Abstract
A superconducting persistent current switch with an off-state resistance of 10 <inline-formula xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink"> <tex-math notation="LaTeX">$\Omega$</tex-math></inline-formula> for an experimental Nb <sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">3</sub> Sn superconducting coil has been designed, fabricated, and tested. The superconducting switch is thermal controlled, consisting of the bobbin of brass, the noninductive superconducting winding, the heater, and the support bar. A temperature sensor is fixed in the bobbin to monitor the temperature of the superconducting switch. The superconducting switch operates at 4.2-K temperature connected in parallel with the power supply and the experimental Nb <sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">3</sub> Sn superconducting coils. One GM cryocooler is employed to cool down the whole system. Based on the finite-element method, the numerical simulations of the switching performance of temperature distribution during heating and cooling cycles are performed. The results of the closed-loop operation show that the switch can successfully operate in the conduction-cooled magnet. The maximum closed-loop current is 170 A.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
