wiredinUSA May 2013

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Expocenter fairground - Moscow

Superconductor in Essen

“The superconductor cable being laid in Essen city centre runs between two transformer stations and is the first to have a length of one kilometer. It will facilitate a discernible increase in the power density and efficiency of the city centre power supply,” said Dr Andreas Breuer, head of the new technologies and projects division at RWE Deutschland AG. Christof Barklage, CEO of Nexans Deutschland, added: “This project could revolutionize the power networks. We are happy to be among the pioneers in this fascinating, trend-setting technology.”

What is believed to be the longest superconductor installation in the world has been announced by Nexans. Testing has been completed on a 10kV HTS system, part of the AmpaCity project. The 1km long, three-phase, concentric cable is designed to transport 40MW and was produced at the company’s superconductors plant at Huerth. It will replace a 110kV copper cable in the RWE-operated distribution network in the city of Essen at the end of the year. The combination of a superconductor cable with a resistive superconducting fault current limiter is also a first for the industry. The device protects the grid and the cable from overloading caused by short circuit currents, and prevents them from spreading to other network parts.

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wiredInUSA - May 2013

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