Superconducting fault current limiter

Details Superconducting fault current limiter Superconducting fault current limiter

1994-12-12

1997-04-01

Gaffin, Jeffrey A.

Electricity: electrical systems and devices

Safety and protection of systems and devices

Superconductor protective circuits

505850, 505883, H02H 900

Patent

active

056172800

ABSTRACT:
A current limiter having a plurality of current limiting units provided for electric paths constituting a plurality of phases. Each current limiting unit is constituted by a superconducting coil functioning as a first current limiting element formed in a non-inductive winding manner by connecting two superconducting coils in series, which superconducting coils are wound in opposite directions and equal in size and number of turns, and a superconducting coil functioning as a second current limiting element connected in parallel to the first current limiting element and having a predetermined impedance value. These current limiting units are contained within a cryostat and separated by a magnetic shield member for electromagnetically isolating the respective phases.

REFERENCES:
patent: 3267306 (1963-09-01), Hassel et al.
patent: 4015168 (1977-03-01), Massar
patent: 4409579 (1983-10-01), Clem et al.
patent: 4700257 (1987-10-01), Bekhaled
patent: 5021914 (1991-06-01), Tsurunaga et al.
Toshiba Review 1991 vol. 46 No. 5 "Superconducting Fault Current Limiter" pp. 417-419, T. Hara, et al.

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