The Growatt 5000 inverter can use the AC input to supplement the solar power to assist in charging the battery or supplying AC loads.
The AC INPUT is labeled in the attached picture
Ground | L | N
...and it expects 230 volt input.
I could run red and black phase outputs from a double-pole breaker in my USA service panel to the L and N terminals of the inverter, but would this work if the neutral terminal is expecting 0V and the L terminal expecting 230V AC? Can the neutral terminal of the AC in actually swing between + and - 120V so long as the line terminal sees the same voltage but at opposite polarity?
Would the Growatt neutral terminal on the "AC INPUT" possibly short to ground if fed this way? Or do the L and N terminals simply pull current so long as there is a voltage difference between them, even such that it's OK if the N terminal is actually seeing 120V AC?
Also, the manual is not clear to me, but it seems you can change a programming setting for the AC input to work with as little as 90V AC, but it doesn't say why you would need this, or specifically if you need to do this when using on a split-phase utility such as in the USA.
Thanks!
The AC INPUT is labeled in the attached picture
Ground | L | N
...and it expects 230 volt input.
I could run red and black phase outputs from a double-pole breaker in my USA service panel to the L and N terminals of the inverter, but would this work if the neutral terminal is expecting 0V and the L terminal expecting 230V AC? Can the neutral terminal of the AC in actually swing between + and - 120V so long as the line terminal sees the same voltage but at opposite polarity?
Would the Growatt neutral terminal on the "AC INPUT" possibly short to ground if fed this way? Or do the L and N terminals simply pull current so long as there is a voltage difference between them, even such that it's OK if the N terminal is actually seeing 120V AC?
Also, the manual is not clear to me, but it seems you can change a programming setting for the AC input to work with as little as 90V AC, but it doesn't say why you would need this, or specifically if you need to do this when using on a split-phase utility such as in the USA.
Thanks!