₦airaland Forum

fuckboys:
only the battery terminals are shocking not the battery case.

Earthing the case didn’t stop the terminals from shocking.

Use your tester touch these peeled places first

fuckboys:
only the battery terminals are shocking not the battery casing.

The reason that body is not shocking is that white paint. You can peel a small portion of the paint and test with your tester, it will light.

fuckboys:
I ran a wire from the negative battery terminal of the inverter to the earth terminal of the inverter.

Look for other part of the body of the battery to connect the earth. Don't use the terminals direct.

You can lose one of the bolts used for screwing that back cover, wind the wire round it and screw it back tightly,

The reason that body is not shocking is that white paint. You can peel a small portion of the paint and test with your tester, it will light.

fuckboys:
I just did further troubleshooting and found out that when I put the change over to neutral the terminals stop shocking even with the inverter still on.

Is it coming from the house or something?

Try run a separate earthing for your inverter.


I have seen a situation where the earth of a house is returning current to the inverter.

Dam5reey:
You can design your own as you wish, I didn't post for you to Judge.

You don vex na joke o

Dam5reey:
Another installation delivered in Ajah..

Baba why you dangle that breaker na

mctfopt:
Sako actually replaced a unit after two failed repair attempts. I didn't even ask for a replacement; they just sent a brand-new one.

That's what I expect from them, they keep repairing without looking at the cause.

Obnoxious2001:
What model is the inverter?

Also for replacement, you might have to pay some money.

1yr warranty doesn't mean you wouldn't pay service charges

That their new 4.2kva with the screen at the lower part of the inverter.

cutefy:
This is the issue with some sellers.
They could have just replaced the inverter with a new one instead of tossing you about. I would have asked you to drop the name of the seller for the sake reference.

It's a shop here in Ibadan, though I won't blame the seller because if replacement is to occur, it should be from Sako.

Good morning house, there is this issue I am having with a client's Sako 4.2kva inverter.

This inverter was bought on Saturday 23 May 2026, it was installed for the customer on Monday 25 May 2026. The second day Tuesday, I was called in the afternoon that the inverter suddenly went dead.

My connection was 4 jinko 620w panels connected in series. I went to pick it up from the customer and returned to the seller for fixing. According to him, he sent it to Sako service center in Alaba.

I had to install a stop gap of welion 4.2kva inverter so the man won't feel offended while this issue is being resolved. The welion has been working fine with no issues so far.

After a month, I was called to come pick it up only for me to realise I was sent another person's inverter, The one I brought is still new because it was used for just one day. I returned it to the seller that this is not mine.

After like 3 weeks mine was returned looking so rough, with scratches all over it, I was not happy seeing it (brand new inverter for that matter).

I took it home, decided to test it in my shop before taking it to the customer only to detect it wasn't charging the battery. I had to return it with note "mppt not charging properly" so that the engineers will know what to work on.

After like 6 weeks and several calls, this inverter was returned, I decided to test it in my shop again. I intend to test it for 2 weeks, then decide whether I should continue using it myself and leaving the stop gap for the customer because the Sako was already looking so rough with many scratches, the client won't like it.

After three days of usage, I came to shop one morning around 11am only for me to meet this inverter dead again. My battery already entered protection mode "faild to release scp". This inverter would have also killed the battery if not for good bms.

I have returned it again.
They claimed maybe it is my connection, I told them no, because the two places this inverter has developed fault so far (client's house and my shop) have Inverters of the same specs working there with no issues.
They have taken it to the service center again.

My fear now is what is the assurance that after repairs, this issue still won't come up?

Does sako replace Inverters for customers? If yes, how can I go about it?

Willy2025:
At least 230k if you don't have any lecturing experience or 330k if you are in the cadre of Lecturer 1

Too poor for a university teacher

aloyt:
Pls I need expert advise on the type of solar panels i can use for this inverter with the spec below. It's an SRNE HF-2430S80-H but my concern is that the Max PV input Current is 13A and I intend to get at least 4qty of 615W Jinko panels (to be in series) but the Max. input current for those panels exceed that of the inverter rating. I want to know and get an expert advice if this will be an issue for the inverter or if I need to go lower to say 590W panels which has about 13.36A input current.
I need advice from people here who may have the knowledge on this. And to know also if the max current for the solar panel rated is ever attained in real life. I want to be sure it's safe to use these panels with these ratings with my SRNE inverter with these specs.
I'll appreciate response from OGs here. Thanks

Current is drawn based on what your inverter needs at a particular point in time. Even though your panel is able to supply a maximum current of 15amp, your inverter will only be able to draw a maximum of 13amp from it.

Na voc you suppose dey afraid of make you no exceed am

Don't forget, your panels will only be able to supply that maximum current when all favorable conditions are met.

Drgreatone:
This quote is for 1 carport abi the 3?
When u say moveable, what do u mean seeing as the standing pipes are in the ground.
Thanks

Yes for 1 carport of 4 panels.

Anytime I want to remove them, I will first cut those binding wires used in holding the panels, offload the panels, then unscrew the bolts and nuts one by one.

After every thing is done, na only those two standing poles go remain. I will dig the concrete again with that my big iron rod and uproot the pipe.

After removing, I will fill and cement the floor. You no go know self say something dey there before.

I will move to a new location I want and install it there.

twinskenny:
welldone

you should have used H channel iron instead of the round pipe...

Those ones will be too heavy for me to carry.

Every coupling there was done by me alone, from digging, to concrete to mounting.
The only time I called people to help was when putting the panels on it.

Unfaized:
Love this your car port. How much did it cost you in total to construct and how does it hold up against very strong winds?

@the bolded

During heavy wind, you will see it shaking at the top but don't worry nothing go happen provided you maintained that depth and do proper concrete.

When I first installed it, I was busy then, I asked one guy to help me do the binding of the panels to the metal.

When I came back I did not even bother to check it, one day rain wanted to fall, the wind was heavy, na so I hear gbaaaa on my roof, I came out to check what it was, breeze don carry one panel throway for my roof. I was lucky it was on the roof it threw it. If it had been on the floor. The panel for don go.
When I checked why it happened, I noticed the guy used just one tiny binding wire to hold the panel in one place instead of at least 6 places.

I jejely go carry my thing commot for roof come do proper binding myself.

I made provision for 8 binding places but I only use 6. Four places is okay too provided you use thick binding wire.

Unfaized:
Love this your car port. How much did it cost you in total to construct and how does it hold up against very strong winds?

Roughly 200k

A. The stands 2½ by 2mm galvanised pipe (2 pieces) 29,500 x 2 = 59,000
You can also use a thicker pipe.

B. 2½ by 6mm angle = 26.5k x 3 = 79,500 (one will be cut into two to stay on each pipe, the remaining two will link the two standing pipes)

C. 1½ by 4mm angle = 8.5k x 3 = 25.5k

D. Logistics

E. Workmanship

F. I used size 17 bolts and nuts

**I cut 400cm from the pipe, between 70 to 80cm will go into the ground, the remaining 320 to 330cm will be above the ground.

**most panels are 114cm wide. Four of them will be 456cm. I cut this 456cm from the two 2½ by 6mm angle.


Attached is what I used for digging. It helped me dig faster and less stressful.

ajabani4allah:
Pls can you take the picture of the carport and send and which part of the country are you in?

Ibadan.

@Bassdow
I made the carport in such a way that it is detachable.

When I was still using 4 panels, I erected it at the side of the building, when I noticed towards 4pm the building was shading it, I uprooted it and moved it to the front, before adding two more stands.

Landlords will even prefer this to placing panels on their roof.

chadbasin:
Please which brands of panels are they?

Jinko Bifacial

ajabani4allah:
This is damn crazy!!! I have never seen people generate this much on PV, this is over 90% of the total PV energy

I dey see above 95% here wella o.

Take for instance at 10:45am
See what I am generating from my home set up: string 1 = (4x615w), string 2 = (4x620w) and (4x625w) all Bifacial jinko panels on a carport.

Now imagine what I will generate around 12:30pm to 1:30pm

If you get money, just do solar carport. Na the best. All my panels are flat. No tilting at all.

Paschal007:
This is highly impressive. I have
2 x 550w jinko
2 x 575 ja solar
Max I get is 1.5kw
Normal 1.3kw

I always felt it should generate more. When I add the extra 2 590w, it might get to 2.1kw. Not good enough I suppose

The generation is poor. Though, power generation depends on so many factors.

Panels work best on nearly flat surfaces.

oloet:
At what system voltage are generating this? What is the orientation of your panels?

At 365v. It's a shop, the roof is nearly flat.

chadbasin:
This is quite amazing!
Please what time was "peak sunlight"?

My peak period here is between 12:30 - 1:30pm

bassdow:
According to you, you have

2pcs of 550w = 1,100w,
2pcs of 585w = 1,170w
2pcs of 590w = 1,180w
2pcs of 615w = 1,230w

Total Power expected = Approximately 4,680w
Actual Power harvested = Approximately 2,800w

I was at the shop yesterday, though it was cloudy but I was able to take small video at peak sunlight. Generation was hovering between 4.29 to 4.31kw

I can't upload the video here, but here is a sc

cc:
Paschal007
Gshems

bassdow:
According to you, you have

2pcs of 550w = 1,100w,
2pcs of 585w = 1,170w
2pcs of 590w = 1,180w
2pcs of 615w = 1,230w

Total Power expected = Approximately 4,680w
Actual Power harvested = Approximately 2,800w

Remove the 2pcs of 615. That 2.8 na for the first 6

Paschal007:
Interesting, what's your generation at peak sun hours?

Mostly 2.8kw. Maximum I have seen is 3.1kw.
With the first 6 panels o.

I have not really observed for the new 615 added because of the cloudy weather these days

hoover420:
Oh well, I’ll wait till next month. If I can’t find it, I’ll end up doing the aforementioned. Thanks

Oga buy your 590w and use.

In my shop set up, I have two 550w, two 585w and two 590w (all Monofacial) connected in series and I don't have any issues at all.

Recently I wanted to add two more panels, I searched for 590w fouani no get, na so I buy 615w join am.

This is how it works.
In series, the same current pass through but different voltages. The smaller panels will limit the current of the flowing through the panels.

At the same current, the 590w panel will generate more watts than the 535w because it has higher voltage.


Though there will be a reduction in efficiency of the higher panels which I am OK with.

Before recommending a jinko 700w+ panels for someone, please ask them for their inverter max pv current o. The panel has a high current, and will most likely exceed 18a of these inverters.

And here in Ibadan, na cloudy sky we woke up to

litaninja:
You stil dey dribble go back my brother

Lolz. No mind me

HeavenlyBang:
Unfortunately.



Haven't used one. They seem well-built, though.

OK thanks

Machiny:
sure. Have been using their 3kw transformer less for sometime now. No regret in my choice so far.

OK thanks.