Current Redistribution in an SSC Strand during a Quench
Current redistribution in SSC strands due to current diffusion is calculated during a quench. Current redistribution occurs on the order of tens of microseconds. The copper core and sheath geometry and resistivity significantly affect the current redistribution. Heating in excess of steady state occurs while the current redistributes. This excess heating could contribute to enhanced quench propagation velocities. The excess heating due to current diffusion driven redistribution is compared to that in the theory of enhanced quench propagation.
KeywordsHeat Generation Joule Heating Current Diffusion Outer Sheath Excess Heating
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- 1.K.T. Hartwig, P. Zolliker, D. Yu, S.W. Van Sciver, and A. Khalil, Fabrication and performance of an aluminum stabilized composite superconductor, “Advances in Cryogenic Sngineering,” Vol. 28 (1982), pp. 805–813.Google Scholar
- 3.A. Devred and C. Meuris, Analytical solution for the propagation velocity of normal zones in large matrix-stabilized superconductors, Proc Ninth Int Conf Magnet Technology (MT-9) (Eds. C. Marinucci and P. Weymuth) SIN, Villigen, Switzerland (1985), pp. 577–580.Google Scholar