superconducting cable การใช้

• In the Detroit project, for example, three superconducting cables replace nine copper ones.
• In this case, 90 meters of superconducting cable have been installed at an electricity substation owned by Copenhagen Energy.
• Instead of digging up streets to install new, high-capacity conduits, existing conduits can be " retrofitted " with superconducting cables.
• Superconducting cable used to cost around $ 1, 500 per kiloamp per meter, the standard industry measure of conducting capacity.
• If successful, these and other small-scale demonstrations could lead to the widespread commercial take-up of superconducting cables within the next few years.
• This takes the form of a cylindrical coil of superconducting cable that generates a magnetic field of 4 teslas, about 100 000 times that of the Earth.
• Superconducting cables are particularly suited to high load density areas such as the business district of large cities, where purchase of an easement for cables would be very costly.
• This has been one of the incentives that have led the Ignitor Project to adopt magnesium diboride ( MgB 2 ) superconducting cables in the machine design, a first in fusion research.
• The real advantage is that the lack of resistance means that a given thickness of superconducting cable can carry between two and 10 times as much power as the same thickness of copper.
• With high-temperature superconductors, the cooling costs are greatly reduced, but because of the AC losses, the superconducting cables in the Detroit Edison project will not save any energy compared with the old copper cables.
• Lengths of the same superconducting cable up to 50 yards long have already been successfully tested, said Dr . Paul Grant, an expert in superconductivity at the Electric Power Research Institute in Palo Alto, Calif.
• The vehicles would enter the atmosphere at an altitude of 20 km from an evacuated tunnel restrained by Kevlar tethers and supported by magnetic repulsion between superconducting cables in the tunnel and on the ground.
• Superconducting cables cost several times as much as copper ones, but because they carry much more current, they could still find use in urban areas where digging up streets to put in new conduits would be costly.
• By grinding the material up, packing it into silver tubes, rolling the tubes into tapes, heating the tapes up and then rolling and heating again and again, its engineers have produced wires long enough to be useful as superconducting cables.
• With P . Chaudhari and D . Dimos, J . Mannhart revealed that grain alignment is key to the fabrication of high-temperature superconductors with useful critical currents, so that they are suitable for practical applications such as modern high-" T " c superconducting cables.
• In the late 1970s, a superconducting cable was tested in a power grid in Austria, and in the 1980s, Brookhaven National Laboratory in New York built two 430-foot superconducting transmission cables made of niobium-tin, a low-temperature superconductor, that could carry enough electricity to power a large city.
• New grids, perhaps using cooled superconducting cables, might be needed to harvest power from wind and solar systems . _ Solar power satellites : Orbiting solar arrays could make electricity, convert it to microwaves and then beam that energy to a ground antenna where it would be converted back to electricity.