That can depend on where you are checking the rotation,if its at the meter like us where Im located its basically a guessing game,because of how the electrican has wired his stuff.....but if you know how it is generated and wire your bank in that order,you should be half way there....then you would most likely wire your secondary the same way,A-Phase on the primary side to A-phase on the secondary side,and so on ,then again your polarity can change that...its kind of hard to explain without knowing where you are checking the rotation.....Ive been around lots of people that leave it clock-wise at the bank,weather urd or overhead.....but here that doesnt really apply...