July 26, 20169 yr Plz send me setti g of inverter and charging of cell.it is AGM cell of 2v.inverter is of 48v I am new in this field Col.Haider
July 26, 20169 yr 1 hour ago, Haider said: Plz send me setti g of inverter and charging of cell.it is AGM cell of 2v.inverter is of 48v I am new in this field Col.Haider Hi Haider, welcome to the forum. Inverter settings are not one size fits all - you have to configure the inverter for your specific needs. If you can give us more information about your set-up and requirements, e.g. PV panel specs, number of panels, off-grid, grid-tied, feedback to grid etc. etc. we might be able to make a few suggestions. Regarding charging settings, again you'll have to send us more detail, preferably a link to the datasheet of the cells you are using.
August 2, 20169 yr Author thanks for response detail of panels= iam using 18x250w pannel made in china 3kw plus infini inverter(25 amp builtin charger 24 x 2v 750 ahc cells of SEC COMPANY solarpower v1.07 software no power to grid problems> cells dos not charge full when elecrticity goes inverter trip auto.. we ve to turn it on manually i dont know about more about solar but learning a lot from u people,plz send me pic of setting or now i can understand inverter setting under ur guidance. my requirement is to gentrate 3kw for home use for max economy. haider
August 2, 20169 yr 2 hours ago, Haider said: thanks for response detail of panels= iam using 18x250w pannel made in china 3kw plus infini inverter(25 amp builtin charger 24 x 2v 750 ahc cells of SEC COMPANY solarpower v1.07 software no power to grid problems> cells dos not charge full when elecrticity goes inverter trip auto.. we ve to turn it on manually i dont know about more about solar but learning a lot from u people,plz send me pic of setting or now i can understand inverter setting under ur guidance. my requirement is to gentrate 3kw for home use for max economy. haider First thing that jumps to mind is the huge battery bank you are trying to charge with the 25A from the infini. The standard charging current should be about 1/10th of the Ah rating of the battery bank - you have a 750Ah battery bank and it should be charged at about 75A - you are charging it at 25A max, which is 1/3rd of the recommended / standard charging rate for your battery bank. Your inverter will really struggle to get the battery bank charged. It might work if you only discharged it say 10 to 15% every night and have good sunshine the next day, but if you drain the battery bank more than that every night, the inverter will not be able to recharge it to 100% during the day and after a few days of this, the battery bank will be dead - that said, this is when you have disabled AC charging and runs from the battery bank at night. If you are charging from PV and AC and runs the load from the grid at night it is OK, because then the battery bank will eventually be charged after a day or more depending on the DOD. You also mention that the inverter trips when the the electricity goes (grid fails); does that happen during the day when you have enough sun (incoming PV) to cover the load or does this happen at night when the inverter has to fall over to the battery bank? What is the total load supplied by the inverter when it trips? Keep in mind that if your total load at any time is more than 3KW while the grid is available, the inverter will trip when the grid fails and the load is still more than 3KW, no matter if the incoming PV and / or battery is enough - the inverter can only supply a load of up to 3KW when the grid is not available. When you say "my requirement is to gentrate 3kw for home use for max economy" I suspect that your total load might be more than 3KW at certain times and that is why the inverter then trips when the "elecrticity goes".
August 3, 20169 yr Author thanx for helping ,i understood the problem .let me increase my charging then we ll move toward economy.plz let me know the seeting for max economy haider
August 3, 20169 yr Haider Your battery cut-off voltages with and without grid of 46.5V and 40.0V respectively are extremely low and will result in damage to the batteries in my opinion. Safer settings would be 49V and 46V. I don't know your type of batteries and their specs but going below 46V on typical solar type batteries (48V system) usually result in damage to the batteries. Just my 2c. Cobus
August 4, 20169 yr On 8/3/2016 at 5:46 AM, Haider said: thanx for helping ,i understood the problem .let me increase my charging then we ll move toward economy.plz let me know the seeting for max economy haider Hi haider There is no way you can "increase the charging" on your infini - the maximum charging current is 25 A and according to your settings in the screenshots, you have it set to 25 A already and you are charging the battery by PV and grid and are using the grid when pv is not available and if the battery voltage goes below 50 V you start to recharge it from the grid. All of the above indicates that your battery should be charged and that that is not the problem here, unless your grid fails a lot or if you are switching off the grid connection to the infini permanently or at night perhaps - please let us know if you have the infini connected to the grid permanently and if the grid is available most of the time. The only other reason why it might trip as you said when the grid fails is because it supplies a load of more than 3 KW while the grid is available and when the grid fails the inverter is overloaded and trips.
August 6, 20169 yr Author grid is connected permanently but here pakistan we ve energy problems.electricity went off after one hrs for one hours. thanx for suggestion i ve changed the bty cutoff voltages
August 20, 20169 yr Author hi as per ur advise i ve attached a 3kva trickle charger for my 750ahc 24x 2v cells bank.now iwant to change AC charging amp,i am using infini 3kw plus, setting is as.it says bypass with AC charging /not understand.using\ 18x250w kingdom panel 24x2v 750ahc SEC japan batteries bank 3kwplus infini inverter
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