English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Tools annual

Global: Zendy Free Plan

Global: Zendy Tools monthly

Global: Zendy Plus monthly

A Cable-in-Conduit (CIC) conductor, which is made of many strands of less than 1 mm in diameter, is often applied for a forcedcooled coil, because it has many advantages such as high stability, reduced AC loss and high mechanical strength. Generally, a triplet type CIC conductor consists of 3 × n × m, where n and m are integers; 3 to 6, since it is imagined that every strand could be geometrically arranged in uniform. However, the cable is compressed to about 60% in the conduit after squeezed, and thereby the strands are slightly deviated from the original arrangement. These deviations cause different inductances among strands, and hence a current distribution in the conductor is not homogeneous during excitation. The imbalanced current can restrict the ramp rate of the current in a large coil, and enhanced AC loss in large superconducting machines due to long decay time constants of loops between strands. It is very difficult to control the current distribution in cross section of the CIC conductor, because displacements of strands cannot be precisely estimated during compaction into the conduit. We propose a new coaxial multi-layer CIC conductor as shown in Fig. 1 and demonstrate that its current distribution is controllable. The coaxila multilayer CIC conductor is composed of several layers wound on around the center tube for cooling, while each layer has its own pitch. Since each strand is tightly fixed by the winding, it cannot move during the fabrication. All strands in each layer have the same performance and cannot deviate from the original positions during compression process. Consequently the strand arrangement

Fundamental Design based on Current Distribution in Coaxial Multi-Layer Cable-in-Conduit Conductor