Abstract
A high temperature superconducting cable may be based on a
centrally located cylindrical support, a so-called former. If
electrically conductive, the former can contribute to the AC
losses through eddy current losses caused by unbalanced axial and
tangential magnetic fields. With these measurements we aim at
investigating the eddy current losses of commonly used former
materials. A one layer cable conductor was wound on a glass fibre
reinforced polymer (GRFP) former. By inserting a variety of
materials into this, it was possible to measure the eddy current
losses of each of the former candidates separately; for example
copper tubes, stainless steel braid, copper braid, corrugated
stainless steel tubes, etc. The measured data are compared with
the predictions of a theoretical model. Our results show that in
most cases, the losses induced by eddy currents in the former are
negligible. However, for materials with a low resistivity the eddy
current losses may become significant, e.g. for high purity Cu or
Al.
| Original language | English |
|---|---|
| Journal | Physica C: Superconductivity and its Applications |
| Volume | 310 |
| Issue number | 1-4 |
| Pages (from-to) | 267-271 |
| ISSN | 0921-4534 |
| Publication status | Published - 1998 |
| Event | The International Cryogenic Materials Conference: Topical Conference on AC Loss and Stability of Low- and High Tc Superconductors - University of Twente, Enchede, Netherlands Duration: 1 Jan 1998 → 13 May 1998 |
Conference
| Conference | The International Cryogenic Materials Conference |
|---|---|
| Location | University of Twente |
| Country/Territory | Netherlands |
| City | Enchede |
| Period | 01/01/1998 → 13/05/1998 |
| Sponsor | University of Twente |