November 23, 20223 yr I hope someone can assist. I'm in the middle of my installation and have done a lot of research into what is possible or not possible with the Deye inverter. One of my aims is to channel excess PV production during the day to my non-essentials. For this I understand I should choose the "zero export to CT" function and leave the "Sell solar" un-ticked. When I do this on my inverter the load drops to zero and I can't see what energy source is used to power my home. I've also since realised that I can't see non-essentials on the load on the inverter and then when I select "zero export to CT" I don't see the essentials either. I know the positioning of the CT is important. The installer promised me its installed just after the main trip where the mains comes into the DB - so upstream from essentials and non-essentials. What am I missing or could it be the CT that wasn't installed as explained?
November 23, 20223 yr 30 minutes ago, TT5 said: What am I missing or could it be the CT that wasn't installed as explained? It sounds like the CT (current transformer) is installed the wrong way around, there is an arrow on the CT, check whether its pointing to the inverter or to the grid and then turn it around, so the arrow points in the other direction and try again, that should hopefully sort you out... Edited November 23, 20223 yr by Kalahari Meerkat
November 23, 20223 yr Author OK, will ask the installers to check. From what I've read elsewhere on these forums it sounded like fitting it the wrong way around would result in the values inverting (being negative rather than positive) rather than disappear, but I'm desperate so hope that could be it. Also saw now that the CT is connected to 3 and 4 on the Deye instead of 5 and 6 suggested by some. Could this make a difference?
November 27, 20223 yr On 2022/11/23 at 7:50 AM, TT5 said: OK, will ask the installers to check. From what I've read elsewhere on these forums it sounded like fitting it the wrong way around would result in the values inverting (being negative rather than positive) rather than disappear, but I'm desperate so hope that could be it. Also saw now that the CT is connected to 3 and 4 on the Deye instead of 5 and 6 suggested by some. Could this make a difference? @TT5, where you able to resolve your issue. I just moved from Growatt to Deye and I am experiencing the same issue as well. I changed the CT to point the other direction and nothing happened then I changed it back. My CT is pointing to the inverter direction. Will appreciate your feedback.
November 27, 20223 yr On 2022/11/23 at 7:50 AM, TT5 said: Could this make a difference? Yes, if the CT is connected at the wrong input on the inverter it would not be seen/measurement not used... So, check your manual and see where it is supposed to be connected and rectify it, if it is wrong...
April 21, 20233 yr Hi I am really struggeling with my Deye 8kw CT, it does not show a reading on the inverter. I tried to change the direction, installed a new cable but just cannot get a reading. The CT is giving a 7,5 volt reading but the Inverter sees nothing. The CT is connected to ports 3 and 4. I also see that the Inverter is setup as a slave and when I change it to primary a bell goes off. I am prepared to pay someone to sort out the issue - I am lossing money because my non-essntials are not assisted by solar. Regards Dirk
April 21, 20233 yr 13 minutes ago, DirkStruwig said: Hi I am really struggeling with my Deye 8kw CT, it does not show a reading on the inverter. I tried to change the direction, installed a new cable but just cannot get a reading. The CT is giving a 7,5 volt reading but the Inverter sees nothing. The CT is connected to ports 3 and 4. I also see that the Inverter is setup as a slave and when I change it to primary a bell goes off. I am prepared to pay someone to sort out the issue - I am lossing money because my non-essntials are not assisted by solar. Regards Dirk On your settings do you have zero export to CT checked/enabled ? And the CT coil must be arrow pointing towards the inverter side. You say slave? do you have 2 inverters connected? Edited April 21, 20233 yr by WannabeSolarSparky
April 21, 20233 yr 6 minutes ago, mzezman said: On the 8kw shouldbt the CT be on ports 5 and 6? 5kw is 3 and 4 That's correct AFAIK.
April 23, 20233 yr Guys THANK YOU very much!! - this solved my issue and everything is working perfectly. I checked the documentation again and there is nothing mentioned about ports 5 and 6, so why is Deye manuals so wrong?? Dirk
May 12, 20233 yr Hi Dirk, So just to understand, your CT was connected to ports 3,4 and then you swopped it to 5,6? Can you now see home consumption figures when the grid is on and do you have zero export to ct ticked? Thanks!
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