In Russian Scientific R&D Cable Institute we continue studies to develop as compact as possible 2G HTS power cables for electric power systems. Compact cables should have minimized diameter compared to other co-axial HTS cables developed before. Recently we developed the cable prototype with four HTS layers in the core and two layers in the shield. Numerical optimization of compact cables has been used together with manufacturing technology to produce small diameter cables with uniform current distribution. The first cold test of the compact cable demonstrated that we were able to control the homogeneous current distributions in a compact cable with the inner diameter of the core ~10 mm and the outer diameter of the shield ~20 mm. In this work we present more test results of this cable, including, mechanical test and high voltage tests. New test results demonstrated very high parameters of the compact cable developed. The compact cables perspectives for electric systems are discussed.
[1]
V. S. Vysotsky,et al.
First Model Power Cables Made of Russian 2G HTS Wires and their Test Results
,
2014
.
[2]
E. V. Blagov,et al.
Hybrid Energy Transfer Line With Liquid Hydrogen and Superconducting $\hbox{MgB}_{2}$ Cable—First Experimental Proof of Concept
,
2013,
IEEE Transactions on Applied Superconductivity.
[3]
S. Fetisov,et al.
AC Loss and Other Researches with 5 m HTS Model Cables
,
2011,
IEEE Transactions on Applied Superconductivity.
[4]
A. Malozemoff,et al.
Theory of ac loss in power transmission cables with second generation high temperature superconductor wires
,
2010
.