That one is out of place.Good eye...I think the ground needs to stay...I removed the extra N
Fixed. So would that circular neutral loop feed any small amount of grid power into the inverters through their AC-OUT, when I have the interlocks as shown below?That one is out of place.
But there should be one from the outbuilding sub panel to the kitchen/ studio sub panel.
All circuit conductors should be ran together.
Hot/s, neutral, and ground.
There's also a circular neutral loop around the 4 lower panels.
But I don't really see any way to avoid it safety. With all of the back and forth power options. (Interlocked breakers)
So, just leave it as is.
NoSo would that circular neutral loop feed any small amount of grid power into the inverters through their AC-OUT, when I have the interlocks as shown below?
NoWhat if there's a shorter ground path directly to a ground rod? Would it be OK to run the ground separately, instead of running the longer way with the other wires?
Isn't that where the ground wire ends up at?No
The earth is not a good conductor.
The purpose of the grounding system is to provide a low impedance (resistance) path for fault current, back to the source.
The earth is high resistance.
NoIsn't that where the ground wire ends up at?
I I wouldn't do that. Because the neutral is not following the hots.I tried to fix the neutral loop, it would only cost an extra $112 to run two new 100ft #8 run in the same new conduit as the #4, and would share a #4 Neutral. My wire count would increase to 8 in the conduit, derating to 70%, so #4 (95a*.7) 66.5a, #8 would be (55a*.7) 38.5a. I think both those still fall within my breaker amp limits, and one could argue since the #8 would not be ON the same as a set of #4 the 70% derate would not be occurring, it would be 6 wires ON in the conduit at a time...so 80% derate. Do you think it's worth spending the $112 to help the "what if?" Too bad I can't figure a way to safely use the 100ft #4 for a bidirectionally feed/supply depending on which is ON (Grid or Inverter) and ditch the #8 altogether. But all I see is disaster with that scenario.
View attachment 184854
There's no problem with sharing a battery bank between different inverters or systems.Side question I've been thinking about...can you mix inverters connected to the same central battery bank? Looking forward, later if I were to replace two of my 6500ex with maybe 6000xp(s) on one side of my design...say inv #3 and #4, would this work if I did not connect the serial cable between all inverters, being of diff type...I would expect them NOT to communicate this way, but somehow manually configured the battery charging values accordingly?
In my last sketch, there are 5 wires, around the white text saying #4 AWG 100ft neutral. The white, both black, the blue and the red are all sharing the same conduit.I I wouldn't do that. Because the neutral is not following the hots.
But I'm not sure which conductors are sharing a conduit or path together.
So if I understand correctly.In my last sketch, there are 5 wires, around the white text saying #4 AWG 100ft neutral. The white, both black, the blue and the red are all sharing the same conduit.
Yep. Ok, I’ll keep two neutrals then.So if I understand correctly.
The main service panel, kitchen/ studio sub panel, and outbuilding sub panel, are all at the house. And everything else is at the garage/ barn?
If so, then technically one neutral would suffice. But the code would require two. And two would cover the "what if" situations.