Qualification of MCP BSCCO 2212 bulk material for use in resistive current limiters

Melt cast processed BSCCO 2212 is a very promising material option for use in resistive current limiters. The required compact elements with long conductor lengths can be manufactured by cutting tubes to bifilar coils. The critical current density and its homogeneity were examined on such coils at the projected operation temperature T = 65 K. As a result we obtain J(c) = 3960 A/cm(2) +/-5%. It was also shown, that the coils can be equipped with a metallic shunt. In addition the limiting behaviour of the material and the reliability of the electric bypass were tested on shunted 5 mm-rods. Effective limiting was achieved at any load up to 100 V/m. (C) 2002 Elsevier Science B.V. All rights reserved.