Hi all,
I'm planning to install a grid assisted solar system on my home (not back-feeding) Like most, my home electrical system has a neutral-ground bond at the first point of entry (meter base). For my install, I believe that I want an inverter that does not bond the neutral to ground *at any time* whether passing grid power through, or running off of battery power via inverter. I've seen conflicting information (including in filterguy's data sheet) about whether the Growatt units bond neutral when making power from battery. There seems to have been a change in firmware removing access to the dry contact. This is a very important thing for me and may lead me to select an entirely different setup if it can't be confirmed. I'd love if someone with a growatt (particularly the 6k or 12k low freq. models) would put a clamp meter on the ground wire and neutral wire when operating in battery mode and under load to verify that there is no current on the ground conductor and there is current on the neutral appropriate to the loads. For reference, I plan to bring inverter power into the house (into a sub-panel) via an interlocked breaker (intended for generator) that does not switch neutrals (neutral bond remains in place for entire system under any condition)
Thanks!
I'm planning to install a grid assisted solar system on my home (not back-feeding) Like most, my home electrical system has a neutral-ground bond at the first point of entry (meter base). For my install, I believe that I want an inverter that does not bond the neutral to ground *at any time* whether passing grid power through, or running off of battery power via inverter. I've seen conflicting information (including in filterguy's data sheet) about whether the Growatt units bond neutral when making power from battery. There seems to have been a change in firmware removing access to the dry contact. This is a very important thing for me and may lead me to select an entirely different setup if it can't be confirmed. I'd love if someone with a growatt (particularly the 6k or 12k low freq. models) would put a clamp meter on the ground wire and neutral wire when operating in battery mode and under load to verify that there is no current on the ground conductor and there is current on the neutral appropriate to the loads. For reference, I plan to bring inverter power into the house (into a sub-panel) via an interlocked breaker (intended for generator) that does not switch neutrals (neutral bond remains in place for entire system under any condition)
Thanks!