I've got a question concerning XFMR ratios and excitation. Assume a Wye/Delta 138kV to 13.2kV GSU (138kV/13.2kV = 10.455 turns). Are there any issues with using a Wye/Delta 138kV to 13.8kV GSU, if I adjust the taps to closely match the 10.455 (set tap at 144,900kV to yield 144.9kV/13.8kV=10.5...