charl

I have a sunsynk 5kw inverter and I had this same problem last night. I have completely disconnected my solar panels. I have tried multiple system restarts. But the inverter is not restarting. It powers on, but does not change to normal. Does anyone have any suggestions

This is based on the data sheet of the panels. But, If I look at the info on the inverter, once the batteries are full, the Voltage of the 6 existing panels spikes to 280.6v. 280.6v / 6 = 46.7v 46.7 x 10 = 467v Under normal use and charging the sit at 255v

So I bought another 5 x 555w panels, But have realized that all 5 will exceed the voltage of the inverter with the existing 6 panels facing North West, So if I install all 5, but add 4 to the existing 6 the STC volts would be 499.5v and NOTC Volts would be 469.7v the amps would be well within range I am planning to move the existing 6 x 335w panels to the North east on the second string to get the morning sun This is all up until I get the second inverter. Question is, Is the 499.5v to close to the 500v limit of the inverter and all the DC fuses and I will have problems?

Thanks all for the advice. I'll be adding another 5kw. The advantages of the 2 inverters and additional power out ways the cost. In the meantime I'll be adding a additional 5 x 555w panels. And will get the second inverter next month.

I currently have a Sunsynk 5kw inverter with 20kw of Pylontec batteries and 5.2kw of solar (1 string of 2kw and 1 string of 3.2) we are right at the limit of the 5kw inverter tripping it a few times as we are have added my tenants on to the system. we do have Eskom but would prefer not to use it I have bee thinking of adding another 5kw inverter in parallel and then I would have another 2 MPPTs for 2 more strings, as I need to add more solar as well. But the price of the 8kw is not much more than the 5kw, it might be worth selling the 5kw and adding a new 8. This would make the change over a lot easier and I would not need to add any additional wiring on the AC side to parallel a new 5kw Any thoughts or suggestions would be greatly appreciated

It does not show the watts. Only the pv voltage and the amps going into the battery. I don't think it is the best inverter

Ok. So after disconnecting all the panels. And connecting one back. It started to charge the power the load. And charge the battery a little I then connected a second panel in parallel and it is now charging the battery. But the cloud link does not register the solar. It is a very cloudy day. But seems the 2 panels are generating around 50% power. so seems right. I'll add the other 2 panels one at a time in parallel. This will be under the 50amps

Thanks for all the replies. I'll try find a replacement charge controller as we just install a Hubble cloud link to be able to control when the inverter uses solar battery or grid. Not sure how it will work if it uses a external charger

Oh no. Probably should have paralleled all of them. Would have been under the 50amps I'll try open it up over the weekend and see if I can see anything Does anyone know if the charge controller is a separate module and if I could buy a replacement one from somewhere

I have a similar set up that I installed for my parents. They have the axpert ps 3kva it does not say the solar watts. But assuming that the 50a x 24v it is a max of 1200w of solar I have since added 4 ja solar 365w panels. 2s2p. But the inverter registers the solar panels but it is not charging the batteries or using it for the load. we also added a Hubble cloud link in order to monitor and check the production. when the panels are disconnected from the inverter they are generating 77v but as soon as they connect, the voltage drops to 42v but does not charge or power the load. Does anyone have any solutions or have expected the same problem. And am I misunderstanding the 80v max solar voltage.

Thank you all for your replies My panels are on adjustable stands, I have them at 35 degrees now in winter, and dropped them to 15 degrees in summer. I think the best options would be to reconfigure my panels in 2S4P possibly even with a disconnect for the 2 end panels for winter. I'm not sure if they would drop the production of the entire system Unfortunately I don't have any more space on my roof at the moment, Ill have a look into the solar optimizer

I currently have 12 solar panels connected as below to a Axpert 5kva Inverter. +- 3.8kw of panes. However, In winter 2 of the panels spend most of the day in some shade. does anyone have a suggestion to re wire the panels to possibly omit the two end panels in winter. In summer it is not so much of a issue as the sun is much higher. As you can see, this photo was taken at 12-30 and there is still shade on the two end panes This is my first winter with this set up, and I know production is lower in winter. But my system is peaking at around 2.2kw and my total daily production is down from 15kwh to 9kwh on a clear day. is this normal for winter, or is it a result of the shading on my panels

Thanks, So if the stairs are on a external wall. and we created at louver in the wall for ventilation, and kept a door on the enclosure

Hi, Sorry if this has been posted before, I was just not able to find anything, and after a few minutes of searching, I decided to post the question. Is the any regulations on where you can store to batteries for a off grid installation, For instance, I have 2 pylontech 3500B batteries with a 5kva inverter. Would I be able to install this inside a house, say under a staircase? or would it have to be installed in a garage or in a Containment room? Besides the noise of the inverter fans, would this be safe to do. Thank you in advance

Hi, yes the inverter does have mppt. The fans do make a bit of a noise, but they do not run all the time. So not to bad. The 5kva I have just installed has its fans running almost constant when on load and solar