That's a great question, especially because during my last sim I had a Xfr bus breaker popup. We just caught it because we saw what we had lost on the overhead and then we just fixed it by reset and it did not bother us anymore (at least the TRE behind did not)
I'm having a look at the Elec schematic right now... if you loose Xfr bus 2 for example, and you deselect GEN 2, the relay goes on alternate... right... therefore the Xfr bus Cb should control the "normal" position relay ? I'm just wondering... waiting for explanations !
