Volt-ampere rating of air-core superconducting power transformers

The authors point out that air-core superconducting power transformers have the potential of serving not only as power transformers but also as shunt reactors when used in power transmission systems having large capacitances. Here, the rated primary volt-amperes, volt-amperes as a shunt reactor, and related quantities are analyzed and their relations to the magnetic coupling factor and magnetizing reactance of the transformer are clarified. >