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1. 发明专利

JP2002355574A ELECTRODE FOR DISINTEGRATOR, DISINTEGRATOR AND DISINTEGRATION METHOD 失效
公开(公告)号：JP2002355574A
公开(公告)日：2002-12-10
申请号：JP2001163908
申请日：2001-05-31
申请人： SUMITOMO ELECTRIC INDUSTRIES
发明人： OKAZAKI TORU , HATA RYOSUKE
IPC分类号： B02C19/18
摘要： PROBLEM TO BE SOLVED: To provide an electrode for disintegrator by which media can be surely supplied to a segment to carry out disintegration regardless of the positions and size of a lower hole, a disintegrator and a disintegration method. SOLUTION: The electrode 1 for the disintegrator has a one cylindrical conductor 3 which extends in a certain direction and includes a through-hole extending along this direction, another conductor 4 which extends in the same direction as the extending direction of the one cylindrical conductor 3 and is arranged to face the one cylindrical conductor 3 across a dielectric substance and supply means 25 and 26 which supply the media 11 through the through-hole of the one cylindrical conductor 3.

2. 发明专利

JP2002291154A DC POWER SUPPLY UNIT 失效
公开(公告)号：JP2002291154A
公开(公告)日：2002-10-04
申请号：JP2001093960
申请日：2001-03-28
申请人： SUMITOMO ELECTRIC INDUSTRIES
发明人： HATA RYOSUKE
IPC分类号： H02J7/00 , H01M10/44 , H02J1/00
摘要： PROBLEM TO BE SOLVED: To provide a DC power supply unit capable of supplying power without using a converter. SOLUTION: This DC power supply unit includes a secondary battery 20 between a generator 10 and DC loads 41, 42, 43. The secondary battery 20 is constituted of a plurality of cells connected in series, and is directly connected to the DC loads 41, 42, 43 so that voltage equal to the voltages of the DC loads 41, 42, 43 is capable of being applied.

3. 发明专利

JP2002208318A PULSE CURRENT SUPPLY CABLE 失效
公开(公告)号：JP2002208318A
公开(公告)日：2002-07-26
申请号：JP2001001921
申请日：2001-01-09
申请人： SUMITOMO ELECTRIC INDUSTRIES
发明人： OKAZAKI TORU , KUWABARA MASAHIRO , HATA RYOSUKE , FURUKAWA KOHEI , HIROTSU KENICHI
IPC分类号： H01B7/04 , H01B9/04
摘要： PROBLEM TO BE SOLVED: To provide a light weight pulse current supply cable that has small inductance without increasing electric resistance value. SOLUTION: This is a power cable that comprises an internal conductor, an insulating layer and an outer conductor. The internal conductor is a metal layer formed at the outer circumference of a core material. As a specific configuration of the metal conductor, a copper wire 11 is stranded in spiral form on the core material 10 and a copper tape 12 is wound on top of it. It is desirable that the thickness of the internal conductor is based on the thickness of the outer case that corresponds to the frequency of the flowing current.

4. 发明专利

JP2001084847A AC O.F. POWER CABLE 失效
公开(公告)号：JP2001084847A
公开(公告)日：2001-03-30
申请号：JP25707899
申请日：1999-09-10
申请人： SUMITOMO ELECTRIC INDUSTRIES
发明人： HIROTA HIROSHI , HATA RYOSUKE , KONDO MAMORU , TAKIGAWA YASUSHI , YODA JUN , HORIKAWA TAKAHIRO , SEKI MORIHIRO
IPC分类号： H01B7/17 , H01B9/00
摘要： PROBLEM TO BE SOLVED: To provide a compact AC O.F. (oil-filled) power cable having an insulation reduced in thickness. SOLUTION: This power cable is equipped with an insulation layer 3 on the periphery of a conductor 1. Laminate paper made by bonding kraft paper to at least one side of a plastic film is used as the layer 3. The rate of plastics disposed in the laminate paper is larger on the periphery side than on the conductor side. Preferably, at least a part of the kraft paper used is previously given ε (dielectric constant)-increasing treatment. Insulation properties of the layer 3 are improved by using the laminate paper superior to kraft paper in electric breakdown characteristic and by grading it by ε.

5. 发明专利

JP2000268648A DIRECT-CURRENT SOLID POWER CABLE, DIRECT-CURRENT SOLID POWER CABLE LINE, AND MONITORING METHOD OF DIRECT- CURRENT SOLID POWER CABLE LINE 失效
公开(公告)号：JP2000268648A
公开(公告)日：2000-09-29
申请号：JP6909699
申请日：1999-03-15
申请人： SUMITOMO ELECTRIC INDUSTRIES
发明人： HATA RYOSUKE
IPC分类号： G01R31/12 , G01R31/08 , H01B7/14 , H01B7/17 , H01B7/32 , H01B9/00 , H01B11/22 , H02G1/10 , H02G9/00
摘要： PROBLEM TO BE SOLVED: To provide a direct-current solid power cable and a direct-current solid power cable line capable of suppressing an environmental problem and an electrolytic corrosion problem without laying a grounding (neutral) cable in the case of a seawater return circuit mode, and to provide a monitoring method of the direct-current solid power cable line. SOLUTION: In a direct-current power cable equipped with a conductor, an insulator, a metallic sheath 1, a corrosion proofing layer 2, and armoring wire 4A, 4B, the armoring wire 4A, 4B is used as passages for return current. The armoring wire 4A, 4B is each formed of a multiplicity of wires, and copper wire is used as the inner armoring wire 4A while iron wire is used as the outer armoring wire 4B. Because of the ionization tendency, the outer armoring wire 4B is electrolytically corroded earlier tan the inner armoring wire 4A, and therefore the inner armoring wire 4A is protected.

6. 发明专利

JP2000222951A OIL IMPREGNATED SOLID POWER CABLE 失效
公开(公告)号：JP2000222951A
公开(公告)日：2000-08-11
申请号：JP2586199
申请日：1999-02-03
申请人： SUMITOMO ELECTRIC INDUSTRIES
发明人： KONDO MAMORU , HATA RYOSUKE , TAKIGAWA YASUSHI , YODA JUN , HORIKAWA TAKAHIRO , SEKI MORIHIRO
IPC分类号： H01B3/20 , H01B3/28 , H01B9/06
摘要： PROBLEM TO BE SOLVED: To provide an oil impregnated solid power cable capable of preventing the formation of a void especially on a conductor and beneath a metal sheath. SOLUTION: This solid cable has an insulating layer 3 in the outer circumference of a conductor 1, an insulating tape containing a polyolefin base resin film is used in at least part of the insulating layer 3, and insulating oil is impregnated in the insulating layer 3. The insulating oil has a viscosity of 10 cSt or more but less than 500 cSt at 60 deg.C. Solid rubber having an average molecular weight of 50,000 or more but less than 2,000,000 is contained in part of the insulating oil.

7. 发明专利

JPH11329102A OIL IMPREGNATED SOLID POWER CABLE 失效
公开(公告)号：JPH11329102A
公开(公告)日：1999-11-30
申请号：JP15666398
申请日：1998-05-20
申请人： SUMITOMO ELECTRIC INDUSTRIES
发明人： KONDO MAMORU , HATA RYOSUKE , TAKIGAWA YASUSHI , YODA JUN , SEKI MORIHIRO , ASHIBE YUICHI , HORIKAWA TAKAHIRO
IPC分类号： H01B9/06
摘要： PROBLEM TO BE SOLVED: To provide an oil-impregnated solid power cable capable of shortening impregnation time of insulating oil and having a good electric performance. SOLUTION: In an oil-impregnated solid power cable having an insulating layer 3 which is impregnated with insulating oil, an insulating tape containing polyolefin resin film is used for at least a part of the insulating layer 3. The SP value (solubility parameter value) of the insulating oil to be used is not less than 8.5 and not more than 7.5. A composite tape in which craft paper is laminated on at least one side of the polyolefin resin film and the insulating film of polyolefin resin film alone are preferably wound around alternately to form at least a part of the insulating layer 3.

8. 发明专利

JPH11176264A MANUFACTURE OF SOLID POWER CABLE 失效
公开(公告)号：JPH11176264A
公开(公告)日：1999-07-02
申请号：JP35210797
申请日：1997-12-06
申请人： SUMITOMO ELECTRIC INDUSTRIES
发明人： KONDO MAMORU , HATA RYOSUKE , TAKIGAWA YASUSHI , YODA JUN , HORIKAWA TAKAHIRO , SEKI MORIHIRO
IPC分类号： H01B9/06 , H01B13/30
摘要： PROBLEM TO BE SOLVED: To manufacture a solid power cable which admits impregnation of a high viscosity oil after getting rid of oil satisfactorily whereby an appropriate amount wet swelling of a polyolefin resin film can be obtained even if the content of polyolefin resin film is increased for a laminate paper to form an insulative layer heightens. SOLUTION: A craft paper is laminated on at least one surface of a polyolefin resin film to form a laminate paper, in which the thickness of the polyolefin resin film is between 40-90% of the total thickness, and the obtained laminate paper is wound round a conductor 1 to generate an insulative layer 3, which is previously subjected to an impregnating process with an insulation oil having an SP value (coefficient of solubility) between 7.5 and 8.5 and a viscosity at 40 deg.C between 20 and 500 centi-Stoke, and then the insulation oil gets rid of oil, followed by impregnation with the resultant insulation oil given a viscosity at 40 deg.C over 600 centi-Stoke.

9. 发明专利

JPH11149831A SOLID DC CABLE 失效
公开(公告)号：JPH11149831A
公开(公告)日：1999-06-02
申请号：JP33515597
申请日：1997-11-18
申请人： SUMITOMO ELECTRIC INDUSTRIES
发明人： YODA JUN , HATA RYOSUKE , TAKIGAWA YASUSHI
IPC分类号： H01B3/52 , H01B9/06
摘要： PROBLEM TO BE SOLVED: To provide a solid DC cable in which discharging in a void can be suppressed, even if void are produced in an insulating layer immediately above a conductor, when load is shut down. SOLUTION: An insulating layer 3 is constituted by a main insulating layer 3A composed of a composite tape made by bonding plastic film and kraft paper, and a kraft paper layer 3B composed of kraft paper with a resistance lower than that of the composite tape. The kraft paper layer 3B is provided immediately above a conductor in a range, where insulating oil gets negatively pressured when shutting down a load. Since a DC electric field sharing is made proportional to the resistance of the insulating layer 3 at each position, the kraft paper layer 3B does not take a share in the DC electric field, so that even if voids are produced in this part, discharging in the void can be suppressed. The kraft paper layer 3B can be provided on the circumference of the main insulating layer 3A.

10. 发明专利

JPH10302553A SOLID DC CABLE 失效
公开(公告)号：JPH10302553A
公开(公告)日：1998-11-13
申请号：JP12635297
申请日：1997-04-29
申请人： SUMITOMO ELECTRIC INDUSTRIES
发明人： YODA JUN , HATA RYOSUKE , TAKIGAWA YASUSHI
IPC分类号： H01B3/52 , H01B9/00 , H01B9/06
摘要： PROBLEM TO BE SOLVED: To suppress the generation of voids when a load is shut off by winding thin kraft paper in which density and air resistance are the specified value or more and thickness is less than the specified value in the region of the range where insulating oil becomes negative pressure when a load is shut off in an insulating layer in the vicinity of a conductor. SOLUTION: An insulating layer 3 is formed by winding kraft paper, and kraft paper having a thickness of 50 μm is used in an insulating layer 3A in the vicinity of a conductor 1, or on the inner circumferential side. The thin kraft paper has a density of 1.0 g/cm or more, an air resistance of 5000 G.sec or more, and winding thickness of the thin kraft paper is limited to 2 mm. In an insulating layer 3B on the outer circumferential side, the thin kraft paper or kraft paper having a thickness of 70 μm or more is used. The region for winding the thin kraft paper is limited to the main part within the range where negative pressure is generated in insulating oil when a load is shut off. The generation of voids in just above the conductor 1, where voids are generated most easily in partially, not in the whole is suppressed.

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