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Is it time to donate my eyes to science? Being that I've now seen everything





Need an inverter? I'm selling my 24v Sukam after upgrading to 48v and solar. View as here:

https://www.nairaland.com/4196905/used-sukam-1.5kva-inverter-35k

Cute pic!


Need an inverter? Get a Sukam for just 35k in Lagos.

https://www.nairaland.com/4196905/used-sukam-1.5kva-inverter-35k

Selling my used Sukam 24v, 1.5kva inverter for 35k.

Call 08171942851.

Reason for sale, upgrade!!

Reason for sale, Upgrade

Get a Sukam 1.4kva PURE SINE WAVE inverter for your energy needs.

Perfect working condition

Manufacturer: Sukam
Model: 1400VA FALCON
Input Voltage: 24v
Output Voltage: 220V PURE SINE WAVE
Inverter and UPS mode
Removable fused protection on the outside (you can buy these for N200, if you ever blow a fuse)
10amp and 15amp charging options

Call 0817-194-2851.

Location: lekki/V.I

Dam5reey:
It like you have more information, than the installer, just check the MPPT controller specs sheet or snap the picture and upload here..

PV output depends on the load/battery SOC that's basic...

If your battery bank is fully charged.. your load will draw current from the Panels, and if the load is not there then there is no harm charge controller know what to do, even PWM

Check if temperature sensor is connected to battery sometimes it's limit the maximum output, based on battery temperature settings.

Maximum PV output depends on
1. Sun intensity... Cloud factor
2. Temperature of the Panels
3. Note that there is difference between daylight and sun hours
Panels gets maximum current of up to 80- 100% by 11 to 1pm

In Lagos, the sun sets at 6:40pm. So if you go outside by 6:15pm, there would still be light outside, but obviously not sunlight.

However, at 6:00pm, my C.C is showing 0amps. At least gimme 1amp na

I will note if there is any difference after the installer reconfigures the setup.

mank1234:
You can limit maximum current some MPPT controller like MorningStar Tristar can output by changing the configuration. He might have done that to save your battery from excessive gassing due to too high charging current. 200AH battery can be charged at 60A but it's not ideal. 20A (C10) rate is optimum.

If you size output base on load, don't you think you risk damaging your battery when the anticipated load are not in use and sunshine is optimum?

Discuss with him if he limited it. If he did ask him to add another 200AH of battery and change the settings to btw 40 and 50A maximum.

This is what I'm trying to wrap my head around.

Are you saying charge controllers aren't smart enough to regulate battery charge current while simultaneously providing load current?

That seems weird. I though if I needed 30 DC amps for a load, the C.C would provide the 30amps as long as the panels were capable of providing that power.

So in essence, the battery is not really being over charged, but the current is simply flowing to the load via the inverter. Still learning though, I will ask him about any kind of limit.

kiekie1:
Something might be wrong somwer in your set up.. Send pictures of the mppt , wire guages in/out of the mppt .. 3×3 PV configuration is always best for 48v inverter systems ...Did you use a combiner box & mc4 connectors or he looped all the PV cables together ? If a combiner box was used, trouble shooting of PV array strings is always easier .. My mobile number is 24hours available for further enquiries ! Cheers

NOTE: In my set-up, its ground mounted due to the weak asbestos roofing sheet on the bungalow I intended using and trouble shooting "measuring individual panel voc/vmp/isc" is very easy for me.. In my storey building jobs,I always make use of improvised affordable combiner box with DC breakers.. Pending on mppt, mine stops charging -sleeps before 7pm most days ... See attached pics below ;

Thank you K.k, bigrovar, zeestone99 for your input regarding the setup.

I will call the contractor back to see if he can change the setup to 3X3 instead. I just didn't want to stand my ground then, because as they say, no one knows everything. So I figured I'd trust the guy that has done 100s of installs.

Here is the charge controller he bought, the first one he bought spoilt, so he had to replace it with this one.

The max PV voltage is usually like 60 something, but as soon as you load it, the pv voltage drops down to battery voltage, around 51-55v depending on the weather. It just doesn't seem right for MPPT.

Thanks again guys, may this thread and all our endeavors continue to blossom!

zeestone99:
Give us spec of ur setup sir, hw many panels is being used, wattage?, wher did u place panels, roof mount, ground mount, wht direction southern, Eastern etc

hey, also when he was connecting the panels, he said he was going to do a 2 series/ parallel string.

okay, i think they were 250 watt panels, so he must have done, 2 series by 4 parallel.

The thing is, when he showed me the VOC for the panels, it was like 60 something volts, we are using a 48v inverter.

I told him that since we are installing an MPPT controller, he should do 3 series by 3 parallel connection, even if it means that we have to buy an additional panel, but he said that having a high VOC could damage the controller, even if the controller is rated for high VOC. He said on some sunny days, the VOC could exceed rated VOC and damage the controller.

I dunno, but I thought the whole point of having an MPPT controller was so you could get very high VOCs and step them down, so that on cloudy days, you would still make some power.

What time does your solar setup stop producing power? Is it still a bit light outside, or does yours stop only when its completely dark outside?

kiekie1:
Hello, if your location is within Lagos state , we can help you in troubleshooting .

Contact:
Smartcell global services
081-350-319-51

Thanks Kiekie, but everything is still under warranty. 2 years for the battery and 10 years for the panels.

So i will be calling him back, once i get some feedback on here.

zeestone99:
Give us spec of ur setup sir, hw many panels is being used, wattage?, wher did u place panels, roof mount, ground mount, wht direction southern, Eastern etc

Think they are 10 200 watt panels, roof mounted on a one storey building. Unfortunately I don't know the direction.

Everything is still under warranty, so I can call the guy back if something is wrong somewhere.

He was saying that, solar amps harvested is dependent on the battery AH rating. i.e for a 200ah rating, he was saying the charge controller would never output more than 20amps (10% of 200AH), to preserve the life of the battery.

I on the other hand was arguing that the solar amps harvested should be depended on the load. So if I have a load that requires say 30amps, then it doesn't matter if my battery bank is 200ah. If the panels can supply that 30amps, then they should.

I don't know who is right here, me or him.

Hey guys, good morning, please can someone tell me if we were duped.

We installed 2,000 watts worth of solar in our house, running on a 48v inverter and I have never seen more than 20amps being generated no matter the level of sun luminosity.

I even loaded a 1,600 watt vacuum cleaner one sunny afternoon to try and force as much amps as I could out of the panels, but still couldn't get above 1,000watts. Could they have mixed defective panels with good ones

Also, I don't get any power after 6pm. Is that how solar panels work I thought they kept generating power until it is COMPLETELY DARK outside.

Sukam 24volt 1.5kva inverter used for sale, 25k.

Call 08171942851

S.A

...

Used Sukam 1.5kva pure sine wave inverter for sale 25k.

Call 08171942851.

Great deal.

Think we're good

dont forget oranges

https://www.weightlossresources.co.uk/img/e/eat-the-rainbow-yellow.jpg


Need a tv, selling a used 42 inch lcd for 50k, lekki, interested check out:

https://www.nairaland.com/4126113/42-inch-phillips-tv-sale

what's the difference between this and a 2018 camry

https://icdn-8.motor1.com/images/mgl/XNPk6/s1/2018-toyota-camry-detroit-2017.jpg

btw, I'm selling a used 42 inch LCD tv for 50k in lekki, if interested, check it out here:

https://www.nairaland.com/4126113/42-inch-phillips-tv-sale

Available

Good morning, happy Sunday

DennisClark:
Ul get it tmrow. Hope it reflects

Lol, this is soo cryptic

Bump

lionshare:
how about 40k?

call me

Elpacino481:
is that desktop icons i'm seeing on the screen? how did you connect the Pc to the tv?

I used an HDMI cord from the lappy to the tv

toluxa1:
You believe?

Lol, it's an LCD.

Model no:- 42PFL3403/98

buy today and get a discount

awesome deal

S.A