Abstract
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High temperature superconducting (HTS) materials and technologies have become available to design and build HTS power cables, and the HTS cable characteristics have been well verified both in theory and in power transmission systems for practical applications. The HTS power cables, power networks and performances are described in detail to reveal the HTS cable technology and its trend. The necessary improvements required have been comprehensively identified to reach the goal of industrial and board application of HTS cables and transmission technologies which are potential critical elements for future power system renewables.