Title :
Insulation system test for the KSTAR central solenoid (CS) model coil
Author :
Han-Sung Kim ; Sang-Ho Kim ; Young-Hwan Kim ; Yong-Hwan Kim ; Kie-Hyung Chung ; Reed, R.P. ; Evans, D.
Author_Institution :
Dept. of Nucl. Eng., Seoul Nat. Univ., South Korea
fDate :
6/1/1999 12:00:00 AM
Abstract :
The insulation system for a tokamak superconducting magnet should ensure the mechanical and electrical reliability and must have resistance to the radiation environment during operation. The winding scheme of the whole KSTAR (Korea Superconducting Tokamak Advanced Research) CS (central solenoid) coil using Nb/sub 3/Sn CICC (cable in conduit conductor), it is found that there is considerable shear due to tensile force. To obtain a proper resin system two candidates were tested and compared with the ITER (International Thermonuclear Experimental Reactor) standard resin system as a benchmark. This work includes viscosity measurement, flexural strength, shear strength and thermal contraction at room temperature and 77 K. Test procedures and the results of each measurement are presented.
Keywords :
Tokamak devices; bending strength; epoxy insulation; insulation testing; niobium alloys; reliability; shear strength; superconducting coils; superconducting magnets; tin alloys; viscosity measurement; 20 C; 77 K; ITER standard resin system; International Thermonuclear Experimental Reactor; KSTAR central solenoid model coil; Korea Superconducting Tokamak Advanced Research; Nb/sub 3/Sn; Nb/sub 3/Sn cable in conduit conductor; electrical reliability; flexural strength; insulation system test; mechanical reliability; radiation environment resistance; resin system; shear; shear strength; tensile force; thermal contraction; tokamak superconducting magnet; viscosity measurement; Dielectrics and electrical insulation; Electric resistance; Insulation testing; Resins; Solenoids; Superconducting cables; Superconducting coils; Superconducting magnets; System testing; Tokamaks;
Journal_Title :
Applied Superconductivity, IEEE Transactions on
