usage? so I should go with 2.35 Vpc (Charging Current) I get 56.4 charging voltage and 30C ambient temp the floating voltage should be 2.24 Vpc, so 53.76 floating voltage. Current inverter charger settings seem correct then? What are cut-off discharging and re-discharging voltages?
  4. I have 4X Narada MPG (AGM) 12V 200AH batteries wired up to Infini 10KW for a year now. In my setup, the battery bank reaches 99% capacity (as per inverter display) and stays there, while being continously charged at 2.1A. I thought that was the needed float charge, however, I came across a setting in inverter which allows me to stop the charger if Amps are below certain value for X amount of time. Now I'm confused whether the 2.1A flow charge is needed or not? am I damaging batteries in the long run with continous 2.1A charge? Does anyone know how to do Equalization charge using infini? My current settings:
  5. Thanks @Youda Actually, if you look at the pdf link I shared in my first post, the inrush current (> 3000W) lasts for a few milliseconds. I don't think the chart above will show that correctly, since its just showing rms value over a 1000 milliseconds? Also, you have 10KW capacity on the phase, in my case its only 3.3KW - so not sure if its ok for my inverter. We did get the printer though but found an outlet that's Not powered by the inverter and been using that. If anyone else has a 3KW or 10KW Infini, please let us know if a typical home-use laser printer works fine on it.
  6. Planning on getting an HP Laser Printer for our home. Datasheet: http://h20195.www2.hp.com/v2/GetDocument.aspx?docname=4AA6-6825EEE&doctype=data sheet&doclang=EN_GB&searchquery=&cc=uk&lc=en Although, it uses 255W while printing, all laser printers have high inrush current at startup (> 3000W). Analysis here; https://www.donrowe.com/v/vspfiles/assets/images/laser_printer_startup_surge.pdf Since most of our home outlets are wired with the Inverter output, I'm hesitant to buy a laser printer - especially since Voltronic doesn't have any Surge Power rating for this Inverter on their website. Anyone running (or tried) a Laser Printer off of Voltronic Infini Plus?
  7. I just spoke with my installer and he's saying that he has VM installed in his own home and it definitely gets excess energy from Grid, instead of switching completely to Grid - when PV array can't provide enough power for the current load. I assume you're refering to Rated power of the inverter, instead of PV array not making enough to run the current load?
  8. Yea, that's what I recall from my last year's research that it was Infini Super and I think also V models that had component/board issues. Don't recall any issues with Infini PLUS. Coming back to the original question, I looked at Voltronic's website but don't see anything specific about Grid-tie support in Axpert King manual. Looks like Hybrid inverters basically do what I'm looking for and that's the Infini line. Whats the difference between regular Infini and Infini V?
  9. You mean Axpert is lower quality than Infini or Infini is lower quality? Actually, I'm in Pakistan and I got mine from the Installer - who got it from a reseller Omega Power Usa (www.omegapowerusa.com) and the website doesn't work. Hoping I don't run into any warranty issues.
  10. Helping out my uncle with picking an solar inverter, his municipality does Not allow net-metering/sending electricity back to the grid. However, he wants to mix-match electricity e.g. If the load is 4KW and 5KW solar is only making 2KW then remaining load (2KW) should come from the grid AND Batteries should only be used when Grid is down (i.e. last option to tap). My understanding is that this happens in a Grid-Tie inverter But axperts are classifieds as Off-Grid and there is no information regarding grid-tie on voltronic's website as well. I contacted a local installer, who did my install as well and is quite informative, but he said that Axpert do support Grid-sharing. Does anyone know whether this is true or not?
  11. Interesting...so is this number accurate or not?
  12. We have a Voltronic Inifni 10KW inverter with SNMP web card. The (currently) 5KW solar system was installed on June 10th, 2018 so its almost a year now and I wanted to get an idea of how much energy has been produced. I'm confused by the "Power Statistic" page e.g: - Annual chart shows all the power generated (10,000 KWH) as if it were in 2019 - which is impossible. - Monthly chart, shows all power generation to be in only 3 months - again not possible. - Daily chart seems accurate. Why are the annual/monthly charts Not accurate? Is the inverter not logging data correctly or is this a setting issue? What about "This year" value in the table below chart, is that supposed to be for calendar year or 12 months since installation? because if its the former, then the value is incorrect, even for the 12 month option its a bit optimistic.
  13. I have 4 200Ah Narada MPG batteries connected with Infini Plus 10KW. In my area we get frequent blackouts (typically 3-4 hours per day, around 4 days a week). Couple of things I've noticed is when there isn't any blackout for a day or two, the batteries are still continuously charging (floating charging) at 2.1 amps and battery capacity is always at 99% (as per inverter). In the settings there is an option to stop charging after X hours if the amps is less than Y. I was thinking of setting it to 24 hours and 2.1 amps. Does that sound like a good idea?
  14. As per NEC, there are three options to ground the DC side, earlier it seemed that the Option 1 (separate electrode for DC side) was the only way to go later NEC clarified the statements and now we have three ways - two of which involve common electrode for DC and AC. I'm in Pakistan and the govt here probably decided to just copied NEC's initial rules, so the only acceptable way to legally do DC grounding here is by having a separate electrode. Getting a new grounding electrode is quite expensive and we already have one electrode installed, I was wondering if there is any downside to to option 2? If the inspector shows up, he will still see two grounding wires coming out of the ground (although they are bonded together). Any suggestions? Btw, the required resistance is <= 5 ohms for each GEC. Another question: I'm using Voltronic Infini Solar 10KW plus inverter. It has a equipment grounding screw on the body, that connects with AC grounding side, right?

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