Definitely.....if my 5kva felicity can power our 1.5hp submersible pump comfortably, I don't see why a 5.5kw inverter will be having issues starting any of your above mentioned load. 5kva inverter should be able to power at least 3hp motor load conveniently
Do you mind stating your setup (including the Felicity series, idle consumption, battery bank etc).
NiyiOmoIyunade: I hear you boss but I am not sure I agree. I say often that because something appears to 'work' does not mean it is/has been done correctly.
The Victron ESS and PV inverter assistant algorithms are designed to prioritise use of solar first then battery (if self consumption is desired) then Grid and lastly Generator.
In the presence of PV the system will throttle Grid usage to the minimum possible based on current system state and settings (Grid Set Point), if the system starts a Generator and Generator power provided on a correctly designated AC input then the system will flog the Generator for the max input current limit.
Consider that Diesel Gens save diesel consumption within specific loading bands, it is incorrect to assume that the inverter algorithm will automatically throttle Generator load demand into the next possible lower consumption band except somebody took the pain to implement an external control loop to this effect (which control loop is not a trivial undertaking). The inverter simply has no knowledge of the Gen capacity or diesel consumption saving band except for the input current limit set for the AC input the Gen is connected to. This setting is targeted to not overload the Gen and does not contemplate running the Gen 'efficiently'
ok Chief. I get your explanation, but I don't think I agree totally as well.
Just the same way the inverter can throttle grid usage, I'm sure in the same way it can dynamically reduce its demand on the gen as pv harvest increases and increase its demand on the gen up until the set input limit before going into passthrough mode, all of this being done without a third-party control loop mechanism_ The system sees a three-phase supply whether gen or grid and acts accordingly. So I think anyways.
I wish we have some Victron backend dev here to clarify things better sha.
Sometimes the greatest things come in humble packages.
But to the matter - say your system runs the ESS assistant, the power assist and dynamic current limiter functions of the inverter are disabled/unchecked but ESS has it own way of managing these things.
Throttling the Gen load demand implies sufficient PV production to service loads and therefore no need for the Gen to run. If the system calls for the Gen to assist loads or battery charging and is simultaneously throttling the Gen output, you can see how that is not very productive
What you describe typically happens when the Gen was manually started (outside the ESS and GX autostart parameters) or the Generator start/stop was suboptimally setup or the ESS multiphase regulation was set to 'total of all phases' in a 3 phase system with Generator assist or the Gen is oversized for the application.
More than one of the above can be true per time.
Most customers would struggle with the Gen being started during the day in the face of sufficient PV except you have undersized the PV relative to load demand. There is a scenario where the Gen is needed to support peak loads and if properly done the Gen will be sized to be just able to provide the balance of energy in the system and hence there should be no throttling.
In short, the overriding philosophy in all systems I know is to run the Gen as hard as it can handle and not derate or buck under the burden. If the Gen is oversized as Nigerians like to do, then good money was and is just being thrown away.
If your design goal is to co-run the Gen efficiently e.g a PV Diesel application that is best done by sizing the Gen properly or failing that an external control loop to force the Gen to run in its most efficient power band per time.
If I will leave any nuggets it will be below; 1) In a PV inverter or mixed AC/DC coupled application, ensure Gen is connected to a separate inverter input, designated as Gen on the GX and never manually started (look to the ESS control setpoints and AGS parameters like 'Quiet Hours' to lockout Gen start in the presence of PV)
ok Chief. I get your explanation, but I don't think I agree totally as well.
Just the same way the inverter can throttle grid usage, I'm sure in the same way it can dynamically reduce its demand on the gen as pv harvest increases and increase its demand on the gen up until the set input limit before going into passthrough mode, all of this being done without a third-party control loop mechanism_ The system sees a three-phase supply whether gen or grid and acts accordingly. So I think anyways.
I wish we have some Victron backend dev here to clarify things better sha.
At the installation where I had to replace the inverter and panels just last month, installer claimed it was sufficiently protected (there's no way I know of to test till it's too late)
There's a big quality/standards issue in our country.
At the installation where I had to replace the inverter and panels just last month, installer claimed it was sufficiently protected (there's no way I know of to test till it's too late)
There's a big quality/standards issue in our country.
Sorry for your loss. Couldn't agree more! This country is suffering from a dearth of knowledgeable tradesmen or professionals. it seems no sector is spared: building, plumbers, tilers, electricians, engineers. This problem makes it more appealing for people that are DIY inclined to do a lot of the thinking and gathering of information. In an ideal situation, it shouldn't be. The installer as a solar engineer should have advised of possible scenario (as a Nigerian that understands his environment) and provided solutions. If he tells you, Oga, you need to put SPD here and you say not yet then if something goes wrong, you know you were informed.
With the relative high cost of solar installation, such avoidable mishaps can be saddening. Thanks for sharing this experience so that some of us on the journey to solar energy freedom will be encouraged to strengthen our resolve for adequate material/human safety.
Sorry for your loss. Couldn't agree more! This country is suffering from a dearth of knowledgeable tradesmen or professionals. it seems no sector is spared: building, plumbers, tilers, electricians, engineers. This problem makes it more appealing for people that are DIY inclined to do a lot of the thinking and gathering of information. In an ideal situation, it shouldn't be. The installer as a solar engineer should have advised of possible scenario (as a Nigerian that understands his environment) and provided solutions. If he tells you, Oga, you need to put SPD here and you say not yet then if something goes wrong, you know you were informed.
With the relative high cost of solar installation, such avoidable mishaps can be saddening. Thanks for sharing this experience so that some of us on the journey to solar energy freedom will be encouraged to strengthen our resolve for adequate material/human safety.
I invited someone to help me with the install.
I know what to do, but nothing beats hands-on experience.
But there were clearly gaps in his knowledge.
I asked about earthing panels, he said it was unnecessary,
I insisted on installing protective devices so that I could isolate the battery and the PVs, he said it was unnecessary.
This video is proof that you need to install earthing and lightening protection systems for your PV.
Consider that lightning is poweful enough to cross from cloud to object on earth passing through thin air (the air becomes an electrical conductor at such energy levels). Ditto the induced surge in your home wiring can easily arc/jump across the tiny air gap when your breaker contacts are open.
Safe electrical isolators give sufficient space clearance and also sometimes use an insulation barrier to ensure the contacts are truly open. An average home use breaker is not a safe electrical isolator.
Thank you for this submission, I never thought about it this way
Please i have a 2KVA 24V Genus Proton Inverter, I noticed it stopped charging my batteries up to 26V - 27V, At some point it would not go beyond 25V. Now it does not even charge the batteries at all. It comes on but just shows overload trip even with no load on it.
I use 2 nos of 200A 12V Gel deep cycle batteries
Can the inverter be repaired? Can any one help recommend some one who can? I also want to install 4 nos of 300W solar Panels, Any ideas what i need to look out for?
Thank you very much for the knowledge sharing here
Consider that lightning is poweful enough to cross from cloud to object on earth passing through thin air (the air becomes an electrical conductor at such energy levels). Ditto the induced surge in your home wiring can easily arc/jump across the tiny air gap when your breaker contacts are open.
Safe electrical isolators give sufficient space clearance and also sometimes use an insulation barrier to ensure the contacts are truly open. An average home use breaker is not a safe electrical isolator.
I consulted you before setting up my PV system.
Thanks for your advice.
Please can you give me the names of one or two safe electrical isolators that I deploy between the PV and the CC?
From the video, I posted earlier today, investing in a proper lightning protection system is a very expensive venture.
So let me start with the one that isn't as expensive.
NiyiOmoIyunade: There are at least 2 to 4 Victron devs here.
ahhh...where them dey oh. I will like to discuss some system anomaly I have observed on some Victron installations.
Sometimes the greatest things come in humble packages. ...True
But to the matter - say your system runs the ESS assistant, the power assist and dynamic current limiter functions of the inverter are disabled/unchecked but ESS has it own way of managing these things.
Throttling the Gen load demand implies sufficient PV production to service loads and therefore no need for the Gen to run. well, thats true but you know PV supply fluctuates alot na, so there are times when the pv supply is low and that time then gen is revd to its set load limit....[/b]If the system calls for the Gen to assist loads or battery charging and is simultaneously throttling the Gen output, you can see how that is not very productive [b]correct, but you know I am not using the ESS system yet just normal gen start/stop command parameters on the GX for a 3phase configuration. So assuming the gen was started by the GX based on say SoC command, the gen will run till the off threshold is reached. Within that running period, PV inverter harvest can be great enough to make the system derate its load on the DG, just as it would have done if it was grid that was inputed at the time. Thats my point
What you describe typically happens when the Gen was manually started (outside the ESS and GX autostart parameters) or the Generator start/stop was suboptimally setup or the ESS multiphase regulation was set to 'total of all phases' in a 3 phase system with Generator assist or the Gen is oversized for the application. True, but I have seen it happen when DG is run by Gen start/stop command automatically
More than one of the above can be true per time.
Most customers would struggle with the Gen being started during the day in the face of sufficient PV except you have undersized the PV relative to load demand. There is a scenario where the Gen is needed to support peak loads and if properly done the Gen will be sized to be just able to provide the balance of energy in the system and hence there should be no throttling.
In short, the overriding philosophy in all systems I know is to run the Gen as hard as it can handle and not derate or buck under the burden. If the Gen is oversized as Nigerians like to do, then good money was and is just being thrown away.
If your design goal is to co-run the Gen efficiently e.g a PV Diesel application that is best done by sizing the Gen properly or failing that an external control loop to force the Gen to run in its most efficient power band per time.
If I will leave any nuggets it will be below; 1) In a PV inverter or mixed AC/DC coupled application, ensure Gen is connected to a separate inverter input, designated as Gen on the GX and never manually started (look to the ESS control setpoints and AGS parameters like 'Quiet Hours' to lockout Gen start in the presence of PV)
The scientific way to answer this question is that we need to find out the startup load specific to your 1.5hp inverter AC and inverter fridge.
The best way to do that is using a device that measures that startup load.
Or alternatively, share it here for others to help you decode, or you yourself studying and decoding the product datasheets.
Theoretically all 'inverter' items are soft/ electronic start and have a much lower starting current than the conventional older models. They also do not have the periodic ramping / kick during operation.
NiyiOmoIyunade: There are at least 2 to 4 Victron devs here.
ahhh...where them dey oh. I will like to discuss some system anomaly I have observed on some Victron installations.
Sometimes the greatest things come in humble packages. ...True
But to the matter - say your system runs the ESS assistant, the power assist and dynamic current limiter functions of the inverter are disabled/unchecked but ESS has it own way of managing these things.
Throttling the Gen load demand implies sufficient PV production to service loads and therefore no need for the Gen to run. well, thats true but you know PV supply fluctuates alot na, so there are times when the pv supply is low and that time then gen is revd to its set load limit.... If the system calls for the Gen to assist loads or battery charging and is simultaneously throttling the Gen output, you can see how that is not very productive correct, but you know I am not using the ESS system yet just normal gen start/stop command parameters on the GX for a 3phase configuration. So assuming the gen was started by the GX based on say SoC command, the gen will run till the off threshold is reached. Within that running period, PV inverter harvest can be great enough to make the system derate its load on the DG, just as it would have done if it was grid that was inputed at the time. Thats my point
What you describe typically happens when the Gen was manually started (outside the ESS and GX autostart parameters) or the Generator start/stop was suboptimally setup or the ESS multiphase regulation was set to 'total of all phases' in a 3 phase system with Generator assist or the Gen is oversized for the application. True, but I have seen it happen when DG is run by Gen start/stop command automatically
More than one of the above can be true per time.
Most customers would struggle with the Gen being started during the day in the face of sufficient PV except you have undersized the PV relative to load demand. There is a scenario where the Gen is needed to support peak loads and if properly done the Gen will be sized to be just able to provide the balance of energy in the system and hence there should be no throttling.
In short, the overriding philosophy in all systems I know is to run the Gen as hard as it can handle and not derate or buck under the burden. If the Gen is oversized as Nigerians like to do, then good money was and is just being thrown away.
If your design goal is to co-run the Gen efficiently e.g a PV Diesel application that is best done by sizing the Gen properly or failing that an external control loop to force the Gen to run in its most efficient power band per time.
If I will leave any nuggets it will be below; 1) In a PV inverter or mixed AC/DC coupled application, ensure Gen is connected to a separate inverter input, designated as Gen on the GX and never manually started (look to the ESS control setpoints and AGS parameters like 'Quiet Hours' to lockout Gen start in the presence of PV)
Theoretically all 'inverter' items are soft/ electronic start and have a much lower starting current than the conventional older models. They also do not have the periodic ramping / kick during operation.
Oh cool. I forgot that those were not conventional.
A quick one here, people that have a high voltage PV array, do you get electric shocks from them when you attempt to wash them?
I never wash mine online, i have 2 MPPTs on the hybrid inverter, each with a separate isolators installed before the inverter input, so if I want to wash I switch off one MPPT while the other is online and vice versa, when done washing I switch them all back on
Expects in the house, please an inverter with "Maximum Bypass Overload Current": AC 63A, what will be the equivalent in watts when in bypass mode, is it multiplied by inverter voltage 63a * 48v OR by Nepa Voltage 63a * 220v?
TechGeek777: Expects in the house, please an inverter with "Maximum Bypass Overload Current": AC 63A, what will be the equivalent in watts when in bypass mode, is it multiplied by inverter voltage 63a * 48v OR by Nepa Voltage 63a * 220v?
For Ac just multiply by 200 to get approx watts. Normally you multiply voltage, current and power factor.
I never wash mine online, i have 2 MPPTs on the hybrid inverter, each with a separate isolators installed before the inverter input, so if I want to wash I switch off one MPPT while the other is online and vice versa, when done washing I switch them all back on
Apart from this I wash them very early in the morning before the sun picks up and switch of all isolators. Another way wash at night.
@Valto has 5kw Deye. In terms of quality and durability, Deye it is
sold out since January 24v 280ah lifepo4 lithium battery with brand new grade A 280ah Lifepo4 cells, metal box, 125A circuit breaker, 100A Bluetooth bms e.t.c going for 1,080,000
