HANNOVER MESSE 2020, 20 - 24 April
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Good supra-conducting links

A connector allows efficiently joining of power cables.

Logo Karlsruher Institut für Technologie


Karlsruher Institut für Technologie

Exhibitor details
Exhibitor details
Logo Good supra-conducting links

Product description

Electricity has to be transported to the consumer with minimum losses. Here, in addition to high-voltage direct current transmission, cables consisting of supra-conducting material offer a promising alternative. Supra-conductors enable direct current transmission without losses. Metal bands coated with a supra-conducting material and covered with a protective layer of copper are often used to make supra-conducting cables. A cable then consists of stacked bands that are soldered to one another and encased in a copper cover. However, the supra-conducting bands are usually not longer than 100 metres. In order to use them for kilometre-long power cables, several cable sections have to be connected to one another. The method commonly used nowadays to connect the cable sections consists of baring the supra-conducting cables at their ends and then soldering them to one another individually. However, this process is very time and cost intensive and is unsuitable for applications on an industrial scale. KIT scientists at the Institute for Technical Physics (ITEP) have developed a connector that consists of a copper body with recesses for the cables. Bands of supra-conducting material run along these recesses. The cables that are to be connected are closely aligned with the supra-conductor bands, enabling power transmission from one section to the next virtually without any losses. In order to fixate the connection, a liquid metal alloy is used as solder, and the connector is closed with a lid. The compact copper body can designed in a manner enabling it to link cables either in a straight line or at an angle.

You can get an overview of this technology at KIT stand. Detailed information can be exchanged individually in contact with the responsible scientific employees of KIT after the industry fair.

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