Title :
Study of a high-Tc superconducting magnet made with Bi-2212/Ag Rutherford cable
Author :
Nagaya, Shigeo ; Hirano, Naoki ; Minami, Masaharu ; Nakano, Toshihide
Author_Institution :
Electr. Power R&D Center, Chubu Electric Power Co. Inc., Nagoya, Japan
fDate :
3/1/2001 12:00:00 AM
Abstract :
A high temperature superconducting magnet using newly developed Bi-2212/Ag Rutherford cable was trial manufactured as a partial model for a 10 T magnet. The developed magnet consists of 4 double pancake coils constructed from a Rutherford cable with a critical current of 3.5 kA at 4.2 K, 0 T. The magnet has inside and outside diameters of 100 mm and 180 mm, respectively and is 75 mm long axially. The coil successfully operated with DC 1.25 kA and 1.5 kJ was stored stably. A maximum magnetic field of 2 T with A current of 1.47 kA was confirmed in liquid helium. Also, the authors performed excitation tests under the high-speed rate of change of magnetic field (0.54 T/S) and 300 cycles simulating alternating operation, and estimated the value of AC losses at 5.3 W using the change of liquid helium level
Keywords :
bismuth compounds; calcium compounds; copper compounds; magnetic fields; silver; strontium compounds; superconducting cables; superconducting coils; superconducting magnets; 0 T; 1.25 kA; 1.47 kA; 1.5 kJ; 10 T; 100 mm; 180 mm; 2 T; 3.5 kA; 4.2 K; 5.3 W; 75 mm; AC losses; Bi-2212/Ag Rutherford cable; Bi2Sr2CaCu2O-Ag; Bi2Sr2CaCu2O8-Ag; alternating operation simulation; critical current; double pancake coils; excitation tests; high-Tc superconducting magnet; magnetic field; superconducting coils; Critical current; Helium; Magnetic fields; Magnetic liquids; Performance evaluation; Superconducting cables; Superconducting coils; Superconducting magnets; Temperature; Virtual manufacturing;
Journal_Title :
Applied Superconductivity, IEEE Transactions on
