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Stats: 1,930,196 members, 3,976,517 topics. Date: Monday, 18 December 2017 at 05:48 PM
|Re: Solar Energy, A Complement To FTA by davodyguy: 10:48am On Jun 13|
Thanks. Before the end of the year, I will upgrade to 24v inverter.
Also, i am very very conservative and my wife laughs at me.
even at full charge now on Power company or Generator, we hardly use up to 100amps per day.
I mean when batteries are fully charged cos i just acquired the two batteries in April, 2017 we only switch on TV, decoder and fan for about 3 hours and go to bed. By the time we wake up and there's electricity, batteries are full again. so daily usage averages 250 watts load for about 5 hours or say out of 400 amps full charge, i use only 100amps and 300amps gets wasted or so.
I just want to go solar so i can explore more out of the 400amps available. I am presently under using the system and electricity at my present place is 18hours out of 24 hours per day.
|Re: Solar Energy, A Complement To FTA by davodyguy: 10:52am On Jun 13|
ok thanks .
But see my response above, do i still need to buy 4 panels? or just stick with my 3 jeje
|Re: Solar Energy, A Complement To FTA by kiekie1: 11:41am On Jun 13|
Keep it up brother .. Jisie ike ! Odighi ofele
|Re: Solar Energy, A Complement To FTA by zeestone99(m): 12:03pm On Jun 13|
Seconded. Ur 400ah needs gud amt of current to charge, do the 2 ×2 config
|Re: Solar Energy, A Complement To FTA by Dam5reey(m): 12:52pm On Jun 13|
Thought you said you have 4 200w panel already..
if not buy 3 check if the Voc on the panel will not exceed 100V when you multiply by 3..
|Re: Solar Energy, A Complement To FTA by pranil(m): 4:12pm On Jun 13|
A Breaker will never trip in enough time to prevent damage to Equipment on Overload !! It is not safe to overload something and depend on breakers - All motors have a separate bimetallic relay which trips incase of overload to protect the motor . The transformers have winding temperature sensors etc. Electronic equipment like inverters have temperature sensing algorithms built in
A circuit breaker essentially protects the cables and equipment overheating causing fire hazard on short circuit . It also prevents overloading of cables not equipment ( DC cables are either rated for 70 DEG or 90 DEG Operating temperature )
See the typical operating curves the most sensitive curve ( Type B) requires 3 times the operating ( nominal current ) to trip in 10 sec anything lower than that the thermal relay is highly inaccurate and modelled to protect cables not equipment e.g.
When It comes to charge controllers ( major ones not sure about Chinese) There is no requirement to protect output for overloading . The charge controller will limit the current to it's max Ampere rating automatically. The breaker is there to protect from short circuit and should be suitably sized above the rated current and below the cable rated value
|Re: Solar Energy, A Complement To FTA by pranil(m): 4:25pm On Jun 13|
I am looking for a 48 V DC 5 KW Diesel Generator normally used in telecom equipment .
Something like this http://www.ascotinternational.com/my-product/product-dc-generator/
Although Acscot seems to have gone bankrupt
Anybody has contacts or seen similar equipment .
Currently I use 3 Phase 7.5 KVA KIpor with 2.5 KW 3 Phase 48 V DC charger to charge my batteries on a rainy day or during nights with heavy load .
The electricity prices start moving upwards It is time to start preparing to go fully off grid
|Re: Solar Energy, A Complement To FTA by efuro(m): 4:27pm On Jun 13|
I fully agree with you,
battery is necessary in a solar setup in Nigeria
unlike developed nations
nice work Dr.
|Re: Solar Energy, A Complement To FTA by pranil(m): 4:49pm On Jun 13|
Nice Perspective . Solar needs more education definitely and a mind set change -
I saw a Victron Energy financing on the AWPS website - Any idea how it will work ? similar to Solyntra ( whole system lease) or only equipment lease
I would not mind leasing quatrro 10 KVA
|Re: Solar Energy, A Complement To FTA by emmaniche: 5:07pm On Jun 13|
Please help me house.
Can a 5Kva inverter support 16X12V/200AH batteires, how long can it take to chargethe whole batteries?
|Re: Solar Energy, A Complement To FTA by emmaniche: 5:09pm On Jun 13|
Please help house.
Can a 5Kva inverter support 16X12V/200AH batteires, how long can it take to chargethe whole batteries?
|Re: Solar Energy, A Complement To FTA by teamsynergy: 7:24pm On Jun 13|
emmaniche:what is the charging current of the inverter
|Re: Solar Energy, A Complement To FTA by chris81964(m): 10:11pm On Jun 13|
kiekie1:Thank you my brother.
|Re: Solar Energy, A Complement To FTA by chris81964(m): 10:13pm On Jun 13|
efuro:Thank you so much.
|Re: Solar Energy, A Complement To FTA by Oshomo12(m): 11:22pm On Jun 13|
emmaniche:Ideally, max number of strings should be 3. If u have a 48v inverter. 1 string will have 4 batteries to make it 48v. So 3 strings in parallel should contain 12 batteries. Others may have a different view though.
What is ur input voltage for the 5kva inverter?
|Re: Solar Energy, A Complement To FTA by anidat77(m): 11:33pm On Jun 13|
finally for more upgrade, 2 x 350watts panels, sundayenergy SDM350 from Solar depot.
Green power rocks
|Re: Solar Energy, A Complement To FTA by Feshizzy(m): 11:47pm On Jun 13|
My brother even if na 200 batteries you wan add no problem,
Based on logistics,
As you see,
Most 5kva inverter na 48v meaning four batteries in series,
So e go be 16/4 which go give you four battery pack.
Meaning say you connection go be 4 x4
My candid advise if you wan use nepa light charge them,
Na to first, you something like a knife switch wein you go fit the use separate each pack for charging and combine them all for usage,
Eh! E possible, but small work go dey am.
Now back to the matter!
Well, for the charging I would advise you get 3 48v 20/30a charger for the extra 3 packs, as the first pack would be having it's charges from the inverter directly,
Charging time with my recommendation would be 8-11 hrs all packs would be full.
This is based on the fact you intend charging with power from the grid,
But for solar setup,
I leave you in the hands of our ogas at the top!
|Re: Solar Energy, A Complement To FTA by Refa: 12:13am On Jun 14|
What size of wire are you using?
Breakers are typically sized primarily based on wire size or amperage capacity of the wire in question. You can be producing 36A, if the wire used to carry this amperage is not rated for 36A, you are going to run into issues. On the other hand, if you wire is rated to carry something bigger than 36A; let's say 60A, you need to rate your breaker to protect your charge controller. Two ways to do this; Surge arrester and a breaker. Just my 2 cents
|Re: Solar Energy, A Complement To FTA by pranil(m): 1:56am On Jun 14|
Feshizzy:Min charge rate for lead acid is c10 which means for four sets you need min 80 amps over 12-14 hours ( assuming round trip efficiency of 75 %)
But please use quality DC isolators like schider not teh knife switches meant for AC application as they can spark and weld the contacts . Solar Depot carries them
The problem with using multiple chargers on the same battery bank will be high DC ripple leading to premature failure of batteries or inverter unless you use quality chargers like victron I would advise getting a larger inverter
The batteries are l also large with 5 KVA ( 4 KW) load also it will take almost 8-9 hours to reach 50 % DOD . If you are really consuming 4 KW continuously I would advise getting a larger inverter as most inverters are most efficient and run much cooler ( longer life) at 50 to 75 % loads
I have seen Prag 8 KVA rated at max 100 amp and new Ipower 5KVA from Zinox rated at 80 amps . ( on Grid chargers built in the inverters )
|Re: Solar Energy, A Complement To FTA by Feshizzy(m): 7:05am On Jun 14|
I doff my hat sir,
But with dc isolators will be mostly used when the batteries want to be charged,
My understanding of such ripples is when a circuit is having different charging source and charged at the same time!
But in this case, the isolators have separated each pack from the rest pack,
Can such ripple still occur?
|Re: Solar Energy, A Complement To FTA by emmaniche: 8:18am On Jun 14|
|Re: Solar Energy, A Complement To FTA by idsolar(m): 9:12am On Jun 14|
from experience, i wl get 5kva 96v. do 2pack of 8batr each. i no like wahala of over-paralleling . shikena
further let inverter have charge capacity 30-40a so within 5-9hrs depending on dod
|Re: Solar Energy, A Complement To FTA by HeartforGod: 10:31am On Jun 14|
I have a little question.
I set my cc to equalise my FLA batteries at 31V and i have 1.5kva 24V luminous inverter connected to the batteries. From my observation, the inverter has float charge voltage of 27.5V
My question is - if am equalising the batteries at 31V using cc and the inverter is powered at the same time (hence it sees the 31V); will this voltage cause any harm to my inverter?
|Re: Solar Energy, A Complement To FTA by earthrealm(m): 11:19am On Jun 14|
if you havenot bought the batteries or inverter...consider getting the 2v/800ah or 6v/800ah batteries if you still want to maintain the 48v setup, or consider getting the 96v 5kva inverter
|Re: Solar Energy, A Complement To FTA by kiekie1: 6:53pm On Jun 14|
He can simply contact me for a clean fairly used 5kva 96v at very affordable price ...
|Re: Solar Energy, A Complement To FTA by pranil(m): 7:37pm On Jun 14|
Not if you are separating them while charging in sets of 4
|Re: Solar Energy, A Complement To FTA by davodyguy: 7:41pm On Jun 14|
|Re: Solar Energy, A Complement To FTA by JUO(m): 6:30am On Jun 15|
JUO:Price will soon go up
|Re: Solar Energy, A Complement To FTA by earthrealm(m): 8:18am On Jun 15|
that is likely too small, what is the distance?.
use the link below to select the correct cable sizing.
bearing in mind we have fake and substandard cables in nigeria, i would also advice you to increase the recommended cable size by 50 to 100%, ie use 16mm where the chart recommends 10mm etc
|Re: Solar Energy, A Complement To FTA by Obascoetubi: 9:48am On Jun 15|
pranil:wat of sukam inverter, that product is long lasting ?
|Re: Solar Energy, A Complement To FTA by JohnKester: 1:47pm On Jun 15|
Can you give more information about the DC-100A-6-100V BATTERY MONITOR. Specs, functionality, installation and possibly pixes.
|Re: Solar Energy, A Complement To FTA by zeestone99(m): 2:51pm On Jun 15|
Just arrived Felicity Solar products.
DC freezer 200liters dc12v/ac 220v - 220k
Dc refrigerator 182liters(136litres fridge,46 litre freezer) - 230k
3.5kva inverter 24v( 35amps charging current) - 160k
5kva inverter 48v ( 30amps charging current) - 200k
7.5kva 48v (40amps chargin current) - 300k
10kva 48v- 370k
1year warranty for Fridge nd freezer, 2 years warranty for inverters.
service center available here in lagos. Hurry now while stock last.
300w mono - 70k
250w mono - 60k
250w poly- 55k
Sukam FLA battery 200ah - 110k
Luminous FLA battery 200ah - 120k
Genus FLA 200ah - out of stock
Genus sealed lead acid battery 200ah - 120k
Luminous 200ah sealed lead acid - 120k
Quanta amaron 200ah - 130k
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