₦airaland Forum

Royle2014:
This is it

EXCELLENT! Press and hold down the enter button for about 3 or more seconds. It should enter the setting mode. Once it does , kindly let us know your findings

It is likely back feeding to the grid. Try and switch off ALL your connection to NEPA while the inverter is on, and you should notice a drop immediately if what I am suspecting is the problem. Note : disconnect your house from Nepa and see

Ofejiro20:
Good evening Hux...

I've a 5kva Syndian Inverter with 8 luminous tubular batteries which powers all my appliances like 1.5hp Lg inverter, 65 inch Lg TV, Blender, Thermocool Hiscene Table Refrigerator, 4 fans and lightning points. I bought my inverter under good working condition but as fairly used, and it has served me for 3 years now.



This is the 3rd time I've repaired my inverter and just one week of using it after it was repaired, I noticed the fault as started again. The inverter will be making a humming sound inside it and the load rating on the inverter will be like 13% to 14% when my appliance is switched on and even when I switched off all the loads.




Why is my inverter making humming sound and why is the load rating 13% or 14% even when there is no load on the inverter? Is it normal?

Jefferyzz:
Yh. Sorry. It's 130v.

This felicity chargers tell you max vdc is 130vdc, but they never say what's the max current it can handle. It only states charging current (80a in this case) but that's different from the max current into it's input (or maybe I'm wrong).
I don't want to create strings of panels in parallel that will increase current and burn the charger.

Hope my poor English is understandable

Jefferyzz:
Yh. Sorry. It's 130v.

wow same 80A with different VOC , they are not serious

dollarnaira:
Obviously there is an ongoing change in climate. This is no longer wet season.

why did you conclude

ask4bk:
This felicity chargers tell you max vdc is 130vdc, but they never say what's the max current it can handle. It only states charging current (80a in this case) but that's different from the max current into it's input (or maybe I'm wrong).
I don't want to create strings of panels in parallel that will increase current and burn the charger.

Hope my poor English is understandable

Baba I understand you , just stay within voc and recommended wattage on the side🤣, I think translation is a major problem for the Chinese, it's not that they don't have the specs

durodee:
It is likely back feeding to the grid. Try and switch off ALL your connection to NEPA while the inverter is on, and you should notice a drop immediately if what I am suspecting is the problem. Note : disconnect your house from Nepa and see

Yes I've switched off all connections to Nepa but the inverter is still running on that heavy load and the humming sound. Meanwhile, I've connected a voltage monitor to checkmate if any of my neighbours has tapped from my inverter but the watts usage on the voltage monitor is very low cos I've few appliances running right now. So where is the inverter picking up this heavy load and humming sound from?

Ofcourse he can put d 4 panels in 2s2p. Panels in parallel also means bigger cable. The person might b banking on using cheap cables.

ask4bk:
This felicity chargers tell you max vdc is 130vdc, but they never say what's the max current it can handle. It only states charging current (80a in this case) but that's different from the max current into it's input (or maybe I'm wrong).
I don't want to create strings of panels in parallel that will increase current and burn the charger.

Hope my poor English is understandable

ask4bk:
This felicity chargers tell you max vdc is 130vdc, but they never say what's the max current it can handle. It only states charging current (80a in this case) but that's different from the max current into it's input (or maybe I'm wrong).
I don't want to create strings of panels in parallel that will increase current and burn the charger.

Hope my poor English is understandable

did they tell you the max power ?

Jefferyzz:
Ofcourse he can put d 4 panels in 2s2p. Panels in parallel also means bigger cable. The person might b banking on using cheap cables.

Often better having more voltage than current. Helps to minimize current losses along the way. If using cheaper cables, at least try use Original version of those cheap cables; by cheap, I mean the Aluminium cables

SolomonGrundy:
Good evening all.

Any solar installer in benin city here?

Have you gotten your issue solved?

Ofejiro20:
Yes I've switched off all connections to Nepa but the inverter is still running on that heavy load and the humming sound. Meanwhile, I've connected a voltage monitor to checkmate if any of my neighbours has tapped from my inverter but the watts usage on the voltage monitor is very low cos I've few appliances running right now. So where is the inverter picking up this heavy load and humming sound from?

You might be dealing with a processor card problem, or low reading transistors on the primary side

After much thought, I have decided against getting a victron charge controller. Can I use a hybrid inverter as a charge controller? I need a 48v hybrid inverter with 3-5kw with robust communication options (RS485, ethernet)? Pls, I need help. Have a victron system, but don't want to be very tied to their ecosystem. Thanks in advance.

You are a solar engineer and a hospital gives you this load capacity. 5910w.
Note the high power equipment in that load.

What materials do you suggest them to get for a good solar alternative power solution?

Battery kwh, panel kwh, low/high freq inverter? External charge controller?

Experts give ur suggestion.

Ofejiro20:
Yes I've switched off all connections to Nepa but the inverter is still running on that heavy load and the humming sound. Meanwhile, I've connected a voltage monitor to checkmate if any of my neighbours has tapped from my inverter but the watts usage on the voltage monitor is very low cos I've few appliances running right now. So where is the inverter picking up this heavy load and humming sound from?

Get a good electrician to check the wiring system of the inverter line entering the mainboard of the house. It could be wires of the inverter line are burnt , and this can cause a drag on the inverter.

This ain't detailed enough for one to give a suggestion.

Answers to the following question will give a clearer information to what the recommended setup could look like.

Does the hospital plan to go completely offgrid?

Will all the loads be powered at the same time?

What are the critical loads and for how many hours would they be powered?

How many hours of grid power is available?

Would there be room for upgrade or addition of other appliances?

By the way, what about the 3 fridges/freezers at 1500w each still giving a total of 1500w?

ask4bk:
You are a solar engineer and a hospital gives you this load capacity. 5910w.
Note the high power equipment in that load.

What materials do you suggest them to get for a good solar alternative power solution?

Battery kwh, panel kwh, low/high freq inverter? External charge controller?

Experts give ur suggestion.

xzynwa:
This ain't detailed enough for one to give a suggestion.

Answers to the following question will give a clearer information to what the recommended setup could look like.

Does the hospital plan to go completely offgrid?

Will all the loads be powered at the same time?

What are the critical loads and for how many hours would they be powered?

How many hours of grid power is available?

Would there be room for upgrade or addition of other appliances?

By the way, what about the 3 fridges/freezers at 1500w each still giving a total of 1500w?

Good Questions

iraybuju:
Have you gotten your issue solved?

Yes boss, thanks!

ask4bk:
You are a solar engineer and a hospital gives you this load capacity. 5910w.
Note the high power equipment in that load.

What materials do you suggest them to get for a good solar alternative power solution?

Battery kwh, panel kwh, low/high freq inverter? External charge controller?

Experts give ur suggestion.

500w for a fridge? Must be a massive fridge.

I've decided to set aside my inverter cos I've repaired it 3 good times and it's not up to a week before it gets faulty again. I need an inverter recommendation for my load as follows...

1.5HP LG inverter AC..

65 inch LG Smart TV (mainly for parlour)

45 inch Hiscene Smart TV...(Few hours inside room)

45 inch Hiscene Smart Tv (few hours inside room)

Thermocool Table Refrigerator (10 hours daily )

4 Fans (2 on 20 hours standby, rest 2 fans are not more than 6 hours daily)

Blending machine (twice a week)

Bread toaster (twice a week)

Air Fryer (twice a week)

Lightning points for 2 bedroom apartment..

Might possibly use electric oven in the future..




I've a 120 amps Felicity CC so I don't know if hybrid inverter will work. Also, should it be 24v or 48v system? Thanks bosses 🙏

ask4bk:
You are a solar engineer and a hospital gives you this load capacity. 5910w.
Note the high power equipment in that load.

What materials do you suggest them to get for a good solar alternative power solution?

Battery kwh, panel kwh, low/high freq inverter? External charge controller?

Experts give ur suggestion.

U need to reaffirm the wattage of the fridges.. 500watt is too massive to be true

Ofejiro20:
I've decided to set aside my inverter cos I've repaired it 3 good times and it's not up to a week before it gets faulty again. I need an inverter recommendation for my load as follows...

1.5HP LG inverter AC..

65 inch LG Smart TV (mainly for parlour)

45 inch Hiscene Smart TV...(Few hours inside room)

45 inch Hiscene Smart Tv (few hours inside room)

Thermocool Table Refrigerator (10 hours daily )

4 Fans (2 on 20 hours standby, rest 2 fans are not more than 6 hours daily)

Blending machine (twice a week)

Bread toaster (twice a week)

Air Fryer (twice a week)

Lightning points for 2 bedroom apartment..

Might possibly use electric oven in the future..




I've a 120 amps Felicity CC so I don't know if hybrid inverter will work. Also, should it be 24v or 48v system? Thanks bosses 🙏

48v.

You'll be fine with a 6kw hybrid from Growatt, Deye, or SRNE.

Ofejiro20:
I've decided to set aside my inverter cos I've repaired it 3 good times and it's not up to a week before it gets faulty again. I need an inverter recommendation for my load as follows...

1.5HP LG inverter AC..

65 inch LG Smart TV (mainly for parlour)

45 inch Hiscene Smart TV...(Few hours inside room)

45 inch Hiscene Smart Tv (few hours inside room)

Thermocool Table Refrigerator (10 hours daily )

4 Fans (2 on 20 hours standby, rest 2 fans are not more than 6 hours daily)

Blending machine (twice a week)

Bread toaster (twice a week)

Air Fryer (twice a week)

Lightning points for 2 bedroom apartment..

Might possibly use electric oven in the future..




I've a 120 amps Felicity CC so I don't know if hybrid inverter will work. Also, should it be 24v or 48v system? Thanks bosses 🙏

You're good to go with a 8kw/10kw srne 48v hybrid inverter.... however, what's the capacity of ur battery

Anyone selling a 60A SRNE charge controller here?

ask4bk:
You are a solar engineer and a hospital gives you this load capacity. 5910w.
Note the high power equipment in that load.

What materials do you suggest them to get for a good solar alternative power solution?

Battery kwh, panel kwh, low/high freq inverter? External charge controller?

Experts give ur suggestion.

This seems like exam question o.

Edrizz:
You're good to go with a 8kw/10kw srne 48v hybrid inverter.... however, what's the capacity of ur battery

I've 8 pieces of 220ah luminous batteries which has lasted 3 years. Meanwhile, is there any need for hybrid inverter as I already have a charge controller?

HeavenlyBang:
48v.

You'll be fine with a 6kw hybrid from Growatt, Deye, or SRNE.

thanks boss but I already have a charge controller. Having an hybrid inverter would mean that my charge controller will no longer be useful

Ofejiro20:
thanks boss but I already have a charge controller. Having an hybrid inverter would mean that my charge controller will no longer be useful

You can use a hybrid inverter WITHOUT using its charge controller function. That is, if you are bent on not using it, maybe due to the PV reconfiguration required.