Switching and Protection Solutions for 800VAC AC Combiner Boxes in Photovoltaic Plants

This application note details switching and protection solutions for 800VAC AC combiner boxes used in utility-scale photovoltaic plants with 1500VDC string inverters. It covers the benefits of AC combiners, including overcurrent protection, disconnecting means, and cost savings, while also discussing trends like multi-MPPT and virtual central inverter architectures.