Abstract
A 3-phase high Tc superconducting fault current limiter with a rated power of 1.2 MVA has been built, tested, and installed in a power plant for an endurance test. The device is based on the “shielded iron core concept”. The superconducting part consists of a stack of Bi-2212 ceramic rings. They were fabricated by a special partial melt process. The nominal current and voltage of the device are 70 A and 10.5 kV, respectively. In 3-phase short circuit tests with a prospective fault current of 60 kA the current was limited to about 700 A in the first half wave and further to below 250 A after 50 ms.
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© 1998 Springer Japan
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Paul, W., Chen, M., Lakner, M., Rhyner, J., Widenhorn, L., Guérig, A. (1998). 1.2 MVA High-Tc Superconducting Fault Current Limiter. In: Osamura, K., Hirabayashi, I. (eds) Advances in Superconductivity X. Springer, Tokyo. https://doi.org/10.1007/978-4-431-66879-4_292
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DOI: https://doi.org/10.1007/978-4-431-66879-4_292
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