WO2005086306A1 - 多相超電導ケーブルの端末構造 - Google Patents
多相超電導ケーブルの端末構造 Download PDFInfo
- Publication number
- WO2005086306A1 WO2005086306A1 PCT/JP2005/002424 JP2005002424W WO2005086306A1 WO 2005086306 A1 WO2005086306 A1 WO 2005086306A1 JP 2005002424 W JP2005002424 W JP 2005002424W WO 2005086306 A1 WO2005086306 A1 WO 2005086306A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- superconducting
- cable
- layer
- conductor layer
- insulating
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G15/00—Cable fittings
- H02G15/34—Cable fittings for cryogenic cables
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G15/00—Cable fittings
- H02G15/20—Cable fittings for cables filled with or surrounded by gas or oil
- H02G15/22—Cable terminations
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
- H01R4/58—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation characterised by the form or material of the contacting members
- H01R4/68—Connections to or between superconductive connectors
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G1/00—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines
- H02G1/06—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines for laying cables, e.g. laying apparatus on vehicle
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E40/00—Technologies for an efficient electrical power generation, transmission or distribution
- Y02E40/60—Superconducting electric elements or equipment; Power systems integrating superconducting elements or equipment
Definitions
- the present invention relates to a terminal structure of a multiphase superconducting cable provided between an end of a multiphase superconducting cable and a room temperature side.
- the present invention relates to a terminal structure of a multiphase superconducting cable having a plurality of concentric superconducting layers through which currents having different phases flow.
- FIG. 5 is a cross-sectional view of a three-core superconducting three-phase superconducting cable.
- the same reference numerals in the drawings denote the same components.
- the superconducting cable 100 has a configuration in which three cable cores 102 are twisted and housed in a heat insulating tube 101.
- the heat insulating pipe 101 has a configuration in which a heat insulating material (not shown) is disposed between a double pipe composed of an outer pipe 101a and an inner pipe 101b, and the inside of the double pipe is evacuated.
- An anticorrosion layer 104 is provided on the outer periphery of the heat insulating pipe 101.
- Each cable core 102 also has a central force in the order of a foam 200, a superconducting conductor layer 201, an electrical insulation layer 202, a cable shield layer 203, and a protective layer 204, and a space 103 surrounded by the inner tube 101b and each cable core 102 is liquid. Provides a flow path for refrigerant such as nitrogen.
- FIG. 6 is a schematic configuration diagram showing a connection structure with a room temperature side in a three-core batch type three-phase superconducting cable
- FIG. 7 is a schematic configuration diagram showing a terminal structure of the cable.
- the connection structure to the room temperature side is formed for each phase.
- a branch box 210 for branching the end of the superconducting cable 100 for each phase (cable core 102)
- a heat insulating pipe 220 for accommodating each core 102 drawn from the branch box 210
- a termination junction box 230 for introducing the end of each core 102 respectively.
- Each of the cores 102 introduced into each terminal connection box 230 is connected to a conductor portion 110a (see FIG. 7) drawn out to the room temperature side, and the conductor portion 110a is connected to the room temperature side connection box 250 via a connection cable 240. Connected to the cryogenic side Enables power transmission between the normal temperature side.
- the terminal structure includes an end portion of the cable core 102, a conductor portion 110a that establishes electrical continuity between the cryogenic core 102 and the room temperature side, and one end of the conductor portion 110a.
- a refrigerant tank 111 that houses the side (connection side with the core 102), a terminal connection box 230 composed of a vacuum vessel 112 that covers the outer periphery of the refrigerant tank 111, and an insulator tube 113 that is disposed on the normal temperature side of the vacuum vessel 112. I can.
- a conductive lead rod 114 is connected to the end of the cable core 102, and the superconducting conductor layer and the conductor 110a are connected through the lead rod 114 and the joint 115.
- the conductor portion 110a is usually formed of copper, aluminum, or the like, is built in an insulating pushing 110b made of FRP or the like, and is disposed from the refrigerant tank 111 to the insulator tube 113 via the vacuum vessel 112.
- the coolant tank 111 is filled with a coolant 111a such as liquid nitrogen for cooling one end of the lead rod 114 (the side connected to the joint 115) and one end (same) of the conductor 110.
- the insulator tube 113 accommodates the other end side (normal temperature side) of the conductor portion 110a, and is provided with an insulating material such as SF or insulating oil.
- the rim fluid 113a is filled.
- a lead rod refrigerant tank 116 is disposed on the outer periphery of the lead rod 114, and a lead rod vacuum vessel 117 is disposed on the outer periphery thereof (see Patent Document 1).
- Patent Document 1 JP-A-2002-238144
- connection structure at the end portion of the multi-core collective type multi-phase cable branches off for each phase via a branch box, and a terminal structure is formed for each phase. Miniaturization is required.
- a main object of the present invention is to provide a terminal structure of a polyphase superconducting cable that can further reduce the size of a connection structure at a terminal portion.
- the present invention achieves the above object by using a so-called coaxial type multi-phase cable instead of a multi-core batch type multi-phase cable.
- the terminal structure of the multiphase superconducting cable of the present invention is a multiphase superconducting cable having a plurality of concentrically formed superconducting conductor layers through which currents having different phases flow through a conductor insulating layer; A coolant tank filled with a coolant that cools the ends of the formation. These super A lead portion is electrically connected to each end of the conductive layer. Then, an insulating member is disposed on the outer periphery of these lead portions, and the refrigerant in the refrigerant tank is sealed by the insulating member.
- the terminal structure of the multiphase superconducting cable of the present invention does not require a branch box that branches for each phase, unlike a multicore batch type multiphase cable, and requires a termination connection box for each phase. Since one terminal connection box can be used for all phases without providing, it is possible to achieve an excellent effect that the connection structure at the terminal part can be reduced in size. Also, the outer superconducting conductor layer, which apparently serves as a shield for the inner superconducting conductor layer, can be electrically insulated from the ground. Further, by constructing a heat insulating structure, it is possible to sufficiently reduce the heat penetration at room temperature.
- FIG. 1 is a schematic configuration diagram showing a cross section of a multi-phase superconducting cable including a plurality of superconducting conductor layers in a concentric manner.
- FIG. 2 is a schematic configuration diagram of a terminal structure of the multiphase superconducting cable of the present invention.
- FIG. 3 (A) is a schematic configuration diagram showing a portion where a superconducting conductor layer and a lead portion are attached.
- FIG. 3 (B) is a schematic configuration diagram of a lead portion.
- FIG. 4 is a schematic top view showing an arrangement state of a lead portion in an insulating member.
- FIG. 5 is a schematic configuration diagram showing a cross section of a three-core superconducting three-phase superconducting cable.
- FIG. 6 is a schematic configuration diagram showing a connection structure with a normal temperature side in a three-core superconducting three-phase superconducting cable.
- FIG. 7 is a schematic configuration diagram showing a terminal structure of a three-core superconducting three-phase superconducting cable.
- Three-core batch type multiphase superconducting cable 101 Insulated tube 101a Outer tube 101b Inner tube 102 Cable core 103 Space 104 Corrosion protection layer
- Branch box 220 Insulated pipe 230
- Termination box 240 Connection cable
- the multiphase superconducting cable has a plurality of superconducting conductor layers concentrically, and a conductor insulating layer is provided between the superconducting conductor layers.
- a first conductor layer composed of a superconducting material
- a first conductor insulation layer composed of an insulating material
- a second conductor layer a second conductor insulation layer
- a third conductor layer a third conductor layer
- the third conductor insulating layer • ⁇ -and the superconducting conductor layer and the conductor insulating layer are arranged alternately! / ⁇ .
- the superconducting conductor layer may be, for example, a single layer or a multilayer formed by spirally winding a wire made of # 2223-based superconducting material.
- an interlayer insulating layer may be provided.
- the interlayer insulating layer may be formed by winding insulating paper such as kraft paper or semi-synthetic insulating paper such as PPLP (registered trademark, manufactured by Sumitomo Electric Industries, Ltd.).
- the first conductor layer may be formed by winding around the outer periphery of the former. After the second conductor layer, conductor disconnection Forming by winding around the outer periphery of the edge layer.
- the conductor insulating layer is provided with insulation strength required for interphase insulation, which is formed by winding semi-synthetic insulating paper such as PPLP (registered trademark) or insulating paper such as kraft paper.
- a cable shield layer configured similarly to the superconducting conductor layer formed on the outside may be provided on the outer periphery of the outermost conductor insulating layer.
- a protective layer may be provided on the outer periphery of the cable shield layer.
- a former, the superconducting conductor layer, the conductor insulating layer, and other appropriate cable shield layers and protective layers are sequentially formed to form a cable core, and this core is housed in a heat insulating pipe to form a coaxial polyphase superconducting cable.
- a heat insulating pipe for example, there is a configuration in which a heat insulating material is disposed between heat insulating pipes having a double structure including an outer pipe and an inner pipe, and a vacuum is drawn between the inner pipe and the outer pipe.
- the inner tube is filled with a refrigerant such as liquid nitrogen for cooling the cable core.
- An anticorrosion layer or the like may be provided on the outer periphery of the heat-insulating pipe with a resin such as polyvinyl chloride.
- the multi-phase superconducting cable in which the superconducting conductor layers are arranged concentrically in this way can reduce the cable cross-sectional area and reduce the size of the cable itself as compared with the conventional multi-core multi-phase superconducting cable. can do.
- a coaxial multiphase superconducting cable is preferable because it has less power transmission loss than a multicore batch type cable.
- the terminal structure of the present invention includes a refrigerant tank for cooling the superconducting conductor layer at the end of the cable so that the cryogenic state can be maintained.
- the refrigerant tank is preferably filled with a refrigerant such as liquid nitrogen. It is preferable that a heat insulation tank having a heat insulating structure is provided on the outer periphery of the refrigerant tank.
- the refrigerant tank and the heat insulating tank are preferably formed of a metal such as stainless steel having excellent strength.
- a lead portion is electrically connected to an end of each superconducting conductor layer so that electricity can be extracted for each phase on the normal temperature side. That is, power can be transmitted between the cryogenic temperature side and the normal temperature side via the lead portion.
- the superconducting conductor layer is pulled out to the outside without a lead portion, if the superconducting conductor layer is formed by winding a wire made of a superconducting material, the refrigerant impregnated in the superconducting layer travels through the superconducting conductor layer. Leaks outside.
- the terminal structure of the present invention can prevent the leakage of the refrigerant.
- the lead may be formed of a conductive material.
- the leads are connected to the superconducting conductor layer.
- the lead portions are conductive members, it is necessary to insulate between these lead portions. Therefore, an insulating member is arranged on the outer periphery of these lead portions for interphase insulation. These lead portions are arranged on an insulating member so as to maintain a necessary distance for phase insulation.
- a current flows through each superconducting conductor layer with a phase shift of 120 °, so that each of the lead portions has a potential with a phase shift of 120 °. Therefore, the second conductor layer having a potential whose phase is shifted by 120 ° from the innermost first conductor layer apparently functions as a shield layer.
- the third conductor layer having a potential that is 120 ° out of phase with respect to the second conductor layer apparently functions as a shield layer.
- the shield layer is grounded.
- the second conductor layer and the third conductor layer need to be electrically insulated from the ground because a large current is applied thereto and the potential of the second conductor layer and the third conductor layer is high with respect to the ground.
- the insulating member by arranging the insulating member on the outer periphery of the lead portion as described above, the second conductor layer and the third conductor layer connected to the lead portion can be electrically insulated from the ground.
- Such an insulating member only needs to have a configuration capable of interphase insulation and insulation with respect to the ground.
- the insulating member may be formed of an insulating material such as epoxy resin or FRP (fiber reinforced plastic). The insulating member may be formed separately and attached to the lead portion, or may be formed integrally with the lead portion.
- the refrigerant tank is also sealed with the insulating member.
- the sealing of the coolant tank is, for example, formed by forming the coolant tank into a cylindrical shape, forming an insulating member by fitting to one opening, and closing the opening with the insulating member.
- each lead portion which is derived and arranged on the outside, is connected to an insulating tube filled with an insulating fluid such as SF or insulating oil or an epoxy resin or the like.
- the lead portion may be directly attached to the superconducting conductor layer using, for example, solder.
- solder melting point: about 190 ° C.
- the insulating performance of the conductor insulating layer may be deteriorated by heat of fusion. Therefore, low melting point solder may be used.
- solder having a melting point lower than the heat-resistant temperature of the conductor insulating layer.
- the lead portion may be attached to at least a part of the superconducting conductor layer.However, a sleeve portion having a conductive material is arranged so as to cover the outer periphery of the superconducting conductor layer, and the lead portion is connected to the sleeve portion. You may let it. In particular, since the outer diameter of the superconducting conductor layer arranged on the outside is large, it is preferable to use a sleeve portion.
- the sleeve portion is electrically connected to the superconducting conductor layer. For example, the connection may be made with the low melting point solder or the like.
- the sleeve portion may be formed of a normal conducting material such as copper or aluminum having a small resistance even at an extremely low temperature, such as copper or aluminum.
- the shape of the sleeve portion is preferably a shape that can be electrically connected to as many superconducting wires as possible, particularly when the superconducting conductor layer is formed of a plurality of superconducting wires.
- a cylindrical shape for example, a cylindrical shape, which can cover the outer periphery of the superconducting conductor layer over the entire periphery is mentioned.
- the divided pieces are combined to form a cylindrical shape, because the split pieces are easily attached to the outer periphery of the superconducting conductor layer.
- a configuration in which divided pieces having an arc-shaped cross section are combined to form a cylindrical shape specifically, a configuration in which a split piece having a half-arc shaped cross section is combined is used.
- a plurality of holes penetrate from the outer peripheral surface to the inner peripheral surface are formed in the sleeve portion, and the solder or the like is caused to flow through the holes to connect to the superconducting conductor layer.
- the outer periphery of the refrigerant tank and the outer periphery of the insulating member be constructed with a heat insulating structure that suppresses heat from entering the refrigerant tank from the room temperature side.
- a heat insulating material may be arranged on the outer periphery of the refrigerant tank and the insulating member, and a heat insulation tank may be arranged to cover the outer periphery.
- the inside of the heat insulation tank may be evacuated to increase heat insulation
- FIG. 1 is a schematic configuration diagram showing a cross section of a polyphase superconducting cable having a plurality of superconducting conductor layers concentrically
- FIG. 2 is a schematic configuration diagram of a terminal structure of the polyphase superconducting cable of the present invention.
- the terminal structure of the multi-phase superconducting cable of the present invention is suitable for being provided between the end of the multi-phase superconducting cable 1 and the room temperature side.In particular, currents having different phases are provided via the conductor insulating layer 5.
- This is a coaxial multiphase cable having a plurality of superconducting conductor layers 4 to be flowed concentrically.
- the terminal structure shown in this example has a refrigerant tank 10 filled with a refrigerant 10a that cools the ends of the three superconducting conductor layers 4, and each of the ends electrically connected to each of the ends of the superconducting conductor layers 4. It has a lead portion 20 and an insulating member 30 that is arranged on the outer periphery of the lead portion 20 and seals the refrigerant 10a of the refrigerant tank 10.
- a heat insulation tank 40 is provided on the outer periphery of the refrigerant tank 10 and the outer periphery of the insulating member 30.
- An insulator tube 50 is provided on the normal temperature side of each lead portion 20.
- the multi-phase superconducting cable 1 used in this example is a three-phase superconducting cable having a three-layer coaxial superconducting conductor layer 4 through which different three-phase currents flow, as shown in FIG.
- the cable core 2 is housed.
- the heat insulating pipe 101 has a structure in which a heat insulating material (not shown) is arranged between the outer pipe 101a and the inner pipe 101b and a double pipe that also acts as a force, and the inside of the double pipe is evacuated.
- the cable core 2 also has a center force of the former 3, the first conductor layer 4a, the first conductor insulation layer 5a, the second conductor layer 4b, the second conductor insulation layer 5b, the third conductor layer 4c, the third conductor insulation layer 5c,
- a space 103 provided with the cable shield layer 6 and the protective layer 7 and surrounded by the inner pipe 101b and the cable core 2 serves as a flow path for a refrigerant such as liquid nitrogen.
- Each of the conductor layers 4a-4c and the cable shield layer 6 were formed of a Bi2223-based superconducting tape wire (Ag-Mn sheath wire).
- the first conductor layer 4a, the second conductor layer 4b, the third conductor layer 4c, and the cable shield layer 6 are the former 3, the first conductor insulation layer 5a, the second conductor insulation layer 5b, and the third conductor insulation layer, respectively.
- 5c was spirally wound in multiple layers around the periphery.
- the first conductor insulation layer 5a, the second conductor insulation layer 5b, and the third conductor insulation layer 5c are respectively provided on the outer periphery of the first conductor layer 4a, the second conductor layer 4b, and the third conductor layer 4c with semi-synthetic insulation paper (Sumitomo Electric (Industry Co., Ltd .: PPLP: registered trademark).
- Former 3 was formed by twisting multiple insulated copper wires.
- the protective layer 7 was formed by winding kraft paper around the outer periphery of the cable shield layer 6.
- the heat insulating pipe 101 has a vacuum multi-layer heat insulating structure in which a SUS corrugated pipe is used, a plurality of heat insulating materials are arranged between the outer pipe 101b and the inner pipe 101a, and a vacuum is drawn.
- Polyvinyl chloride The anticorrosion layer 104 was formed by using
- Such a multi-phase superconducting cable 1 has an advantage that the cross-sectional area is small and the power transmission loss is small as compared with the conventional three-core collective type multi-phase superconducting cable 100 shown in FIG.
- the connection structure at the terminal end for connection with the room temperature side can be reduced.
- the end of the polyphase superconducting cable 1 connected to the room temperature side is housed in a refrigerant tank 10 filled with a refrigerant 10a.
- a cable core 2 is drawn from the multi-phase superconducting cable 1 and the core 2 is introduced into the refrigerant tank 10.
- the refrigerant tank 10 was formed of stainless steel. Liquid nitrogen was used as the refrigerant 10a.
- FIG. 3 (A) is a schematic configuration diagram showing a portion where a superconducting conductor layer and a lead portion are attached
- FIG. 3 (B) is a schematic configuration diagram of a lead portion.
- the lead portion 20 shown in this example is a rod-like body formed of copper.
- each of the lead portions 20 is introduced into the refrigerant tank 10 so as to be connected to each superconducting conductor layer, and the other end is projected from the refrigerant tank 10 and the heat insulating tank 40 so as to be connected to a device at a normal temperature.
- An insulator tube 50 is arranged on the outer periphery of the protruding portion.
- lead portions 20 may be directly attached to each superconducting conductor layer, in this example, a sleeve portion 21 made of a conductive material is arranged around the outer periphery of each superconducting conductor layer, and The lead section 20 is attached.
- the sleeve portions 21a to 21c arranged on the outer periphery of each superconducting conductor layer were formed of copper similarly to the lead portion 20.
- the shape was cylindrical with an inner diameter R adapted to the outer circumference of each superconducting conductor layer. In this example, a half is attached so that it can be easily attached to the superconducting conductor layer. A cylindrical shape obtained by combining arc-shaped divided pieces was used.
- a plurality of holes 22a penetrating from the outer peripheral surface toward the inner peripheral surface are provided on the outer periphery of the sleeve portion 21. By flowing solder into the holes 22a, the sleeve portion 21 and the superconducting conductor layer are electrically connected to each other.
- the sleeve 21 is fixed to the superconducting conductor layer.
- low melting point solder In concrete terms, the melting point of the solder to about 79 ° C (chemical composition; Sn: 17 wt%, Bi: 57 wt%, an In: 26 Weight 0/0) use the Was.
- the sleeve portion 21 is provided with a mounting portion 22b for connecting to the lead portion 20.
- the lead portion 20 and the sleeve portion 21 are not directly connected, but are connected via the connecting member 23 and the mounting member 24.
- the connecting member 23 and the mounting member 24 are both made of copper, the connecting member 23 is made of a braided material, and the mounting member 24 is a block having holes at both ends.
- the sleeve portion 21 is provided with a mounting portion 22b for mounting the connecting member 23. Then, the attachment of the lead portion 20 and the sleeve portion 21 is performed as follows. One end of the connecting member 23 is inserted into a hole provided in the mounting portion 22b of the sleeve portion 21 and compressed. On the other hand, one end of the lead portion 20 is inserted into one hole of the mounting member 24 and compressed.
- the other end of the connecting member 23 is inserted into the other hole of the mounting member 24 and compressed to connect the lead portion 20 and the sleeve portion 21.
- the connecting member 23 having a braided material that can be bent in a flexible manner, the connection between the lead portion 20 and the sleeve portion 21 is facilitated. The amount can be absorbed by the deformation of the connecting member 23.
- FIG. 4 is a top view schematically showing the arrangement of the leads on the insulating member.
- the leads 20 are arranged such that the distance required for phase insulation can be maintained.
- each lead portion 20 was arranged so as to form an equilateral triangle having its center at the vertex.
- the second conductor layer When the three-phase cable shown in this example is used for AC power transmission, the second conductor layer apparently acts as a shield with respect to the first conductor layer, and the third conductor layer with respect to the second conductor layer. The layer apparently acts as a shield. Then, the cable shield layer 6 acts as a shield for the third conductor layer. Normally, since the shield layer is grounded, the cable shield layer 6 The ground is established via the refrigerant tank 10 and the heat insulating tank 40 shown in FIG. 3 (A). However, the second conductor layer and the third conductor layer are high voltage parts with respect to the ground. Therefore, these superconducting conductor layers need to be insulated from the ground. However, in the present invention, since the insulating member 30 is arranged on the outer periphery of the lead portion 20 as described above, the second conductor layer and the third conductor layer are insulated from the ground by the lead portion 20.
- Such an insulating member 30 was formed of an epoxy resin. Further, in this example, the three lead portions 20 are formed integrally.
- the specific shape of the insulating member 30 is cylindrical as shown in FIG. 3 (A), and flange portions 31 and 32 are provided on both end surfaces.
- the flange portion 32 is a fixed portion to the heat insulating tank 40.
- the insulating member 30 also functions as a sealing material for the refrigerant tank 10.
- the insulating member 30 is fixed in the heat insulating tank 40 by fixing the flange portion 32 and the heat insulating tank 40 (lid portion 42) with a fixing metal such as a bolt.
- a heat insulating tank 40 is provided on the outer periphery of the refrigerant tank 10 and the outer periphery of the insulating member 30 for preventing heat from entering the refrigerant tank 10 from the outside so as to cover them.
- the heat insulating tank 40 is formed of stainless steel, and has a dividable configuration including a main body 41 and a lid 42 that can be attached to and detached from the main body 41.
- the boundary between the main body 41 and the lid 42 is the same as the boundary between the insulating member 30 and the refrigerant tank 10.
- the lid portion 42 is formed in a cylindrical shape, and one of the opening force lead portions 20 can be protruded.
- the lead portion 20 protrudes from one opening of the lid portion 42. It will be in a state of having done.
- the lid 42 is fixed to the main body 41 by providing flanges in the openings of both the lid 42 and the main body 41, overlapping these flanges, and tightening fixing brackets such as bolts. went.
- the side of the lid portion 42 from which the lead portion 20 protrudes is fixed to the insulating member 30 by a fixture such as a bolt.
- a heat insulating material (not shown) is arranged on the outer periphery of the refrigerant tank 10 and the outer periphery of the insulating member 30, and the inside of the heat insulating tank 40 is evacuated to enhance heat insulating properties.
- an insulator tube 50 is disposed on the outer periphery of the normal temperature side protruding from the insulating member 30 by a distance, an upper shield 51 is disposed in the opening, and an insulating fluid 52 such as insulating oil is disposed inside. Is filling.
- the insulator tube is arranged in this example, it may be an insulating tube formed of epoxy resin or the like.
- the terminal structure of the coaxial three-phase superconducting cable having the above configuration does not require a branch box and connects the three phases to the normal temperature side with one terminal connection box, as compared to the three-core type terminal structure. Since the connection can be continued, the connection structure at the terminal portion can be reduced in size.
- the terminal structure of the present invention is optimally constructed at a connection portion between the cryogenic temperature side and the normal temperature side. Further, this terminal structure may be applied to a connection part with a normal temperature side in a line for transmitting electric power by a superconducting cable.
Landscapes
- Physics & Mathematics (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
- Gas Or Oil Filled Cable Accessories (AREA)
- Superconductors And Manufacturing Methods Therefor (AREA)
- Containers, Films, And Cooling For Superconductive Devices (AREA)
Abstract
Description
Claims
Priority Applications (7)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CA002558575A CA2558575A1 (en) | 2004-03-04 | 2005-02-17 | Terminal structure of polyphase superconducting cable |
DE602005004654T DE602005004654D1 (de) | 2004-03-04 | 2005-02-17 | Endverschlussstruktur eines mehrphasigen supraleitenden kabels |
US10/590,914 US20070137881A1 (en) | 2004-03-04 | 2005-02-17 | Terminal structure of multiphase superconducting cable |
RU2006134973/09A RU2006134973A (ru) | 2004-03-04 | 2005-02-17 | Концевая муфта многофазного сверхпроводящего кабеля |
EP05719226A EP1732190B1 (en) | 2004-03-04 | 2005-02-17 | Terminal structure of multiphase superconducting cable |
TW094105997A TW200532711A (en) | 2004-03-04 | 2005-03-01 | Terminals of multiphase superconducting cable |
NO20064470A NO20064470L (no) | 2004-03-04 | 2006-10-03 | Terminalstruktur for flerfaset superlederkabel |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2004-060763 | 2004-03-04 | ||
JP2004060763A JP2005253204A (ja) | 2004-03-04 | 2004-03-04 | 多相超電導ケーブルの端末構造 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2005086306A1 true WO2005086306A1 (ja) | 2005-09-15 |
Family
ID=34918029
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2005/002424 WO2005086306A1 (ja) | 2004-03-04 | 2005-02-17 | 多相超電導ケーブルの端末構造 |
Country Status (11)
Country | Link |
---|---|
US (1) | US20070137881A1 (ja) |
EP (1) | EP1732190B1 (ja) |
JP (1) | JP2005253204A (ja) |
KR (1) | KR20070003897A (ja) |
CN (1) | CN1930749A (ja) |
CA (1) | CA2558575A1 (ja) |
DE (1) | DE602005004654D1 (ja) |
NO (1) | NO20064470L (ja) |
RU (1) | RU2006134973A (ja) |
TW (1) | TW200532711A (ja) |
WO (1) | WO2005086306A1 (ja) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2007188844A (ja) * | 2006-01-16 | 2007-07-26 | Sumitomo Electric Ind Ltd | 超電導ケーブル |
DE202008017997U1 (de) | 2007-03-21 | 2011-04-07 | Nkt Cables Ultera A/S | Abschlusseinheit |
CN102568690A (zh) * | 2011-12-08 | 2012-07-11 | 上海摩恩电气股份有限公司 | 可抑制高次谐波的变频电缆 |
Families Citing this family (22)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP4927804B2 (ja) * | 2007-11-14 | 2012-05-09 | 住友電気工業株式会社 | 超電導ケーブルの端末接続構造 |
JP5619731B2 (ja) * | 2009-04-28 | 2014-11-05 | 公益財団法人国際超電導産業技術研究センター | 超電導線材の電流端子構造及びこの電流端子構造を備える超電導ケーブル |
FR2949623B1 (fr) * | 2009-09-03 | 2011-11-11 | Nexans | Dispositif supraconducteur |
EP2383854A1 (de) * | 2010-04-28 | 2011-11-02 | Nexans | Anordnung mit einem supraleitfähigen Kabel |
CN102884693B (zh) * | 2010-05-31 | 2016-03-23 | 古河电气工业株式会社 | 极低温电缆用终端连接部 |
EP2685468B1 (en) * | 2010-08-31 | 2019-10-30 | 3M Innovative Properties Company | High density shielded electrical cable and other shielded cables, systems, and methods |
US8492656B2 (en) * | 2010-09-07 | 2013-07-23 | General Electric Company | High voltage bushing |
JP2012209134A (ja) * | 2011-03-30 | 2012-10-25 | Sumitomo Electric Ind Ltd | 接続ユニット及び接続構造 |
FR2975236B1 (fr) * | 2011-05-11 | 2017-03-31 | Nexans | Unite de terminaison pour cable supraconducteur multiphase |
JP5246453B2 (ja) | 2011-11-24 | 2013-07-24 | 住友電気工業株式会社 | 超電導ケーブルの臨界電流測定方法 |
JP5307956B1 (ja) * | 2011-12-20 | 2013-10-02 | 三菱電機株式会社 | リード線の絶縁構造、これを有する変圧器、および、リード線の絶縁方法 |
JP5811405B2 (ja) * | 2012-02-28 | 2015-11-11 | 住友電気工業株式会社 | 超電導ケーブルシステム |
CN104577381A (zh) * | 2014-12-30 | 2015-04-29 | 苏州欧美克合金工具有限公司 | 一种三相一体冷绝缘超导电缆端头 |
EP3065243B1 (en) * | 2015-03-05 | 2019-05-08 | Nexans | Termination unit for a superconducting cable |
RU2719767C1 (ru) * | 2017-05-31 | 2020-04-23 | ДжФЕ СТИЛ КОРПОРЕЙШН | Теплоизолированная многослойная труба для передачи электроэнергии в условиях сверхпроводимости |
CN108306124B (zh) * | 2017-12-12 | 2019-08-30 | 北京交通大学 | 应用于超导电缆终端上的整体插拔式电流引线结构 |
US10985538B2 (en) * | 2018-05-25 | 2021-04-20 | Leoni Bordnetz-Systeme Gmbh | System and method for reducing air volume in a splitter |
US10872713B1 (en) * | 2019-07-09 | 2020-12-22 | Nkt Hv Cables Ab | Power cable system with cooling capability |
CN111987685B (zh) * | 2020-08-21 | 2023-04-07 | 上海国际超导科技有限公司 | 超导电缆的终端结构 |
CN112993914A (zh) * | 2021-02-06 | 2021-06-18 | 戚鑫 | 电力设备用管线进线口防水装置 |
CN113130131A (zh) * | 2021-04-15 | 2021-07-16 | 华北电力大学 | 一种冷绝缘低损耗高载流容量高温超导交流电缆 |
FR3125914A1 (fr) * | 2021-07-27 | 2023-02-03 | Nexans | Système de câble supraconducteur |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH06295625A (ja) * | 1993-04-05 | 1994-10-21 | Sumitomo Electric Ind Ltd | 酸化物超電導線材およびその使用方法 |
JPH11262162A (ja) * | 1998-03-12 | 1999-09-24 | Furukawa Electric Co Ltd:The | 極低温ケーブルの終端接続装置 |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3902000A (en) * | 1974-11-12 | 1975-08-26 | Us Energy | Termination for superconducting power transmission systems |
JPS6417312A (en) * | 1987-07-10 | 1989-01-20 | Fujikura Ltd | Superconducting coaxial cable |
JPH01204311A (ja) * | 1988-02-09 | 1989-08-16 | Fujitsu Ltd | 超伝導ケーブル |
JP3547222B2 (ja) * | 1995-08-11 | 2004-07-28 | 古河電気工業株式会社 | 多層超電導ケーブル |
IT1281651B1 (it) * | 1995-12-21 | 1998-02-20 | Pirelli Cavi S P A Ora Pirelli | Terminale per collegare un cavo polifase superconduttivo ad un impianto elettrico a temperatura ambiente |
JP3796850B2 (ja) * | 1996-10-21 | 2006-07-12 | 住友電気工業株式会社 | 超電導ケーブル導体の端末構造およびその接続方法 |
JPH1173824A (ja) * | 1997-08-28 | 1999-03-16 | Tokyo Electric Power Co Inc:The | 超電導ケーブル終端部 |
JP2001006453A (ja) * | 1999-06-24 | 2001-01-12 | Sumitomo Electric Ind Ltd | 超電導ケーブル接続部 |
EP1283576B1 (en) * | 2001-02-13 | 2013-11-06 | Sumitomo Electric Industries, Ltd. | Terminal structure of extreme-low temperature equipment |
-
2004
- 2004-03-04 JP JP2004060763A patent/JP2005253204A/ja active Pending
-
2005
- 2005-02-17 CA CA002558575A patent/CA2558575A1/en not_active Abandoned
- 2005-02-17 KR KR1020067017848A patent/KR20070003897A/ko not_active Application Discontinuation
- 2005-02-17 WO PCT/JP2005/002424 patent/WO2005086306A1/ja active IP Right Grant
- 2005-02-17 DE DE602005004654T patent/DE602005004654D1/de not_active Expired - Fee Related
- 2005-02-17 RU RU2006134973/09A patent/RU2006134973A/ru not_active Application Discontinuation
- 2005-02-17 US US10/590,914 patent/US20070137881A1/en not_active Abandoned
- 2005-02-17 CN CNA2005800069453A patent/CN1930749A/zh active Pending
- 2005-02-17 EP EP05719226A patent/EP1732190B1/en not_active Expired - Fee Related
- 2005-03-01 TW TW094105997A patent/TW200532711A/zh unknown
-
2006
- 2006-10-03 NO NO20064470A patent/NO20064470L/no not_active Application Discontinuation
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH06295625A (ja) * | 1993-04-05 | 1994-10-21 | Sumitomo Electric Ind Ltd | 酸化物超電導線材およびその使用方法 |
JPH11262162A (ja) * | 1998-03-12 | 1999-09-24 | Furukawa Electric Co Ltd:The | 極低温ケーブルの終端接続装置 |
Non-Patent Citations (1)
Title |
---|
See also references of EP1732190A4 * |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2007188844A (ja) * | 2006-01-16 | 2007-07-26 | Sumitomo Electric Ind Ltd | 超電導ケーブル |
DE202008017997U1 (de) | 2007-03-21 | 2011-04-07 | Nkt Cables Ultera A/S | Abschlusseinheit |
US8624109B2 (en) | 2007-03-21 | 2014-01-07 | Nkt Cables Ultera A/S | Termination unit |
US9331468B2 (en) | 2007-03-21 | 2016-05-03 | Nkt Cables Ultera A/S | Termination unit |
CN102568690A (zh) * | 2011-12-08 | 2012-07-11 | 上海摩恩电气股份有限公司 | 可抑制高次谐波的变频电缆 |
Also Published As
Publication number | Publication date |
---|---|
US20070137881A1 (en) | 2007-06-21 |
DE602005004654D1 (de) | 2008-03-20 |
JP2005253204A (ja) | 2005-09-15 |
EP1732190A1 (en) | 2006-12-13 |
RU2006134973A (ru) | 2008-04-10 |
CA2558575A1 (en) | 2005-09-15 |
EP1732190A4 (en) | 2007-05-02 |
EP1732190B1 (en) | 2008-02-06 |
NO20064470L (no) | 2006-10-03 |
CN1930749A (zh) | 2007-03-14 |
KR20070003897A (ko) | 2007-01-05 |
TW200532711A (en) | 2005-10-01 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
WO2005086306A1 (ja) | 多相超電導ケーブルの端末構造 | |
US8463341B2 (en) | Superconducting element joint, a process for providing a superconducting element joint and a superconducting cable system | |
KR101118374B1 (ko) | 초전도 케이블 선로 | |
JP4593933B2 (ja) | 多相超電導ケーブルの接続構造 | |
RU2366016C2 (ru) | Силовая кабельная линия | |
US20090197769A1 (en) | Electric power feed structure for superconducting apparatus | |
EP1772875A1 (en) | Superconductive cable line | |
WO2005086291A1 (ja) | 超電導ケーブルの中間接続部 | |
US8594756B2 (en) | Superconducting element joint, a process for providing a superconducting element joint and a superconducting cable system | |
JP2005100776A (ja) | 超電導ケーブルの端末構造 | |
JP6791782B2 (ja) | 超電導機器の端末構造 | |
CN110265802A (zh) | 一种基于ybco超导材料的超导电缆端部连接结构 | |
EP3125387A1 (en) | Terminal structure for superconducting cable | |
EP1489710B1 (en) | Phase split structure of multiphase superconducting cable | |
JP5807849B2 (ja) | 超電導ケーブルの中間接続部材及び超電導ケーブルの中間接続構造 | |
JP2005341767A (ja) | 超電導ケーブルの端末構造 | |
JP2020028134A (ja) | 超電導ケーブルの端末構造 | |
JP4471095B2 (ja) | 分岐電力の引き出し構造 | |
CN114242334B (zh) | 一种三相同轴超导交流电缆的中间接头 | |
JP5454892B2 (ja) | 常電導導体の引出構造 | |
JP2020028132A (ja) | 超電導機器の端末構造 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
AK | Designated states |
Kind code of ref document: A1 Designated state(s): AE AG AL AM AT AU AZ BA BB BG BR BW BY BZ CA CH CN CO CR CU CZ DE DK DM DZ EC EE EG ES FI GB GD GE GH GM HR HU ID IL IN IS KE KG KP KR KZ LC LK LR LS LT LU LV MA MD MG MK MN MW MX MZ NA NI NO NZ OM PG PH PL PT RO RU SC SD SE SG SK SL SM SY TJ TM TN TR TT TZ UA UG US UZ VC VN YU ZA ZM ZW |
|
AL | Designated countries for regional patents |
Kind code of ref document: A1 Designated state(s): GM KE LS MW MZ NA SD SL SZ TZ UG ZM ZW AM AZ BY KG KZ MD RU TJ TM AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LT LU MC NL PL PT RO SE SI SK TR BF BJ CF CG CI CM GA GN GQ GW ML MR NE SN TD TG |
|
121 | Ep: the epo has been informed by wipo that ep was designated in this application | ||
WWE | Wipo information: entry into national phase |
Ref document number: 2007137881 Country of ref document: US Ref document number: 10590914 Country of ref document: US |
|
WWE | Wipo information: entry into national phase |
Ref document number: 2005719226 Country of ref document: EP |
|
WWE | Wipo information: entry into national phase |
Ref document number: 2558575 Country of ref document: CA Ref document number: 1020067017848 Country of ref document: KR |
|
WWE | Wipo information: entry into national phase |
Ref document number: 200580006945.3 Country of ref document: CN |
|
NENP | Non-entry into the national phase |
Ref country code: DE |
|
WWW | Wipo information: withdrawn in national office |
Country of ref document: DE |
|
WWE | Wipo information: entry into national phase |
Ref document number: 2006134973 Country of ref document: RU |
|
WWP | Wipo information: published in national office |
Ref document number: 2005719226 Country of ref document: EP |
|
WWP | Wipo information: published in national office |
Ref document number: 1020067017848 Country of ref document: KR |
|
WWP | Wipo information: published in national office |
Ref document number: 10590914 Country of ref document: US |
|
WWG | Wipo information: grant in national office |
Ref document number: 2005719226 Country of ref document: EP |