JPH07201230A - Conductor for high-temperature superconductive power cable, and high-temperature superconductive power cable - Google Patents
Conductor for high-temperature superconductive power cable, and high-temperature superconductive power cableInfo
- Publication number
- JPH07201230A JPH07201230A JP5336323A JP33632393A JPH07201230A JP H07201230 A JPH07201230 A JP H07201230A JP 5336323 A JP5336323 A JP 5336323A JP 33632393 A JP33632393 A JP 33632393A JP H07201230 A JPH07201230 A JP H07201230A
- Authority
- JP
- Japan
- Prior art keywords
- conductor
- power cable
- case
- superconducting
- temperature superconductive
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- 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
Landscapes
- Superconductors And Manufacturing Methods Therefor (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は高温超電導電力ケーブル
に使用される高温超電導電力ケーブル用導体及び高温超
電導電力ケーブルに関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a conductor for a high temperature superconducting power cable used in a high temperature superconducting power cable and a high temperature superconducting power cable.
【０００２】[0002]
【従来の技術】従来の高温超電導電力ケーブルは、図５
に示すように、その中央に液体窒素等の冷媒が通流する
コアとしての円筒状フォーマー２１の外周面に、超電導
材料からなる複数本の超電導導体２３がケーブル軸方向
に螺旋状（又は直線状）に延びるように積層配置されて
いる。これらの超電導導体２３はテープ状をなし、ケー
ブル周方向に密に配置され、例えば２層に積層されてい
る。そして、これらの超電導導体２３の上に、絶縁層２
３が積層されている。2. Description of the Related Art A conventional high temperature superconducting power cable is shown in FIG.
As shown in FIG. 2, a plurality of superconducting conductors 23 made of a superconducting material are spirally (or linearly) formed in the cable axial direction on the outer peripheral surface of a cylindrical former 21 as a core through which a refrigerant such as liquid nitrogen flows. ) Is arranged so as to extend. These superconducting conductors 23 are in the form of a tape and are densely arranged in the cable circumferential direction and are, for example, laminated in two layers. Then, the insulating layer 2 is formed on the superconducting conductor 23.
3 are stacked.
【０００３】また、従来の他の高温超電導電力ケーブル
は、図６に示すように、フォーマー３１の外周面にケー
ブル軸方向に螺旋状（又は直線状）に延びる溝３１ａを
形成し、断面がＵ字形のケース３５内にテープ状の複数
個の超電導導体テープ３４を積層し、この超電導導体テ
ープ３４とケース３５からなる超電導導体３３を溝３１
内に嵌合して構成されている。そして、フォーマー３１
の周面上に絶縁層３２が積層されている。As shown in FIG. 6, another conventional high-temperature superconducting power cable has a groove 31a extending spirally (or linearly) in the cable axial direction on the outer peripheral surface of the former 31, and has a U-shaped cross section. A plurality of tape-shaped superconducting conductor tapes 34 are laminated in a letter-shaped case 35, and the superconducting conductor 33 composed of the superconducting conductor tape 34 and the case 35 is formed into the groove 31.
It is configured to fit inside. And the former 31
The insulating layer 32 is laminated on the peripheral surface of the.
【０００４】[0004]
【発明が解決しようとする課題】しかしながら、図５に
示す従来の高温超電導電力ケーブルは、絶縁層２２及び
更にその外側に配置される層による締め付け力により、
超電導導体２３には押圧力が作用している。この押圧力
により超電導導体２３に歪みが発生して超電導特性が劣
化するという難点がある。However, in the conventional high temperature superconducting power cable shown in FIG. 5, the tightening force of the insulating layer 22 and the layer arranged outside the insulating layer 22 causes
A pressing force acts on the superconducting conductor 23. This pressing force has a drawback that the superconducting conductor 23 is distorted and the superconducting characteristics are deteriorated.
【０００５】また、図６に示す従来の高温超電導電力ケ
ーブルは、超電導導体３４に対する締め付け力が作用し
ないように、最上層の超電導導体テープ３４の位置をフ
ォーマー３１の周面よりも低い位置にしている。このた
め、図７に示すように、フォーマー３１の周面と最上層
の超電導導体テープ３４との間には段差Ｄが発生し、電
界集中が発生し、電気絶縁性が劣化するという欠点があ
る。Further, in the conventional high temperature superconducting power cable shown in FIG. 6, the position of the uppermost superconducting tape 34 is lower than the peripheral surface of the former 31 so that the tightening force on the superconducting conductor 34 does not act. There is. Therefore, as shown in FIG. 7, a step D occurs between the peripheral surface of the former 31 and the uppermost superconducting conductor tape 34, electric field concentration occurs, and electrical insulation deteriorates. .
【０００６】本発明はかかる問題点に鑑みてなされたも
のであって、締め付け力が作用しても超電導特性が劣化
することがなく、また、フォーマーの周面との間に段差
が生じない高温超電導電力ケーブル用導体及び高温超電
導電力ケーブルを提供することを目的とする。The present invention has been made in view of the above problems, and does not deteriorate the superconducting characteristics even when a tightening force is applied, and does not cause a step between the former and the peripheral surface of the former. An object is to provide a conductor for a superconducting power cable and a high temperature superconducting power cable.
【０００７】[0007]
【課題を解決するための手段】本発明に係る高温超電導
電力ケーブル用導体は、高温超電導材を備えた複数の導
体テープと、この導体テープを複数個収納する金属又は
合金製ケースと、このケース内に前記導体テープと共に
収納され弾力を有する応力緩和部材とを有することを特
徴とする。A conductor for a high-temperature superconducting power cable according to the present invention comprises a plurality of conductor tapes provided with a high-temperature superconducting material, a metal or alloy case accommodating a plurality of the conductor tapes, and this case. And a stress relieving member having elasticity, which is housed together with the conductor tape.
【０００８】本発明に係る高温超電導電力ケーブルは、
高温超電導材を備えた複数の導体テープと、この導体テ
ープを複数個収納する金属又は合金製ケースと、このケ
ース内に前記導体テープと共に収納され弾力を有する応
力緩和部材と、前記ケースが嵌合される溝部を備えたコ
アとを有することを特徴とする。The high temperature superconducting power cable according to the present invention comprises:
A plurality of conductor tapes provided with a high temperature superconducting material, a metal or alloy case for accommodating a plurality of the conductor tapes, a stress relieving member accommodated together with the conductor tapes in the case and having an elastic force, and the case fitted together. And a core having a groove portion formed therein.
【０００９】本発明に係る高温超電導電力ケーブルは、
高温超電導材を備えた複数の導体テープと、この導体テ
ープを複数個収納する金属又は合金製ケースと、前記ケ
ースが嵌合される溝部を備えたコアと、前記溝部の内部
に前記ケースと共に収納された弾力を有する応力緩和部
材と、を有することを特徴とする。The high temperature superconducting power cable according to the present invention comprises:
A plurality of conductor tapes provided with a high temperature superconducting material, a metal or alloy case for storing a plurality of the conductor tapes, a core having a groove portion into which the case is fitted, and a casing inside the groove portion together with the case. And a stress relieving member having elastic force.
【００１０】[0010]
【作用】本発明においては、高温超電導材を備えた複数
の導体テープを金属又は合金製ケース内に収納している
ので、この導体テープに直接押圧力が作用することはな
い。In the present invention, since a plurality of conductor tapes provided with the high temperature superconducting material are housed in a metal or alloy case, the pressing force does not act directly on the conductor tapes.
【００１１】また、このケース内に、弾力を有する応力
緩和部材を導体テープと共に収納するか、又はケース
と、コアの溝底部との間に応力緩和部材を配置したの
で、導体テープとその上の絶縁層等の層との間に間隙が
生じることもない。In this case, the stress relaxation member having elasticity is accommodated together with the conductor tape, or the stress relaxation member is arranged between the case and the groove bottom of the core. No gap is formed between the insulating layer and other layers.
【００１２】このように、導体テープに直接押圧力が作
用することはないと共に、応力緩和部材を配置したの
で、絶縁層及びその外側に配置される各層の締め付け力
により超電導材に過大の応力が作用して超電導特性が劣
化してしまうこともない。As described above, since the pressing force does not act directly on the conductor tape and the stress relaxation member is arranged, an excessive stress is exerted on the superconducting material due to the tightening force of the insulating layer and each layer arranged outside thereof. It does not act to deteriorate the superconducting characteristics.
【００１３】[0013]
【実施例】以下、本発明の実施例について、添付の図面
を参照して具体的に説明する。図１は本発明の第１の実
施例に係る高温超電導電力ケーブルの一部を示す部分断
面図、図２はその高温超電導導体を示す斜視図である。
コアとしてその中央に冷媒が通流する円筒状のフォーマ
ー１の外周面には、ケーブル軸方向に延びる螺旋状又は
直線状の溝７が形成されており、この溝７内には超電導
導体３が嵌合して配設されている。そして、フォーマー
１を被覆するように絶縁層２が配置されている。Embodiments of the present invention will be specifically described below with reference to the accompanying drawings. FIG. 1 is a partial cross-sectional view showing a part of a high temperature superconducting power cable according to the first embodiment of the present invention, and FIG. 2 is a perspective view showing the high temperature superconducting conductor.
A spiral or linear groove 7 extending in the cable axial direction is formed on the outer peripheral surface of the cylindrical former 1 in the center of which the refrigerant flows as a core, and the superconducting conductor 3 is formed in the groove 7. It is fitted and arranged. The insulating layer 2 is arranged so as to cover the former 1.
【００１４】高温超電導導体３は図２に示すように角筒
状の金属又は合金製ケース５内に、複数個の導体テープ
６が積層されて収納されている。この導体テープ６は高
温超電導材をＡｇ等の金属からなるシース層で被覆した
ものであり、この導体テープ６自体は従来と同様の構造
のものを使用することができる。そして、この高温超電
導導体３には、そのケース５の底部に弾力を有する応力
緩和部材４が収納されている。前述の導体テープ６はこ
の応力緩和部材４の上に積層されている。この応力緩和
部材４としては、例えば、ＥＰベースの半導電ゴム等を
使用することができる。As shown in FIG. 2, the high temperature superconducting conductor 3 is housed in a rectangular tubular metal or alloy case 5 in which a plurality of conductor tapes 6 are laminated. The conductor tape 6 is formed by coating a high temperature superconducting material with a sheath layer made of a metal such as Ag, and the conductor tape 6 itself may have the same structure as the conventional one. The high temperature superconducting conductor 3 accommodates the elastic stress relaxation member 4 at the bottom of the case 5. The conductor tape 6 described above is laminated on the stress relaxation member 4. As the stress relaxation member 4, for example, EP-based semiconductive rubber or the like can be used.
【００１５】このように構成された本実施例の高温超電
導電力ケーブルにおいては、超電導材を含む各導体テー
プ６は金属又は合金製のケース５内に収納されているの
で、外層の配置時にその締め付け力により、押圧力が超
電導導体３に作用しても導体テープ６にはその押圧力が
直接作用することはない。また、ケース５内には応力緩
和部材４が収納されていて、導体テープ６とケース５の
内面との間に介在しているので、ケース５が歪んで応力
が導体テープ６に作用しようとしても応力緩和部材４に
よりこの応力が緩和される。従って、本実施例によれ
ば、導体テープ６に過大な応力が作用することはなく、
その超電導特性が劣化することはない。In the high-temperature superconducting power cable of this embodiment having the above-mentioned structure, the conductor tapes 6 containing the superconducting material are housed in the case 5 made of metal or alloy, so that they are fastened when the outer layer is arranged. Even if the pressing force acts on the superconducting conductor 3 due to the force, the pressing force does not act directly on the conductor tape 6. Further, since the stress relaxation member 4 is housed in the case 5 and is interposed between the conductor tape 6 and the inner surface of the case 5, even if the case 5 is distorted and stress acts on the conductor tape 6, This stress is relieved by the stress relieving member 4. Therefore, according to the present embodiment, excessive stress does not act on the conductor tape 6,
The superconducting property does not deteriorate.
【００１６】次に、図３及び図４を参照して本発明の他
の実施例について具体的に説明する。フォーマー１の外
周面にケーブル軸方向に延びる螺旋状又は直線状の溝７
が形成されており、この溝７内には超電導導体１３が嵌
合して配設されている。そして、フォーマー１を被覆す
るように絶縁層（図１参照）が配置されている。Next, another embodiment of the present invention will be specifically described with reference to FIGS. A spiral or linear groove 7 extending in the cable axial direction on the outer peripheral surface of the former 1.
Is formed, and the superconducting conductor 13 is fitted and disposed in the groove 7. An insulating layer (see FIG. 1) is arranged so as to cover the former 1.
【００１７】本実施例の超電導導体１３は、金属又は合
金製の角筒状のケース１５内に、導体テープ６と同様の
導体テープ１６が積層して収納されている。本実施例に
おいては、ケース１５内には導体テープ１６のみが配置
されている。そして、本実施例においては、溝７の底部
とケース１５の底部との間に弾力を有する応力緩和部材
１４が配置されている。The superconducting conductor 13 of this embodiment has a conductor tape 16 similar to the conductor tape 6 stacked and housed in a rectangular tubular case 15 made of metal or alloy. In this embodiment, only the conductor tape 16 is arranged inside the case 15. Further, in this embodiment, the stress relaxation member 14 having elasticity is arranged between the bottom of the groove 7 and the bottom of the case 15.
【００１８】このように構成された本実施例において
は、超電導導体１３に締め付け力が作用した場合に、こ
の締め付け力はケース１５と溝底部との間に配置された
応力緩和部材１４により緩和される。このため、導体テ
ープ１６に過大な応力が作用することはなく、超電導特
性の劣化が防止される。In this embodiment thus constructed, when a tightening force is applied to the superconducting conductor 13, this tightening force is relaxed by the stress relaxation member 14 arranged between the case 15 and the groove bottom. It Therefore, excessive stress does not act on the conductor tape 16, and deterioration of superconducting characteristics is prevented.
【００１９】[0019]
【発明の効果】以上説明したように、本発明によれば、
複数の導体テープを金属又は合金製ケース内に収納し、
このケース内に弾力を有する応力緩和部材を収納する
か、又はケースとコア溝との間に応力緩和部材を配置す
るので、外層の配置時に、締め付け力が作用してもこの
締め付け力により導体テープを構成する超電導材に過大
な応力が作用することが防止され、その超電導特性の劣
化が防止される。As described above, according to the present invention,
Store multiple conductor tapes in a metal or alloy case,
Since the stress relieving member having elasticity is accommodated in this case or the stress relieving member is arranged between the case and the core groove, even if a tightening force acts at the time of disposing the outer layer, the conductor tape is applied by this tightening force. Excessive stress is prevented from acting on the superconducting material constituting the superconducting material, and deterioration of the superconducting characteristics is prevented.
【図１】本発明の実施例に係る超電導電力ケーブルの一
部を示す断面図である。FIG. 1 is a sectional view showing a part of a superconducting power cable according to an embodiment of the present invention.
【図２】同じくその超電導導体を示す斜視図である。FIG. 2 is a perspective view showing the same superconducting conductor.
【図３】本発明の他の実施例に係る超電導電力ケーブル
の一部を示す断面図である。FIG. 3 is a sectional view showing a part of a superconducting power cable according to another embodiment of the present invention.
【図４】同じくその超電導導体を示す斜視図である。FIG. 4 is a perspective view showing the same superconducting conductor.
【図５】従来の高温超電導電力ケーブルの一部を示す断
面図である。FIG. 5 is a sectional view showing a part of a conventional high-temperature superconducting power cable.
【図６】従来の他の高温超電導電力ケーブルの一部を示
す断面図である。FIG. 6 is a sectional view showing a part of another conventional high-temperature superconducting power cable.
【図７】同じくその導体を示す模式図である。FIG. 7 is a schematic view showing the same conductor.
１、２１、３１；フォーマー ２；絶縁層 ３、１３、２３、３３；超電導導体 ４、１４；応力緩和部材 ５、１５；ケース ６、１６、３４；超電導導体テープ ７；溝 1, 21, 31; former 2; insulating layer 3, 13, 23, 33; superconducting conductor 4, 14; stress relaxation member 5, 15; case 6, 16, 34; superconducting conductor tape 7; groove
───────────────────────────────────────────────────── フロントページの続き (72)発明者 岩澤 力 東京都江東区木場１丁目５番１号 株式会 社フジクラ内 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Riki Iwasawa 1-5-1, Kiba, Koto-ku, Tokyo Inside Fujikura Ltd.
Claims (3)
と、この導体テープを複数個収納する金属又は合金製ケ
ースと、このケース内に前記導体テープと共に収納され
弾力を有する応力緩和部材とを有することを特徴とする
高温超電導電力ケーブル用導体。1. A plurality of conductor tapes provided with a high temperature superconducting material, a metal or alloy case containing a plurality of the conductor tapes, and a stress relaxation member housed together with the conductor tapes in the case and having elasticity. A conductor for a high-temperature superconducting power cable characterized by having.
と、この導体テープを複数個収納する金属又は合金製ケ
ースと、このケース内に前記導体テープと共に収納され
弾力を有する応力緩和部材と、前記ケースが嵌合される
溝部を備えたコアとを有することを特徴とする高温超電
導電力ケーブル。2. A plurality of conductor tapes provided with a high temperature superconducting material, a metal or alloy case accommodating a plurality of the conductor tapes, and a stress relieving member housed together with the conductor tapes in the case and having elasticity. A high temperature superconducting power cable, comprising: a core having a groove into which the case is fitted.
と、この導体テープを複数個収納する金属又は合金製ケ
ースと、前記ケースが嵌合される溝部を備えたコアと、
前記溝部の内部に前記ケースと共に収納された弾力を有
する応力緩和部材と、を有することを特徴とする高温超
電導電力ケーブル。3. A plurality of conductor tapes provided with a high-temperature superconducting material, a metal or alloy case accommodating a plurality of the conductor tapes, and a core having a groove portion into which the cases are fitted.
A high temperature superconducting power cable, comprising: an elastic stress relaxation member housed in the groove together with the case.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP05336323A JP3081097B2 (en) | 1993-12-28 | 1993-12-28 | High temperature superconducting power cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP05336323A JP3081097B2 (en) | 1993-12-28 | 1993-12-28 | High temperature superconducting power cable |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH07201230A true JPH07201230A (en) | 1995-08-04 |
| JP3081097B2 JP3081097B2 (en) | 2000-08-28 |
Family
ID=18297936
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP05336323A Expired - Fee Related JP3081097B2 (en) | 1993-12-28 | 1993-12-28 | High temperature superconducting power cable |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3081097B2 (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0955127A (en) * | 1995-08-11 | 1997-02-25 | Fujikura Ltd | Superconducting power cable |
| WO2006059447A1 (en) * | 2004-12-02 | 2006-06-08 | Sumitomo Electric Industries, Ltd. | Superconducting cable |
| JP2006216507A (en) * | 2005-02-07 | 2006-08-17 | Sumitomo Electric Ind Ltd | Superconductive cable |
| WO2007122670A1 (en) * | 2006-04-12 | 2007-11-01 | Sumitomo Electric Industries, Ltd. | Superconducting cable |
| CN115331885A (en) * | 2022-07-15 | 2022-11-11 | 中国科学院合肥物质科学研究院 | High temperature superconducting cable |
-
1993
- 1993-12-28 JP JP05336323A patent/JP3081097B2/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0955127A (en) * | 1995-08-11 | 1997-02-25 | Fujikura Ltd | Superconducting power cable |
| WO2006059447A1 (en) * | 2004-12-02 | 2006-06-08 | Sumitomo Electric Industries, Ltd. | Superconducting cable |
| JP2006164571A (en) * | 2004-12-02 | 2006-06-22 | Sumitomo Electric Ind Ltd | Superconductive cable |
| US7840245B2 (en) | 2004-12-02 | 2010-11-23 | Sumitomo Electric Industries, Ltd. | Superconductive cable |
| JP2006216507A (en) * | 2005-02-07 | 2006-08-17 | Sumitomo Electric Ind Ltd | Superconductive cable |
| JP4720976B2 (en) * | 2005-02-07 | 2011-07-13 | 住友電気工業株式会社 | Superconducting cable |
| WO2007122670A1 (en) * | 2006-04-12 | 2007-11-01 | Sumitomo Electric Industries, Ltd. | Superconducting cable |
| US7763806B2 (en) | 2006-04-12 | 2010-07-27 | Sumitomo Electric Industries, Ltd. | Superconducting cable |
| CN115331885A (en) * | 2022-07-15 | 2022-11-11 | 中国科学院合肥物质科学研究院 | High temperature superconducting cable |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3081097B2 (en) | 2000-08-28 |
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