Hi this my first post on here. I am looking for some help and clarification for system grounding. my system consists of a mulitplus 24/3000 70-50 , 2200 watt solar array, 2 VE charge controllers mppt 150/70, ve battery protect, ve smart shunt and a honda eu3000is. In my cabin a have a panel box that receives the AC out from my multiplus to supply my loads in the cabin. MY question is where should i install the earth to ground. My gen has a floating neutral so if i bond the neutral and ground bus bars in the panel box and connect that to a grounding rod that will provide a proper ground for my system when using the generator. However if I am reading the info correct about my mulitplus it has a dynamic bond which will ground the chassis of the multiplus to the neutral while its in inverter mode…if this happens will that create 2 bonded neutrals in the system? So do I disable the dynamic bond in the multiplus or do I unbond the ground and neutral in my panel and connect my mulitplus ground to a earth ground rod. Also do the batteries, and charge controllers have to be grounded to a earth ground rod. Please any help with this would be greatly appreciated.
Good question and disappointed nobody answered it .this community doesn’t have as many users as it used to before the migration .check the victron Facebook group
Ok I’m not a professional but as I understand it the ground neutral bond should be as close to power source as possible. So if your layout is simple and short distances you can have a permanent ground neutral bond in the main panel and disable the ground relay in the multiplus .as long as you don’t have any loads before the panel .
Code will vary by country/region but in this neck of the woods the bonding is done at the first means of disconnect.
If your gen and inverter both feed directly to the main breaker panel, that is where you would bond them.
As far as the bonding relay in the multi plus, check the owners manual. I’m pretty sure when I was flipping through mine back in the spring I had seen something in there telling you to disable it in this kind of scenario
If you plan on grounding the pv, which is a wise idea, the pv and charge controller should be grounded through a separate grounding circuit and ground rod. This reduces the likelihood of lightning feeding through your entire electrical system and in the case of a ground fault in the main panel your pv won’t become energized