schmism
Solar Addict
If your trying to back feed the main panel with generator power and subsequently supply generator power to the inverters, then yes.
That's the thing. I don't think I'm going to be back feeding.If your trying to back feed the main panel with generator power and subsequently supply generator power to the inverters, then yes.
You are mixing up backfeeding the grid with using a branch breaker to backfeed the QO buss in the subpanel.That's the thing. I don't think I'm going to be back feeding.
2 Inverters.
"AC In" on Inverters (for grid assist) going from 60A breaker on main panel.
"Ac Out / Load" on the inverters going to new sub panel, with a 60A breaker.
I don't see why I would need the back feed kit, because the sub panel, would not have a direct connection to the main panel.
Wouldn't the inverters take care of any potential back feeding?
The priority I'm going to be using on the inverts is...Solar #1, if no solar then Battery, if no battery then Grid.
The LV6548's are off grid inverters. Nothing will be going back to the main panel. Main panel just feeds grid to the inverters.OK Reality check time. If I'm wrong forgive me, but I'd rather say this in case you haven't thought it through. First, with a panel that size you likely have 200AMP service at your house. That's 200 Amps per leg. Your inverters will give you about 55 Amps per leg. You will overload your system badly if you try to run your entire house on 2 of the 6548 inverters. Sorry it just isn't possible.
If you are going to use the panel you linked to, then yes you need to use the backfeed breaker kit, but that is, in my humble opinion, a bad idea. I suggest you pause, think about how much power & which circuits you want / need to move into the sub-panel, then spec from there
You dont need a backfeed kit. Use a transfer switch like in the Danf(Dan Fitzpatrick) video I linked. He is an electrician by trade.That's the thing. I don't think I'm going to be back feeding.
2 Inverters.
"AC In" on Inverters (for grid assist) going from 60A breaker on main panel.
"Ac Out / Load" on the inverters going to new sub panel, with a 60A breaker.
I don't see why I would need the back feed kit, because the sub panel, would not have a direct connection to the main panel.
Wouldn't the inverters take care of any potential back feeding?
The priority I'm going to be using on the inverts is...Solar #1, if no solar then Battery, if no battery then Grid.
Your diagram looks like 100% what my goal is.I guess I should let the electricians reply, as I am NOT an electrician!
That being said, my install looks like the attached picture. It works, and no sparks, so I must have done something right. Again, I tried to copy DanF's design.
Split phase config with shared neutral. Ground bond ONLY main panel.
Correct on all fronts. You can post the PM I sent you if you wish.Your diagram looks like 100% what my goal is.
Is this diagram, it almost looks like there 3 panels? Main, Power Panel, and Barn Sub Panel correct? The device labeled power panel, is that just a super small sub panel, with room for 2 breakers? If so where, does the "main" tie into that? Also as I'm reading it, (3) 60 amp breakers total? Did you use the "standard circuit breakers" (about $30) or the "main" (about $80)?
Just want to confirm the purpose of the transfer switch is to transfer load back to 100% grid in the event that the inverters would fail? Correct?
Thanks in advance.
Physical view.Correct on all fronts. You can post the PM I sent you if you wish.
Did you use 4 AWG for the A/C in-out? I have 6 AWG on mine, only because that is what I used on what I had prior. I want to do some cleaning up and just want to make sure the 4 AWG will actually fit.Physical view.
Damn, looking at those pics, I really need to clean up the PV wiring!I used #6 on all the AC connections.
Lol. Ok, you got me beat. ?
I am not an electrician, and your setup may be different, but I believe only one ground bond should be used at the main. Subpanels are not bonded. Please check your local NEC code.I have a question about the panel being fed by the inverters. Is it not treated the same way you would a transformer as a new source of power? If so the panel it feeds would then have the neutrals and grounds bonded. the reason I ask is that I'm building system using the same inverters. I saw in the videos posted that this has been an issue for the MPP lv6548.