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Satellite TV Technology › Re: Solar Energy, A Complement To FTA by jonescosmos(m): 8:16pm On Jul 11, 2024*

It's possible that it has discharged below BMS Cut off Voltage due to prolonged storage, so you might have to Jump Start it.

To do that, you will need a DC Power Supply, Open the battery and Clip your DC Power Supply to the Battery Main Terminals leading to the BMS.
Adjust your Voltage to the Nominal Voltage of the Battery Pack. Turn on your Lithium Battery by its switch.

The DC Power Supply will confuse the BMS to think that your Battery Pack has not discharged and turn on the Mosfets.

Once the battery turns on, start power up your charge source to start charging your battery then remove the DC Power Supply.

You can also charge the cells directly using this method but this is only if you know what you are doing.

DadojoReloaded:
Good day to all my Oga in the house. I'm currently having an issue with a new SMS LiFe PO4 battery. After installation, it shows a red (ALM) light when I power it ON. Even when it is connected to the felicity charge controller, it doesn't get charged. Instead the charge controller shows error...

Please what could be the cause and how to fix it?

2 Likes

Satellite TV Technology › Re: Solar Energy, A Complement To FTA by jonescosmos(m): 7:59pm On Jul 11, 2024

See am

ojesymsym:
Non vex, can you highlight it, coz I non see am?

Satellite TV Technology › Re: Solar Energy, A Complement To FTA by jonescosmos(m): 12:45pm On Jul 11, 2024*

You can see it clearly in the picture he attached. It's the Precision Resistor 100W12RJ.

mctfopt:
Don't leave us hanging, is there one?

Satellite TV Technology › Re: Solar Energy, A Complement To FTA by jonescosmos(m): 12:44pm On Jul 11, 2024

Deye no fit make that mistake na. grin

Ferdiwar:
I read about the effects of in-rush current and the damages it can cause to inverters, I opened my battery to confirm that it was fitted with a pre charged resistor .

Satellite TV Technology › Re: Solar Energy, A Complement To FTA by jonescosmos(m): 7:40am On Jul 09, 2024

Thank you for this sequel backup support on this issue, I hope that most of us here will learn from this.

lexi28:
Quite correct about the inrush current.

Will prowse uses a pre-charge resistor too before connecting the batteries to the inverter. A cheap alternative is using a 220v/100w or 200w tungsten filament bulb instead of the resistor. In most cases, the bulb will glow slightly when connected inline with one of the battery cables. A 30second wait is usually enough to eliminate such in-rush sparks. Below a 48v tungsten bulb was used. (In absence of that, I use the 100w bulb readily available, wired with a lamp holder and 2 leads. I just hold it for longer)

https://www.youtube.com/watch?v=DOrJ5AH9yjM

https://diysolarforum.com/threads/has-anyone-solved-this-inrush-current-limiter-precharging-circuit-issue.82666/...

https://diysolarforum.com/threads/do-most-builders-users-not-use-inverter-precharge.65222/

The above link discusses the issue when the BMS shuts down for some time, and an inrush current occurs when the BMS switches on again. In this case, the external pre-charge resistor or bulb is of no help.

Hope this helps someone

Satellite TV Technology › Re: Solar Energy, A Complement To FTA by jonescosmos(m): 6:50am On Jul 08, 2024

If you still experience a spark above the capacitance of your inverter after a pre-charge circuit or resistor is introduced in your setup and start-up, then something is amiss.

Of course there's a difference between in-rush current and surge current in devices and circuits, you should always outline your arguing points.
Just as you simply put it out, you should have also explained the difference and how to protect your devices from both types.

It would be interesting to see your analogies of both types of current and how you could use an SPD to resolve the IN-RUSH type of current.

I don't know about others here, but despite my knowledge, I am here to learn more.

loluskysat:
So why do you still have a spark when you connect your inverter to the battery?

There is a difference between in-rush current and surge current.

1 Like

Satellite TV Technology › Re: Solar Energy, A Complement To FTA by jonescosmos(m): 10:03pm On Jul 07, 2024

Chaii,

Please educate us on how to do this an SPD and what class of SPD we should use for this with respect to Battery Current.

We are here to learn !!!

loluskysat:
See, a simple SPD will do this. That's the work of an SPD

1 Like

Satellite TV Technology › Re: Solar Energy, A Complement To FTA by jonescosmos(m): 8:59pm On Jul 07, 2024*

> No, a breaker will not prevent this in-rush current.
> System usage sometimes determines if there would be a disconnect between Inverter and Battery. Someone might not disconnect the battery from the inverter but where the battery mostly discharges below shutdown voltage and inverter trips off, that system is most likely to experience in-rush current when it wakes up if charging source is applied.

When your BMS shuts off because of battery low voltage cut-off, when the battery wakes up there would be an in-rush current if the BMS is not equipped with this resistor.

> Always switch both Inverter and Battery Off when going away.

For DIYers: To retrofit an in-rush resistor into your batter, you would need a Relay Delay Timer or a manual transfer switch which will first contact sends power to the resistor and second contact sends power the to inverter.

For those using factory built batteries with proprietary BMS, pay attention to the moment you turn on your battery, you will hear a click, that is the Relay Delay Timer which operates the resistor. It will first send the power to the resistor for a preset number of seconds (usually 2secs) using the delay timer circuit, and after the 2 seconds, it transfers the power to the output terminal which goes to your inverter.
I have attached diagrams illustrating this process.

Drgreatone:
Apt as always. Thank you for helping some of us learn.
So bin reading about the 'in rush current' and said to occur when trying to connect the inverter to battery majorly. Also common with inverter equal/above 2000w. Wudnt a breaker btw both inverter and battery prevent such? Besides if one isnt planning to be connecting and disconnecting the battery/inverter, what now wud be the use of the resistor?
Then is it right to switch off the LiPO4 battery then inverter when going away as i read it cud also contribute to the 'in rush current' seeing as certain of the inverter capacitors responsible for start up may get drained/discharged while off? Or one sud just switch of the inverter and leave the battery on
Thank you for ur apt response in advance boss

Satellite TV Technology › Re: Solar Energy, A Complement To FTA by jonescosmos(m): 9:59am On Jul 06, 2024

Of course it's a SHORT CIRCUIT FAULT as clearly seen on the screen.

Your first diagnoses should be to power off the output breaker on the Inverter or UPS, restart it and see if the fault continues.

1. If it continues, you might want to have the unit checked out by a professional, a dust clogged PCB might also cause it.
2. If the fault goes away after tripping the output breaker, then have your load appliances wiring checked out by a qualified electrician for possible shorted wires.

Olumighty123:
Professionals in the house, what could be the cause of this...

Please assist

Satellite TV Technology › Re: Solar Energy, A Complement To FTA by jonescosmos(m): 7:07am On Jul 06, 2024

Don't waste your money going to buy another Inverter. The problem is that the IN-RUSH Battery Current damaged the DC Bus Gates of your inverter which is likely to continue even if you buy another Inverter. That spark your noticed was supposed to be absorbed or suppressed by the Pre-Charge Resistor first and softly starts the Inverter LV DC Bus Circuit.

Newer Cworth Batteries has an RJ45 type Pre-Charge Resistor that you can plug into the RJ45 Port to limit the In rush current. Some other Lithium Batteries has the DIP Switch type of this Resistor that you can toggle to on and off.

If your Battery has an RJ45 Port, I would suggest you approach Cworth Service center to grab this Resistor. If your battery does not have an RJ45 Port ask them for a Pre-Charge Resistor or you can buy one to retrofit in your battery.

Every Installer, DIYer, etc is supposed to have this Resistor because some Warrantees does not cover damages caused by In-Rush Current. Take note.

You can google how to protect your Inverter from in-rush current for more info.

SEOSpecialist:
Experts in the house, kindly proffer your advice concerning my inverter setup.

I have a 3.5kva SMK Inverter with two pieces of Cworth Energy 2.5kw Lithium 24V batteries (as seen below) and four 380w PV panels. On Wednesday afternoon, the inverter let out two loud sparks and started displaying error code 09 (this would be the second time within three months). A technician suggested that the inverter may not be compatible with the lithium batteries and suggested I replace it with a 3kva Felicity
brand.

Does anyone have an idea on which inverter brand will be most compatible with the batteries?

Thank you.

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Satellite TV Technology › Re: Solar Energy, A Complement To FTA by jonescosmos(m): 7:59am On Jul 04, 2024

Yeah, SE-G5 1 Pro-B is slightly different from SE-G5.1 PRO. There is still another one SE-G5.1B (For African Market according to Deye)

Ferdiwar:
Mine is similar to this with small difference.

Deye SE-G5 1 PRO 5.12KWH 48V

Satellite TV Technology › Re: Solar Energy, A Complement To FTA by jonescosmos(m): 9:50pm On Jul 03, 2024

You can't just ship it, their ESS haven't gotten the Certification Required For International Trade in Africa. For other regions they don't have issues.

I even tried to ship it to UK and take it from their, they simply told me that the UK Customs will not release it for export into Africa.

I rested my case since that time. But I believe that now they have gone into full scale production, they might soon start sending to Africa.

Dam5reey:
It is about Demand, HV inverters are industrial applications. its has not become mainstream like that. Once demand increase they will surely bring them, you can always ship it anyway.

Satellite TV Technology › Re: Solar Energy, A Complement To FTA by jonescosmos(m): 9:40pm On Jul 03, 2024*

They do, I have been asking for it since 2022, and each time they keep telling me that it's not for African Market yet, That I have to wait.

swagifted:
So felicity has high voltage batteries and inverters... Why are they not in the Nigerian market..

Satellite TV Technology › Re: Solar Energy, A Complement To FTA by jonescosmos(m): 12:03pm On Jul 01, 2024

REPT Cells

Daniel2802:
Can you confirm the exact cell manufacturer they use?

2 Likes

Satellite TV Technology › Re: Solar Energy, A Complement To FTA by jonescosmos(m): 10:46am On Jul 01, 2024

LoRA WAN, GPRS& GPS Meters. They have a central Dashboard Portal where you can Manage Settings, Accounts and other things. Clients can download Apps to see their data and etc

gadgetplanetng:
What sort of meter would work for this?
Would it allow setting max wattage too?

1 Like

Satellite TV Technology › Re: Solar Energy, A Complement To FTA by jonescosmos(m): 8:43am On Jul 01, 2024

They've been challenged, let's await their defense.

Dam5reey:
This Build quality is top Notch, Flexible Busbars, Compression plates, Protection films, and Fuses, But some folks will still say rubbish about Felicity packs without any evidence.

Weldone Boss! Great Job!

Satellite TV Technology › Re: Solar Energy, A Complement To FTA by jonescosmos(m): 10:34pm On Jun 30, 2024

I promised us these take apart pictures, Oya, people wey get Pylontech make una post una own ooo.

3 Likes

Satellite TV Technology › Re: Solar Energy, A Complement To FTA by jonescosmos(m): 10:31pm On Jun 30, 2024

Inside Felicity LPBA48300 15KW

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Satellite TV Technology › Re: Solar Energy, A Complement To FTA by jonescosmos(m): 10:30pm On Jun 30, 2024

Inside Felicity FLA48500 25KW

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Satellite TV Technology › Re: Solar Energy, A Complement To FTA by jonescosmos(m): 10:22pm On Jun 30, 2024

Inside Deye SE-G5.1 PRO-B 5.12KW 48V

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Satellite TV Technology › Re: Solar Energy, A Complement To FTA by jonescosmos(m): 10:20pm On Jun 30, 2024

Inside Deye BOS 5.12KW HV Battery Module

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Satellite TV Technology › Re: Solar Energy, A Complement To FTA by jonescosmos(m): 10:16pm On Jun 30, 2024

Inside Deye BOS G HV Battery Control Unit

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Satellite TV Technology › Re: Solar Energy, A Complement To FTA by jonescosmos(m): 9:49am On Jun 30, 2024*

This is IVEM (New Casing, Currently in production)
Picture 1: 3KW / 5KW
Picture 2: 8KW With Built-in Wi-Fi Module

swagifted:
Like how much is this power button switch.....? And it seeems the HV hybrid have more case study to trust with, currently the person that needs it does not even want to do AC, maybe maximum single load will be a 1 hp borehole machine, that he will rarely use... If not his current maximum load is 750 watts. Please can you help with the exact picture, it will save me lot....is this the 2019 own or the 2022 own you are talking about

2 Likes

Satellite TV Technology › Re: Solar Energy, A Complement To FTA by jonescosmos(m): 9:47am On Jun 30, 2024

This is IVEM (Old Casing production ended January 2024)

swagifted:
Like how much is this power button switch.....? And it seeems the HV hybrid have more case study to trust with, currently the person that needs it does not even want to do AC, maybe maximum single load will be a 1 hp borehole machine, that he will rarely use... If not his current maximum load is 750 watts. Please can you help with the exact picture, it will save me lot....is this the 2019 own or the 2022 own you are talking about

Satellite TV Technology › Re: Solar Energy, A Complement To FTA by jonescosmos(m): 9:46am On Jun 30, 2024

This is IVCM (Production ended in 2019)

swagifted:
Like how much is this power button switch.....? And it seeems the HV hybrid have more case study to trust with, currently the person that needs it does not even want to do AC, maybe maximum single load will be a 1 hp borehole machine, that he will rarely use... If not his current maximum load is 750 watts. Please can you help with the exact picture, it will save me lot....is this the 2019 own or the 2022 own you are talking about

Satellite TV Technology › Re: Solar Energy, A Complement To FTA by jonescosmos(m): 7:36am On Jun 30, 2024

Just a few questions for you:

1. Did you verify that the Copper Rod is real and not coated?
2. What is the Diameter of the Copper Rod?
3. What is the Dimension and thickness of the Copper Mat?
4. How many bars do you have in your Mat?
5, I did not see clamps on your list, how do you intend to link your Earth Cable to your rod?
6. How do you intend to install your arrestor and earth? Same Hole, same Coppers linked to both arrestor and earth bar?
7, Why did you buy so much salt? Where is your Charcoal & Bentonite?
8. How deep do you intend to dig for your earthing?
etc huh

One thing is to have the funds to buy these items, another thing is to do a good installation or do a haphazard installation. But in all these, the choice is entirely yours.

RickyM:
Is there anything else from the thunder arrestor equipment that I still need to get?

Satellite TV Technology › Re: Solar Energy, A Complement To FTA by jonescosmos(m): 7:18am On Jun 30, 2024*

I have 3 units the White Hybrid LV Models working since 2019, I have 6 units of HV Hybrid Models personally owned Since 2022, I have installed more than 50 units of the HV Hybrid Models for clients.

I had issue with one of the HV 3KW which works without Battery but once you connect battery, it shuts down on Error 23.

Then, months into these installations, more than 5 units of the Inverter started to have power switch ON issues, I noticed that if you eventually switch off the Inverter at some point you can't get it to come back on.

Upon investigation, I realized that the Power Switch sucks in dust and it blinds the contacts inside the switch preventing SWITCH ON Operation. Opening the switch and cleaning it up and reassembling it didn't help much.

So I ordered 20Pcs of the Power Switch and have been replacing the buttons as they get bad, I would usually mask the switch with transparent masking tape to prevent air flowing through it.

WHY DOES THE INVERTER SUCK AIR VIS THE SWITCH

**** I DISCOVERED THAT ALL THE UNITS THAT HAD THIS ISSUE HAD CLOGGED AIR FILTERS ****

>>>> CLEAN YOUR AIR FILTERS REGULARLY TO PREVENT THE INVERTER FROM LOOKING FOR ALTERNATIVE MEANS TO BREATHE SINCE YOU CAN'T TELL THE COOLING FANS WHAT TO DO. <<<<

I have never had any Electrically or Electronically Related faults with all the units.

Please note that newer production of these IVEM series now has a pop-out fuse on the left hand side of the inverter. Also note that the IVEM 3KW, 5KW and 8KW now comes in a white case and the power button has been relocated.

swagifted:
people using the felicity 5kw hybrid inverter......any of you have any one that have lasted 2 years and counting with zero issues?

3 Likes

Satellite TV Technology › Re: Solar Energy, A Complement To FTA by jonescosmos(m): 10:13pm On Jun 28, 2024

Check my signature

RickyM:
My installation is off grid completely and not connected to grid.
Can I have your contact?

Satellite TV Technology › Re: Solar Energy, A Complement To FTA by jonescosmos(m): 6:26am On Jun 28, 2024

Sorry for this terrible experience bro.

You need to tweak up your installation if you must continue to use Solar and Inverter while living in that building.

1. You need a rain sensor switch. Most rain-sensing devices work by accumulating a set amount of rainfall before a switch is activated that interrupts the circuit from the controller and shuts off the system.

2. You need a contactor style of ATS that disconnects your Grid Input once Grid is Off which is most likely to happen once it starts to rain. Also in the same box, you will integrate a PV Rapid Shutdown Contactor that will be connected to the Rain Sensor. Once the sensor gives the command, these contactors will shut off all inputs to your Inverter.

3. You need to drive a 6ft or 8ft earth rod into the ground and use it as your earth if the building does not belong to you.

4. You need the appropriate SPDs, AC & DC RCBO MCBs for your PV, Inverter and Home loads. By appropriate I mean the amperage ratings must be appropriate to you devices. Eg. Don't go putting a 63A MCB between grid and your Inverter when your Inverter Input Current is rated 25A Max.

5. You need an experienced electrical personnel to do this connections. No need to go this route if you will not use a qualified technician to install them.

Though this might sound expensive, It's better than replacing or repairing your Inverter every rainy season. It's a must in Renewable Energy if you must use it.

RickyM:
Hello to the great people of Nairaland!
This thunder issue is already messing with my mental state and it’s kind of making me wonder if God is punishing me somehow
Just earlier this year my hybrid inverter got fried and then I decided to get a satchet inverter from one of the seller on here and the inverter been working perfectly fine carrying my two freezers and normal lighting points and charging of my devices.
Went to school yesterday to write an exam and then it started raining, sure can’t run out of examination hall to come home to turn off my system so along the way the thunder strike again and on getting home I realize the inverter isn’t supplying anymore.
Once again I’m without power supply and I have to go to charging stations to have my phone charged.
Please somebody save my dying soul because I’m sad
Could it be because the house I live in is a storey building?
Even my guy without thunder arrestor isn’t affected, why always me?
I already bought all the materials for thunder arrestor installation.
I’m afraid more than ever do buy a normal inverter again because it’s never easy losing money!

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Satellite TV Technology › Re: Solar Energy, A Complement To FTA by jonescosmos(m): 7:13am On Jun 26, 2024

Exactly my concern too.
Going to bury 4 rods is like treating the symptom rather than curing the disease. Of course it might make the leaks to neutral line to hide itself but that doesn't mean it went away. IT WILL SIMPLY FLOW TO EARTH AND YOU WILL HAVE ENERGY LOSS. SOMETIMES WE MISTAKE SOME OF THESE LOSSES AS IDLE CONSUMPTIONS

bigrovar:
I would be more concerned about 40v showing up on neutral that is not suppose to happen. Hiding the fault by shunting it to lower than recommended resistence earth rod should not be the solution. 40v is now going to earth.

I personally would be more concerned by 40v on neutral. I don't know much about this installation having a low resistance works then fine. Have you tried installing an ELCB just to rule out leakage to earth?

My focus is on resistential systems not factories or industrial applications. (I stated same in my post)

My post is mainly based on UK code which is what Nigeria is modeled after.

Satellite TV Technology › Re: Solar Energy, A Complement To FTA by jonescosmos(m): 10:27pm On Jun 25, 2024

SEE ATTACHED PICTURES,
NOTE THAT THERE WILL BE ENERGY LOSSES NO MATTER HOW HE CHOOSE TO STRING HIS PANELS

Drgreatone:
Hello house. Kinda need ur advice here.
I av a friend who I'm sure wud be reading this. Had this old sch 5kva48v felicity inverter with VOC of 145v with 9 pcs of 270w panel connected 3s3p. He later added 2 625w panels which were joined in series and then connected in parallel to the previous 9panels. Now he's gotten a 10kva sms inverter with max voc of 500v and he wants to series all the panels together. What are the possible pros and cons? Not comfortable with the arrangement but he feels it would work.
Thanks in advance
Panel specs:
625w VOC 56.56 ISC 13.6 VMP 47.93 IMP 13.05
270w VOC 37.44 ISC 9.09 VMP 31.2 IMP 8.65

1 Like

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