After looking through threads on this forum and reading my country's national electric code I'm more confused than when I started.
I have a small 24 V system w/ 920 Wp of panels and a 3000 VA AiO EAsun/Powland inverter. Its main purpose is to power my shed (mainly my heater's water pump - about 120 W) and my internet access gear - about 55 W. Its secondary purpose is to power the house (essential hardware only) during a severe power outage.
Currently the pump and internet gear are plugged into a 500 VA UPS that charges the battery from a house outlet.
Now, while testing the AiO (NOT connected to the grid power) I found out that it has what I believe is called a "floating neutral". Even though I was supplying ground from the house ground, testing with a plug tester was showing no ground. Testing for live showed live only on the live wire, as expected. I decided to bond the neutral to the ground at the inverter output, right before the 16 A GFCI that supplies the (test) power to the gear. Now the plug tester shows the plug is wired correctly, but this is not the real working condition because:
1. I need to connect the AiO to the grid to charge the batteries in winter, when the solar would not be enough to top them off.
2. I need to wire the same output into the house (there is a house manual transfer switch that switches the live and neutral only) and with the N-G bond at the inverter output my understanding is that I will either be tripping the house GFCI or route the whole neighborhood through my property ground.
As the pump and the internet gear are on a separate connection from the house (they share the ground through the UPS when the power is out - I hear a relay clicking and I believe it is the neutral-ground bonding connection that is being made when the power goes out), how can I get the setup to work correctly with grid powered AiO? The AiO gets the grid from the same panel as the house, but through a different, 16 A breaker. House has a 25 A breaker.
I have a small 24 V system w/ 920 Wp of panels and a 3000 VA AiO EAsun/Powland inverter. Its main purpose is to power my shed (mainly my heater's water pump - about 120 W) and my internet access gear - about 55 W. Its secondary purpose is to power the house (essential hardware only) during a severe power outage.
Currently the pump and internet gear are plugged into a 500 VA UPS that charges the battery from a house outlet.
Now, while testing the AiO (NOT connected to the grid power) I found out that it has what I believe is called a "floating neutral". Even though I was supplying ground from the house ground, testing with a plug tester was showing no ground. Testing for live showed live only on the live wire, as expected. I decided to bond the neutral to the ground at the inverter output, right before the 16 A GFCI that supplies the (test) power to the gear. Now the plug tester shows the plug is wired correctly, but this is not the real working condition because:
1. I need to connect the AiO to the grid to charge the batteries in winter, when the solar would not be enough to top them off.
2. I need to wire the same output into the house (there is a house manual transfer switch that switches the live and neutral only) and with the N-G bond at the inverter output my understanding is that I will either be tripping the house GFCI or route the whole neighborhood through my property ground.
As the pump and the internet gear are on a separate connection from the house (they share the ground through the UPS when the power is out - I hear a relay clicking and I believe it is the neutral-ground bonding connection that is being made when the power goes out), how can I get the setup to work correctly with grid powered AiO? The AiO gets the grid from the same panel as the house, but through a different, 16 A breaker. House has a 25 A breaker.
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