To stevenal
The drawing does not indicate what is connected to T1 T2 or T3. But the way I interpet it, if C phase is connected to T1 and B phase to T2 and A phase to T3 then the phasing would be CBA or ABC if connected 123.
We are having a discussion about determining phase rotation of a generator from a one line diagram. The drawing in question has a rotation arrow moving in the counterclock wise direction. It also has phase indications of T1 @ 12'oclock, T2 @ 4 o'clock and T3 @ 8 o'clock. The opinion here is ABC...