₦airaland Forum

Since we are talking TVs.

I have a modern smart TV without analog audio outputs just digital audio outputs but I have a vintage amplifier.

I want to pump the audio from the TV into the amplifier because I prefer the audio that comes from the amplifier to that coming from the TV.

The issue is that to do that I need a Digital Audio Converter (DAC) to act as a go-between my TV and my amplifier.

If anyone else has this kind of setup which DAC are you using?

Did you get it locally or did you import it?

Trying to determine what works and why before biting the bullet

Your thoughts?

It's on the home page today

brightk:
How do you over provision? Apart from increasing battery backup days, what else

https://www.youtube.com/watch?v=h4iOs2taeZM

The over provisioning or oversizing begins with solar panels ( in technical speak PVs which is short for photo voltaic cells)

This video should help

toyeoye:
This is how I try
1. Reduce Energy Usage
2. Performance Monitoring
3. Use gen as backup to charge batteries as last resort

In addition to the above, over privisioning helps (in plain english more solar panels than your actual consumption, a larger array will generate more than a smaller array in difficult weather) and efficient equipment (MPPT instead of PWM)

mctfopt:
Ok, that point makes sense. This thread is so rich in knowledge. Keep sharing.

Something similar has been said about Felicity, don't run it at PV max, it will throw an error

It was thanks to this thread

seunpinky:
Good day, I have responded to your email. Woke up to several mails from Nairalanders and I have responded to each.

Busy day, I finally got to respond to it.

Thank you

@seunpinky please reply your mail

Juror:
The Powmr beats the Homaya but I understand you're just marketing.

End user actually, not in the business.

The Powmr MPPT 60 beats the Homaya M1000, I think I made that clear.

I just wanted to make it clear that it is dangerous to attempt to run it at its limit when the manufacturer itself says so.

I also made the point that if running it at 160V PV will kill it, it is unfair that they have not told us the safe maximum PV.

That any potential user needs to have that information before deciding and along the way it breaks

mctfopt:
That's almost 3x the cost of PowMr. With that much difference in cost, if it doesn't have more cpabilities, then it doesn't make sense to get it.

Agreed.

The Powmr is good for someone who is just starting his journey in solar and wants to keep entry costs low while learning the ropes

But my reason for comparing was, how does this compare with what I already have?

Should I take the plunge?

Does the cost benefit ratio make sense?

Finally having benefitted immensely from the wealth of knowledge on this thread, I was obligated to pay it forward

I will do a similar thing between the 1.5KVA Homaya Home that I already have and the new 3 kW/4 kW/6kW Homaya Pro that was introduced sometime in July 2022

seunpinky:
Pls send me a mail on
Yuppiesdynasty@gmail.com

Thank you very much.

mctfopt:
What's the cost difference?

I have used the Powmr for a while. But I think the Homaya is better documented and has more features and capabilities.

Based on the specs alone, I think it is a good buy

seunpinky:
Thanks for the advise, will dust my files and hit the ground running.

Can you be reached via your nairaland profile?

If no, how else can I connect with you?

Thank you.

gadgetplanetng:
I bought it on the Schneider store on Konga https:///merchant/205934 on the 8th of February.

I first contacted ccc.nigeria@schneider-electric.com which directed me to solarsupport-emea@schneider-electric.com who directed me to First Options in Port Harcourt.

Someone from First Options came to pick it up, at first they said it's the fan that's the issue and they'd change it, then the next morning called and told me it's the board claiming it's lightening damage which is strange as the ceepro inverter which was swapped out has been there almost 3 years and still works perfectly.

I don't stay where it is so I'm not sure what went wrong.

I believe my main issues are having to start repairing the inverter so soon when the one that was there has never been repaired &having to pay for repairs in less than 2 months

I'd be very glad if you can take it up.

Will reach out to you this weekend to move things one notch up

Yesterday the gods put me in a dungeon and I had to reach out to several of their high priests otherwise I would be out of commission till tomorrow.

Thankfully the several high priests I reached out to were able to save me and put me back in service

So I will complete the rest of the review in picture format

Maximum PV withstanding voltage for Powmr is 160 volts but the company itself warns not to run it at that rate for long because it will break the controller.

So I would say that figure is not to be relied upon

At 200 volts max PV withstanding voltage, Homaya has better capacity.

Homaya Pro M1000 versus Powmr MPPT-60A Charge Controller Solar Review (Specs Only)


Updated to include Powmr MPPT-60A maximum PV withstanding Voltage


Maximum PV withstanding voltage for Powmr is 160 volts but the company itself warns not to run it at that rate for long because it will break the controller.

So I would say that figure is not to be relied upon

At 160 volts maximum PV withstanding voltage, Powmr has better capacity



So you gotta decide between the 100 volts PV reliable hard limit of Homaya or the 160 volts PV unreliable hard limit which do you prefer to bank on?

The other new kid on the block.

I feel like I can be the guinea pig for this.

I had always wondered if they could do 850va and 1500va why could they not scale it up?

Now they have.

they have got 3kva 4kva and 6kva and unlike the former listed above, these can be paralleled to increase output.

@gloriousgbola, do they specs make it a compelling buy?

I am thinking of getting a unit for the office and another for the house

ojesymsym:
Abeg this your source have a replacement board for the 2.4 KVA? I have one that I have been looking at since it became faulty.

I do like the inverter, my experience with it has been good,

Can you share a picture of the board? I will ask but you know how Nigeria works they want to see a picture of the thing you are asking for

gadgetplanetng:
Homaya – Solar Hybrid System 1500VA || AEH-SHI01-1500

I got this for my parents.

The last message I sent them almost a month ago they just ignored.
I expected better from the company I get far better service from unknown China brands.

Port Harcourt.

I have 2 units of the exact same inverter. I have even used it to pump water though I had to turn off other appliances. Not the best use of the inverter I agree but I have had zero issues in the 2 years that I have run them.

That said do you mind sending it to Abuja so it can diagnosed and possibly repaired here?

When you said you sent them messages? Do you mind sending those messages along with the proof of purchase? Was it via the Schneider website or the reseller you bought from?

Who did you buy from?

My distributor is a big name Schneider shop.

I just put a call to them to find out if they would not mnd taking a look at the unit. They said they do not mind.

Do you have an idea what happened that caused it to go bad?

You said it is still under warranty. Do you have proof of purchase? If yes, I would like to help you take up the matter.

Peterlove11:
Unbelievable standby consumption: >3w
How genuine is this.

Yet to buy it.

Infact just learned of it, will compare and contrast it with a more popular unit on sale on these streets soon.

Although I am considering adding it to one of the items I want to buy

gadgetplanetng:
I'd share my experience with the Schneider Homaya soon

Got one in February from their official store.

By March it developed a fault, fan is on non-stop and if utility power comes in, it goes off and doesn't charge batteries.

Contacted their support and they're telling me to pay 45k for a less than 2 month old inverter.

China brands it seems have better support these days

Inverter?
If yes which model to be exact?
Where are you based?

GloriousGbola:
low res file chief. i'm struggling to read it

Original post modified, try again

There is something new under the sun

What are your thoughts?

Jefferyzz:
We can't say accessories n logistics is expensive.
But that MCBs ehn, of all the people wey don dey call me that their system get this error and that. I have not seen 1 MCB wey b known name.
1 even use AC MCB for panels, some don't even use MCB n SPD at all. We know aw expensive Schneider is, some1 here mentioned getting 1 for 23k thereabout, can't remember d amount, but Dem dey sell cheap ones for alaba (3-4k) wey dey carry various names, u go see some wey Dem put Schneider ontop sef. I no this cause av bought 1 b4.
The recent system I checked had Schneider DC MCB connect with d panel, MCB got burnt n didn't even flip. Charge controller didn't spoil.
Since list of all items dey, buy better items, not leave everything to installer hand.

Gotta be fake brother.

Depending on how I disconnect legit devices from extension cords, mine even trips off

Where I stay there has been a noticable reduction in the number of cars on the road as a result of the fuel subsidy policy.

But what concerns this sub-forum is the threat by electricity workers to go on strike, they call it a total strike until the policy is reversed. It is on the front page of this forum.

There is a likelihood that petrol may also be affected if NUPENG joins.

My point?

Be sure that your alternative power system can provide you with the minimum power (lighting and maybe also refridgeration, etc, your mileage may vary) you need to run what matters most to you before this strike happens if it ever happens.

queenfav:
Good morning Ogas,pls see how our 320w panels was installed.Also the Charge controller VOC is 150.We couldn't get for the battery,but will attach the battery info.

So what do you advise?Was it well installed to give optimal charge? Also can we add the extra panels..if yes,how many pcs? Thanks a lot.

There are 4 parts to the puzzle of your installation.

You have provided one max rated power of your charge controller: 3000 Watts

You have provided the max PV open circuit voltage: 150 Volts

You have not provided the Optimal Operating Voltage/VOC (Vmp) of your panels and you have not indicated if the panels are all the same.

You have not provided the Optimal Operating Current(Imp) of your panels

The guy for whom I provided calculations yesterday provided these details, which I have reposted in brackets (Vmp=32.2, I= 9.31A)

If we do not have these key pieces of information, no one can magically answer your questions

That said best practice dictates that you dedicated a different Charge Controller for each set of panels facing a different direction of the sun, cause if you don't to borrow someone's words:

"it would be like having a hose and somewhere in the middle you squeeze it off or kink it. Water can't flow because of the obstruction and not enough water can get out of the way for more water to follow" or put differently

"If all the panels are connected together, the weakest panel is the one that will govern the amount of power available. It would be like having a hose with a kink in it. Doesn't matter what the capacity capability is of the all the panels if one of them is holding the whole system back.
This is why using 2 strings of panels is better for the different times of day when the sun hits the east most or the west most sides of the roof."


But we wil still need those figures to determine if you are using your charge controller properly or your panels are sub-optimal panels.

obitobe:
please how did you arrive at this

I used the calculator attached here.

You could even do 3 in series that is one string made up of 3 panels which would produce 96 Volts and 9.31 Amperes,

then connect the 3 sets of 3 in series in parallel which would produce 96 Volts and 27.93 Amperes which would still be within the limits of tolerance of your charge controller

Assuming my maths is correct

obitobe:
[/b]Please I need help before things go wrong.[b]

I have a Mppt charger controller of 60A with a Max input voltage of 145V from the panel. Can I connect 9 panels of 300w (Vmp=32.2, I= 9.31A)each to it without having any issues?

My installer wants me to buy additional charge controller

This might help.

Until someone comes up with a better idea

It maybe possible to add 9 panels and use the same charge controller unless you decide to go full serial i.e., all panels wired in series or each spec wired in series then all wired in parallel

adrusa:
You can exceed the power ratings of Charge controllers, but you won't get more than what the controller is rated for. For instance if you have 10KW panels on a controller rated for 5KW, it won't damage the controller but you won't get more than 5KW output. However, as someone pointed out earlier, what will damage your charge controller is exceeding its rated Voc. That is what you can not exceed.

Thank you I have beenconsidering an upgrade to my PVs that would not break my CC pending a full scale upgrade of PVs, CCs and batteries and I have been debating the need to stay within both limits.

Will concentrate on staying within the rated VOC only.

Thanks for sharing

Please what is the experience like running a charge controller on the very edge of its capabilities?

Let me explain.

According to the poster immediately above, the max rated power of her charge controller is 3000 watts in a 48 volts setup while the max PV open circuit voltage is 150 volts.

Has anyone run their charge controller at the max rated charge power and max PV open circuit voltage?

Is it recommended? or should I allow for some headroom?

If yes by what factor?

Thanks.

megacontrol:
Hello guys,

Please who sells kitchen appliances here at good rate?
I need a couple of microwave, oven, cooker unit and extractor hood for finishing stage.

Kindly post your products with prices or send a link if you have a dedicated thread here.

Referral to offline vendors also welcome from anyone. Location is Lagos.

Thanks

As a bargain hunter, I have been able to get good deals from mitosshoppers dot com.

I am based in Abuja and they are based in Lagos, but I was able to source gadgets from them cheaper than if I went to shops in Abuja.

Highly recommend him.

transferred huge sums and they never defaulted

If I paid early enough, I got same day delivery.

Hollawayn05:
Thanks sir
The charge controller shows above 13amps and 200watt at peak period and how do I configure my cc to give 14.7V?

It should not be less than 450 watts.

Something is seriously wrong.

Please take action before your batteries suffer irreversible harm

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