Is it recommended to ground the neutral line in an off grid solar system?
A nonisolated inverter would be by definition wired this way, right?
I believe that in home electrical systems neutral is connected to ground in one location. There is a ground bus and a neutral bus and they are linked in one location near the main home supply and the earth connection.
As I understand it when grounding the neutral line,
- If there is an earth fault on the neutral line nothing happens
- If there is an earth fault on the live line the inverter circuit breaker will trip. (if no other protection trips first)
If you do not ground the neutral line a GND fault will either ground the neutral line or the live line. I believe the disadvantage being that if the live line is grounded it is confusing for future problems unless there is an indication of the fault.
In a home system is there more danger because of the higher voltage transmission lines?
Would there be a difference if there was or was not a GFDI (Ground Fault Protector)?