I am designing a system for a 3-phase battery backup application using 3 Multiplus inverter/chargers. Where do I find information/documentation/guidelines for developing the design and sizing each unit for the 3-phase application? I have searched this web site, but most of the articles are discussing problems with a system already installed.
Also, I am currently using a Multiplus for a single-phase battery backup application and have developed a custom HMI using the VE.Bus and MK2.2 module. I know the 3-phase application requires communication between the 3 Multiplus units via the VE.Bus ports. Will I be able to continue to use one of the open VE.Bus ports for the custom HMI communication?
There is some online documentation at professional.victron.com regarding 3-phase and parallel system design but it is highly recommended you hire someone knowledgeable with these systems.
When properly set up, the three Multis appear as a single unit on the VE.Bus to a GX device or other control system via the MK to USB interface.
Thanks for the advice. I have logged in there and been “digging” for information on the 3-phase systems.
Also reviewing applications along this line – appears to be several, especially outside the US.