Vapour cooled current leads-operations and control for Nb3 Sn coil test Panchal Rohit1,*, Patel Rakesh1, Sonara Dashrath1, Mahesuria Gaurang1, Nimavat Hiren1, Garg Atul1, Christian Dikens1, Panchal Pradip1, Purwar Gaurav1, Tomar Arvind Kumar1, Ghate M.1, Raj P.1, Prasad Upendra1, Tanna Vipul1 1Institute for Plasma Research, Bhat, Gandhinagar-382 428GujaratIndia *E-mail ID: rpanchal@ipr.res.in
Online published on 4 December, 2023. Current leads are essential components to power the superconducting magnets from room temperature 300 K power supply end to 4.5 K terminals of superconducting magnets. At IPR, recently we have carried out Nb3 Sn superconducting coil test and validation using indigenously developed 10 kA rated vapour cooled current leads (VCCLs). These VCCLs are operated reliably in different scenario such as initial cooldown, electric current (ramp up, ramp down and log time steady state condition), cold with no current and quench etc. A dedicated 12 kA / 16 V Switch Mode Power Supply (SMPS) was used to power the superconducting magnet via current leads. One pair of VCCLs are used to test Nb3Sn proto type coil. This paper describes operation and control of VCCLs for Nb3 Sn coil test with results obtained during the experiment. Top Keywords VCCL, Nb3Sn magnet, Power supply, Dewar, PID. Top |