Measurements of the performance of BSCCOHTS tape under magnetic fields with a cryocooled test rig

The use of high-temperature superconducting (HTS) materials for electric power applications is being realized in prototype systems. A test rig was designed and fabricated that uses a 6-T cryocooled magnet with an 20.3 cm warm bore. Inserted in the bore is a stainless steel vacuum vessel that has a Cryomech GB37 cryocooler to conductively cool the sample. Critical current measurements were made on BSCCO-2223 tapes under externally applied perpendicular and parallel magnetic fields. A description of the test rig design and results from a series of measurements will be presented.