Recovery characteristics after current limitation of high temperature superconducting fault current limiting transformer (HTc-SFCLT)

Author

Kurupakorn, C. ; Kojima, H. ; Hayakawa, N. ; Goto, M. ; Kashima, N. ; Nagaya, S. ; Noe, M. ; Juengst, K.-P. ; Okubo, H.

Author_Institution

Dept. of Electr. Eng. & Comput. Sci., Nagoya Univ., Japan

Volume

15

Issue

2

fYear

2005

fDate

6/1/2005 12:00:00 AM

Firstpage

1859

Lastpage

1862

Abstract

Superconducting Fault Current Limiting Transformer (SFCLT) is one of the promising superconducting power apparatus, since it has both functions of superconducting transformer in normal condition and superconducting fault current limiter in fault condition. In this paper, current limiting and the recovery tests of high temperature SFCLT (HTc-SFCLT) with MCP-BSCCO2212 bulk coils were performed at liquid nitrogen temperature. Experimental results revealed that the HTc-SFCLT could successfully recover into the superconducting state by itself immediately after the fault clearance. Moreover, the recovery criterion of HTc-SFCLT as a function of load current was clarified.

Keywords

current transformers; fault current limiters; high-temperature superconductors; superconducting coils; superconducting transformers; MCP-BSCCO2212; coils; fault clearance; high temperature superconductor; liquid nitrogen temperature; load current; recovery tests; superconducting fault current limiter; superconducting power apparatus; superconducting state; superconducting transformer; Current limiters; Fault current limiters; Fault currents; High temperature superconductors; Nitrogen; Performance evaluation; Power system faults; Power system stability; Superconducting coils; Testing; MCP-BSCCO2212; recovery; superconducting fault current limiter; superconducting transformer;

fLanguage

English

Journal_Title

Applied Superconductivity, IEEE Transactions on

Publisher

ieee

ISSN

1051-8223

Type

jour

DOI

10.1109/TASC.2005.849314

Filename

1440016