Superconductor current-limiting apparatus

Details Superconductor current-limiting apparatus Superconductor current-limiting apparatus

1991-09-16

1993-10-05

DeBoer, Todd E.

Superconductor technology: apparatus, material, process

High temperature , per se

Having tc greater than or equal to 150 k

505850, 505881, 361 19, 361 58, 323360, H02H 902

Patent

active

052505081

ABSTRACT:
The invention relates to superconductor current-limiting apparatus of the type having a magnetic core around which firstly a superconductor component is disposed, followed by an electric coil made of non-superconducting material, the apparatus being designed to be inserted in a line to be protected (L), the assembly constituted by the magnetic core (6A, 6B), the superconductor component (3A, 3B) and the electric coil (2A, 2B) forming a current-limiting unit which is connected in the line to be protected in series with a circuit-breaker. The apparatus has two current-limiting units contained in a single tank (13) filled with a dielectric cooling fluid (17), each superconductor component being disposed in an insulating cryostat (4A, 4B) filled with a cryogenic fluid, each magnetic core being part of a closed magnetic circuit, the tank having electrical bushings (14, 15, 16) for connecting the electric coils to the line to be protected via circuit-breakers (30A, 30B), the limiting units being assembled in parallel.

REFERENCES:
patent: 3617807 (1971-11-01), Kesselring
patent: 3629690 (1971-12-01), Massar
patent: 3703664 (1972-11-01), Cronin
patent: 3736439 (1973-05-01), Kesselring
patent: 4336561 (1982-06-01), Murphy
patent: 5140290 (1992-08-01), Dersch

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