Dunndeal
SparksMayFly
I’m having a brain fart. Would some one show me a picture of a 3S1p configuration’s of PV panels. I want to be sure I’m doing it right. Thanks in advance
I’ll have 3 in series and 1 in parallel.You have 3 panels, i will call them A, B and C.
Take the + of A and connect it to the - of B. Take the + of B and connect it to the - of C.
Done. Grab a beer and post a pic.
How many panels do you actually have? 3 or 4?I’ll have 3 in series and 1 in parallel.
I didn’t mean to confuse I could not quickly find a picture of 3S that’s a 4Sacdoctor you’ve help me again. Thanks very much. I must be confused about 3S1p. I thought 3S1p meant the in 3 series and 1p = 4 panels more research on my part
OK then, as I said, you have 3 options for arranging 4 panels. The choice depends largely on the full specs of the panels and your solar charge controller. It can also depend on potential shading issues and battery/system voltage.I’ve got 4 panels. Thanks for your help
Your suggestion is appreciated. But that would over amp the system and I would be over voltage. I have four panels. I want to hook 3 in series and 1 panel in parallel. I have a48 volts systemHow many panels do you actually have? 3 or 4?
Remember that 3S1P is normally written as 3S.
The picture posted by @acdoctor is 4S (or 4S1P - same thing). If you have 3 panels and you want them in series then it is the same as the picture but with one less panel. It is exactly what @MisterSandals described.
If you actually have 4 panels then you have 3 options: 4S, 4P, or 2S2P.
That's not a valid setup and not one of the 3 possible options I showed.I want to hook 3 in series and 1 panel in parallel.
Yes sir. I’ve purchased a growatt 3500 inverter 48 volts. With four panels in series I’m over voltage. With 2 in series and 2 parallel. I’m over amped. With the 4 panels, I want 3 panels in series and 1 panel in parallel. That configuration will be just right as for the V and amps for my inverter. Would that beLet’s revisit what you are trying to do? I now think you are trying to have 3 panels in series and a 4 th in parallel.
@rmaddy beat me to it
Inverter growatt SPF 3500 ES, has a limit of pv voltage of 450 volts. Max Amperage input is 18a. Max charge current 80a. 4 pv panels. 305 watts eachThat's not a valid setup and not one of the 3 possible options I showed.
Please post the specs I requested and we can help you get this setup correctly.
growatt spf 3500 ES. I have 4 pv panels. 305 watts, max voltage 36.8, current 8.30 amps, VOC 45.6.That doesn’t sound correct. I have a 3000 watt growatt it can take 145 VOC and 2000 watts of panels. What model do you have. Or a link to the manual. You may be making it harder than necessary.
450 VOCInverter growatt SPF 3500 ES, has a limit of pv voltage of 450 volts. Max Amperage input is 18a. Max charge current 80a. 4 pv panels. 305 watts each
growatt spf 3500 ES. I have 4 pv panels. 305 watts, max voltage 36.8, current 8.30 amps, VOC 45.6.
The problem is my lack of know how.4 panels with a Voc of 45.6 in series (total of 182.4V) is way lower than the max of 450V. I don't see the issue.