Trippledots:
Shop on AliExpress using a GTBank Dollar Mastercard and for every purchase over $80, get $30 off. T&Cs Apply.

I just got this from GTB. Has anyone tried it?

NiyiOmoIyunade:
What SPDs are you buying?....

The 1 meter rule is to achieve best chance of protection in case of an induced surge by placing the SPD as close to the protected device as possible - 1 meter is a lot of space in an electrical enclosure and I see no trouble meeting it.

If especially exposed or at risk, you can do tiered protection cascading several SPDs all the way from possible point of fault incidence to protected device.

mank1234:


Upsizing cable does not offer any advantage when it comes to transient voltage (lightening). The key is to ensure that cable length is short. Like in the diagram below L1+L2+L3 should be less than 50cm.

To achieve above, SPD should be close to load branches in the DB, the earth wire between the SPD and the DB should be very short, free of other wires and not coiled (should be straight).

If the above is not possible, he should opt for type 3 SPD at the point the device is located..

https://www.electrical-installation.org/enwiki/Connection_of_Surge_Protection_Device

https://www.electrical-installation.org/enwiki/Cabling_rules_of_Surge_Protection_Device

Trippledots:
Shop on AliExpress using a GTBank Dollar Mastercard and for every purchase over $80, get $30 off. T&Cs Apply.

I just got this from GTB. Has anyone tried it?

NiyiOmoIyunade:
Dear Sir,

You are not incorrect about cable gauges & transient voltages but there are so many factors to consider in the matter of surge protection.

I have reproduced below key portions of my original response to the OP - the binding constraint is that the SPD installation was not part of original design so except for redoing the whole main panel, 50cm or 1meter rules required by the various standards would be hard to achieve - thus the reco was use the SPDs in a tiered fashion.

About cable gauges, see attached an excerpt from the resource you shared on minimum conductor sizing for limiting voltage rise and short circuit current withstand

AndroBlaze:


Well if my years of experience of living with LA in the real world is not testing them, I wonder what is.

Anyway, as the goal here is for all of us to learn the easy way (through experience prefeably than experiments that are costly)... I am sharing another video with more "English" and more expensive LA batteries used apparently....but its still the same findings which is consistent with what we LA users live with and know.

Not as easy and simple to follow as the other video, but still points to the same thing, which if I can use Ojesky's word,"LA batteries will not perform magic" no matter how expensive.

So I still stand by the claim earlier, "you cannot get 120A from a 100AH LA for 20 mins or anything close to that in real life use".

Obviously we await your test or any other test debunking this.


https://www.youtube.com/watch?v=iy3hga_P5YY&feature=youtu.be

IYGEAL:


You're still going to fund it with personally sourced dollars which you would most likely get at black market rate.

samnaija:


This is the wiring diagram, apart from the battery balancers ,other minor wiring to ensure a well balanced bank . These was provided by @mctrinity a while back.

samir101ng:


These are all solar equipment sellers with a good online presence. You can also add https://www.solardepotng.com/ to that list. But i have personally never had any dealings with them. And some of them have had issues that had been reported here already on this platform. Therefore, you transact at your own risks. In my previous posts, the resellers i posted were authorized dealers who have signed agreements with the global brands to be their representatives in Nigeria so they carry a bit more weight in my opinion. Also, i highly advise you visit a sellers office and check out availability and price of their products. A lot of these sellers don't update their websites and contact numbers to reflect realities. Therefore, go to there office and deal face to face is my honest opinion.

Warranty and fault repairs should also be discussed extensively before purchase to avoid issues later on.

TechGeek777:


Thanks for the provision of the diagram for future reference.

Although yours is a complex system. My expected setup for now is 24v 1600va luminous inverter with two 150ah/200ah luminous tubular batteries.

Will I be needing this battery balancer for my anticipated 24v setup?

saint2ace:



The bolded is quite unnecessary as verifiable facts has proven that lithium batteries can withstand higher amps draws than Lead Acid, it's that simple.

I have personally done a 120a draw on a 12v 100ah with a 200a BMS slapped on it.

While we express our views based on whatever scenerio, let's do it with a pinch of decorum. Cheers.....

toyeoye:
Good evening chairmen! I've been immersed in research lately as I try and get the best set-up for my house. I've read a lot about the importance of micro inverters but I've not come across anyone mention it here.

Is this not vital to longevity of anyone using solar or it's too costly or complex?

Thanks guys

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samnaija:


Micro inverters are not common in Nigeria. Besides hybrid inverter has taken over Nigeria basically does the same converts dc to ac .

samnaija:


Get a balancer, it always necessary.

TechGeek777:


Okay bro, thanks. What does the balancer do?

samnaija:


Just like the names says, it redistribute charges between batteries, hence if a battery is getting more charge than the other, the balancer ensures all batteries are close to each other in charge or almost close in voltages.