Superconducting fault current limiter development

Conference · Fri Mar 01 04:00:00 EST 1991 · IEEE Transactions on Magnetics (Institute of Electrical and Electronics Engineers); (United States)

OSTI ID:5901514

Ito, D; Tsurunaga, K; Yoneda, E S; Sugiyama, Y ^[1]; Hara, T; Okaniwa, K; Hoshino, H; Yamamoto, T ^[2]

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1. Toshiba Corp., Kawasaki (Japan)
2. Engineering Research Center, Tokyo Electric Power Co., 2-4-1, Nishi-Tsutsujigaoka, Chofu, Tokyo, 182 (JP)

The authors of this paper develop and test a 400 V-100 A class fault current limiter wound with AC superconducting wire having ultra-fine NbTi filaments. The limiter consists of non-inductively wound superconducting trigger coils and a superconducting limiting coil which acts as a reactor. Excessive fault currents initiate quenching in the trigger coils and these currents, which have flown in trigger coils in non-fault condition, are commutated from the trigger coils to the limiting coil. In the experiment, the authors have succeeded in limiting a fault current level to 120 A with the limiter whose terminal voltage at the limiting condition was 420 V.

• OSTI ID: 5901514
• Report Number(s): CONF-900944--
• Conference Information: Journal Name: IEEE Transactions on Magnetics (Institute of Electrical and Electronics Engineers); (United States) Journal Volume: 27:2
• Country of Publication: United States
• Language: English

Related Subjects

665412* -- Superconducting Devices-- (1992-)
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
ALLOYS
ALTERNATING CURRENT
CURRENT LIMITERS
CURRENTS
DESIGN
ELECTRIC CURRENTS
ELECTRICAL EQUIPMENT
ELECTRICAL FAULTS
ELECTRONIC CIRCUITS
EQUIPMENT
FILAMENTS
NIOBIUM ALLOYS
PERFORMANCE TESTING
PULSE CIRCUITS
SUPERCONDUCTING WIRES
TESTING
TITANIUM ALLOYS
TRIGGER CIRCUITS
WIRES