I'm trying to provide ~25kVA of split phase 120/240V 60Hz to a residence with two 15kVA 240V Quattro units. Even with a decent load balance, one 100A Autotransformer can't handle enough power. Can I parallel two of them? Does anyone have a wire diagram for paralleling autotransformers for neutral forming?
Am I better off just using four 10kVA 120V Quattro units (two pairs natively producing split phase) and not having the load balancing of an Autotransformer?
Also, does anyone know what the power losses are of the 100A autotransformer under load and no-load?