Measurement of current distribution in superconducting non-insulated stranded cable
- Yokohama National Univ. (Japan)
A method to measure the current distribution in superconducting stranded-cables without electrical insulation has been developed. Stability property of multi-strand superconducting cables is significantly influenced by the current distribution among their strands. Static current imbalance among the strands is one of the reasons for the quench current degradation in multi-strand superconducting cables. In addition to this static current distribution, the authors point out the transient current re-distribution during quench or recovery process can influence the stability of multi-strand superconducting cables. The measurement of current distribution in multi-strand superconducting cables is necessary to study their stability property experimentally. In their method, sets of Hall sensors arranged around the cable are used to measure the magnetic field distribution. The current in each strand is calculated with the measured magnetic field. It is possible to measure the static current distribution as well as transient one. With this method, the current distribution can be measured locally in superconducting cables made of strands without insulation where the current distribution is supposed to change along the cable axis.
- OSTI ID:
- 482134
- Report Number(s):
- CONF-950722-; ISSN 0065-2482; TRN: 97:010614
- Journal Information:
- Advances in Cryogenic Engineering, Vol. 42B; Conference: CEC/ICMC `95: cryogenic engineering conference and international cryogenic materials conference, Columbus, OH (United States), 17-21 Jul 1995; Other Information: PBD: 1997
- Country of Publication:
- United States
- Language:
- English
Similar Records
Influence of current re-distribution and thermal diffusion among strands on stability of superconducting cables against local disturbances
Stability of non-insulated A.C. multi-strand superconducting cables