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My 9kw (soon to be 16,5kw) solar array with 3 inverters setup to generate 3 phase power

Aridom82

Aridom82

Learning addict
Joined
Aug 3, 2022
Messages
376
Location
Piedmont (Italy)
Hi i am very happy to present my system. Its up and working. Is my first solar project and i am not an electrician so there will be a lot of weird stuff at first look maybe :)
Anyway i want to thank to everybody here because i couldnt have made it without the wonderful information and support on this forum.
Ank me anything you want to know about it.
ext4.jpgext1.jpgext2.jpgext3.jpgint0.jpgint1.JPGint2.JPG
 
Nice clean install looks professional my only concern is no class t fuses and how are those heavy batteries attached to the wall I think I would put a stand under them for safety
 
Thanks! I am thinking changing the battery disconnects, and the blue wire is there because i already had a bunch of 35mm2 and 50mm2 very good wire but blue so i didnt want to spend more just to have it red
 
rodrick said:
Nice clean install looks professional my only concern is no class t fuses and how are those heavy batteries attached to the wall I think I would put a stand under them for safety
Click to expand...
the battery rack is attached with 6 M8 expansion bolts. Only one of these could withstand the weight of the three batteries with ease.
I will research class T fuses
Thanks!
 
Aridom82 said:
Thanks! I am thinking changing the battery disconnects, and the blue wire is there because i already had a bunch of 35mm2 and 50mm2 very good wire but blue so i didnt want to spend more just to have it red
Click to expand...
Your setup looks great, my only limited feedback is that I have many and have used many of those dc breakers you have in the system 1687430826986.png please do yourself a favor and get rid of them asap. I have had a wide range of experience with them and they don't seem to be even close to the correct amp rating and some don't pop fully so they can end up arcing and melting.
 
Aridom82 said:
Hi i am very happy to present my system. Its up and working. Is my first solar project and i am not an electrician so there will be a lot of weird stuff at first look maybe :)
Anyway i want to thank to everybody here because i couldnt have made it without the wonderful information and support on this forum.
Ank me anything you want to know about it.
View attachment 151889View attachment 151890View attachment 151891View attachment 151892View attachment 151893View attachment 151894View attachment 151895
Click to expand...
What inverters are those? Never seen ones completely white with no name on them.

Clean setup though..
 
featherlite said:
I think this is the same breaker for half the cost of that shown on Amazon.

baymarinesupply.com

Series 187 Marine Rated Circuit Breaker Surface Mount

Cooper Eaton Bussmann Series 187 Surface-Mount Marine-Rated Circuit Breakers: OEM for Blue Sea 7136-7149 Select your current rating above!
baymarinesupply.com baymarinesupply.com
Click to expand...
I see they are used in 6-48V applications? But my EG4 batteries get charged to 56V . I wonder if that will be a problem?
 
This is from another thread- Posted by Boltzmann-post number 6. https://diysolarforum.com/threads/8kw-inverter-and-battery-circuit-breaker.53278/
Boltzmann writes"I use a KETO 1 switch/fuse with my 5kW Solis inverter. The switch has two 160A fuses. I bought it from ITS Technologies in the UK. It's very, very substantial."

I didnt see it sold in the States, but I like the concept very much.
I would like to use something like that.
 
update-
I was searching the forum (for 2 days here the search did not work) and folks have
commented that those breakers are tested to 72 volts.
I am going to give one a try. The one in post 12
 
Last edited:
Shale MacGregor said:
Your setup looks great, my only limited feedback is that I have many and have used many of those dc breakers you have in the system View attachment 153913 please do yourself a favor and get rid of them asap. I have had a wide range of experience with them and they don't seem to be even close to the correct amp rating and some don't pop fully so they can end up arcing and melting.
Click to expand...
yes i started a thread to get help from folks in this forum to find an adecuate replacement
 
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