Good day Members,

Challenge 1.

Under what section should this question go? ( Inverter or general)

 

Challenge2.

When installing a "Deye/Sunsynk" Hybrid inverter in accordance to the local regulations and that of the manufacturer this get challenging as I see so many variations on the "AC protection DB box" between the inverter and the house DB.

Some installers use a Earth Leakage "switch" in this AC Protection DB box and some dont. The manual show only a AC breaker. 

The AC feed to Inverter from the grid gets taken after a main switch from house DB before the earth leakage. (" Inverter fed from main DB, not through earth leakage.)

Then the output of inverter through an earth leakage.

Then surge protection SPD is required by the manufacturer for warranty.

Is there a guru member that can share a "correctly" wired "AC protection DB box" between Deye/Sunsynk and mains DB with components like the SPD, EL and breakers?

Thanks 

 

4 hours ago, nam-hunt said:

Good day Members,

Challenge 1.

Under what section should this question go? ( Inverter or general)

 

Challenge2.

When installing a "Deye/Sunsynk" Hybrid inverter in accordance to the local regulations and that of the manufacturer this get challenging as I see so many variations on the "AC protection DB box" between the inverter and the house DB.

Some installers use a Earth Leakage "switch" in this AC Protection DB box and some dont. The manual show only a AC breaker. 

The AC feed to Inverter from the grid gets taken after a main switch from house DB before the earth leakage. (" Inverter fed from main DB, not through earth leakage.)

Then the output of inverter through an earth leakage.

Then surge protection SPD is required by the manufacturer for warranty.

Is there a guru member that can share a "correctly" wired "AC protection DB box" between Deye/Sunsynk and mains DB with components like the SPD, EL and breakers?

Thanks 

 

Don't have a schematic but the idea is to use the AC input after the main switch before the E/L through its own breaker. E/L on the output side of the inverter.

1 hour ago, Scorp007 said:

Don't have a schematic but the idea is to use the AC input after the main switch before the E/L through its own breaker. E/L on the output side of the inverter.

Thanks for your reply, so why does the second box in the attached photo not have a EL? 

42 minutes ago, nam-hunt said:

Thanks for your reply, so why does the second box in the attached photo not have a EL? 

Because it's in the 1st box and from the 1st box it is wired to the DB that houses all the MCBs for loads like plugs, lights etc. and the high loads like stove, geyser, pool pump etc.

Wires criss-cross between the 2 DBs in the pictures. Not sure what the orange DC SPD is doing in the AC protection DB.

This is my take based on the 2 pictures.

Edited October 8, 20223 yr by Scorp007