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Design considerations for an inductive high T/sub c/ superconducting fault current limiter

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5 Author(s)
L. S. Fleishman ; Krzhizhanovsky Power Eng. Inst., Moscow, Russia ; Y. A. Bashkirov ; V. A. Aresteanu ; Y. Brissette
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The authors investigate the design feasibility of an inductive iron core superconducting fault current limiter. A simplified thermo-electromagnetic analysis of the operating behavior of the fault current limiter is presented. This design is based on a high temperature superconducting shield surrounding a magnetic circuit with a primary winding generating an AC magnetic field. During fault conditions the field penetrates the core resulting in a large impedance, and thus a limitation of the fault current. In the analysis of this design, for voltages and currents up to 25 kV root-mean-square (RMS) and 2000 A RMS, it is shown that recuperation times for superconductors operating at liquid nitrogen temperatures are acceptable.<>

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IEEE Transactions on Applied Superconductivity  (Volume:3 ,  Issue: 1 )