Present Status and Recent Developments of the Twisted Stacked-Tape Cable Conductor

The high magnetic field performance of a 40-tape twisted stacked-tape cable (TSTC) conductor made of 4-mm-width 0.1-mm-thick REBCO tapes was successfully tested. The critical current was 6.0 kA, with the n-value of 35, at 4.2 K with a background field of 17 T. No cyclic load effect was observed between 10 and 17 T with the maximum Lorentz load of 102 kN/m. Various issues, such as sample length, nonuniformity of termination resistances, and soldered joint of a coated tape cable, with regard to a TSTC conductor are discussed. Large-scale conductor designs of various scalable TSTC conductors are discussed, taking into account current densities and stabilizers.

[1]  Satoshi Ito,et al.  Design and development of high-temperature superconducting magnet system with joint-winding for the helical fusion reactor , 2015 .

[2]  J. Minervini,et al.  Cabling Method for High Current Conductors Made of HTS Tapes , 2011, IEEE Transactions on Applied Superconductivity.

[3]  W. Goldacker,et al.  Improvement of Superconducting Properties in ROEBEL Assembled Coated Conductors (RACC) , 2009, IEEE Transactions on Applied Superconductivity.

[4]  C. Barth,et al.  FBI Measurement Facility for High Temperature Superconducting Cable Designs , 2014, IEEE Transactions on Applied Superconductivity.

[5]  R. Wesche,et al.  Design and Strand Tests of a Fusion Cable Composed of Coated Conductor Tapes , 2014, IEEE Transactions on Applied Superconductivity.

[6]  F. Grilli,et al.  Modeling and simulation of termination resistances in superconducting cables , 2014, 1409.2624.

[7]  L. Chiesa,et al.  Analytical investigation in bending characteristic of twisted stacked-tape cable conductor , 2015 .

[8]  M. Takayasu,et al.  Electromechanical Investigation of 2G HTS Twisted Stacked-Tape Cable Conductors , 2014, IEEE Transactions on Applied Superconductivity.

[9]  Joseph V. Minervini,et al.  HTS twisted stacked-tape cable conductor , 2011 .

[10]  Hubertus W. Weijers,et al.  Characterization of a high-temperature superconducting conductor on round core cables in magnetic fields up to 20 T , 2013 .

[11]  L. Chiesa,et al.  Conductor Characterization of YBCO Twisted Stacked-Tape Cables , 2013, IEEE Transactions on Applied Superconductivity.

[12]  Development of Termination Methods for 2G HTS Tape Cable Conductors , 2014, IEEE Transactions on Applied Superconductivity.

[13]  L. Muzzi,et al.  Design of an Industrially Feasible Twisted-Stack HTS Cable-in-Conduit Conductor for Fusion Application , 2014, IEEE Transactions on Applied Superconductivity.

[14]  Wilfried Goldacker,et al.  Investigation of a Rutherford cable using coated conductor Roebel cables as strands , 2013 .

[15]  Joseph V. Minervini,et al.  Investigation of twisted stacked-tape cable conductor , 2012 .

[16]  G. Tomassetti,et al.  Bending Tests of HTS Cable-In-Conduit Conductors for High-Field Magnet Applications , 2016, IEEE Transactions on Applied Superconductivity.

[17]  Makoto Takayasu,et al.  Temperature-and field dependent characterization of a twisted stacked-tape cable , 2015, 1502.06728.