Greg,
One of my first call outs was to a substation that had its 12.6 KV Line 1 fault. When the Load Dispatcher gave me the go ahead, I stood clear and had our Power Controller close the line via SCADA. KABOOM!!! I had Power open the AC bus tie and reclose Line 1 uneventfully. I went over to one ATS and got different voltages A to A, B to B, and C to C. I jogged the air compressor, caused the ATS to transfer, and jogged the compressor again. Then I called the Load Dispatcher and told him they swapped the phase rotation. When they called an hour later, I had Power close the line with the bus tie open and did the measuements again after jogging the compressor. I wasn't willing to trust their phasing if they had already gotten the rotation wrong. With my luck, they would have switched the wrong 2 phases to correct the rotation.
Joe