Hybrid superconducting a. c. fault current limiter principle and previous studies

Conference · Wed Jan 01 04:00:00 EST 1992 · IEEE Transactions on Magnetics (Institute of Electrical and Electronics Engineers); (United States)

OSTI ID:5363781

Tixador, P; Brunet, Y; Leveque, J ^[1]; Pham, V D ^[2]

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1. CNRS-CRTBT/LEG, B.P. 166 X, 38042 Grenoble Cedex (FR)
2. GEC Alsthom, 130 rue L. Blum, 69611 Villeurbanne Cedex (FR)

This paper reports that one of the most promising uses of the low a.c. loss ultra fine wires in electrical devices is the fault a.c. current limiter. The superconducting a.c. current limiters may be separated in two kinds: the resistive and the inductive one. For the resistive limiter the superconducting winding triggers and assumes the limitation. For the inductive one the superconducting winding plays only as trigger while the fault current is limited by another winding superconducting or normal. In this case it may be hoped a limited heating of the superconducting coil and then a very short recovery time. It will enable to quickly restore the service. On the other hand the current in the trigger coil may be chosen lower than the rated current so that the choice of the superconducting wire may be easier. The use of a judicious magnetic circuit increases the performances of the inductive current limiter as it decreases the voltage drop in rated operation and the heating of the superconducting coil during fault.

• OSTI ID: 5363781
• Report Number(s): CONF-910662--
• Conference Information: Journal Name: IEEE Transactions on Magnetics (Institute of Electrical and Electronics Engineers); (United States) Journal Volume: 28:1
• Country of Publication: United States
• Language: English

Related Subjects

24 POWER TRANSMISSION AND DISTRIBUTION
240100 -- Power Systems-- (1990-)
240201 -- Power System Networks
Transmission & Distribution-- AC Systems-- (1990-)
665412* -- Superconducting Devices-- (1992-)
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
AC SYSTEMS
CURRENT LIMITERS
DESIGN
ELECTRIC GENERATORS
ELECTRICAL EQUIPMENT
ELECTRICAL FAULTS
ELECTROMAGNETS
EQUIPMENT
HYBRID SYSTEMS
INDUCTION GENERATORS
MAGNETS
POWER SYSTEMS
SUPERCONDUCTING COILS
SUPERCONDUCTING DEVICES
SUPERCONDUCTING MAGNETS
SUPERCONDUCTING WIRES
VOLTAGE DROP
WIRES