drizzypat:
hello boss

I jst did that and the charge controller is charging the battery very..

It's also beeping that it's charging from the battery.

So sir what is the issue then

The must inverter?

Now, this is one of the advantages of a modular system. I doubt you would have made this progress in diagnosing the issue if you used a hybrid inverter with inbuilt CC. I hope you get the issue resolved soon

N even if e won get backup inverter pending d time wey Dem go fix d current 1 he's using. E won't spend much. Unlike backup hybrid inverter someone recommended in his type of situation

odimbannamdi:


Now, this is one of the advantages of a modular system. I doubt you would have made this progress in diagnosing the issue if you used a hybrid inverter with inbuilt CC. I hope you get the issue resolved soon

odimbannamdi:


Now, this is one of the advantages of a modular system. I doubt you would have made this progress in diagnosing the issue if you used a hybrid inverter with inbuilt CC. I hope you get the issue resolved soon

Advantage or disadvantage?

Personally I like dem individual.

odimbannamdi:


Now, this is one of the advantages of a modular system. I doubt you would have made this progress in diagnosing the issue if you used a hybrid inverter with inbuilt CC. I hope you get the issue resolved soon

the must inverter is an hybrid inverter with in-built cc

I jst opted to get a separate CC to it so can par with the felicity battery..that's just the difference .

At this point I might as well get a felicity inverter so It can all be same..

Thing is. It has to spoil just at a period where funds are so low .

I've opted to manage gen for now till I'm able to sort it out or prolly get a small one to manage...

Must inverter has humbled me..

Please how much can I get 5kva felicity inverter

Jefferyzz:
N even if e won get backup inverter pending d time wey Dem go fix d current 1 he's using. E won't spend much. Unlike backup hybrid inverter someone recommended in his type of situation

thing now is I don't know who can help fix it

The backup inverter. How much can I get a smaller one for now .

Fairly used or relatively low price will do

TechGeek777:


Please which model of must Inverter do you have?

the 5kva inverter hybrid with 140A max cc

I'll check for one thats not too expensive n give u feedback

drizzypat:
thing now is I don't know who can help fix it

The backup inverter. How much can I get a smaller one for now .

Fairly used or relatively low price will do

There are lots of solar engr. on d thread. I hope one see this n reply u.

drizzypat:
thing now is I don't know who can help fix it

The backup inverter. How much can I get a smaller one for now .

Fairly used or relatively low price will do

dollarnaira:


Advantage or disadvantage?

Personally I like dem individual.

Advantage, bro. A modular system means individual/independent units.

Jefferyzz:
N even if e won get backup inverter pending d time wey Dem go fix d current 1 he's using. E won't spend much. Unlike backup hybrid inverter someone recommended in his type of situation

Exactly.

For folks on a budget like us... , I think a modular system with independent units is best, or at least, have these units as back up in times of failure.

Juror:

You're courting millions, it's now a matter of how many.
What appliances do you want to power?

fridge
2 power 1.5hp
15 bulb
7 ceiling fans
3 smart TV
Washing machine

drizzypat:
the must inverter is an hybrid inverter with in-built cc

I jst opted to get a separate CC to it so can par with the felicity battery..that's just the difference .

At this point I might as well get a felicity inverter so It can all be same..

Thing is. It has to spoil just at a period where funds are so low .

I've opted to manage gen for now till I'm able to sort it out or prolly get a small one to manage...

Must inverter has humbled me..

My empathies, bro. You will be fine. Someone from here shared the contact of a technician that is very good with repairs of inverters and controllers. Try reaching me so I can share the contact with you. It is in Lagos, though

odimbannamdi:


My empathies, bro. You will be fine. Someone from shared the contact of a technician that is very good with repairs of inverters and controllers. Try reaching me so I can share the contact with you. It is in Lagos, though

THANKS alot bro



Although I will need help in suggesting an average Inverter I can use now..

drizzypat:
the 5kva inverter hybrid with 140A max cc

Okay, how long have you used it before it develop this fault?

Jefferyzz:
I'll check for one thats not too expensive n give u feedback

thanks alot sir

drizzypat:
Please how much can I get 5kva felicity inverter

Contact Jonescosmo. I think he still has one for 350k

drizzypat:
thing now is I don't know who can help fix it

The backup inverter. How much can I get a smaller one for now .

Fairly used or relatively low price will do

Oga drizzypat I can understand your situation. it depends on what you mean by smaller one.

You can check @valto he sells 1000W, 1600W and 2000W Valtech pure sine wave inverter. This could be the short fix you're looking for. You can reach out to him and see if it helps.

odimbannamdi:


Advantage, bro. A modular system means individual/independent units.

Oh true.
Didn't read it well.
Thanks

mangolpupa:


Oga drizzypat I can understand your situation. it depends on what you mean by smaller one.

You can check @valto he sells 1000W, 1600W and 2000W Valtech pure sine wave inverter. This could be the short fix you're looking for. You can reach out to him and see if it helps.

thanks at what range do think it goes for ..d 2000w/48v

drizzypat:
thanks at what range do think it goes for ..d 2000w/48v

Thats what I dont know. You can reach out to him, he is knowledgeable and I believe can answer or provide clarifications.

Just reach out to him.

mangolpupa:


Thats what I dont know. You can reach out to him, he is knowledgeable and I believe can answer or provide clarifications.

Just reach out to him.

good evening. only 12v variants available for now. thanks.

Please, how good is sukam falcon+ 24v Inverter?
A friend wants to buy it.

Valto:
good evening. only 12v variants available for now. thanks.

@drizzypat see valto's reply. I hope you get a suitable alternative or suggestion from a member soon.

Hello, guys. I need suggestions and possibly ideas on cost for a solar system.

I want to power these for 15 hours daily.

65W Laptop
Monitor
Phone (charged once daily)

What systems should I go for? (Battery, solar panel, and inverter...or just inverter+panel?)

Do you have an idea of the total cost?

Thanks.

odimbannamdi:


Now, this is one of the advantages of a modular system. I doubt you would have made this progress in diagnosing the issue if you used a hybrid inverter with inbuilt CC. I hope you get the issue resolved soon

But is there electricity supply to his household? He has been able to charge the battery to full so what next? To me this is not an advantage over hybrid.

NiyiOmoIyunade:
A 1.5hp water pump running at 2kw is either ancient, inefficient or falsely labelled. You should be able to call it what it is for your specific case and not generalise about how all pumps behave.

I have 2pcs of 0.5hp pumps for pressure boost, 1pc 1hp pump for lifting water to the roof and 1pc 2hp pump for running garden sprinklers and irrigation - all these pumps work very close to spec as per wattage.

Quoting verbatim, I said the below about voltage yet you have managed to make it seem like it was not a part of the text you quoted.

I wonder what is your objective in this our back and forth engagement?

Boss, I have been following this pumping machine discussion with utmost interest.

Attached is the control box of the pump showing its readings/parameters.

230v 15a 2hp (from my calculations I got 3450W)

The pump is attached to 5kva century stabilizer.

I would like to know the following:

1. Does stabilizer have surge to power devices/appliances more than its capacity?

2. Is it possible that the pump is actually consuming 3450W per hour?

3. Can 3KW inverter with surge of 6000W power this pump?

4. Will 200ah 24V LFP and 200ah BMS power this pump?

isangjohnson:

This issue of price increase might not be general.
A friend bought 164 units for 10k in PH on the 26th of last month.

They have these documents for every disco.

What you pay depends on your tariff band

isangjohnson:
Please, how good is sukam falcon+ 24v Inverter?
A friend wants to buy it.

That is a very old inverter from a company that used to be one of the biggest inverter brands from India (before they went out of business) I was actually my first ever inverter and I had nothing but good things to say about it. It is very simple so expect no bells and whistles. It however gets the job done without issues.

The things I liked about it include
* Efficiency. I had the 1.6kva inverter and it used just 24w when idle. This is relatively low for an inverter of its class
* I can charge the battery when the inverter is off, I found this feature quite neat as it allowed the inverter to charge the battery even when it is powered off, It can also pass through from the grid to inverter load when it is off.
* it has temperature-controlled charging. The inverter has a temperature probe that can be attached to a battery and used for configuring temperature-adjusted charging. A very rare feature for an inverter of that class
* The inverter has built-in "UPS" mode. This feature allows it to have very fast transfer times between grid and battery backup (not more than 10 ms). This becomes useful if you have desktop computers or other sensitive equipment behind your inverter, it ensures you don't face a restart during power transfer from the grid to inverter battery backup or vis visa.
* The inverter is generally very rugged. I used it and sold it off and the person who go it also used for for a very long time. It is a very simple inverter but is built to last.

The limitations of the inverter include
* Slow charging and generally limited charge capabilities. the inverter can only do 15A charging and the charge voltage and time is not adjustable. It has some presets like AGM and Tubular.
* Limited surge capability. The ability to use the inverter with inductive loads is very limited. The inverter can not be able to meet the surge requirement of large appliances like freezers and water pump
* Not so good-looking. The inverter is not the most good looking especially when compared to Chinese inverters. It has no wall mount option for example.

[quote author=earthrealm post=119624190]

Well done boss so what size of sumo can someone used to run 700ft only in day time on Soler panel only and the draw current and the size of the pv?

I am now officially shook at the variety of pumps in circulation and their penchant for eating up insane amounts of energy

But fortunately I have access to quite a few pumps at my own location and customers' too - below is a picture of my 2hp garden irrigation pump - it is 2hp / 7.1a / 1.6kW which is pretty within spec of what 2hp should draw in a normal duty cycle.

To your questions

1) I suppose the Stabilizer has been paired with the pump and working in that application for a bit? - the proof of the pudding is in the eating. I would not normally use a 5kva relay stabilizer with 3.45kw of inductive load as you say the pump consumes but the pump startup surge is just for a few seconds and a decent stabilizer should be indifferent to this surge since the load is just passing through the transformer windings directly.

Is low voltage a real problem in this pump application? Then I would have specced a servo stab with size suitably derated for the lowest operating voltage I expect on the input side of the stab.

2) I cannot say what your pump consumes and the nameplate is just a guide - you have to measure, measure, measure to know what the consumption is. I have encountered some ancient pumps being used out of tolerance but the biggest issue they present is the start up surge tripping up our protection devices - once running they run okay albeit inefficiently.

3) Measure your pump's actual power draw vs the inverter's surge rating to size properly. Already you said you think the pump eats 3.45kW so that would already exceed a 3kW inverter's rated capacity.

4) One of the sad parts of an engineer's training is the loss of certainty and constant calling out of caveats and qualified opinions - a 200a BMS in 24v nominal application SHOULD run ~5kW easy however not all BMS with 200a written on them can do that rating. without problems. Also how was your LFP pack built? How were the cell interconnects made and were they properly torqued tight? This will drive how well the LFP battery pack does with large loads. I belong to a backend forum of LFP battery pack builders and I can assure you failures due to improperly torqued connections are very common although some will refuse to acknowledge this fact. Getting quality cells that can withstand a proper torque and how to deliver that proper torque became the holy grail of our movement.

My own custom LFP builds use an industrial grade machine to deliver an accurate amount of torque to each cell connection. We have not had one single failure or need to go retorque anything in a pack.

If indeed your pump draws 3.45kW, you will be operating pretty close to your battery 1C rating - a well designed pack can carry this load but you may well run out of stored energy if the pump is running for a long time - it were probably best to have some PV assist or Grid or Genny or constrain the pump draw and run time to within the stored energy delivery ability of your battery pack. In other words despite using the much vaunted LFP you probably need a different larger battery or switch to a smaller and more efficient pump for long term stability.

Finally at the risk of serious vitriol and backlash from
a certain set of people, I reiterate that a 1.5hp pump drawing 1.8kw and above is either ancient or inefficient or falsely labelled. When I say inefficient I mean broadly that the pump is either working a harder duty cycle than designed (undersized) or the wrong pump is being used for the application (over powered) amongst several possibilities. In the best case the hp rating should be upgraded to match the actual electrical behaviour of the pump (address misleading labelling) - this is what an informed user or technical person should do vs. trying to reinvent the relationship between various standard measurements of energy and work done.

The fact that something can move/lift liquids does not mean it is the right pump for every application - just as people match inverter to loads, pumps need to be matched to the required duty cycle for an application. Again this is no wonder in a country where people routinely use a 5kVa inverter to run less than 1kW of loads with very brief surges into the 2-3kW range and applaud themselves on how 'robust' their design is or say the hugely oversized inverter is more 'rugged' which is why they chose it.

There! I said what I said ......

TechGeek777:


Boss, I have been following this pumping machine discussion with utmost interest.

Attached is the control box of the pump showing its readings/parameters.

230v 15a 2hp (from my calculations I got 3450W)

The pump is attached to 5kva century stabilizer.

I would like to know the following:

1. Does stabilizer have surge to power devices/appliances more than its capacity?

2. Is it possible that the pump is actually consuming 3450W per hour?

3. Can 3KW inverter with surge of 6000W power this pump?

4. Will 200ah 24V LFP and 200ah BMS power this pump?

Good morning all,

Novice here that will need your help. I recently installed a setup for my home using a Famicare I think 3 or 5kva.

2 tubular 220ah battery and 2 300w and 4 180w panels, with an Mppt Charge Controller. All were brand new.

All installation was carried out by an installer so forgive me if I don't know the right specifications.

The issue here are
1. The inverter battery charge light never goes off. Always blinking since in1stallation.

When the battery bar (four bar) voltage is always at 13.5-13.7v .

2. Major issue, the battery doesn't last more than 5 hours. Usage is not that much at least I have never gone beyond 25% load capacity since installation but within 4-6 many hours of use it starts beeping.

Note nothing heavy is on the system. Four fans, One TV and lights.

Please what is the solution to this as this setup cost quite a lot and isn't meeting my expectations.