AC Loss and Other Researches with 5 m HTS Model Cables

The test facility developed in Russian Scientific R&D Cable Institute permits to perform extensive tests of heavily instrumented HTS cable models with length up to 5 m. Several HTS cables with different design have been developed and tested at this facility. The test programs included, besides usual critical current measurements, current distribution measurements among layers, joint resistance test, etc. The facility´s equipment permits digital measurements of voltage and current with high accuracy and, therefore, digital ac loss analysis in model cables. In this paper we present the details of the test facility and results of tests and ac loss measurements in few 5 m model cables. ac losses in model cables made of 1 G and 2 G wires and other cable parameters are discussed and compared.