I have the 100A/32 autotransformer set up on the output of my inverter, to create split-phase 120V/120V from the 240V output.
For the first year, this AT has worked flawlessly.
Last month, I experienced two trips, I believe due to >32A imbalance on the legs. (I had a new load that was quite large and that was coming on when I wasn't aware of it.)
Since then, I have now had two more trips, both under relatively high load (about 50A) but not 100A, but with almost no differential current flowing on the center tap.
I am trying to figure out what to do next. Is there a chance my breaker (it looks like a 2-pole, 100A DIN rail style custom-size model) could just need to be replaced? If so, is that something I can do in the field? If so, is there a way to source a replacement breaker from Victron?
