Hannover Messe 2019 Loss-free electricity transmission

Editor: Theresa Knell

The Karlsruhe Institute for Technology (KIT) presents a newly developed superconductor. It already permits loss-free energy transmission at temperatures around - 200 °C.

The HTS cross-conductor enables especially efficient energy transmission and already works at -196 °C.
The HTS cross-conductor enables especially efficient energy transmission and already works at -196 °C.
(Source: Karlruher Institut für Technologie)

The scientific team from the Karlsruhe Institute for Technology presents at the Hannover Messe a new superconductor cable suitable made in a simple industrial process. Superconductors are materials capable of transmitting electricity almost lost-free below a certain temperature. They are therefore especially suitable for connecting wind parks to the grid, for direct-current supplies on ships, or even for high-voltage cables in tomorrow’s entirely electric aircraft.

The HTS cross-conductor cable is based on the material Rebco, a high-temperature superconductor discovered in 1987 and already usable at temperatures of -196 °C and below. Normally, conductors of this kind only function at close to -269 °C. In longer sections, however, it is only available in the form of thin tapes. The physicists at the KIT have now developed a method which enables high-current cables to be made from these tapes.

This HTS cross-conductor consists of Rebco tapes of two different widths combined to give a cross-shaped cross-section. This enables the cables to transmit very large direct currents, saving space and weight compared to conventional copper or aluminium cables.

Visit Karlsruhe Institut für Technologie at Hannover Messe in Hall 27, Booth L51.

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