I'm trying to build a split phase grid assist off-grid system, which will allow me to use grid power when I don't have enough battery power left.
Just in case my inverters broken, I want to switch to grid only (not through inverter line mode) as a backup.
Did some research, seems a manual transfer switch is a good option, but it cost too much, and I found several ones are all for single phase use, not sure whether they fit my split phase build or not.
I'm thinking use interlock kit to do the manual switch. But I can't figure out how to connect ground and neutral to my main panel.
Devices are 2 eg4 6500w inverters, will be in parallel split phase mode. Which will give me 110v/240v 13kw output. My whole tiny house peak load is about 14kw, I never used that much power at the same time.
Below is a rough design, missing some breakers & surge protectors, I'll add them later.
My question is how do I connect Grid G, Grid N, G1, N1, G2, N2? Or this design is totally wrong.
Any advice would be appreciated.
****** Update: For anyone who has the same question, look at below link:
https://diysolarforum.com/resources/grounding-and-bonding-for-eg4-6500-ex-inverters.322/
Just in case my inverters broken, I want to switch to grid only (not through inverter line mode) as a backup.
Did some research, seems a manual transfer switch is a good option, but it cost too much, and I found several ones are all for single phase use, not sure whether they fit my split phase build or not.
I'm thinking use interlock kit to do the manual switch. But I can't figure out how to connect ground and neutral to my main panel.
Devices are 2 eg4 6500w inverters, will be in parallel split phase mode. Which will give me 110v/240v 13kw output. My whole tiny house peak load is about 14kw, I never used that much power at the same time.
Below is a rough design, missing some breakers & surge protectors, I'll add them later.
My question is how do I connect Grid G, Grid N, G1, N1, G2, N2? Or this design is totally wrong.
Any advice would be appreciated.
****** Update: For anyone who has the same question, look at below link:
https://diysolarforum.com/resources/grounding-and-bonding-for-eg4-6500-ex-inverters.322/
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