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Nairaland Forum / Entertainment / TV/Movies / Satellite TV Technology / Solar Energy, A Complement To FTA (2294483 Views)
UPS Back-up, Also A Complement To FTA / FTA Frequency / Cctv Installation A Complement To Fta And Solar Energy (2) (3) (4)
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Re: Solar Energy, A Complement To FTA by mctfopt: 8:58am On Jul 04, 2020 |
futurenix:You are most welcome. |
Re: Solar Energy, A Complement To FTA by ojtech8291: 9:37am On Jul 04, 2020 |
ojeysky:As you can see is to the battery terminals. It is hooked at the battery terminals on the Inverter instead of running the cable from the CC down to the batteries, I stopped at the height of the Inverter. Did I lose anything from the panels to charge the battery? |
Re: Solar Energy, A Complement To FTA by ojeysky(m): 9:46am On Jul 04, 2020 |
ojtech8291: Maybe you need to do some labeling on the drawing. What I see from the diagram is that output of CC goes on to the output of the inverter battery terminal (on the inverter), and I was suggesting that it will be better you take it to the battery terminal instead as we don't know the ratings of that inverter battery terminal (which will be practically serving as bus bar for your CC) and we don't know how it will react to current from the CC directly hitting the bus bar. As to losing current, possibly a little depending on how much current you will be pushing on the cable between inverter and battery 1 Like |
Re: Solar Energy, A Complement To FTA by ojtech8291: 10:27am On Jul 04, 2020 |
ojeysky:I will amend it seems affecting the battery charging. Thank you. |
Re: Solar Energy, A Complement To FTA by ceaser: 10:30am On Jul 04, 2020 |
Firstly, the fact that the BMS LVD feature always sets in implies that the battery is experiencing some abuse from the user. For your pal, by the time the BMS LVD triggers, battery voltage is likely at 21.6v (2.7v per cell). It is better not to run in below 24v or at worst 23.8v (2.7v per cell). That way, he may be able to get a high cycle of use at that DoD. Note that even at that his 21.6v DoD, he may still be able to get some 6 years of use, but with 24v he nears some 10 years. Ditto increased years for DoD greater than 24v. Frequently deep discharging the LFP will make the cells to quickly get out of balance even though a BMS is present and the long term effect of that if not corrected is that some cells in the pack get stressed more than the others, them rapid degeneration. Secondly, there are LFP assemblers that give the option of installing a switch on the enclosure that you can press to do the reset. But if you choose that option, you risk losing the warranty on the pack because to that assembler, that means potential abuse which voids warranty. Thirdly, your friend has another option of waking up the BMS - charging with generator. Solar input may not push in enough initial current to kick-start the BMS, but an external AC charger will surely do. Finally, that battery should not be habitually discharged below 24v to get your max cycle of use outta it. He can get an external LVD device to control the battery output to the inverter or if he can afford, get an extra LFP type to share the work with the existing one (connected in parallel). mctfopt: 1 Like |
Re: Solar Energy, A Complement To FTA by ceaser: 11:06am On Jul 04, 2020 |
ojtech8291: Perhaps with an appropriately sized busbar, that your circuit diagram will be feasible. 1 Like |
Re: Solar Energy, A Complement To FTA by ojeysky(m): 12:35pm On Jul 04, 2020 |
ceaser: Well said, the option of kickstarting with utility/Gen always work, it could also be that just 1 cell is running low so while how to restart the battery is resolved, he needs to be sure that the cells are well balanced as well. My inverter highest LVD is 24v (one of the few flaws of MPP) I just rely on my BMV alarm instead which is set to 25.5v 1 Like |
Re: Solar Energy, A Complement To FTA by mctfopt: 2:15pm On Jul 04, 2020 |
ceaser: BMS trips at 25v. Battery may be a little undersized for the project. Secondly, there are LFP assemblers that give the option of installing a switch on the enclosure that you can press to do the reset. But if you choose that option, you risk losing the warranty on the pack because to that assembler, that means potential abuse which voids warranty. A switch involves someone being physically present at location. A situation which is unfortunate as that can't happen. Thirdly, your friend has another option of waking up the BMS - charging with generator. Solar input may not push in enough initial current to kick-start the BMS, but an external AC charger will surely do. Strictly off-grid project. No gen in location nor any plans to put one in yet. Finally, that battery should not be habitually discharged below 24v to get your max cycle of use outta it. He can get an external LVD device to control the battery output to the inverter or if he can afford, get an extra LFP type to share the work with the existing one (connected in parallel). Thank you very much for your input. It is super appreciated. |
Re: Solar Energy, A Complement To FTA by ojeysky(m): 3:17pm On Jul 04, 2020 |
mctfopt: You may need to open that battery, it's most likely a cell went as low as 2.7v you need to balance the cells of those batteries Bro |
Re: Solar Energy, A Complement To FTA by spartacus11(m): 4:20pm On Jul 04, 2020 |
ceaser: Do you still recommend this pure sine wave inverter, i need a pure sine wave majorly bcus of my home theater i hate that sounds it makes on a modified since wave. Hope its wave is truly pure and will work well for home theater |
Re: Solar Energy, A Complement To FTA by harizonal123(m): 4:25pm On Jul 04, 2020 |
Pls I have a 60A mppt Cc and I'm about to buy 6 solar panels of the spec. below. I would like to know the best way to connect the the panels together. Series , parallel or both?
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Re: Solar Energy, A Complement To FTA by mank1234(m): 5:11pm On Jul 04, 2020 |
harizonal123: You need to specify the voltage rating of your cc and your inverter. Total number of panels in series connection will be such that the total Voc of the series panels will be between those 2 figures. Your inverter voltage times 60A will determine maximum total wattage of panel it can take without wasting power or getting damaged. 1 Like |
Re: Solar Energy, A Complement To FTA by Penuelseun(m): 5:18pm On Jul 04, 2020 |
spartacus11:Bought one this week, no inbuilt charger but psw, rated 600w from a guy in Lagos. Very energy 2 Likes
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Re: Solar Energy, A Complement To FTA by mahkanjuh: 5:34pm On Jul 04, 2020 |
Penuelseun: Pls, is this truly a pure sine wave inverter? 1 Like |
Re: Solar Energy, A Complement To FTA by ojeysky(m): 5:41pm On Jul 04, 2020 |
ojeysky: An update on status of the accessories that are still available |
Re: Solar Energy, A Complement To FTA by ojeysky(m): 5:45pm On Jul 04, 2020 |
Need a 12v 1kva hybrid, any suggestion on a good one? |
Re: Solar Energy, A Complement To FTA by harizonal123(m): 5:57pm On Jul 04, 2020 |
mank1234:Inverter is 24v
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Re: Solar Energy, A Complement To FTA by Penuelseun(m): 6:05pm On Jul 04, 2020 |
mahkanjuh:Yes it is |
Re: Solar Energy, A Complement To FTA by mank1234(m): 7:42pm On Jul 04, 2020 |
harizonal123: Go with 3s2p or 2s3p. Edit: 260w * 6 = 1560W. Your cc puts max PV power at 1440W, you need to read the manual to know if and how it handles the excess, though you'll rarely (or never) reach 100% production. 1 Like |
Re: Solar Energy, A Complement To FTA by ojtech8291: 7:55pm On Jul 04, 2020 |
harizonal123:Your CC has several rooms for connections. 1 Like |
Re: Solar Energy, A Complement To FTA by spartacus11(m): 7:55pm On Jul 04, 2020 |
Penuelseun: How much did u get this for please |
Re: Solar Energy, A Complement To FTA by ojtech8291: 7:59pm On Jul 04, 2020 |
mank1234:The two days sun made my cc to lose memory oh... Because of excess. Just do 4 panels for your 24V setup. |
Re: Solar Energy, A Complement To FTA by earthrealm(m): 8:24pm On Jul 04, 2020 |
harizonal123: YOU can do 3s2p, over sizing is allowed..upto 20%, its the Voc, you should be careful not to exceed ...am running 2kw panel on a 24v inverter. 60amps epsolar cc, for years now. pls note; the size of your inverter has no bearing on the panels you intend to connect, only the CC has that much power to dictate that 1 Like |
Re: Solar Energy, A Complement To FTA by harizonal123(m): 8:53pm On Jul 04, 2020 |
earthrealm: How about connecting all six in parallel? Is there any implications |
Re: Solar Energy, A Complement To FTA by mank1234(m): 9:35pm On Jul 04, 2020 |
earthrealm: Voltage of the inverter does. A 12v inverter will do half of what a 24v inverter will allow. 24v inverter will allow half of what a 58v inverter will. |
Re: Solar Energy, A Complement To FTA by emyfine08: 10:27pm On Jul 04, 2020 |
Hello house what is the best cc for 5kva inverter 24v and how many panel for the setup |
Re: Solar Energy, A Complement To FTA by cypha(m): 5:12am On Jul 05, 2020 |
Your battery bank size will determine the number of panels needed , and the number of panels will determine the size of the CC emyfine08: 1 Like |
Re: Solar Energy, A Complement To FTA by babniyen(m): 7:09am On Jul 05, 2020 |
earthrealm:I have a similar set up and I just added a dispay to my CC. I would like to know what your daily readings are cos I don't understand mine. My panels are 250W connected 2S 4P. Please can someone explain what the readings should be for a good install. |
Re: Solar Energy, A Complement To FTA by kadorzy(m): 7:45am On Jul 05, 2020 |
babniyen: let's see the particular readings your don't understand? better still share images of the readings 1 Like |
Re: Solar Energy, A Complement To FTA by ceaser: 9:23am On Jul 05, 2020 |
spartacus11: The inverter is a true PSW. And a good one too. If AC power is good, it charges well (20A charger I think). It has a lot of battery, load and output info on the display, but unlike some in its category, there is no way to turn the various displays on the screen off. |
Re: Solar Energy, A Complement To FTA by ceaser: 9:26am On Jul 05, 2020 |
harizonal123: Hmmm. The familiar PowMr MPPT. Did you take delivery of this pre-covid? Cos I got two units stuck in shipping till now. |
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