All things Sunsynk (Deye, Inge, etc...)

Kosmik said:
View attachment 1498259
Click to expand...

Looks right on first glance but I also have a sunsynk not a deye.

Maybe give the new guy a chance to configure and feedback to the electrician. If I had to guess id say there is a wiring issue rather than a configuration issue based on what you've shown. I could be wrong though. Pics of the install and wiring will also help if you feel like posting.
 
Fcon_Vpro said:
Usually your solar array only creates power when there is a load ie battery charging, ups load, etc
You only know how much solar power is available when the mppt tries to power loads.
You won't see an array availability with no load
Click to expand...
Just a followup, I see a drop in the supposed output but a lot of our stuff is quieter now including I assume geyser so it makes sense that figure dropped from what you said as I would not expect the panel output to drop as the sun rose higher. So it will not show excess unless I was exporting to grid? Only what the home can draw?
 
Kosmik said:
Just a followup, I see a drop in the supposed output but a lot of our stuff is quieter now including I assume geyser so it makes sense that figure dropped from what you said as I would not expect the panel output to drop as the sun rose higher. So it will not show excess unless I was exporting to grid? Only what the home can draw?
Click to expand...
this tracks with how it all should work. hope they manage to sort your cabling
 
Kosmik said:
Just a followup, I see a drop in the supposed output but a lot of our stuff is quieter now including I assume geyser so it makes sense that figure dropped from what you said as I would not expect the panel output to drop as the sun rose higher. So it will not show excess unless I was exporting to grid? Only what the home can draw?
Click to expand...
Correct
 
Hello friends..
Asking a question for a friend here
Noticed the charging is working REALLY well from PV.. but from Grid, eh not so much.
I have it set as follows:

1679746332715.png

Any danger in raising the Max grid charge current to something a bit more spicy ?
Say.. 60Amps.. or more ...
 
Anthro said:
Hello friends..
Asking a question for a friend here
Noticed the charging is working REALLY well from PV.. but from Grid, eh not so much.
I have it set as follows:

View attachment 1498331

Any danger in raising the Max grid charge current to something a bit more spicy ?
Say.. 60Amps.. or more ...
Click to expand...
Which model and how many batteries do you have? Generally nothing wrong with increasing the grid charge amps, just make sure you're at or lower the max charge for the battery
 
Willie Trombone said:
It won't magically start it charging. What battery does your friend have? Max charge current depends on the battery.
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It does charge, but only at the mentioned rate of 40 Amps

He has 1x 7.4Kw SMD and 1x 14.3Kw SMD


Mzezman said:
Which model and how many batteries do you have? Generally nothing wrong with increasing the grid charge amps, just make sure you're at or lower the max charge for the battery
Click to expand...
12 Kw 3 Phase Deye and as mentioned above
1x 7.4Kw SMD and 1x 14.3Kw SMD
 
Anthro said:
Hello friends..
Asking a question for a friend here
Noticed the charging is working REALLY well from PV.. but from Grid, eh not so much.
I have it set as follows:

View attachment 1498331

Any danger in raising the Max grid charge current to something a bit more spicy ?
Say.. 60Amps.. or more ...
Click to expand...
40a at 48v is about 2000w
60a at 48v is about 3000w
Check the bms screen and it will say what current you can charge at.
 
Anthro said:
It does charge, but only at the mentioned rate of 40 Amps

He has 1x 7.4Kw SMD and 1x 14.3Kw SMD



12 Kw 3 Phase Deye and as mentioned above
1x 7.4Kw SMD and 1x 14.3Kw SMD
Click to expand...
Yeah then you should be good to increase. 21kwh gives you a mac 0.5C of approx 10kw = 200amps or so. Limits will be enforced by the BMS and cabling
 
Hmm someone had a similar issue to mine and they say their CT was connected incorrectly on its pins which I assumed is the signaling on the cat5 to the inverter. Are these crimped or just wired?

This was the other person's solution.

Turned out the electrician connected the CT to pins 3&4 (CT1) instead of pins 5&6 (CT2). I fixed that and everything works correctly now.
Click to expand...

Just came home and took photo before and after on meter, used 1.4kw in three hours so I don't think anything is coming to the db.
 
Willie Trombone said:
CT is just two wires, no connector. Pins are different for 5 and 8kw units.
www.sunsynk.org

Using a CT Coil

Basic understanding of using a CT coil it is used to control the export or import of the power from the grid this is very important and care must be taken when using CT, to ensure it is wired correctly Note Black is NEUTRAL
www.sunsynk.org www.sunsynk.org
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Hmm so then I assume they using one of the cat5 pairs then to run to inverter. Pretty sure it's clamped correctly as that's exactly what the main elec told the other so more than likely is wrong on on the inverter then if this is the issue.
 
But help me understand this. The inverter is wired to certain circuits for load. This works if the inverter is in mains failure. I assume the inverter has a high rated input feed and the load is the output but if sending to the board, how does it send power to non load circuits, ie balance of the db, is there another cable?
 
Willie Trombone said:
100A is the rating of the breaker on my FW 10/8 battery. I'd say that's a bit close to the edge.
Click to expand...
Interesting, I have 125 in my breaker so can do 100 with no issues. Battery is also rated for 50a and I have 2. BMS also targets 100 whenever possible
 
Kosmik said:
But help me understand this. The inverter is wired to certain circuits for load. This works if the inverter is in mains failure. I assume the inverter has a high rated input feed and the load is the output but if sending to the board, how does it send power to non load circuits, ie balance of the db, is there another cable?
Click to expand...
Same cable
 
Kosmik said:
But help me understand this. The inverter is wired to certain circuits for load. This works if the inverter is in mains failure. I assume the inverter has a high rated input feed and the load is the output but if sending to the board, how does it send power to non load circuits, ie balance of the db, is there another cable?
Click to expand...
Kosmik said:
Then in theory, it could be supplying the house but just not reporting it? Trying to understand how the "backflow" works.
Click to expand...
Your main eskom wire comes in and gets split (parallel seperation): 1 goes to inverter and 1 goes to non essential db.
The ct coil is placed around the wire ahead of this split.
The ct tells your inverter how much power is being drawn feom eskom and then the inverter backfeeds equivalent or less power which gets absorbed by the nearest requirement ie your non essentials
So very little will go back past your eskom meter
 
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