Patent application number | Description | Published |
20080217995 | Power Cable Line - In a DC power transmission and distribution line, a power cable line for making it possible to easily supply power to various electric power machines used for operation of the line is provided. | 09-11-2008 |
20080257579 | Superconducting Cable and Dc Transmission System Incorporating the Superconducting Cable - The invention offers a superconducting cable easy to form a twisted structure even when a plurality of cable cores are used and a DC transmission system incorporating the superconducting cable. A superconducting cable | 10-23-2008 |
20080293575 | Superconducting Cable - A superconducting cable enables the cooling of the superconducting conductor with high efficiency and has a sufficient insulating strength. A method of controlling the temperature of the coolants used in the cable is offered. The superconducting cable comprises a heat-insulated pipe that houses a cable core provided with a superconducting conductor made of a superconducting material. The cable core is also provided with a poorly heat-conductive pipe placed at the outer side of the outer circumference of the superconducting conductor. The inside and outside of the poorly heat-conductive pipe are separately filled with different types of coolants having different purposes. The poorly heat-conductive pipe is filled with a conductor-use coolant for cooling the superconducting conductor so as to maintain it at the superconducting state. The heat-insulated pipe is filled with an insulation-use coolant for performing electric insulation of the superconducting conductor. | 11-27-2008 |
20090025979 | Coupling structure of superconducting cable - A coupling structure of a superconducting cable is formed at an end portion of the superconducting cable having a superconducting layer and an outer peripheral layer formed thereon. The superconducting layer is coupled to a coupling member. A holding member | 01-29-2009 |
20090124505 | SUPERCONDUCTING CABLE - There is provided a superconducting cable allowing a simple configuration to absorb an amount of contraction of normal conducting wire caused as it is cooled. The present superconducting cable has a superconducting layer (a superconducting conductor layer, a superconducting shield layer and a normal conducting layer (a normal conducting conductor layer, a normal conducting shield layer) disposed at at least one of inner and outer sides of the superconducting layer. The superconducting cable has a stress relaxation layer at an inner side of the normal conducting layer, and the superconducting cable has the stress relaxation layer absorb an amount of radial contraction of the normal conducting layer caused as it is cooled by a coolant. | 05-14-2009 |
20090170706 | Superconducting cable line - A superconducting cable line includes a heat insulation pipe for a fluid for transporting a fluid having a temperature lower than an ordinary temperature and a superconducting cable housed in the heat insulation pipe for a fluid. The superconducting cable including a cable core in a heat insulation pipe for a cable is housed in the heat insulation pipe for a fluid to make a temperature difference between the inside and outside of the heat insulation pipe smaller than that in a situation of laying in an atmosphere. In addition, the superconducting cable has a double heat insulation structure formed with the heat insulation pipe for a cable and the heat insulation pipe for a fluids. Therefore, the superconducting cable line can effectively reduce heat intrusion from the outside into the cable. | 07-02-2009 |
20090197769 | Electric power feed structure for superconducting apparatus - An electric power feed structure for a superconducting apparatus, which is used to input or output electric power between the cryogenic-temperature side and the room-temperature side, comprises a coolant vessel containing a superconducting section provided in the superconducting apparatus, a vacuum thermal insulation vessel arranged to surround the outer periphery of the coolant vessel, and a feed conductor part having one end arranged in the room temperature side and having the other end connected to the superconducting section. The feed conductor part is divided into a cryogenic-temperature side conductor connected to the superconducting section and a room-temperature side conductor arranged in the room temperature side such that the cryogenic-temperature side conductor and the room-temperature side conductor can be detachably attached to each other. Thus, provided are the electric power feed structure for a superconducting apparatus and a superconducting cable line equipped with the electric power feed structure in which the electric power fed between the cryogenic-temperature side and the room-temperature side can be easily varied by changing an effective conductor cross-sectional area. | 08-06-2009 |
20090229848 | Superconducting cable - Provided is a superconducting cable capable of maintaining a predetermined thermal insulation property without having a vacuum thermal insulation structure. The superconducting cable of the present invention comprises: a cable unit | 09-17-2009 |
20100206616 | METHOD OF PRODUCING SUBMARINE SOLID CABLE AND SUBMARINE SOLID CABLE - The invention offers a submarine solid cable that can suppress the movement of the insulating oil when the cable is used and the production method thereof. The method of producing a submarine solid cable forms an insulating layer by lapping insulating tapes, each of which includes a resin film, over the outer circumference of a conductor and impregnates the insulating layer with medium-viscosity insulating oil. The insulating layer is formed by lapping insulating tapes, each of which includes a resin film, over the outer circumference of the conductor | 08-19-2010 |
20110203827 | SUPERCONDUCTING CABLE - Provided is a superconducting cable capable of maintaining a predetermined thermal insulation property without having a vacuum thermal insulation structure. The superconducting cable of the present invention includes: a cable unit | 08-25-2011 |