₦airaland Forum

officialfestus:
Update on my 865w indoor and outdoor power station.
Comprising of 90 cells (3.7v 2.6a ~ 9.62w)
Brass Terminals.
12x12 adaptable box.
Wires.
Bms.
3s battery equalizer (balancer).
Switch.
1500va msw sachet inverter.
Handle.
Voltmeter

Note: All parts except Switch and wire were bought from one of us here @tetralogyfallot

Do you capacity test your cells before you assemble them?

jrupa:
Good afternoon Guys, please what the way to clear out error 04 on my felicity 8kva hybrid Inverter

What's the meaning of 04?
Low battery?

gadgetplanetng:
This is my own issue
Summary is the inverter always shows battery voltage higher than what it actually is (the range difference is not consistent) so the inverter thinks the battery is full when its not and doesn't charge.
At first I had to get an external cc but It later worsened to the inverter showing 30+V and then shutting off due to over voltage so it has been in storage for months now.
Online search says its a voltage resistor or something that might be bad.
isolar smv 3kw

Yes that's correct.

There is a short circuit on the resistors at the battery terminal side.

It's a fix you can easily carry out.

I will provide images as soon as I can get hold of it.

It should be something like this.

This is a voltage divider resistor network, that measures the voltage of the Battery input

stuffs2002:
Thanks for your reply. I have already bought the panels for a while because I decided to be buying the materials for my renewable energy bit by bit and I may not be able to return them now.

Pls I would like to know the following:
1) What other danger I am facing aside from losing money.
2) What are the likely parameters of the 4 panels and how can I salvage the situation and I still make use of the panels
3) Should I buy additional panels to make up for the lose of energy as I had already calculated the output of the panels to match the load they will carry.

Use them just like every normal solar panel

Gshems:
Your panel náà fake. It doesn't matter how you connect it. You go get low generation but mppt go give you small leverage Sha. I might be wrong tho

Let him confirm the VOC first.

It might not be fake.

Just to let you people know, there are some solar panels modules, manufactured specifically for pumping machine and others applicance that requires high PV.

There are very rare to find

Obnoxious2001:
Happy new month pals.
The time and moment has come .

So let's take it gradually and slow.
I definitely know folks who will like to carry out their personal repairs will be grateful I started this thread.
(Please feel free to ask and post your problems as well, If e pass my power, I go ask SNR man)

We will be starting with Error #bp
(I have used #the_error_code so it can be easy for you to find them when you search for it on the forum)

#bp = battery not present.
This is caused when the inverter can't recognise the battery it has 2 likely causes

1. When battery has been completely drained (some folks still ignore settings the right low battery voltage for the battery. Some will use lead LVD for lithium)

2. When their is short circuit in the inverter

Let me be defining some terms. To make this log easy to carry newbies who will be learning while following up

1. H-bridge /full fridge
Basically a H-bridge is a type of switching topology that mimics the Shapes of a "H" it is characterised by a high side and a low side.

When we say High side, this section, doesn't receive 0v directly from the ground or negative of the battery..

It "source" is connected to the drain of the Lower side MOSFET.



2. Push pull
this is a very popular topology used in inverters starting from the days of square wave -modified- sine wave (yes some sine wave inverters still uses it)

It consists of a transformer with a 3 terminal primary winding.
12v-0-12v (the transformer has 2 12v windings in 1. It has 0 as the common point)

3. Drivers/buffer
A driver/buffer is simply a power amplifier/amplifications stage that Receives signal from the oscillator circuit and sends it to the MOSFET (the MOSFET bank)

4. Totem pole:
this is an amplifier/type of drive circuit that uses 2 transistors (bjt) to increase current and drive voltage too.

It usually consists of an NPN and PNP transistor.


5. Oscillator:
This simply the part of the circuit that generates the on-off signal that operates the MOSFET bank.

I have included pictures of a H-BRIDGE and totem pole

burnerr:
Wahala, I never even use this thing up to 2 weeks. Any idea what might have caused it?

Wiring.
Overload
Surge

burnerr:
I don de tire at this point. Was using my inverter last night when nepa decided to show small love. See me see problem, I decided to go and recharge meter small. 5mins later I'm perceiving something burning and lo and behold the smell is coming from my setup.

Now I can't use the inverter with the battery together. Unit only supplies power if I'm going through PV/AC input to house, but shows error 09 (bus soft start failed) when I try to use battery.

Please who can assist me with this or knows any verified installer in Uyo to help look into this?

Your inverter has a short circuit, a damaged component.

To fix it, you will need to decommission and send to repair/service centre.

obinna37:
that's good, how do we meet

my contact is in my signature

obinna37:
can it be rectify

Definitely.

obinna37:
I have one that has low ac output voltage,it read 220v on the screen but if you multi meter to check it,it will read 125v

This is more of a feedback problem.

obinna37:
you're doing well,do you repair sachet inverter

Yes I do

Happy new month pals.
The time and moment has come .

So let's take it gradually and slow.
I definitely know folks who will like to carry out their personal repairs will be grateful I started this thread.
(Please feel free to ask and post your problems as well, If e pass my power, I go ask SNR man)

We will be starting with Error #bp
(I have used #the_error_code so it can be easy for you to find them when you search for it on the forum)

#bp = battery not present.
This is caused when the inverter can't recognise the battery it has 2 likely causes

1. When battery has been completely drained (some folks still ignore settings the right low battery voltage for the battery. Some will use lead LVD for lithium)

2. When their is short circuit in the inverter

MONEY247:
Forget the hype...
Forget the wedding jingles....
Marriage will drain you...

Just use her...or use him as much....
But don't marry....

Na you go marry liability

Jabez55:
Can a satchet inverter work with a 4S lithium battery pack with 16.8v capacity. If No, what can be a way out

It can work.
Just make sure you don't charge above 15.92v

Dam5reey1:
Earth Leakage CB, you may read up about it.

am actually asking what he intend using it for in the installation ..

burnerr:
Hi house, great work I've seen being done on this thread.
I'll be needing your help once again.
I finally got the growatt spf 6000es and the growatt hope 5.5l-a1 battery with 6 620W jinko panels.
Time for installation, I reached out to the installer who had first given me a quote that I had procured the main things myself.
Now he sent me a new quote with some things added which weren't in the first quote.
Please could anyone help me go over this quote if it's proper?

What do you need an elcb for?
Or did the installer mean MCCB?

Omo the installer dey vex abeg

fuckboys:
Please i need a good solar installer around satellite town to help uninstall my solar system make some upgrades and install it all in a new location cos I'm moving out.

Location is satellite town amuwo odofin.

Active. How do I reach out?

Back from work and I am pumped up to pen down this amazing experience at work today. The most difficult 09 error i encountered so far

Prior to when I will be updating fault and fixes (I will commence in March) I will love to document This.

Few days back a 3kw hybrid inverter came in for repair, it had error "F09", as usual, we booked it in and followed all necessary procedure..

Fast forward to today, I picked up the inverter after I had a chit chat with the installer about the cause of the failure (obviously the fault was from the installer, but since inverter was under warranty he was very confident to bring it back knowing fully well that we would accept it)

I losed the inverter, did the normal check, found out some MOSFET and IGBT where Fault

Inside my head I was like this Na Moi Moi repair.

I initiated repair process thinking within 1hr it would be done.....

I replaced the high side igbt (this part is responsible for converting the high voltage DC to sine wave AC voltage via a H-bridge arrangements of the igbt)

Replace the battery side MOSFET (this is responsible for converting the battery voltage to high voltage DC which is the. Stored in the bus circuit.) for this particular inverter, it used a centre tap configuration.

I advance to checking resistor, transistor and
All the area bois within the circuit. It was all fine, then I tested the board.

It started normally no sign of failure, then it went completely off. This time around another 5 igbt gone (I had changed 4 earlier) with my MOSFET.

I knew this was not normal so I started suspecting the pwm driver(sg3525 it's response for sending PWM signal to the MOSFET and IGBT for inverting and Charging)

I replaced it and the high side IGBT where okay even after testing...., but the low side was still burning MOSFET out and gives "Error 52" bus voltage low.
A simple transistor driver replacement brought back the invert back on line .

I actually felt reluctant changing it though because it read fine on the board, but since it was not working as expected, I just replaced it and it solved the problem.


This is a quite lengthy, but yes I have fulfilled my obligation to bookmark the most difficult 09 error I have faced about 3hrs of intense brain racking and trouble shooting...

Shout out to my co Engrs whose teasing drew my attention to details I left ....

chris81964:
https://youtube.com/shorts/an46mLoQ6mw?feature=share
Who says that a lady can't be an installer? When you have the Sigenstor it is a breeze. Installation and commissioning in less than 1 hour

Capture her when she dey climb roof .

I was see something .

No shades but I will definitely like to share space with female "active" installer

maklelemakukula:
Thanks for your input. This is my first solar project so I intend to use a well known brand. When it's time for the next one I'll use Valto.
I haven't bought any panels yet but intend to buy 8 615watt jinko panels, will these be sufficient ?

Valto is well known brand .

I Will likely be posting how we repair and carry out troubleshooting of hybrid inverter.
Error 09, Error 52, Error 53, Error 57 etc.

Mind you I am hoping to pen down this fixs so I can get to learn more about fixing this inverters from senior men who are behind the scenes, then also to help lot of DIY/hobbyist carry out repairs too......

Hopefully I stay committed to updating this logbook.

Greetings from this side.

It's been long I updated this logbook, actually there are a lot going on behind the scenes (I have actually left Warri and am in Lagos) but my absence has not put any of my activities to halt.

Contractor has been handling our activities in warri, though blessed and emeretus have migrated to Lagos and cross River.

But it is what it is.

So recently, I picked up an after sale role with one of the solar companies in Lagos (I don't want to mention name) but I honestly must confess 9-5pm tuff die , but am in to enjoy the ride and experience that it comes with....

So if you are into repairs hybrid inverters you are all welcome to this space...

I will try to update you all from time to time.

Stay tuned.

ajabani4allah:
Good day all, pls can anyone suggest a good solar Training center in Lagos where one can learn more of practical solar installation? Thanks

follow person dey go site for like 3months.

That's all unless you need a certification.

Penuelseun:
Experienced something like this a while back on my old inverter, the idle consumption went up to 3x of the normal wattage while the inverter ran warmer than usual, took it to arena only to discover that it was the output filter capacitor that was the culprit

I was about to say this.
Caps or burden resistors might be culprit if there are no theft

Edrizz:
When one of ur support teams was asked about the best way to protect sako inverters from lightning/thunder strike since it interferes with dish signal amidst other problem if connected to an earth rod, the support responded that lightning/thunder strike is a natural phenomenon n can't be prevented. I was just dumbfounded with his reply, like mehn, people dey this world oooo there are engineers n there are enginaira

He go lie for you?
.

Meanwhile if you have issues with Sako inverter or battery, you can take it to festac their head office. I think their timeline is 72hrs from when booked unless Na big problem Naim be 1week.

dollarnaira:
Wetin b d voltage of d camera?

Na AC 220v input

dollarnaira:
500w is around 15k or more.
Use this as a bench market.

If u see the psw pls let me know.

Bought one for experiment last year. Couldn't power tv and fans but worked well for charging and lightnings.

I wan use this one power camera ptz

Who has idea how much that portable car inverter cost? Or how much is 250w inverter?

officialfestus:
how do you tweak your inverter to accept 16.8v?

If you use a programmable inverter it's easy, just re-adjust your configuration.

If you can't ,find the maximum voltage yuyr inverter can take, and make sure it doesn't go more than that when it charges(give tolerance oh)

But basically that is it

Am currently using a famicare hF inverter all is good

I thing hybrid inverter will be very ideal of you are a big users.

dollarnaira:
Try 4s of lithium ion
But 4s LifePO4 will work well.

From experience 4s all the way.

I have been building some experiment around it.
Very efficient compared to 3s.

The only observation for now is battery tend to go out of balance when it gets to around 10.5 (I know it's below its cutoff)

skywalker95:
Good evening. Please, I've had my tubular battery for about 3 months now and it goes from bulk charging to float. I've never seen it do equalization. Is there a way to do this manually or will my charge controller do this when the battery needs it?

Your system has no fault why worry?

Too much information don dey cause harm .


On your controller, the only thing you can Change or modify for the equalisation is the time it should take