₦airaland Forum

NiyiOmoIyunade:
Please PM boss.

080811444442 / sales@luminanttechsystems.com

Number not correct, called and the dude that picked up was in a different cloud. Website ain't showing nothing too.

NiyiOmoIyunade:
This is a fairly complicated design question.

Some of the issues you are facing with high idle consumption may be due to how the installation was done vs actual hardware limits or design behaviour on your devices.

My takeaway is that you do not have actual 3 phase loads but rather just need to power all the 3 phases of your house with little to no mods to the existing wiring.

To this end what brand of inverter equipment do you currently have? I am asking about the 3 inverters in parallel that you wish to dump? Do they have an input current control/limit feature? This will allow you to run a weaker supply (aka) Generator without overloading it and maintain no break power to your inverter loads (I am fairly sure your AC and fridge/freezer compressor will thank you for it)

The Deye 3phase inverter idea works but limits you to 4kw per phase at the current inverter size and also the available config options may not meet all your needs. I am trying to see if you could make do with your current existing equipment hence I asked for the brand name.

If you had 3 Victron inverters, you very likely have all you need to build a robust system that meets your needs.

Bros, you understand perfectly what I'm talking about jarre.
I have Felicity 5KW x3.

Abeg where can I buy this Deye 3phase inverter? everywhere I have been, they are selling the single phase models.
I went to another vendor yesterday who has the capacities I want 10kw/12kw 3 phase but with little or no knowledge about what to answer to my questions. and I don't want to pay N2m+ just to try out something and be dissapointed.

While Victron might be a robust machine, I am not fan of systems that you hav to buy so many auxilary devices to acheive all the efizi you desire in your power room. DEYE or MPP Solar are pretty decent machines that doesn't need much aux devices but the problem now is: WHERE TO BUY?
Nigerian dealers go as far as detaching modules from these machines and will sell them to you as addons. Dollar too no let person drink water drop cup. One would simply buy from abroad and have peace.

All being said, no going back on the 3 Phase system,

Abeg who knows where I can buy DEYE 3phase 8kw / 12kw or MPP Solar 10KW / 12Kw?? Abeg make una help a brother.

nnadychuks:
quality response. Thanks … but the appliance is a mini hand sealer that’s rated- 30Watts, 110V in Dc however the machine is 100Wh but 230V in AC. My problem is inverting this 230V in AC to 230DC. I don’t really care about the warranty, I just want it to do it’s work, considering I’ll be using it only during the day

Please clarify and itemize what you intend to achieve so that we can understand you better.

Twostep:
Good evening house, please are there any health hazards putting my inverter set up under the staircase that leads the living room upstairs as attached in picture?

Thanks

You can put the batteries behind that wall if behind it leads outside, drill a hole to pass the battery cables into here, then neatly install your electrical components here.

Second option is to use none fuming batteries. eg: Lithium.

NiyiOmoIyunade:
There is some prework required before you get to 'needing' a 3 phase system.

Do you indeed have 3 phase equipment that will use 3 phase power or you would just like to power your entire house/facility via inverters?

A true grid integrated 3 phase system cannot sync with an incomplete grid - there must be voltage within spec on all 3 phases - you can setup a scheme that drops the grid input (ignore AC/intentional islanding) in case of supply side issues and then the inverter(s) continue feeding the loads with no break.

Perhaps you could describe your system objectives and the loads you wish to power and then people could give you ideas what designs could work.

Thanks for your contributions boss.

The issue is I want to be able to power the entire house without modifying the Electrical Wiring.
My house is wired in 3phase, My Generator is 3 Phase, Nepa is 3 Phase, Now Inverter is Single Phase.
If you use Nepa or Gen to Charge the system, you will be overloading that phase that is feeding into the ineverter.
I built an ATS to convert Nepa 3Phase to 1Phase Feeds this into a 15KVA Stabilizer which then feeds the Inverter and the Inverter feeds the house via a 1phase Looped input 3phase unlooped output contactor' with this method, the gen doesn't charge the inverter but snatches the
load from it once your turn it one. Then once Nepa resumes, it snatches the load from the Gen gives it back to Invereter, turns off the Gen and charges the inverter while the inverter feeds back to the loads. Don't know if this sounds complicated though. Hehehehe

I have tried to Parallel 5KVA x3 Units but I noticed some things that no Inverter Manufacturer has ever mentioned. " The Idle system consumption is 5 Times higher when you parallel inverters" You will notice that your battery keeps depleting faster than normal even without any load connected. I recorded about 400w or more idle system consumption with 3 parallel inverters.
This gave rise to my quest for a single unit 3 Phase inverter.
Secondly, you will have more devices hanging here and there and thus you would have to deal with more heat than usual.

My intended modifications:
Get rid of the complicated ATS and many other things.
Install a 3 Phase Inverter with inbuilt ATS (Deye in my mind, with Grid Input and Gen Input)
or Build or Buy a 2 Source ATS to handle NEPA and GEN Switching before feeding into inverter and the inverter feeds thee house, I would have a bypass swtch incase the inverter decides to breakdown someday..
This setup will declutter my power room pretty much.

One would ask, " why do you still need Nepa or Gen you should be going off grid?"
the truth is, during rain season, only solar panels don't have enough sun hours to fully charge these our huge battery banks we are deploying. Except we may have to deploy more solar panels which is space dependent.

Please advice me.

Good evening all, I hope everyone had a great day?

So I went on a 3 Phase Inverter quest today.

Most unfortunately most people haven't done a single unit 3 phase setup, most have done 3 units 3phase parallel setup..

And my questions went like:
What happens when you have a source phase failure?

Most people haven't tried it or withnessed it because they were always deploying to clients that have 3 phase prewired environments and have all 3 phases always avialable.

To be quiet honest, I was dissappointed at some responses I got.

Now am back here to seek professional advise.

Has anyone done a 3 phase grid tie setup?
If yes, what happens when a phase or 2 phases fails?
Has anyone tried to power all 3 phase with a the same single phase? Most 3phase inverters I saw today were labelled 230v/400v input. and yet the dealers could not tell me if I choose to ignore the 400v part, what will happen.

We live in a country where grid phase drops are incessant. Please i need honest and first hand experience responses.

Thanks all.

hayo15:
Hello,

I have tried to scan through this thread to see if there is any response that answers my question.. But, I haven't found any yet.. It's very long thread.. Wished I had seen it before setting up some of my installations..

First setup,

- I have a 220ah Neptune tubular battery
- A 30A PWM charge controller
- I use a 6mm aluminum DC Cable
- I use two 200w panels (connected in parallel)
- I use a 2000w Souer power inverter
The setup is less than 2 months old..

The problem is;

I use this system to run
- My freezer (thermocool chest inverter freezer -115w)
- A few akt 12w bulbs
- Basic charging (laptop, phones)
- And, blender
Just basic household activities..

Recently, when I started loading freezer on this setup.. I found out that my battery runs down very fast.. Of course, I know I should increase the battery.. But, this feels a little odd.. I can't even use my freezer for up to 6hrs.. Battery rarely gets to full charge..

This is the question I need answering -
I am looking at getting
- One extra 220ah Neptune tubular battery
- Three 200w panels
- and, probably a 60A mppt CC
Is this a recommend upgrade that would work ? (Will it have a significant increase in my uptime)


Second setup..

- I have a 3.5kva 24v felicity hybrid inverter..
2 400w panels
- Two 200ah amaron quanta batteries
- I used an independent PWM charge controller (the setup engineer recommended this)

Client plans upgrading this later to add

- Two more 200ah amaron quanta batteries
- Two 400w panels

Question is,

Is this also a recommended upgrade for longer uptime?

For the 1st setup:
Is this on off grid setup?
If Yes, Even after you add 1 more battery, it will not serve you (bitter truth).
If No, Do you have a means of charging the system when the sun is down?
If yes, up your panels to 4 in total,
discard the old one battery and grab 2 new ones
chnage from PWM to MPPT.
Do something about your alluminium cables please. I never hear am before.

For the 2nd Setup:
the proposed upgrade is fine but change from PWM to MPPT or use the inbuilt MPPT on the Inverter.

I need a 3 Phase 10KVA Inverter Please.

Updates please.

Jefferyzz:
@prince3

oops, my bad.

Prince3:
You guys are yet to help me out with the right inverter I should purchase for my inverter journey. Am a newbie here.
I like studying and making lot of inquiries before starting any personal project even though am not interested in diy. I will call a professional to do my installations once every is bought completely

Do your energy report and post here to get best recommendations

Jefferyzz:
You didn't state ur load

Do your energy report and post here to get best recommendations

ojeysky:
Ekiti, do come to DM, number in signature

Ok, BRB

ojeysky:
Your preferred choice of delivery at your own cost

Where are you sending from?

Good morning people.

Abeg I need a 3 Phase Inverter, with atleast 2 MPPT Inbuit. 8KVA, 10KVA or 12KVA model.

ojeysky:
https://www.nairaland.com/390522/solar-energy-complement-fta/1270#117199749

I want a unit in Abuja. how can I get it?

ojeysky:
I still have these battery monitors available for anyone interested. No change in price

Please post pictures and functions

mctfopt:
I have two 5kw Growatt connected to single 30kwh lithium bank. Why did I do that? To increase the capacity of the inverter and also so it can handle the number of solar panels in play.

I guess you are talking about a Parallel Setup.

You can post Pictures so that we can understand ourselves better.

FEGEITOK:
Does anyone here have several inverters connected to the same battery bank? If yes, why did you set it up that way?

Are you talking about a Parallel Setup? If yes Inverters must corm to same config and rules of Parallel Connection must be obeyed.

Some Inverters can be paralleled from 2 units till 12 Units and they must be connected to the same Battery Bank, Same Input and Output for Single Phase, and 3 Phase rules must be followed where applicable.

FEGEITOK:
That site doesn't load unless you have a VPN enabled.

Nice stuff you got there.

Which site boss

isangjohnson:
I guess your 7kw load draw was done by the huge pv on your roof and not the battery.
If the rated battery capacity was in order, I you may still have pulled out 7kw load on it for about 2hrs and 20 mins... that's if I'm right.
Again, we're still waiting for the confirmation report of your battery capacity test.
Congratulations once again.

You are correct boss, ofcause I will not draw such consumption when the sun is asleep. I used programmable timers to make things like Water heaters and Microwave Oven to only kick on between 10am and 4pm dialy with an option of manual overide using Hager Centerpoint Changeover Switches.
So my night time consumption ranges between 700w to 1.5kw from 10pm till 7am.

Capacity test is a sure thing to do I promise.

coldcandy:
how do you compare 10.5kwh of tubulars with 19kwh of lifepo4?

They are not being compared boss, But if I may comapre them, I have a 5KVA Inverter, 8 Units of 220Ah Tubular (21Kah) setup in my Office. Backing up just my Server, Switches and CCTV. A total load of about 2.5Kw max and the Battery Backup Time is nothing near that of these Lithium Batteries with a wooping load of almost 7kw.

In all honesty. Tubular batteries did well during their regime but the game has changed. Lithium has taken over.
As we speak several combination of Lithiums are in production (See Table) but lets just stay on LiFePo4 for now.

coldcandy:
I remember. You were the man that was vexing with million dollar installations! You still dey vex?

I don calm down now ooo.hehehehe

earnvest:
At this point, you can get a small EV, like the Nissan Leaf, to fully utilize this setup.
Kwh no too much like this?

I swear it's too much ooo. Most times I check the Inverters I see each of them frying about 4.5Kw from the 2 strings of panels respectively. So I know the system is capable of delivering that much power so I feel bad when there is nothing more to power up in the house to consume the excesses.

FEGEITOK:
Congrats brother. I just want to comment on a little section of the post. Will comment on the rest later.

I have learnt that once a week or once a month you should still run the generator, not so much to use it, but so it does not go bad. Now that I am partially dependent on my inverters, I can go months without running the generator but whenever I try to run it, it doesn't come on until after several tries.

I read nasty things about Tubular batteries on the DIYsolarforum.

I still don't believe after what I have read that they belong indoors, but then I am a solar newbie.

Here are the excerpts.

It seems if one can afford it, one should not do Tubular.

I am posting because the usual installation pattern is inverter on top, tubular batteries below. As several pictures on this sub-forum and online indicate

Thanks Bros.
For your Gen, the same thing was happening to mine until I Changed the Control Panel and rewired the Gen with a DSE7320 MKII
https://www.deepseaelectronics.com/genset/auto-mains-utility-failure-control-modules/dse7320-mkii
and a DSE9130 12 volt 5 amp Compact Battery Charger
https://www.deepseaelectronics.com/power/12-volt-battery-chargers/dse9130

I programmed and scheduled the Gen to run itself without giving output for 15 Minutes every Sunday 8am. While the function of the Battery Charger is to keep the Gen Battery alive using AC supply from my domestic connection.

About what you read of Tubular Batteries, yes they evaporate into the air within the installation corner and should not be inhaled. If you have money, go for Lithium but be sure you respect Lithium principles because the can be very dangerous too if wrongly deployed or configured.

Inverters that are Wall mountable will be on the and those that are table top are kept on top of a table-like rack mostly on top of the Battery rack to keep things close and compact.

You can always see professional advice here if you run into glitches with your DIY projects.

Cheers.

isangjohnson:
Please, let us know as soon as the capacity test is completed.
What's your total battery capacity sir?

Of course Boss
I haven't done the capacity test yet if this is what you are asking.

If not, I have 2 Units of 9.5KW Felicity Battery, adding a 3rd unit soon due to addition of loads recently. Disregard the Tubular Batteries because they are being decommissioned.

isangjohnson:
Were you able to carry out capacity test on these Felicity batteries?
Some of us are still doubting the capacity, wondering where Felicity is sourcing its cells from that makes 15kwh 1.6m or thereabouts.
Even with letter B QR code of Eve cells (A-), it's still very hard to couple and sell at that price.
You've really invested cash in RE.
Congratulations.

The Capacity Test is actually the next thing on my todo list, I have populated a list of Battery Meters, DC Shunts, Sensors etc. for this purpose but they are yet to arrive.

I wouldn't mind buying from some of us here though if anyone has Battery Capacity Test Meters please reply with details.

For the QR Code, I don't wand to disassemble the batteries now because of the Warrantee (10Yrs), I know I will find my way to get this info eventually. I made friends @ Felicity both in China and Nigeria and I will definitely run into an open cage one day and get my info on the cells.

I must say that the Felicity Lithium Batteries have performed excellently well with the Load I have on it as compared to the Tubular batteries.
These are 48V-57.6V Design. and the minimum voltage I have gotten so far is 52V after 14hrs (6pm-8AM) with remaining power @ 35%

samir101ng:
Congratulations Boss. Your pocket am sure has not been smiling lately but in the end its worth it for the peace of mind and stability of electricity supply that you will enjoy. You really went all out for this . You have covered all the bases for a neat install with all the protections included. Now that the priority installs are done, maybe you might consider other functionalities like publishing your stats to Emoncms or Pvoutput where our senior Egbons like Bigbrovar, Ojeysky, Barezzi have been killing it with their solar production stats

Great.
My wallet actually got shredded in the process hehehehe, But the peace of mind is incomparable.
I will publish my stats soon. Thanks Boss

aviona:
A very neat installation and equipment architecture you've got. Though the entire space appears quite small sha (just thinking about all the plenty heat generated, as well as, the gas emissions from those tubular gang).

I can only imagine in my mind, how relieved and joyful that your stressed out generator in the picture is, in its new role now, as a mounting stool.

However, just know this for free... the power distribution company in your area will not be very happy with you at all. Because, that prepaid meter in your house will not be generating enough revenue for them again.

Well, in all of this, a big thumps up to you Jones.

Thanks a whole lot Bros.
Just for people who might want to setup something similar, the space is 8ft x 8ft sha. I have ordered a 16Inch Extraction Fan from the USA, The fan is Temperature and Humidity Controlled, also has a mobile App for remote control and mmonitoring.

The "Tubular Gang" are meant to be decommisioned and sold off after fully testing the Lithium batteries and their capabilities. Those Tubular Batteries is going to be replaced by a 3rd 9.5KW Lithium Battery and the 2x 5KW inverters will be put in Parallel Mode (Teste this method already though) Or I would simply grab another inverter with 2 MMPT input Strings for my 10x 540W Panels and 8x 350W Panels, Felicity now has a New Model that has 2 MPPT Inputs , this:
https://www.felicitysolar.com/600v-10000-watt-3-phase-solar-hybrid-inverter-dc-to-ac-in-parallel_p129.html
and this:
https://www.felicitysolar.com/best-48v-5kw-hybrid-grid-tie-pure-sine-wave-inverter-for-home_p128.html

Hehehehe, That my Generator is a 3Phase 6.5Kva Birtoli Gen and was retired since almost 4 years now by my 4 Years old former Inverter (3Kva iPowerPlus) Which I have now installed for my mom in Lagos (Picture Attached Below). So the small Gen is just there rusting out.

This new setup is aimed at retiring my 20kva Mikano Generator for good. And ofcourse Nepa People are not happy with me ooo. They came last week to inspect my meter and I showed them the panels on the roof. Hehehehe. I told them the I had to sum up the monthly 100k I used to recharge for 3yrs and yet the electricity will still not be available when you need it most times. so i decided to demote Nepa Supply on my Priority list and go for solar energy.
The two Genertaors might be auctioned out after a year of fully testing this my potential off grid Installation.

Also

Continued

Who remembers this my Installation?
Well this is how it is now.

dollarnaira:
Can anyone give an answer to dis pls?

Inverter stand alone 1600w/800w continuous
Freezer of 115w consumes about 8a. When the freezer is working, the fan of d inverter wont run and if at all it runs, it is extremely slow.

But the moment I turn on a 32' tv (35w) and decoder of about 6w total of 41w ,( without d freezer) it will run the fan well enough to hear it blows.
Question:
Pls why will tv and decoder of 41w run the fan of the inverter but not with the freezer of higher wattage? Am really curious.

You might want to check your wiring in the house.
Usually before deploying Inverters, you have to make sure that your domestic wiring is perfect.
While checking, make sure you eliminate stray connections, in order words called LOOPING.
so many people make this mistakes, they loop the Nuetral of the House all together while concentrating on the Live Current carrying wires.
Well it might interest you to know that both Neutral and Live wires carry the current concurrently and respectively.
Some of the smart inverters and meters we have today will read or detect your consumption by either Neutral or Live wires and respond according to the higher current carrying wire.

My recommendation goes lik this:
1. Redo you distribution box (DB), seperating the neutral of those loads that are to be on Inverter from the General Nuetral Bar. Your Inverter AC input can be powered from this Main DB but you may have to move some other loads away from the Phase where you wan to Power the Inverter from in a case of 3Phase Wiring.
2. Use a small breaker box (Maybe a 9way) and populate it with small Amp MCBs (breakers) between 5A to 10A max
3. Let the Inverter Power this small Box from Inverter Output (Neutral and Live).
4 Let all those loads that will be on Inverter get their Neutral and Live connections from this Box.

This way, your Inverter will be able to account for it's load's consumption on the two poles (Neutral and Live) you can always loop your Earth Wiring between all boxes and gadgets but NEVER GROUND YOUR PV TO YOUR DOMESTIC EARTHING.

Do these corrections, inspect again and report back.

Thanks

Abeg who get Deye 4.6KVA or 5KVA Hybrid Inverter and cheap ooo, I need two units asap. Location: Abuja