Karlsruher Institut Fur Technologie

Forschungszentrum Karlsruhe Gmbh

Mathias Noe

Bernhard Holzapfel

Grigory Kuperman

Christian Schacherer

Klaus-Peter Juengst

A rail-bound maglev train comprising a guide rail which predefines a travel path, having at least one supra-conductive element () and a levitating vehicle which is arranged on the guide rail and has magnetic means (), wherein the magnetic means interact magnetically in a contactless fashion with the travel path, and at least one supra-conductive element () comprises at least one supra-conductive conductor parallel to the travel path (), and the at least one supra-conductive conductor has at least two electrical connections, wherein the respective at least two connections bound, on a strip, a strip section, arranged between said connections, as a continuous supra-conductive electrical line.

Rail-bound maglev train

A device for limiting current with variable coil impedance includes a choke coil and a cooling device. An additional coil is made of a high-temperature superconducting material and is disposed in the choke coil such that the current is limited by the device without using an iron core.

Device for limiting current having variable coil impedance

In a current limiter for limiting currents in case of a fault including an additional device comprising an additional electric valve connected in series and being conductive in the same direction as the associated main valve, two series-connected valve branches arranged in opposition bypass two series connected current limiting inductors and both additional valves are bypassed by a similar passively complex connection for limiting current in the case of a fault, wherein the current limiter is not noticeable during normal operation, but, in the event of a fault, effectively limits the short circuit to a predetermined extent.

Growing community of inventors

Schauenburg, Germany

Mathias Noe