Affiliations: [a] Budapest University of Technology and Economics, Egry
Jozsef utca 18, H-1111, Budapest, Hungary | [b] Ben-Gurion University of the Negev, P.O.Box 653, 84105
Beer-Sheva, Israel
Correspondence:
[*]
Corresponding author: Dr. Istvan Vajda, Department of Electrical
Machines and Drives, Budapest University of Technology and Economics, Egry
Jozsef utca 18, H-1111 Budapest, Hungary. Tel.: 36 1 4632961; Fax: 36 1
4633600; E-mail: vajda@supertech.vgt.bme.hu
Abstract: The concept of an all-superconducting (AS) mini power plant (MPP)
model is presented. An experimental HTS fault current limiter (FCL) for the
protection of the generator unit of the AS MPP model was designed. During its
lifetime the HTS FCL can be activated thousands of times. Duration tests were
performed on the HTS FCL to determine the dependence of the value of the
limited current and the voltage of the FCL on the number of activations of the
device. The experiments have shown that the parameters of the HTS FCL are
approximately constant after three thousand activations. This result indicates
that the relevant parameters of the HTS ring used in the device are
approximately constant, and that the FCL can be designed and used in the
network with predictable parameters.
Keywords: high temperature superconductor, fault current limiter, mini power plant
