Wave Propagation in a DC Superconducting Cable Part II: Parametric Effects

This paper studies wave propagation in several designs of dc superconducting cables. DC conventional cables are also included for the purpose of comparison. For a multiconductor cable system, undesirable transient voltages may develop across parts that are not designed to withstand high voltages. The effects of several parameters were studied to limit these voltages; these are voltage rating, number of conductors, conductor resistances, earth resistivity, terminal grounding resistances of the "grounded" conductors at the origin and dielectric constants. Voltage rating, conductor resistances, and terminal grounding resistances seem to influence the transient performance of a multiconductor cable significantly. The effect of finite earth resistivity is insignificant.