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Deye Hybrid Neutral bonding when off grid.


TonyH
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As I have researched I have discovered that the Deye neutral needs to be bonded to earth to prevent a floating neutral, when the inverter is off grid. The manual doesn't discuss the topic. Does anyone know if one of the auxiliary terminals can be used to drive a relay to earth the neutral? The auxiliary terminal is 1 -12. 1 and 2 are for the battery temperature probe and 3 and 4 are for the CT. I have searched and found no other information. Deye has as yet not replied to my query. Perhaps they are still on holiday. If someone can help it would be greatly appreciated.

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Thank you Vassen. If I can't get a signal from the Deye I will have to use your suggestion. I am concerned that the grid may be up but the Deye off grid as the PV's and or batteries have enough power to keep off grid. In this situation the Deye Inverter will disconnect from the grid which will allow for a floating earth. I am making assumptions now. Regards

 

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Hi Vassen, I didn't answer why I have chosen a Deye. There are two reasons. I live in Scottburgh where the temperatures can easily reach 40C and I wanted an inverter with a fan. Secondly I liked the smart power feature. I will investigate the Sunsynk as I haven't put in my order yet. Regards

 

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1 hour ago, TonyH said:

Hi Vassen, I didn't answer why I have chosen a Deye. There are two reasons. I live in Scottburgh where the temperatures can easily reach 40C and I wanted an inverter with a fan. Secondly I liked the smart power feature. I will investigate the Sunsynk as I haven't put in my order yet. Regards

 

What size deye are you looking at. I have the 8kw sunsynk and it has a fan. I think only the 5kw and 3.6kw sunsynk inverters do not have fans. Very happy with going for the sunsynk over the Deye. 

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Hi All, I have checked out the Sunsynk and it looks fine. I will have an East West configuration so the 2 MPPTs was essential. I was concerned about the two reports that the Deye cause a buzz on some equipment. Thank you all for your input.

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7 hours ago, Achmat said:

What size deye are you looking at. I have the 8kw sunsynk and it has a fan. I think only the 5kw and 3.6kw sunsynk inverters do not have fans. Very happy with going for the sunsynk over the Deye. 

I intend to put a 5kw inverter in. The installation manual of the 5kw shows a fan. I will check this out. Thank you for the comments

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7 hours ago, Achmat said:

What size deye are you looking at. I have the 8kw sunsynk and it has a fan. I think only the 5kw and 3.6kw sunsynk inverters do not have fans. Very happy with going for the sunsynk over the Deye. 

Hi Achmat, I intend to buy a 5kw system. I checked the manual of the Sunsynk and the 5kw shows a fan. After the comments I am most likely going to go the Sunsynk route.

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On 2021/01/07 at 5:00 PM, TonyH said:

As I have researched I have discovered that the Deye neutral needs to be bonded to earth to prevent a floating neutral, when the inverter is off grid. The manual doesn't discuss the topic. Does anyone know if one of the auxiliary terminals can be used to drive a relay to earth the neutral? The auxiliary terminal is 1 -12. 1 and 2 are for the battery temperature probe and 3 and 4 are for the CT. I have searched and found no other information. Deye has as yet not replied to my query. Perhaps they are still on holiday. If someone can help it would be greatly appreciated.

did you find a solution?

is it bad not to bond neutral to earth ?

what floating neutral mean exactly?

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Hi, yes the Deye can be used to drive a relay when the Inverter is on Island mode. You will have to contact them which contacts to use. Before I decided on Sunsynk I did send Deye China a request about which terminals to use but I received no feed-back.  

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A floating neutral happens when the Inverter switches to Island mode. There is no connection between the Grid Neutral and the Neutral when on Island mode. On Grid mode the neutral gets the reference from the earth back at the Eskom distribution box. Legally the neutral of the inverter output is not allowed to be bound to the Grid neutral. When on island mode the auxiliary output should drive a relay which connects the output neutral to an earth spike, when on island mode. 

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On 2022/01/20 at 7:10 PM, TonyH said:

A floating neutral happens when the Inverter switches to Island mode. There is no connection between the Grid Neutral and the Neutral when on Island mode. On Grid mode the neutral gets the reference from the earth back at the Eskom distribution box. Legally the neutral of the inverter output is not allowed to be bound to the Grid neutral. When on island mode the auxiliary output should drive a relay which connects the output neutral to an earth spike, when on island mode. 

does floating neutral is the cause of the noise that coming out of my equipment ?

my pc is producing a white noise only when i am on deye

 

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On 2022/01/20 at 7:03 PM, TonyH said:

Hi, yes the Deye can be used to drive a relay when the Inverter is on Island mode. You will have to contact them which contacts to use. Before I decided on Sunsynk I did send Deye China a request about which terminals to use but I received no feed-back.  

Hello.. Did you get any feedback? I have a Deye 5kw and want to know where to do this.. 

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