Title :
AC Losses of ReBCO Pancake Coils Measured by a Calorimetric Method
Author :
Lu, J. ; Bai, H. ; Gavrilin, A.V. ; Zhang, G. ; Markiewicz, W.D. ; Weijers, H.W.
Author_Institution :
Nat. High Magn. Field Lab., Tallahassee, FL, USA
Abstract :
During a field ramp of a ReBCO magnet, the heat dissipated by conductor AC losses may affect the magnet operation temperature, and significantly increase the liquid helium consumption. Therefore, the calculation and measurement of AC losses of ReBCO coils are very important. Understanding the AC losses behavior of ReBCO coils will allow prediction of AC losses for future ReBCO magnets.
Keywords :
calorimetry; coils; cryostats; dielectric losses; insulation; magnetic fields; magnetic shielding; superconducting magnets; AC losses; ReBCO double pancake coils; calorimetric method; conductor AC losses; cryostat; external magnetic fields; hysteresis loss contribution; liquid helium boil-off; liquid helium consumption; magnet operation temperature; magnetic shielding; radial field; resistive magnet; superconducting magnets; test coils; turn-to-turn electrical insulation; Coils; Conductors; Helium; Loss measurement; Magnetic hysteresis; Magnetic shielding; Superconducting magnets; AC losses; Coated conductors; coated conductors; coupling loss; high field magnet; hysteresis loss;
Journal_Title :
Applied Superconductivity, IEEE Transactions on
DOI :
10.1109/TASC.2014.2377562
