Fault current limiter

Details Fault current limiter Fault current limiter

1989-06-07

1990-10-02

Reynolds, Bruce A.

Electrical resistors

Resistance value responsive to a condition

Magnetic field or compass

338334, 361 19, H01L 4300

Patent

active

049610660

ABSTRACT:
A current limiter according to the invention has two resistors, the first one consisting of a thin layer of a material which may become superconducting and the second one is a resistance layer applied on first resistor, the latter resistor layer being dimensioned such that its resistance becomes considerably lower than the resistance of the superconducting layer when it is not superconducting, however with a resistance of such a magnitude that, in the current circuit in question, it limits the current to a permissible value. For mechanical support of the resistors, an insulator is included in the current limiter, and the superconducting material is applied on insulator. The resistors and the insulator are arranged immersed into a cryotank.

REFERENCES:
patent: 4438474 (1984-03-01), Palce
patent: 4470090 (1984-09-01), Carr, Jr.
patent: 4490769 (1984-12-01), Boenig
patent: 4568907 (1986-02-01), Hurtle
patent: 4700257 (1987-10-01), Bekhaled
Journal of Applied Physics; 49(4); Apr. 1978; pp. 2546-2550; K. E. Gray and D. Fowler; "A Superconductive Fault-Air-Rent Limiter".

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