₦airaland Forum

olopan:
Would consider this next time but considering the location space, the present arrangement done we noticed this too can work without any issue

Thanks for the insight.

Good job bro

NiyiOmoIyunade:
The best way to think of this device is as an add on at your CC or breaker terminals - current is not passing through the device in normal operations but in a case of surge or fault or sudden voltage rise the device operates to present a very low resistance and shunt the surge to earth.

What you should do is get suitable wire around 6mm2 minimum and cut to suitable lengths and wire as below.

Some people wire this at the CC PV+ and PV- but I generally prefer to wire it at the always on side of the DC breaker in case of loose contact or whatever you don't want to be fixing an expensive CC and also better if the fault condition was mostly dealt with before the CC as well

Thank you very much oga niyi. I appreciates. Please can connect the existing earth cable to the device

All frontline equipment e.g panels, CCs, outdoor cables should have a direct path to the buried earth rod - one may create a busbar connected straight to the external earth rod for the purpose of terminating multiple device earth cables.

The idea is to present the least resistance path to earth for faults and surges to flow to - If you use any other point e.g. your DB earth bus, there is a risk that surges could radiate to connected equipment and damage them.

In my house I had 4 rods buried including the LPS and bonded them all together and brought this into the power room with a 25mm2 cable connected to a busbar to which CCs and SPDs and DB earth bus are connected. Most people keep the LPS separate but I had a measured resistance of 2.8ohms at commissioning so I could take the risk.

Now I am at 6.3ohms almost 2 years later - time to refresh the earth install and perhaps separate the LPS just to avoid stories that touch.

The idea behind an equipotential bond is majorly personnel safety not equipment protection!!!

Integratedpower:
Thank you very much oga niyi. I appreciates. Please can connect the existing earth cable to the device

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Good day @NiyiOmoIyunade , what about situation where the earth rod is not close by or non at all. Must it be connected to earth rod?

NiyiOmoIyunade:
The best way to think of this device is as an add on at your CC or breaker terminals - current is not passing through the device in normal operations but in a case of surge or fault or sudden voltage rise the device operates to present a very low resistance and shunt the surge to earth.

What you should do is get suitable wire around 6mm2 minimum and cut to suitable lengths and wire as below.

Some people wire this at the CC PV+ and PV- but I generally prefer to wire it at the always on side of the DC breaker in case of loose contact or whatever you don't want to be fixing an expensive CC and also better if the fault condition was mostly dealt with before the CC as well

It must be connected to a conductor with very low resistance/impedance to ground.

Earth rod, wire mesh, earth mat, buried copper wire, building metal reinforcement (ufer ground), water main (water corporation pipe), metallic frame used to mount water tank are all possibilities either as stand alone or a mix.

Just know that if you use a public utility like water pipe, you may be executing your neighbor a few houses away or some random kid playing around if you have a fault diverted to earth. Of course it can't be traced back to you and you yourself may not even know you electrocuted anybody so no biggie I guess

The goal is to measure resistance 5ohms or less after your earthing is done (some say 25ohms) and be able to maintain this value over the years.

If you don't have a good earth point for faults to go to, please do not install an SPD as you would just be making things worse.

Driving a few rods some 8 to 20 feet down can be done at low cost and small footprint - you do not really need those massive pits that our people like to dig - use a coupler and drive down two or three rods coupled together in one spot, move away thrice the depth of the coupled rods and sink another set and be done with it - judicious choice of soil site for earth rod or soil treatment with enhancement material will ensure permanent results.

Above all measure else you can never tell how good or bad your earth is.

See below a customer with poor earth before and after driving rods down and we did the extra rods in his flower bed without disrupting anything - two coupled rods in the house and another two coupled rods outside.

We met the facility's own earth at 44ohms, we joined it to the estate earth point which was reading 51ohms to get a combined 22ohms - this convinced the customer the benefit of multiple points bonded together - then we drove down additional rods as I explained above and got 5.3ohms - this is in Lekki sandy soil, no treatment or enhancement as the man did not want to ruin his lovely garden so did not permit to dig a hole or even use an auger

ebocoms:
Good day @NiyiOmoIyunade , what about situation where the earth rod is not close by or non at all. Must it be connected to earth rod?

Work hard and live smart just allow d sun do it work dey and nite make una try get dis light for house so dat ur battery bank go dey last

NiyiOmoIyunade:
This is a pretty looking install - I would deal with the dangling comms cable on the left (route through conduit) and also keep the two battery flex/trunk pipes together right until they touch the battery case and veer off to left and right.

From the technical side, I see you have wired the batteries up as the manual said - though a BMS and balancer are in the mix, the laws of physics cannot be defeated - to this end consider using a busbar or taking the negative or positive connection to the inverter from the second battery - in simple terms let the inverter positive cable connect to one battery and the negative cable to the other battery just as you would do for lead acid.

What size of Felicity batteries are those? The shape and form factor look different than I have seen.

I have seen this design with terminals located at the front on Alibaba. Seems to be the 2nd Gen with accurately labelled specs

ojeysky:
That is 3.55v it will definitely get the cells to 100% easily and fast. If you do 3.4v then maybe it won't make the 100% capacity fast enough before the sunlight goes off. A less than 3.4v is what will sure ensure below 100% capacity capacity for Lifepo4. Max I do on my cells is 55v(3.43 per cell) yet it still makes 100% charge most time but I don't want to do less because I need to take advantage of the short sun hours as well

Is it confirmed to be a 16s configuration?

xfay:
Is it confirmed to be a 16s configuration?

Yes for Felicity cells they are 16s

Guys , please recommend a very seasoned/sound installer in Lagos.
I am currently in need of an inverter setup for a 2 bed apartment.
estimated load is at 1kw - 1.2kw.

Apartment came with a few panels, and some cheap inverter installed, will be utilizing installed panels but primary charging source will be PHCN supply.

Looking at having Li ion batteries , with a Hybrid inverter and other necessary equipment for an efficient system.

your advice , recommendations (choice and capacity of equipment ) and referrals (installer) will be greatly appreciated.

Thank You.

bizzle2:
Guys , please recommend a very seasoned/sound installer in Lagos.
I am currently in need of an inverter setup for a 2 bed apartment.
estimated load is at 1kw - 1.2kw.

Apartment came with a few panels, and some cheap inverter installed, will be utilizing installed panels but primary charging source will be PHCN supply.

Looking at having Li ion batteries , with a Hybrid inverter and other necessary equipment for an efficient system.

your advice , recommendations (choice and capacity of equipment ) and referrals (installer) will be greatly appreciated.

Thank You.

Chat me up boss

ojeysky:
I have got 2 brand new BMV 712 with temp sensor for grabs. 125k each

Q/A
Is this the victron BMV 712 with Bluetooth features?
Yes
Is the price negotiable?
No price is firm Sir/Ma
Does the price include shipping?
No it doesn't, but I can waybill to any part of the country at buyer's cost.

Still available

ojeysky:
A few R3 Basic DIY 6.5k for unit price and 6k for multiple. Can flash with tasmota before shipping for those interested

Still available

Onward we move, pray the new month favours us all and bring newer and brighter possibilities of breakthrough.

Happy new month

Happy new month, May this month be filled with unspeakable testimonies, Amen!

Good morning,

Just my opinion but looking at your setup, which I guess is kinda mini
Having that load run off battery will equal a bigger bank or a shorter energy storage usage.

Better running them in the day time when the sun is up.

Growatt 3000W hybrid inverter with remote monitoring feature will be your best bet

Coupled with Pylontech for direct comm with battery and having other accessories installed alongside.

And what size of panels do you have already installed

We'd like to discuss better with you for installation.

bizzle2:
Guys , please recommend a very seasoned/sound installer in Lagos.
I am currently in need of an inverter setup for a 2 bed apartment.
estimated load is at 1kw - 1.2kw.

Apartment came with a few panels, and some cheap inverter installed, will be utilizing installed panels but primary charging source will be PHCN supply.

Looking at having Li ion batteries , with a Hybrid inverter and other necessary equipment for an efficient system.

your advice , recommendations (choice and capacity of equipment ) and referrals (installer) will be greatly appreciated.

Thank You.

olopan:
Good morning,

Just my opinion but looking at your setup, which I guess is kinda mini
Having that load run off battery will equal a bigger bank or a shorter energy storage usage.

Better running them in the day time when the sun is up.

Growatt 3000W hybrid inverter with remote monitoring feature will be your best bet

Coupled with Pylontech for direct comm with battery and having other accessories installed alongside.

And what size of panels do you have already installed

We'd like to discuss better with you for installation.

So the Pylontech battery is better than the likes of Felicity, Yes?

I am looking at a run time of atleast 6 hrs . What battery capacity would suit my need?

The panels came installed in all the apartments I have no idea how many watts they are, will ask the Landlord and get in touch with you.

Are you in Lagos?

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naija company started battery production, who go buy this battery and give us report??

earthrealm:
http://www.mmnltd.com/


naija company started battery production, who go buy this battery and give us report??

Actually there are others.

www.forgobattery.com too is naija!!

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