The features of SCGs with superconducting field
winding are as follows:
Larger capacity, smaller size and lighter weight: The
purpose for developing SCG is for larger capacity by
higher magnetic field of superconducting winding.
Conversely SCG are of smaller size and of lighter weight
than conventional one for same capacity. Electric loading is larger by adopting air-gap armature winding, too.
The outcomes of development higher density generators
in Japan national project will make SCG much smaller,
lighter and more inexpensive.