Hi All,

Does anyone have experience with the neutral/earth link that sunsynk mentions in their manual.

No mention is made in the deye manual with regards to off-grid operation and the floating voltage that can be present between the neutral and earth.

I currently have a deye 8kw installed and when I simulate a Eskom failure a reading of about 95Vac is read between earth and neutral. As soon as Eskom is returned around 1.5Vac between neutral and earth. This indicates that i will have to install a link on the inverter output side for the neutral and earth

Any comments appreciated

I think my 8kW Deye has a similar issue ... but it reads 130V between neutral and earth ( think - I did not measure it).  It is suspected to cause my earth leakage trips when Eskom power is retsored.  Is this something that can be set on the inverter? Same question as yours I suppose, @schalkvstaden 

I read elsewhere that the Deye neutral needs to be bonded to earth to prevent a floating neutral, when the inverter is off grid.  I'm no electrician so have no clue what that means. 

Even more concerning - when neutral is floating, your RCD will not operate as intended; basically you don't have any earth fault protection in that case...

If you look at the diagram in this post:

There is a relay wired in (next to the battery, below the inverter block), and in the inverter there is a "to R1 coil" label. That is the neutral bonding device that is added.

I know there has recently been a change in the Deye design around neutral bonding; I don't know exactly what, though.

ETA: where your neutral is floating, you should not be able to get a CoC (but we all know what that is worth...); you should solidly fail a earth leakage test when islanding (a test that should be performed, but is often forgotten about).

Edited December 10, 20213 yr by P1000

I have a 8kW Deye( not switched on as yet) and the bonding has bugged me for while now. But i would think a relay coil is connected to the edge conectors( ATS and 240V), then the normaly open contacts get wired to the LOAD Neutral and Earth. But in the programing the ATS must be in enabled. When the GRID fails the ATS output activates the relay closing the contacts which  then bonds the earth and neutral. When Grid returns the relay drops away unbinding the bonding. I have not experimented with this yet as my inverter is not in operation yet. I suggest someone with a set up that is running to check if the ATS/ 240 output wil energise a relay. This is only a suggestion.