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Chūō-ku, Japan

Maruyama O.,Japan International Superconductivity Technology Center | Ohkuma T.,Japan International Superconductivity Technology Center | Masuda T.,Sumitomo Electric Industries | Ashibe Y.,Sumitomo Electric Industries | And 5 more authors.
IEEE Transactions on Applied Superconductivity | Year: 2013

A Japanese national project called 'Materials & Power Applications of Coated Conductors (M-PACC)' started in FY2008. In this project, we are developing a 66 kV/5 kA large-current high-temperature superconducting (HTS) cable and 275 kV/3 kA high-voltage HTS cable, using rare-earth barium copper oxide (REBCO) tapes. These HTS cables are expected to offer a compact cable with a large capacity and low power transmission loss. After the cable design has been studied and elemental technologies for each component of the cable system, such as ac loss reduction, protection against over-current, and high-voltage electrical insulation have been developed, two cable systems will be constructed and verified to meet the required specifications in FY2012. This paper describes the progress and status of these HTS cable developments in the M-PACC project. © 2002-2011 IEEE. Source


Patent
Tokyo University of Science, SWCC Showa Cable Systems Co., Nippon Thermostat Co. and Itoh Kikoh Co. | Date: 2012-03-30

Provided is a heat storage device which can stably store heat by storing heat within a fixed temperature range. A heat storage device (


Patent
Swcc Showa Cable Systems Co. and Kawasaki Jukogyo Kabushiki Kaisha | Date: 2011-01-14

A railcar includes: a power collector configured to collect electric power through overhead contact lines; a circuit breaking unit connected to the power collector and arranged on a roof of a car; and a plurality of electric power cables connected to the circuit breaking unit. The circuit breaking unit includes: a circuit breaker arranged above the roof and connected to a circuit connected to the power collector; and a branch joint which is integrally connected to a terminal portion of the circuit breaker and arranged under the circuit breaker and to which the plurality of electric power cables are connected.


Patent
Swcc Showa Cable Systems Co. | Date: 2010-02-05

A cable for a high-voltage electronic device having a small diameter and an excellent voltage resistance characteristic. The cable includes an inner semiconducting layer, a high-voltage insulator, an outer semiconducting layer, a shielding layer, and a sheath on an outer periphery of a cable core portion, wherein the high-voltage insulator is formed of an insulating composition containing 0.5 to 5 parts by mass of an inorganic filler with respect to 100 parts by mass of an olefin-based polymer, and the inorganic filler has an average dispersed-particle diameter of 1 m or less.


Patent
Japan International Superconductivity Technology Center and Swcc Showa Cable Systems Co. | Date: 2014-02-27

Provided is an oxide superconductor composition that makes it possible to increase film thickness, increase production speed, and decrease costs when producing a REBaCuO-type oxide superconductor wire (wherein RE is at least one element selected from the group consisting of Y, Nd, Sm, Gd, Dy, Eu, Er, Yb, Pr, and Ho). The oxide superconductor comprises, as essential components thereof, an RE salt of a carboxylic acid that serves as an RE component, that does not contain a ketone group, and that has 3-8 carbon atoms, barium trifluoroacetate that serves as a Ba component, one or more copper salts that serve as a Cu component and that are selected from the group consisting of copper salts of branched saturated aliphatic carboxylic acids having 6-16 carbon atoms and copper salts of alicyclic carboxylic acids having 6-16 carbon atoms, and an organic solvent that dissolves the aforementioned metal salt components.

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