Manufacturing and testing of MCP 2212 bifilar coils for a 10 MVA fault current limiter

Author

Elschner, Steffen ; Breuer, Frank ; Noe, Mathias ; Rettelbach, Thomas ; Walter, Heribert ; Bock, Joachim

Author_Institution

Univ. of Appl. Sci., Mannheim, Germany

Volume

13

Issue

2

fYear

2003

fDate

6/1/2003 12:00:00 AM

Firstpage

1980

Lastpage

1983

Abstract

A very promising option within the German 10 kV/10 MVA superconducting fault current limiter project CURL 10 is melt cast processed (MCP-) BSCCO 2212 bulk material. With tube shaped samples cut to bifilar coils and contacted in series, the required long lengths (160 m per phase) can easily be achieved. At the operating temperature of T=65 K the critical current density is near 4000 A/cm² and the voltage under limiting conditions reaches E_p=0.5 V/cm. The contribution describes the design, manufacturing and testing of the superconducting components. In particular the development and characterization of a suitable electrical shunt is focused. Finally the finished components are characterized with respect to electrical homogeneity and under various limiting conditions. It could be confirmed that the single components each meet all the requirements defined within the project.

Keywords

bismuth compounds; calcium compounds; critical current density (superconductivity); fault current limiters; high-temperature superconductors; strontium compounds; superconducting coils; 10 MVA; 10 kV; 65 K; BSCCO 2212 bulk material; Bi₂Sr₂CaCu₂O; bifilar coil; critical current density; electrical shunt; melt cast processing; superconducting fault current limiter; Bismuth compounds; Critical current density; Fault current limiters; Manufacturing; Shunt (electrical); Superconducting coils; Superconducting materials; Temperature; Testing; Voltage;

fLanguage

English

Journal_Title

Applied Superconductivity, IEEE Transactions on

Publisher

ieee

ISSN

1051-8223

Type

jour

DOI

10.1109/TASC.2003.812954

Filename

1212001