Transformer system

[0030]One or more embodiments of the inventive subject matter described herein provide for flexible transformer systems and methods that are capable of accommodating multiple standard primary to secondary voltage ratios in an electric power grid as well as providing an adjustable short-circuit impedance to match that of a failed transformer to be replaced. One or more embodiments include tapped voltage-varying windings that enable selection of a transmission class voltage among multiple taps at the low voltage side with the actuation and adjustment of a voltage switch, implementation of a method for selecting the transformer leakage reactance without changing the voltage ratio with impedance-varying windings and the actuation of an impedance switch, and arranging and electrically connecting all conductive windings in order to minimize short-circuit forces and dielectric stresses.

[0031]One or more technical effects of the subject matter described herein contribute to the enhanced resili