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Nairaland Forum / Entertainment / TV/Movies / Satellite TV Technology / Solar Energy, A Complement To FTA (2277367 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 Saipro(m): 8:20am On Nov 25, 2017 |
NiyiOmoIyunade:My kind of guy! The very reason I recently devolved 2 banks from 48V to 24V recently, including the one I use at home. Well, I use 250W x 12 PV panels so strings of 2, 3 or 4 are possible. Against routine principles, I upped my PV strings from 3 in series to 4 in series (logic says devolving from 48V to 24V banks should allow reducing strings from 3 to 2). Why did I do that? I'll post motivation, observation, inference and conclusion later. Right now, I can tell you my CC wakes earlier and sleeps only as the sun is going down. Of course it runs hotter as the fan keeps buzzing. Will solve that soon. 1 Like |
Re: Solar Energy, A Complement To FTA by Saipro(m): 8:46am On Nov 25, 2017 |
makavele: Use the specs in the sheets as guidelines. Adopt them when and where possible. Get a CC with temperature compensation (most do that now) and choose a mid-point charge voltage for smaller batteries (golf cart types) or the upper limit for tall batteries (L16 and similar). Be ready to spend on distilled water. Or use the lower setpoint and hawk over SG drifts for about 3 months, singling out and charging weaker ones, all the while monitoring cabling and corrosion. The you can go to bed. The choice is yours. If you're using SMF/AGM, get it right the first time and pray all goes well. Same for lithium |
Re: Solar Energy, A Complement To FTA by Saipro(m): 8:49am On Nov 25, 2017 |
pranil: Was gonna make a post on this seemingly tedious issue but seeing you've put it to rest, all is well. For those in doubt, install a shunt with a dispaly/readout and your doubts would be put to rest. |
Re: Solar Energy, A Complement To FTA by durodee(m): 10:09pm On Nov 25, 2017 |
kiekie1: Price? 1 Like |
Re: Solar Energy, A Complement To FTA by DMerciful(m): 10:13pm On Nov 25, 2017 |
Sorry to say but this is not mppt. I have opened it up,it doesn't have the xteristic toroidal coil or inductor ![]() NoMoreTrolling: 1 Like |
Re: Solar Energy, A Complement To FTA by DMerciful(m): 10:26pm On Nov 25, 2017 |
Mank1234 is right. The battery sees 10A. I have a meter installed in mine and I see this in reality makavele:
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Re: Solar Energy, A Complement To FTA by DMerciful(m): 10:29pm On Nov 25, 2017 |
With this I know if net my battery is charging esp when loads are connected during solar charging[kquote author=makavele post=62625690] I do not like guesswork. Please place an ammeter between charge controller and battery bank; and let us know what you get, Then place between battery bank and inverter and let us know what you get too . . before you do this, please ensure the CC is supplying more than the c10 or c20 current thanks [/quote] |
Re: Solar Energy, A Complement To FTA by DMerciful(m): 10:42pm On Nov 25, 2017 |
I am beginning to think 24v should be the standard battery connection. From observation anything above 24v whether series or series- parallel is a problem..... 48v system is esp prone to premature battery failures bigrovar: 1 Like |
Re: Solar Energy, A Complement To FTA by kiekie1(m): 11:34pm On Nov 25, 2017 |
durodee: Hello Sir , I will keep you posted on the current price .. Cheer's 1 Like |
Re: Solar Energy, A Complement To FTA by NoMoreTrolling: 6:28am On Nov 26, 2017 |
DMerciful: chai! all these useless contractors selling crap. Well it is to wait for a couple of months before I buy another one personally. I will let the bastard know sha ![]() |
Re: Solar Energy, A Complement To FTA by zeestone99(m): 8:00am On Nov 26, 2017 |
NoMoreTrolling: Jst try and read through previous pages, diff controllers v been discussed. U can mk a choice from dem. from the reliable Chinese brands to Usa brands etc. Here r a few you cud choose from when ready Epsolar, fangpusen, Tristar, midnite classic, victron etc You can contact me for purchase when ready... |
Re: Solar Energy, A Complement To FTA by NoMoreTrolling: 8:14am On Nov 26, 2017 |
zeestone99: No problem Zee and thanks for the troubleshooting. Will hopefully get the EPsolar from you or another dealer here in a couple months. 1 Like |
Re: Solar Energy, A Complement To FTA by Jamzig1(m): 8:38am On Nov 26, 2017 |
Good day house, I have a question What's the most efficient way to prevent the use of high energy consumption loads. For instance, There is a socket outlet which I don't want to supply more than a certain watt (at most to charge a laptop which is about 40-60W) and charge phones or to be used for devices not exceeding 80-100W instantaneously. Would a 1Amp AC Breaker work? What other options are viable? Thanks |
Re: Solar Energy, A Complement To FTA by kiekie1(m): 1:30pm On Nov 26, 2017 |
Jamzig1: Hello, try using the AC breaker as an overload trigger for that particular socket and u must manually reset .. Cheer's 2 Likes |
Re: Solar Energy, A Complement To FTA by Jamzig1(m): 1:39pm On Nov 26, 2017 |
kiekie1:Thanks, are there AC breakers that can protect such low current draw? (Theoretically speaking) My Laptop Adapter is rated 1.8A AC... Meaning I would need something like a 2A AC breaker... Are such available in the market? 1 Like |
Re: Solar Energy, A Complement To FTA by kiekie1(m): 1:44pm On Nov 26, 2017 |
Jamzig1: Yes ooo , you just reminded me of years ago I usually use miniature AC breakers.. It comes in smaller shapes like the type you see on few devices or even smaller .. (2-5 trip amps) .. I will try search my lab to see if I can lay my hands on some . what's app me with my num below! cheers Smartcell global services 081-350-319-51 |
Re: Solar Energy, A Complement To FTA by NiyiOmoIyunade(m): 1:52pm On Nov 26, 2017 |
A 1Amp AC Breaker or Fuse would work BUT 1 AC Amp is approximately 240watts and therein lies the problem - a 1Amp breaker is rated to carry a 1Amp/240Watt load indefinitely without stress - it would only trip at best at 2 to 3 times its rated capacity e.g if you plugged an iron or heating element. So with a 1Amp breaker, you would have exceeded your target load limit of 100w several times before it would trip. So you need like a 0.5Amp AC breaker which would be rated around 120watts which is closer to the load limit you want to impose. AC Breaker is prefered over a fuse because you can reset and reuse it several times whereas a fuse is single use, once it opens/burns you need to put in a replacement - which bring another problem! Location!!! You want to place the breaker in a place where you can easily reset it as you don't want to be opening up your AC Panel/Distribution Board anytime you wanna reset the breaker so you place it in a easy to access place ![]() A smart kid or other member of your household would quickly know "where Daddy presses to reset the breaker" and its only a matter of time before they figure out how to bypass it or hurt themselves while playing with it!!! In the end breakers and fuses were designed to protect your WIRES/CABLES and not equipment/loads - they would only trip/open minimum around 2 to 3 times their rated capacity. . GFCI type breakers are designed to protect people but I don't see how you can use them in this load limiting scenario. If you can lay hands on a 'type B' AC breaker for this current limiting exercise then all the better I would say. Jamzig1: 2 Likes |
Re: Solar Energy, A Complement To FTA by Jamzig1(m): 3:46pm On Nov 26, 2017 |
NiyiOmoIyunade:Thanks for the illustrative response Sir. Another challenge is that a Laptop Adapter for instance (which is the most important load in mind) is rated 100-240V ~ 1.8A for a 65W power... This means it doesn't draw exactly 230/240V which is the reason why the current is a bit higher (1.8A)... I know 1.8A is the Max current draw... If we are to go by 65W/240V = 0.27A. My question now is, which current should one look out for, is it the max rated current(1.8A) or the calculated current from P=IV (0.27A)? |
Re: Solar Energy, A Complement To FTA by GeorgeD1(m): 6:35pm On Nov 26, 2017 |
DMerciful: none of the batteries in my 48v battery bank setup has failed prematurely - yet and this is going 5yrs and still counting. my first setup of only 4pcs 200ah batteries went 7yrs before i changed them out. i have a feeling these ones will surpass that milestone if their present superb performance is anything to go by. |
Re: Solar Energy, A Complement To FTA by makavele: 7:05pm On Nov 26, 2017 |
GeorgeD1: You can say that again . . batteries, if adequately pampered; will last a great deal be it a 12V ; 24V, 48V, 96V, or 100000000V setup; Doesn't matter |
Re: Solar Energy, A Complement To FTA by NiyiOmoIyunade(m): 7:22pm On Nov 26, 2017 |
Amps can never be taken in isolation but rather you must ask the question "at what voltage" and are these AC amps or DC amps? Then you convert the amps to watts so you have a constant base to work off My laptop power supply reads INPUT > 100-240v~1.5A OUTPUT > 20v~4.5A The INPUT ratings are AC ratings and equipment manufacturers are required to list the MAX amperage the equipment will draw under load - in this case it is 100volts * 1.5Amps = 150watts The OUTPUT side is a DC reading so 20volts * 4.5Amps = 90watts. I can relate 150watts max power draw on the AC side to a 90watts DC output - a tad inefficient but plausible given the operational constraints with such a wide input voltage range. In my case I would go with the AC side/INPUT load of 150watt because that is the load your laptop power supply would present to your inverter or PHCN or Generator - so size your load limiting breaker accordingly bearing in mind the rules I earlier stated - a 240v~1amp AC breaker is rated to carry a roughly 240watt load indefinitely without tripping Jamzig1: |
Re: Solar Energy, A Complement To FTA by Jamzig1(m): 7:31pm On Nov 26, 2017 |
NiyiOmoIyunade:Alright, thanks again... I would continue my quest with the info gathered. |
Re: Solar Energy, A Complement To FTA by NiyiOmoIyunade(m): 8:16pm On Nov 26, 2017 |
You must draw us your battery wiring diagram or show clear pictures of your battery setup. I know you have said before that you have an unorthodox method for your battery configuration. How deeply do you cycle your batteries? GeorgeD1: |
Re: Solar Energy, A Complement To FTA by DMerciful(m): 8:16pm On Nov 26, 2017 |
You use premium stuff ![]() enough solar power to float d batteries most times during day etc GeorgeD1: |
Re: Solar Energy, A Complement To FTA by kiekie1(m): 8:32pm On Nov 26, 2017 |
GeorgeD1: Seconded .. I use same batt bank connection tweak with you but on a 24v 600a agm set-up & it works real good ! Cheers 1 Like |
Re: Solar Energy, A Complement To FTA by earthrealm(m): 8:44pm On Nov 26, 2017 |
GeorgeD1: are your batts fla or smf?..especially the first set that lasted 7yrs. or the current ones. kindly state the make/brand/specs |
Re: Solar Energy, A Complement To FTA by GeorgeD1(m): 10:26pm On Nov 26, 2017 |
NiyiOmoIyunade: my configuration is nothing special. just the normal 48v battery setup connected with equal lengths of cable to a single positive and negative bus bar. then i carry out yearly turn around maintenance by rotating the batteries within the same bank. i seldom cycle my batteries beyond 50% dod. my magnum battery monitor kit makes sure of that. |
Re: Solar Energy, A Complement To FTA by GeorgeD1(m): 10:34pm On Nov 26, 2017 |
earthrealm: zenith 200ah. my batteries have always been agm. both the present ones and the set that lasted 7yrs. unfortunately they are no longer available in the market. 2 Likes |
Re: Solar Energy, A Complement To FTA by DUNKA(m): 10:49pm On Nov 26, 2017 |
GeorgeD1:What happened to Mr. Henry the supplier? |
Re: Solar Energy, A Complement To FTA by dapsyra(m): 11:37pm On Nov 26, 2017 |
I called Zeestone9 on Saturday afternoon and we struck a deal on the proviso that I will get the goods today (Sunday) By 4pm today, I received the goods in Abuja. Thank you Zeestone9 for a job well done. Thumb Up . 6 Likes 1 Share |
Re: Solar Energy, A Complement To FTA by GeorgeD1(m): 7:19am On Nov 27, 2017 |
DUNKA: nothing happened to him. i guess he moved on to other products for business reasons. |
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