Share

Test results of the 100 kWh SMES model coil: alternating-current loss performance.

[In Japanese. / En japonais.]

Author(s) : HAMAJIMA T., HANAI S., WACHI Y., et al.

Type of article: Article

Summary

In order to establish a technology needed for a small-scale 100 kWh SMES device, a SMES model coil was fabricated. Performance tests were carried out at the Japan Atomic Energy Research Institute (JAERI) in 1996. After that, the coil was installed in facilities of the Lawrence Livermore National laboratory (LLNL) and tested in 1998, in collaboration between Japan and the USA. The alternative current loss results at LLNL were in good agreement with those at JAERI . It was reconfirmed from the results that the coupling loss of the coil consists of two components with short and long time constants. The authors found out from the signals of Hall probes that the current loops with long decay time constants were induced in the CIC conductor. These loops could enhance additional alternative current loss in coil. To reduce the alternative current loss, the authors made small-sized CIC conductor of strands having a CuNi surface, and fabricated the small coil. The measured alternative current loss of the small coil was reduced to about 1/6. The CuNi surface on the strands was demonstrated to be effective to reduce alternative loss in the coil.

Details

  • Original title: [In Japanese. / En japonais.]
  • Record ID : 2000-2371
  • Languages: Japanese
  • Source: Cryogenics/ Cryog. Eng. - vol. 34 - n. 6
  • Publication date: 1999/06
  • Document available for consultation in the library of the IIR headquarters only.

Links


See other articles in this issue (2)
See the source

Indexing