Dependence of the Contact Resistance on the Design of Stranded Conductors

Abstrakt

During the manufacturing process multi-strand conductors are subject to compressive force and rotation moments. The current distribution in the multi-strand conductors is not uniform and is controlled by the transverse resistivity. This is mainly determined by the contact resistance at the strand crossovers and inter-strand contact resistance. The surface layer properties, and in particular the crystalline structure and degree of oxidation, are key parameters in determining the transverse resistivity. The experimental set-ups made it possible to find the dependence of contact resistivity as a function of continuous working stresses and cable design. A study based on measurements and numerical simulation is made to identify the contact resistivity functions.

Opis

Słowa kluczowe

stranded conductors, contact resistance, cable design, cable simulation, contact resistance measurement

Cytowanie

Sensors, vol.14, nr. 8, 2014, s. 13925-13942