₦airaland Forum

Uniquewise:
It's the circuit breaker.
Two pole type

Valto:
cheapest tubular is about 340k, highest about 450k
my professionally coupled 12v 105ah 1,344kwh lithium battery with 100A Bluetooth bms is 350k to 400k, with over 10 to 12yrs lifespan.

DaniellaDokubo:
Good morning fellow enthusiasts,

I'm curious if anyone has experience with back feeding excess PV harvest into their grid supply. My inverter has this feature, which allows me to do so. I'm wondering if it's possible for my prepaid meter to roll backwards, enabling me to buy back some units from the grid.

I appreciate your prompt response and wish you all a fantastic week ahead.

Best regards,

Gshems:
Decided to go with a 300watt panel but does any one know if I can get a mppt charge controller less that 40k?

brightk:
abeg na... this one u de introduce fourier series. E remain laplace transform for u to add.abeg allow us to manage our inverters in peace

durodee:
Saw that at a place I visited recently. The panel was part of panels connected in series in an high voltage setup ( close to 200 panels total in that installation). Due to some reasons( I don't know the full story) the instal had to be dismantled.
This panel had a through and through meltdown!!

durodee:
And the panel died............

vta2008:
They are always breathing oh. Na when breeze blow I dey close windows because I no get maid wey go clean house everyday. 🤷🏾‍♂️

DearAminu:
Pls someone should help me fix my
MBC Action
MBC Max
MBC 2
MBC 3
MBC Bollywood

They were all normal and showing but now they've stop showing.

FEGEITOK:
As usual you have been that resource person in electrical matters that I have to reference.

Thank you for your time.

By the way, you may recall our discussion about internet awhile back. I just subscribed to a dedicated 2Mbps service from Glo. Costs N41,000.00 monthly. Data cap is 1TB. If you exhaust the 1 TB before the 30 days is up, they dial you down to 512kbps but the internet does not shut down.

Should be activated by the end of the week.

Will tell you if it is worth the cost.

oweniwe:
Na so nah.

Person go buy

1. Display Monitor
2. Tower
3. Keyboard
4. Mouse
5. External Speakers
6. External Webcam
7. UPS to serve as battery

When everything dey one laptop.

Except person dey run server that require multiple disks, why not just buy a laptop?

funshyboi:
Hello guys, please which of this wires should I connect to each other ? Is it blue with blue or otherwise.

Don’t mind my question I’m Just a DIY person.

My second question is my battery charger which is tagged “A” in the picture uploaded with the following rating
INPUT:AC100V-240V~2.0A
MAX 47-63Hz,
OUTPUT:14.6V, 5.0A
is faulty.

I got a laptop charger which is tagged “B” in the picture uploaded with following rating
INPUT:AC100V-240V~1.6A
MAX 50-60Hz,
OUTPUT:18.5V, 3.5A

Will it charge the battery efficienciently

Thank you for your response

mank1234:
A voltage drop of 220v to 160v in a wire length is close to 30% voltage drop. Who designs such a system? Even a 1.5mm2 cable won't give that except the distance is far - that's not to say you should use 1.5mm2 for your pump.

There are several online tools to estimate voltage drop at specific distance and load current with different sizes of wire. Checkout one here https://www.calculator.net/voltage-drop-calculator.html?necmaterial=copper&necwiresize=0&necconduit=pvc&necpf=0.85&material=copper&wiresize=0.4066&resistance=1.2&resistanceunit=okm&voltage=220&phase=ac&noofconductor=1&distance=20&distanceunit=meters&amperes=11&x=83&y=22&ctype=nec

Edit: I just went back to check distance to his pump. It's not >55m. Least he should use to satisfy voltage drop of less than 5% is 4mm2. In my side pump depth rarely reach 10m depth.

TechGeek777:
Finally did the test today with "CLAMP METER DT3266F"
Surge: 16.64amp * 230v = 3,827.2w
Continues draw: 8.2amp * 230 = 1,886w

The reduction in consumption is as a result of stronger/better wire used (2.5mm² Comester)

Below is the initial test done in Q1 of this year.
Max Surge = 19amp * 230v = 4,370w
Continues draw = 11amp * 230v = 2,530w

aviona:
This is a bit confusing for me.

Electric wires have a resistance per foot; the smaller the wire, the greater the resistance. When an electric current flows through a wire with less resistance, the greater the current flow in proportion to the voltage, according to Ohm's law.

The larger diameter of the bigger wire should offer more area for electrons to move through the circuit easier than smaller wires, hence greater current.

In view of the above, is your increase in wire size to a larger 2.5mm², not supposed to result to an increase in current flow?
Rather, yours decreased by 2.8amps (i.e from 11amp to 8.2amp on normal draw).

Just my thoughts though.

Jefferyzz:
U need to av 1.5hp submersible to know aw much power they consume.
Cause 1.5hp dey consume around 2kw for normal light n I'm sure it will b Abit higher for inverter.

Golgota:
It depends on the make of the pumping machine. My 1.5hp submersible consumes around 2.2kw steady though that is not a problem for my 5kva inverter but I won't try it in 3.5kva

Jefferyzz:
This morning for ibadan

Jefferyzz:
It been a while I bought DC cables in alaba, but I no they are Abit cheaper compared to prices of Ogunpa here in Ibadan. They sell 10mm 2k per yard here.

essegis:


Na 52 cells oo. But I want to use 48 to make 3 banks. 4 extra was bought just in case some get issue during transport, abi na so them dey advice. I sha no see anyone with issue so I don get 4 spare be that. I go use them build 12v bank for my pikin in school.

As for the charging, I only have one of those chargers and with children running around everywhere I no trust doing them in bits oo. Let me just keep all of them in one place for now. As for spreading out the poles for balanced charging I would have loved to do that but you know say those chargers don't come with long wires. Make I dey manage am as I see now my brother. Thanks.

As for shipping I no really know who do am. I went through one of my colleagues that does China a lot. They charged shipping and clearing in one package sha.

Trippledots:
Is bolded referring to peak instantaneous yield or total yield for a day? Because the later should be in watt-hour units. I just want it to be clear for readers.

zeestone99:
Until u hit ur roof with 5kw and manage to harvest 2.5kw. you then find out u just occupying space on ur roof.

osayuwamwen:
I want to buy flooded tabular battery what is the best and most reliable brand for 220ah and also 1.5kva or 1.7kva inverter 12v?

durodee:
My guy cool down. You have bought already, mistake or no mistake, time will tell and you would have learnt from it. Nobody in this forum was born with super knowledge and don't let anybody make you feel you have killed someone. We all learnt one way or the other. We all have our failures in this solar journey- trust me, even the gurus here have wetted their pants before.
Use your panels and CC. It will serve , no matter how small
You have

zeestone99:
Just leave them to save money boss.

Someone bought a 300w panel toks for 48k.
He boldly sent me pix he got a good deal, behold they labelled 200w panel for him lol. He didn't even get 250w. They gave him 200w as 300w.
They don't want us to bill them, They will learn the hard way.