I have two MultiPlus 24/3000/70 inverters running in parallel to an Autotransformer to step-up to 120/240 in my RV. I would like to use this system as a battery backup for my house during a power outage. The manual suggests in a mobile application the ground relay should be wired and enabled, but in stationary applications it should not be used. How should the ground relay be configured? Is there any danger of the relay being enabled while the RV supplies power to my home during an outage?
