Engineering Commons^™

Superconducting Windings In A Power Transformer, An Old Question With A New Answer, James M. Feldman, Bell A. Cogbill, M. S. Sarma

Sarma Mulukutla

This is the second of two papers examining the practicality of superconducting windings for large power transformers. The issues examined in this paper include elements of the behavior of superconducting tapes that would be important in power transformers, the refrigeration requirements for a step-up transformer of practical size, a coil structure appropriate to a superconducting winding and its cryogenic environment, current crowding in the end turns, and an estimate of the energy savings that a practical superconducting transformer could be expected to realize.