SOFAR 8kW PV Installation: Opinions, Durability, Failures & Experiences with Inverters

Janusz_kk wrote:

I don't have room anymore, so it's full. I make two asymmetrical thongs because I have a 'swallow' which shades my sides a little

toolpusher wrote:

For this inverter it is the optimal range from 600V up.

adamac wrote:

Oh, Janusz_kk one more thing. You are probably too optimistic about the tension of work. Now in April on a sunny day I get about 33V from one panel, and during hot weather the voltage will drop for sure. In your position, for the calculation of the maximum power voltage, I would take around 30V.

Janusz_kk wrote:

Well, that's almost what I assumed in the panel parameter Vm in stc is 30.4V, times 13 gives 395.2V so don't worry

adamac wrote:

In addition to what I wrote, i.e. the range of maximum power and weight voltages, there is a greater current of a single string (15A). Unfortunately, it has a higher starting voltage (350V but there is no problem with that)

Janusz_kk wrote:

adamac wrote:

In addition to what I wrote, i.e. the range of maximum power and weight voltages, there is a greater current of a single string (15A). Unfortunately, it has a higher starting voltage (350V but there is no problem with that)

The current is max 15A, but the optimal voltage starts at 480V, and for 8.8kW it is 380V, so the difference is significant, and I will have 395V, so I will stay at 8.8kW because it will use this weaker string better.

adamac wrote:

Yes, that's why I also offered you this tl from my example, if you find it somewhere else.

adamac wrote:

480V has 11ktl-x.

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Janusz_kk wrote:

adamac wrote:

Yes, that's why I also offered you this tl from my example, if you find it somewhere else.

But you wrote about

adamac wrote:

480V has 11ktl-x.

that is, you wrote about 'ktl' and you thought about tl ' but I will not overpay, I will stay at this 8.8Kw ktl.

marwi123 wrote:

And if you are an electronics engineer and the warranty is not important, always with 8.8ktl You can switch to 11ktl or 12ktl, as 8.8ktl will be too weak

toolpusher wrote:

marwi123 wrote:

And if you are an electronics engineer and the warranty is not important, always with 8.8ktl You can switch to 11ktl or 12ktl, as 8.8ktl will be too weak

You don't even need to be an electronics engineer

toolpusher wrote:

See what the 4.4KTL-X looks like. The jumper probably works for you too.

prose wrote:

toolpusher wrote:

See what the 4.4KTL-X looks like. The jumper probably works for you too.

Because these are the same control modules, it's just about setting the jumpers.

adamac wrote:

Probably not only, this of my photos has 10kW at the factory, and the jumpers are set according to the previous information, such as 8.8 KTL-X.

toolpusher wrote:

Of course there is this information and I will tell you that even in this thread.

prose wrote:

th33nd wrote:

prose wrote:

Just switch to SW for more power ....
how to set up a txt file

Where's that file?
Will it change from 8.8kW 1100 to 11kW 1011?

Someone checked if the hardware is identical?

the sw3 switch in the 1234 positions usually has a down (1) up (0) power switch so we have settings for the power based on the photos received: 3.3kW 1001, 4.4kw 1111, 5.5kw 1110, 6.6kW 1101, 8.8kW 1100, 11kW 1011,

toolpusher wrote:

And this is how 5kW works after switching the jumper to 4.4KTL-X.