You used Option 2 - AC Coupled.

Good luck and do let us know how things work out.

Nexuspulse:
Thanks a bunch NiyiOmoIyunade olopan & earthrealm

Actually the DC elements are hidden inside Conext XW+ Conduit Box & Conext + PDP Panel.

In the end, I utilize the attached diagram and the Fronius Primo came to life. This Austrian technology performs wonders.

The project is for a corporate client at Abuja.

Thank you

olopan:
I'd check for some and revert back.

Kindly remind me incase I am immense in personal activities.

Thank you, I appreciate 🙏

NiyiOmoIyunade:
Ah! 1.5hp AC on a 3.5kw 24v HF transformer based inverter is plenty o

As you may know the HF inverters do not like inductive loads - they have virtually zero surge handling and what they do have is usually for 1 or 2 cycles - read like much less than half a second - although you may have an inverter AC, the variable speed motor will still present an inductive load. The physics limitations of switch mode power supplies must be respected as in an HF inverter lacking a large iron core/toroidal transformer they perforce cannot handle the surges and transients created as inductive loads go on and off (when your AC compressor picks up or cuts off). The ability of your inverter to handle surges and transients is directly proportional to the amount of iron present in the transformer due to something called the 'flywheel effect' . LF transformer based inverters rated for large loads have plenty of iron (more than needed for the application) in their transformers and the FETs switch much slower (hence low freq) and are often large sized and designed to run much cooler - all these factors surges/voltage spikes & transients/ back emf/reverse current/flywheel effect running temps etc impact how well your inverter does with surge loads.

In simple English most budget HF inverters are sorely lacking in the internals needed to run those large and problematic loads robustly for a long time.

There is also the issue of large loads on a 24v system - it is amps flow that makes cables and power electronics heat up which is why you may have seen your fan run more than you expected.

2,000w load on your 24v nominal LFP bank is 75a flowing through the inverter DC bus - even in a premium system 75a is significant energy flow talk less of a budget el cheapo with lower grade components.

I think you may have pushed the device beyond it's real hardware limits. It is not uncommon for the capacities and tolerances of el cheapos to be overstated.

Just for curiosity sake, say the FETs of the Switch mode inverters are made much larger or over sized, such that the ferrite transformer doesn't necessarily need to rely on the flywheel effect, rather, being in the forward mode, the necessary instantaneous power are pulled from the battery to handle surges. Could this be a solution to the problem or must there be an iron somewhere that would have to had store this power needed for the surge?

Hello everyone , I have 350 watt mono panels that are not giving out full rated current . Even in full sun and angled properly , I only manage to get a maximum of 4 AMPS per panel . Is this normal ? .

Donald3d:
Hello everyone , I have 350 watt mono panels that are not giving out full rated current . Even in full sun and angled properly , I only manage to get a maximum of 4 AMPS per panel . Is this normal ? .

My ogas in the house say this period is a bad time for solar harvest as there is a large amount of dust in the atmosphere serving as big blanket over pv.

Mine was 260w max but now I hardly get 130w.

My ogas say make I chill till the first rain wash down the dust.

Greetings everyone...

Just something to share and perhaps, any further enlightenment on this...

Considering the concern on the gas emitted by Tubular batteries and due to my constraints on having to assemble my batteries within the flat, I had to use H2S gas tester to be sure if it triggers but it didn't even though the batteries are in an enclosed make-shift cabinet..

So to makeup for the heat up, I had to install a fan that serves as an extractor and I could tell, the temperature therein is pleasing...

Does anyone have any objection to the whole concept please...

See image.

Good morning!

I remember sometime ago, someone was interested in buying a 3.5kva inverter

A customer is looking to japa and needs to sell his 3.5kva 48V soccer power inverter, used for 15 months.

Please if interested, kindly quote this message.

The concept of avoiding placing a wet cell battery in the house is to avoid safety risks e.g. explosion from the mixture of hydrogen & oxygen when exposed to spark, especially in an enclosed unventilated environment.

What this fan will do I.e. if two units of it
Intake and extract .... Is to ensure at point of operation you have little to no gas buildup.

So it gets a pass from me.

contease:
Greetings everyone...



So to makeup for the heat up, I had to install a fan that serves as an extractor and I could tell, the temperature therein is pleasing...

Does anyone have any objection to the whole concept please...

See image.

Ur pv might b of low amp high volt variant eg 48v 7a. If ur charge controller is a good mppt this won't b a problem. Can u snap ur panel sticker.

Donald3d:
Hello everyone , I have 350 watt mono panels that are not giving out full rated current . Even in full sun and angled properly , I only manage to get a maximum of 4 AMPS per panel . Is this normal ? .

contease:
Greetings everyone...

Just something to share and perhaps, any further enlightenment on this...

Considering the concern on the gas emitted by Tubular batteries and due to my constraints on having to assemble my batteries within the flat, I had to use H2S gas tester to be sure if it triggers but it didn't even though the batteries are in an enclosed make-shift cabinet..

So to makeup for the heat up, I had to install a fan that serves as an extractor and I could tell, the temperature therein is pleasing...

Does anyone have any objection to the whole concept please...

See image.

Drill holes round the cabinet.
By the way, is there any smell of rotten egg?

Do you need a rugged Uninterripted Power Supply Equipment ( UPS) , We have Vertiv and Leums UPS Available. We have them in all sizes. Call/Watsapp us on 08066332919. We have Offices in Lagos and Abuja.

dataking:
If you can review a 10kw solar setup for a school. It was installed for my sisters school but it seems substandard solar equipments was used.
Send me a Whatsapp on 0803361sevenfoureightnine

you would have put location to make it easier, eg Lekki, lagos , gwarimpa Abuja...etc

contease:
Greetings everyone...

Just something to share and perhaps, any further enlightenment on this...

Considering the concern on the gas emitted by Tubular batteries and due to my constraints on having to assemble my batteries within the flat, I had to use H2S gas tester to be sure if it triggers but it didn't even though the batteries are in an enclosed make-shift cabinet..

So to makeup for the heat up, I had to install a fan that serves as an extractor and I could tell, the temperature therein is pleasing...

Does anyone have any objection to the whole concept please...

See image.

gas emitted by the battery is majorly hydrgen gas....& sulphuric acid fumes..the tester you bought is h2s = hydrogen sulphide, so not sure if your tester has a wide range to catch hydrogen gas.
my flooded batteries are indoors in a wide long passage with a window...the gas generation is only significant during the 4hourly equalization period which happens every 4 to 6 weeks.. ensure that ur charge voltage is 14.7/14.8volts and then equalization voltage is 15v to 15.5volts. you would be fine.

what happens most times is some people set the charge voltage at 15v or higher..and so the battery is boiling most of the time..thus generating above than normal hydrogen gas and acidic fumes. charging significantly above c/10 amps also causes the battery to boil and temps to increase

dollarnaira:


Drill holes round the cabinet.
By the way, is there any smell of rotten egg?

Many thanks for your input.. There has never been any "rotten egg" smell... As seen on most of the level gauge of TBs these days is that black "filter/foam-like" membrane which is think has its function to filter this supposed gas. Just my thoughts anyway...

The doors do not really lap as such due to shrink effect of the woods over time so that takes care the need for more parforation..

contease:
Greetings everyone...

Just something to share and perhaps, any further enlightenment on this...

Considering the concern on the gas emitted by Tubular batteries and due to my constraints on having to assemble my batteries within the flat, I had to use H2S gas tester to be sure if it triggers but it didn't even though the batteries are in an enclosed make-shift cabinet..

So to makeup for the heat up, I had to install a fan that serves as an extractor and I could tell, the temperature therein is pleasing...

Does anyone have any objection to the whole concept please...

See image.

It's actually bad practice to install tubular batteries indoor. For me personally I can't sleep well at night knowing the kind of gas that emanate from such batteries. Outdoor installation or nothing.

contease:


Many thanks for your input.. There has never been any "rotten egg" smell... As seen on most of the level gauge of TBs these days is that black "filter/foam-like" membrane which is think has its function to filter this supposed gas. Just my thoughts anyway...

The doors do not really lap as such due to shrink effect of the woods over time so that takes care the need for more parforation..

You have no problems.
You are just being careful.

During my days of Lead acid
It was just at d corner of the house.

zeestone99:


It's actually bad practice to install tubular batteries indoor. For me personally I can't sleep well at night knowing the kind of gas that emanate from such batteries. Outdoor installation or nothing.

What of the air you inhale outside the house.
Certain things are just too "overly exaggerated"
Your opinion though so no qualms

dollarnaira:


What of the air you inhale outside the house.
Certain things are just too "overly exaggerated"
Your opinion though so no qualms

He has a point. We don't know a lot about some of these things and it is important that we take as much precautions as possible. In the open space, the concentration of any dangerous gas is unlikely to be as high as in an enclosed, indoor space. Luckily. the batteries are not something thieves can quickly carry, so you should consider leaving them outside as much as practicable.

In addition, under some circumstances which are not totally predictable, batteries can explode. It is better if this happens in a more open space than inside your house.

A very ventillated area of your house is okay. So far there is cross ventillation , tubular batteries can be placed anywhere indoors.
Preferably close to an open window. None there less it is ok indoors.

dollarnaira:


What of the air you inhale outside the house.
Certain things are just too "overly exaggerated"
Your opinion though so no qualms

Yes I said my personal opinion. After inhaling outside, I will still come and inhale inside lol.

samnaija:
A very ventillated area of your house is okay. So far there is cross ventillation , tubular batteries can be placed anywhere indoors.
Preferably close to an open window. None there less it is ok indoors.

How many houses have such cross ventilations.

zeestone99:


How many houses have such cross ventilations.

I don't understand, so an open window is not in Nigerian houses

samnaija:


I don't understand, so an open window is not in Nigerian houses

Two open windows where you can have space for your inverters in Nigerian houses. How many of such do we have.

zeestone99:

Two open windows where you can have space for your inverters in Nigerian houses. How many of such do we have.

Them dey bro.

adrusa:


He has a point. We don't know a lot about some of these things and it is important that we take as much precautions as possible. In the open space, the concentration of any dangerous gas is unlikely to be as high as in an enclosed, indoor space. Luckily. the batteries are not something thieves can quickly carry, so you should consider leaving them outside as much as practicable.

In addition, under some circumstances which are not totally predictable, batteries can explode. It is better if this happens in a more open space than inside your house.

Battery explosion is rare.
For there to be an explosion one must have gone to the extreme.

zeestone99:


Yes I said my personal opinion. After inhaling outside, I will still come and inhale inside lol.

zeestone99:

Two open windows where you can have space for your inverters in Nigerian houses. How many of such do we have.

Cross ventillation in simple terms making a pathway for air exchange. If you like place it sitting room , dinning room so far there is air exchange, simple open window, it is ok.
mine was originally placed in a veranda outside, I had serious problems with dust, rain and rodents.
When I got more batteries I placed all the batteries in shed with one window wide open, so far no problem , no dust, no rain issues and no rodents..

samnaija:


Cross ventillation in simple terms making a pathway for air exchange. If you like place it sitting room , dinning room so far there is air exchange, simple open window, it is ok.
mine was originally placed in a veranda outside, I had serious problems with dust, rain and rodents.
When I got more batteries I placed all the batteries in shed with one window wide open, so far no problem , no dust, no rain issues and no rodents..

Lol he's lecturing me about cross ventilation. Most inverters are installed in rooms, corridors with little or no access to ventilation infact any small space you find, even under staircase. People use extractor fans or just get a standing fan for cooling.
It's difficult to get that space unless the house was designed and planned to accommodate inverters from scratch. We manage to get installation space that's having one window not to talk of two windows that are positioned for cross ventilations. Anyways my experience is based on city installations, I'm sure there are houses in some areas in Nigeria where you have all the space and windows.

earthrealm:


gas emitted by the battery is majorly hydrgen gas....& sulphuric acid fumes..the tester you bought is h2s = hydrogen sulphide, so not sure if your tester has a wide range to catch hydrogen gas.
my flooded batteries are indoors in a wide long passage with a window...the gas generation is only significant during the 4hourly equalization period which happens every 4 to 6 weeks.. ensure that ur charge voltage is 14.7/14.8volts and then equalization voltage is 15v to 15.5volts. you would be fine.

what happens most times is some people set the charge voltage at 15v or higher..and so the battery is boiling most of the time..thus generating above than normal hydrogen gas and acidic fumes. charging significantly above c/10 amps also causes the battery to boil and temps to increase

Yes you are absolutely correct. But whether the tester has a wide range scan for hydrogen, I may not have a prove for that but I can tell u, am on a project where we are rehabilitating a hydrocarbon plant and each time a hydrocarbon line is aired/opened, the testers triggers and am I usef same tester on my project... Which means this tester is of the industrial standard and approved by the appropriate body for use... So I have got a great level of confidence on this.

On the issue of the period the batteries bubbles, again, yes, I have set my equalization for once every month, so if this is happening and my fan is active, I sure be safe at this period... My major fear was not so much of explosion but the harzard, if any, it poses to life... So with this test result, I think am safe with my batteries in the long corridor within the house as yours..

So I think from your comment, this Concept is safe and it helps... Tha k you for the perimeter provided too anyway!

You will inhale gas from your tubular batteries if it's inside your house. Cross ventilation will not save you. Who still opens windows and curtains in their houses wide open like they are in the village.

zeestone99:
You will inhale gas from your tubular batteries if it's inside your house. Cross ventilation will not save you. Who still opens windows and curtains in their houses wide open like they are in the village.

No mind them boss, even Some of the Sealed lead acid dey release gas.

luvyaself95:
which brand is that and is it 2600mAh

I think it's Bak. Yeah, it's 2600mAh