Superconductors through the inner city of Essen
The world's longest superconducting cable renders substation obsolete
The new cable, one kilometre long, connects two substations across the city centre. It replaces a conventional 110 kV line and renders one substation in the inner city obsolete.
In a test phase of the “AmpaCity” project, taking over two and a half years, it was shown that the technology is on the threshold of market maturity.
The superconducting cable and the superconducting fault current limiter installed as a short-circuit protection measure work reliably. The test route has already transmitted more than 200 million kilowatt-hours.
Since superconductivity only works at very low temperatures, the cables in the Essen facility are being constantly cooled with liquid nitrogen. At the cable inlet, it has a temperature of minus 206 °C, at the cable outlet of minus 201 °C.
A subcooler cools it back to the required inlet temperature via a heat exchanger. Despite the high effort involved in cooling, preliminary investigations have shown that superconducting cables are the only sensible way of avoiding high-voltage cables as well as resource and space-consuming substations in inner city areas.
The AmpaCity project is conducted under the direction of the energy suppliers innogy SE and carried out jointly with their project partners.
You found all informations about the BINE Projektinfo brochure entitled “Superconductors for the medium-voltage network” here:
Uwe Milles/Birgit Schneider
About BINE Information Service
Energy research for practical applications
The BINE Information Service reports on energy research topics, such as new materials, systems and components, as well as innovative concepts and methods. The knowledge gained is incorporated into the implementation of new technologies in practice, because first-rate information provides a basis for pioneering decisions, whether in the planning of energy-optimised buildings, increasing the efficiency of industrial processes, or integrating renewable energy sources into existing systems.
About FIZ Karlsruhe
FIZ Karlsruhe – Leibniz Institute for Information Infrastructure is a not-for-profit organization with the public mission to make sci-tech information from all over the world publicly available and to provide related services in order to support the national and international transfer of knowledge and the promotion of innovation.
Our business areas:
• STN International – the world’s leading online service for research and patent information in science and technology
• KnowEsis – innovative eScience solutions to support the process of research in all its stages, and throughout all scientific disciplines
• Databases and Information Services – Databases and science portals in mathematics, computer science, crystallography, chemistry, and energy technology
FIZ Karlsruhe is a member of the Leibniz Association (WGL) which consists of 87 German research and infrastructure institutions.
http://www.bine.info/en – BINE Informationsdienst
All latest news from the category: Power and Electrical Engineering
This topic covers issues related to energy generation, conversion, transportation and consumption and how the industry is addressing the challenge of energy efficiency in general.
innovations-report provides in-depth and informative reports and articles on subjects ranging from wind energy, fuel cell technology, solar energy, geothermal energy, petroleum, gas, nuclear engineering, alternative energy and energy efficiency to fusion, hydrogen and superconductor technologies.
Researchers show an old law still holds for quirky quantum materials
This surprising result is important for understanding unconventional superconductors and other materials where electrons band together to act collectively. Long before researchers discovered the electron and its role in generating…
Straining memory leads to new computing possibilities
Researchers develop hybrid phase-change memristors that offer fast, low-power, and high-density computing memory.# By strategically straining materials that are as thin as a single layer of atoms, University of Rochester scientists have…
A patch of protection against Zika virus
A simple-to-apply, needle-free vaccine patch is being developed to protect people from the potentially deadly mosquito-borne Zika virus. A prototype using The University of Queensland-developed and Vaxxas-commercialised high-density microarray patch…