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Review on AC losses in superconductors
IEEE Transactions on Magnetics, 1981Paper presents principal results obtained during the last years in the research of AC losses in superconductors with regard to the magnet technology. Special emphasis is given on these aspects which are important in demonstrating the technical feasibility and economical advantages of AC superconducting windings. In the domain of hysteresis losses paper
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AC Losses in Hard Superconductors
1963Fagan[1], McFee[2], and others have suggested the possibility of building transformers, transmission lines, rectifiers, rotating equipment, and other ac power equipment using superconductors. The practicability of many of these devices depends on the feasibility of producing superconductors that will carry high ac current densities at high ac magnetic ...
C. H. Jones, H. L. Schenk
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IEEE Transactions on Appiled Superconductivity, 2003
To achieve compact and highly efficient HTS power transmission cables, reducing and evaluating AC losses is important. Furukawa is developing conductors with low AC losses of 1 W/m at 3000 Arms for the 66/77 kV class HTS cables as a part of the Super-ACE project.
M. Yagi +7 more
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To achieve compact and highly efficient HTS power transmission cables, reducing and evaluating AC losses is important. Furukawa is developing conductors with low AC losses of 1 W/m at 3000 Arms for the 66/77 kV class HTS cables as a part of the Super-ACE project.
M. Yagi +7 more
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Magnetization And Ac Losses In Superconductors
1999Abstract Magnetization losses in superconducting filaments and other losses in superconductive wires, composites and cables in time-varying magnetic fields are of considerable importance to magnet design. Important theoretical and experimental investigations in this domain had been performed since the understanding of hard Type II ...
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Ac Losses in Bi2212 ROSATwires Exposed to an Ac Magnetic Field
2000We experimentally studied the ac loss properties of Bi2212 ROSATwires(Rotation-symmetric arranged tape-in-tube wire) with 19x6x3 thin filaments and pure silver matrix. Ac losses and I c -B characteristics of the twisted and non-twisted straight sample wires with a diameter of 1.95mm were measured in subcooled LN2 at 66K.
Masataka Iwakuma +5 more
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AC Loss in a Composite Hyperconductor
1990For high magnetic field operation at cryogenic temperatures near 20° K the best lightweight conductor presently available is high-purity aluminum, sometimes referred to as a hyperconductor. However, because of its high purity the material is mechanically weak, and because of its high conductivity the conductor must be fabricated as fine twisted strands
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AC product defect level and yield loss
IEEE Transactions on Semiconductor Manufacturing, 1990The author considers the AC defect level and yield loss after test for both logic and random-access-memory semiconductor chips. Computation of chip AC defect level and yield loss after test is dependent upon the availability of statistical information regarding the behavior of the chip's delay and of the tester error.
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AC Loss in High-Tc Superconductors
2000There are three kinds of AC losses in superconducting wires, transport current losses, magnetization losses and total losses. The first losses are caused by the AC transport currents flowing in the wires, the second caused by the AC external magnetic fields which the wires are subject to and the third caused by the combination of the transport currents
Osami Tsukamoto +2 more
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AC losses in superconducting niobium
1973This thesis is concerned with measurements of alternating field losses in cylindrical rods of niobium in its superconducting state. Six samples have been investigated each with a different surface condition, Magnetization measurements of the samples have been studied which show the effect of the surface condition on the first critical magnetic field H ...
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