Abstract
Superconducting power links (SUPERPOLI) will offer a low-loss power transmission and fault current limitation in a single device. In the European SUPERPOLI project, a long term goal is to build a 200 m long, 20 kVrms, 28 kArms, 3-phase superconducting power link which will be refrigerated by sub-cooled liquid nitrogen. The SUPERPOLI will have a compact co-axial multitube structure which significantly reduces the ac losses. As a step towards this GVA-class application, a 2 m long, 20 kV, 2 kA/5 kA, one-phase functional model is under construction. The conductor variants considered are Bi-2212 bulk conductor and Y-123 coated film conductor. They present very different behaviors in normal operation and during the limiting phase: Bi-2212 bulk conductor has higher ac losses and allows short transients or moderate over-currents without quenching, while Y-123 film has low ac losses and immediate response for overcritical currents.
| Original language | English |
|---|---|
| Pages (from-to) | 1928-1931 |
| Number of pages | 4 |
| Journal | IEEE Transactions on Applied Superconductivity |
| Volume | 11 |
| Issue number | 1 II |
| DOIs | |
| Publication status | Published - 1 Mar 2001 |
| MoE publication type | A4 Article in a conference publication |
| Event | 2000 Applied Superconductivity Conference - Virginia Beach, VA, United States Duration: 17 Sept 2000 → 22 Sept 2000 |
Funding
Manuscript received September 18, 2000. This work is supported in part by EU Brite/EuRam Contract BRPR-CT98-0647. J. Paasi and J. Lehtonen are with Laboratory of Electromagnetics, Tampere University of Technology, 33 101 Tampere, Finland. T. Verhaege and P. F. Henmann are with Alcatel CIT, 91460 Marcoussis, France
Keywords
- Current limiters
- High-T superconductors
- Power distribution
