Growatt SPF 5000 ES

[eagle1_77]

Hello,
I just completed an off-grid installation, or almost, since I'd like to take advantage of the GRID when my solar production and battery are out!
I have a small technical room for my pool. In this room, I have a heat pump and the pool filtration pump. When everything is powered on, they consume about 3 kW.
To avoid drawing on my 6 kW system in my house , I installed a system with a GROWATT SPF 5000 ES inverter and 10x 435 W panels wired in 2x5 and // mode. I added a Pylontech USC2000C.
When solar production is poor and my battery is at 20% of its SOC, I'd like to switch the inverter to bypass mode. I ran some tests this morning, and in SolarFirst mode, the bypass mode works very well. Except that
In this inverter, the neutral and ground are factory-connected to the AC OUT output. Therefore, to operate safely, I can't have my utility input (GRID) which has already a grounded neutral and my OUT output have a second one (do we agree?).
Is anyone familiar with this type of inverter? I'd like to know if there's a way to disconnect this grounded neutral internally and take advantage of the dry contact outputs to manage the grounding depending on the inverter's operating mode?
Thanks and have a good Sunday!

 

[Kid Solar]

Hello Mr. Bot!

Where do you come from?

Who wrote your script?

What are you trying to achieve here?

Where do you send your collected information?

What is your purpose?

 

[timselectric]

Hello,
I just completed an off-grid installation, or almost, since I'd like to take advantage of the GRID when my solar production and battery are out!
I have a small technical room for my pool. In this room, I have a heat pump and the pool filtration pump. When everything is powered on, they consume about 3 kW.
To avoid drawing on my 6 kW system in my house , I installed a system with a GROWATT SPF 5000 ES inverter and 10x 435 W panels wired in 2x5 and // mode. I added a Pylontech USC2000C.
When solar production is poor and my battery is at 20% of its SOC, I'd like to switch the inverter to bypass mode. I ran some tests this morning, and in SolarFirst mode, the bypass mode works very well. Except that
In this inverter, the neutral and ground are factory-connected to the AC OUT output. Therefore, to operate safely, I can't have my utility input (GRID) which has already a grounded neutral and my OUT output have a second one (do we agree?).
Is anyone familiar with this type of inverter? I'd like to know if there's a way to disconnect this grounded neutral internally and take advantage of the dry contact outputs to manage the grounding depending on the inverter's operating mode?
Thanks and have a good Sunday!

That inverter has dynamic bonding. It only creates the bond, when not passing the grid through to the loads. You don't have to do anything, it's automatic.

 

[Daddy Tanuki]

How many radish do you have wires in parallel for the battery bank? Are they splitting ?