CUED Publications database

Superconducting fault current limiter design using parallel-connected YBCO thin films

Ainslie, MD and Baba, J and Salvucci, V and Nitta, T and Fukunaga, T and Shibuya, M and Torii, S and Matsumura, T and Kumagai, T (2009) Superconducting fault current limiter design using parallel-connected YBCO thin films. IEEE Transactions on Applied Superconductivity, 19. pp. 1918-1921. ISSN 1051-8223

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Superconducting Fault Current Limiters (SFCLs) are able to reduce fault currents to an acceptable value, reducing potential mechanical and thermal damage to power system apparatus and allowing more flexibility in power system design and operation. The device can also help avoid replacing circuit breakers whose capacity has been exceeded. Due to limitations in current YBCO thin film manufacturing processes, it is not easy to obtain one large thin film that satisfies the specifications for high voltage and large current applications. The combination of standardized thin films has merit to reduce costs and maintain device quality, and it is necessary to connect these thin films in different series and parallel configurations in order to meet these specifications. In this paper, the design of a resistive type SFCL using parallel-connected YBCO thin films is discussed, including the role of a parallel resistor and the influence of individual thin film characteristics, based on both theory and experimental results. © 2009 IEEE.

Item Type: Article
Divisions: Div C > Materials Engineering
Depositing User: Cron Job
Date Deposited: 17 Jul 2017 19:25
Last Modified: 19 Jul 2018 07:06