Minimisation of coupling losses in multiwire superconducting cables

The effect of the construction parameters of a multiwire cable on its operational characteristics is discussed. It is shown that when the number of wires is changed, a minimum occurs on the curve of the total coupling losses versus number of wires (total cross section is constant). The minimum position depends, in general, on the total cross section of the cable and the ratio between the transverse resistances of wire and cable. Calculation formulae for defining optimization construction are presented.