JP2721266B2 - Superconducting cable connection - Google Patents
Superconducting cable connectionInfo
- Publication number
- JP2721266B2 JP2721266B2 JP2216436A JP21643690A JP2721266B2 JP 2721266 B2 JP2721266 B2 JP 2721266B2 JP 2216436 A JP2216436 A JP 2216436A JP 21643690 A JP21643690 A JP 21643690A JP 2721266 B2 JP2721266 B2 JP 2721266B2
- Authority
- JP
- Japan
- Prior art keywords
- superconducting
- layer
- conductive metal
- pipe
- superconducting tape
- 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.)
- Expired - Lifetime
Links
Classifications
-
- 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
Description
【発明の詳細な説明】 （産業上の利用分野） 本発明は、長距離の電力用超電導送電線路に設置して
用いる超電導ケーブル同士の好適な接続部に関する。Description: TECHNICAL FIELD The present invention relates to a suitable connecting portion between superconducting cables which are used by being installed in a long-distance superconducting power transmission line.
（従来の技術） 従来の超電導ケーブル同士の接続部の構造を第２図に
示す。(Prior Art) FIG. 2 shows a structure of a conventional connecting portion between superconducting cables.
第２図に示す超電導ケーブルの接続部51においては、
二つの超電導ケーブル52と超電導ケーブル53の端部が一
定間隔をあけて突き合わされ、その周囲を常電導体パイ
プ54で被覆している。この常電導体パイプ54は、作業性
を考慮して、軸方向に二つ割り又はそれ以上に分割され
たものである。In the connection portion 51 of the superconducting cable shown in FIG.
The ends of the two superconducting cables 52 and the superconducting cable 53 are abutted at regular intervals, and the periphery thereof is covered with a normal conductor pipe. The normal conductor pipe 54 is divided into two or more in the axial direction in consideration of workability.
ここで超電導ケーブル52及び53は、いずれも銅パイプ
（又は銅スパイラルパイプ）61上に、導電性金属層62、
超電導体層63及び導電性金属層64の積層構造からなる超
電導テープを複数回螺旋状に巻回した構造のものであ
る。Here, the superconducting cables 52 and 53 are each formed on a copper pipe (or copper spiral pipe) 61 by a conductive metal layer 62,
It has a structure in which a superconducting tape having a laminated structure of a superconductor layer 63 and a conductive metal layer 64 is spirally wound a plurality of times.
このような従来の超電導ケーブルの接続部は、通電導
体を構成する超電導体同士を直接接続する方法に比べ
て、簡便であるという長所がある。The connection portion of such a conventional superconducting cable has an advantage that it is simpler than a method of directly connecting superconductors constituting a current-carrying conductor.
（発明が解決しようとする課題） 上記の従来の超電導ケーブルの接続部には、次の問題
点がある。即ち、接続部においては通電電流が全て常電
導体パイプを流れるために、その部分での発熱量が大き
くなるという問題である。(Problem to be Solved by the Invention) The connection portion of the conventional superconducting cable has the following problems. That is, since all of the current flows through the normal conductor pipe at the connection portion, there is a problem that the heat generation at that portion increases.
このように常電導体パイプにおける発熱量が大きくな
り過ぎると、通電導体の温度が過度に上昇する。そのた
めに接続部の超電導体が超電導状態を維持できず、常電
導状態に転移してしまう。その結果、通電停止という重
大事態にまで至る危険性が増大する。If the amount of heat generated in the normal conductor pipe becomes excessively large, the temperature of the current-carrying conductor excessively increases. For this reason, the superconductor at the connection portion cannot maintain the superconducting state, and transitions to the normal conducting state. As a result, the danger of reaching a serious situation of stopping power supply increases.
この常電導体パイプにおける発熱を除去し、過度の温
度上昇を防止するために大量の冷媒を流すことも考えら
れる。しかし、超電導通電導体が超電導状態を維持でき
る極低温状態に保持し続けるためには、膨大な電力を消
費してしまうことになり実用的ではない。It is also conceivable to flow a large amount of refrigerant in order to remove heat generated in the normal conductor pipe and prevent an excessive rise in temperature. However, in order to keep the superconducting conductive conductor in a cryogenic state in which the superconducting state can be maintained, an enormous amount of power is consumed, which is not practical.
そこで、発熱量を減少させるために、常電導体パイプ
の抵抗を低減させる方法がいくつか採用されている。Therefore, in order to reduce the heat generation, several methods for reducing the resistance of the normal conductor pipe have been adopted.
その方法の一つとして、常電導体パイプ用の材料とし
てより高純度の銅やアルミニウムを用い、体積抵抗率を
低下させることが試みられている。しかし、これらの材
料の体積抵抗率の低下には限界があり、また、これらの
高純度の銅等の材料は非常に高価である。更に、他の方
法として、常電導体パイプの断面積を大きくして体積抵
抗率を減少させる方法がある。しかしこの方法の場合に
は、超電導ケーブル接続部の通電導体の径が超電導ケー
ブルの通電導体の径よりも大幅に大きくなり、かつ常電
導体パイプが電気的な突起部分となる。このために接続
部の電気絶縁層を厚くし、超電導ケーブル接続部に加わ
る電界を緩和する必要がある。その結果、超電導ケーブ
ル接続部のサイズが大きくなってしまう。As one of the methods, attempts have been made to lower the volume resistivity by using higher-purity copper or aluminum as a material for a normal conductor pipe. However, there is a limit to the reduction in volume resistivity of these materials, and these high-purity materials such as copper are very expensive. Furthermore, as another method, there is a method of increasing the cross-sectional area of the normal conductor pipe to reduce the volume resistivity. However, in the case of this method, the diameter of the current-carrying conductor of the superconducting cable connection portion is significantly larger than the diameter of the current-carrying conductor of the superconducting cable, and the normal conductor pipe becomes an electrically projecting portion. For this purpose, it is necessary to increase the thickness of the electrical insulating layer at the connection portion and reduce the electric field applied to the superconducting cable connection portion. As a result, the size of the superconducting cable connection part increases.
このように常電導体パイプの抵抗を低下させる方法に
よっても、通電時における発熱量増大という問題の十分
な解決には至っていないのが現状である。At present, even the method of reducing the resistance of the normal conductor pipe has not yet sufficiently solved the problem of an increase in the amount of heat generated during energization.
本発明は上記問題点を解決するためになされたもの
で、通電時における発熱量が少なく、しかも安価な超電
導ケーブルの接続部の構造を提供することを目的とす
る。SUMMARY OF THE INVENTION The present invention has been made to solve the above problems, and has as its object to provide an inexpensive superconducting cable connection structure that generates less heat when energized.
（課題を解決するための手段） 上記目的を達成するために本発明の超電導ケーブル接
続部は、金属パイプ上に二つの導電性金属層に超電導体
層が挟み込まれた構造の超電導テープが複数回螺旋状に
巻回されてなる超電導テープ層を有する超電導ケーブル
同士の接続部において、前記金属パイプの端面よりも長
手方向に超電導テープ層を突出させてその端面同士を接
合させ、前記突出させた超電導テープ層の内側の導電性
金属層と、パイプ上に二つの導電性金属層に超電導体層
が挟み込まれた構造の超電導テープが固着されてなる超
電導テープ層を有する接合部材の外側の導電性金属層と
が接合され、かつ前記接合部材の両端面と前記金属パイ
プの端面同士とが接合されている構成にする。(Means for Solving the Problems) In order to achieve the above object, a superconducting cable connecting portion of the present invention comprises a superconducting tape having a structure in which a superconducting layer is sandwiched between two conductive metal layers on a metal pipe a plurality of times. At the connecting portion of the superconducting cables having the superconducting tape layer wound spirally, the superconducting tape layer is protruded in the longitudinal direction from the end face of the metal pipe to join the end faces thereof, and the protruded superconducting tape A conductive metal layer outside of a joining member having a conductive metal layer inside a tape layer and a superconducting tape layer in which a superconducting tape having a structure in which a superconducting layer is sandwiched between two conductive metal layers on a pipe is fixed. The metal layers are joined to each other, and both end faces of the joining member are joined to end faces of the metal pipe.
（作用） 本発明の超電導ケーブル接続部において、通電電流
は、一方の超電導ケーブルの超電導体層を通り接合部材
の超電導体層を経由し、他方の超電導ケーブルの超電導
体層に流れ込む。(Operation) In the superconducting cable connection portion of the present invention, the current flows through the superconducting layer of one superconducting cable, passes through the superconducting layer of the joining member, and flows into the superconducting layer of the other superconducting cable.
これらの各超電導層の抵抗は０か又は極めて小さい。
また、この通電時においては、超電導体層に接する導電
性金属層などの常電導物質層中をも電流が通るが、これ
らの常電導物質層は非常に薄いために、その抵抗は殆ど
問題とならない。The resistance of each of these superconducting layers is zero or extremely small.
In addition, during this energization, current also passes through a normal conductive material layer such as a conductive metal layer in contact with the superconductor layer, but since these normal conductive material layers are very thin, the resistance is almost a problem. No.
（実施例） 以下、図面に基づいて本発明の一実施例を説明する。Hereinafter, an embodiment of the present invention will be described with reference to the drawings.
第１図に示す超電導ケーブル接続部１においては、超
電導ケーブル２と超電導ケーブル３とが、それぞれの銅
などの金属パイプ（又は金属スパイラルパイプ。以下、
同様である）11の端面と金属パイプ21の端面よりも長手
方向に突出させた超電導テープ層12の端面と超電導テー
プ層22の端面同士が銀ろう付けなどの手段により接合さ
れている（図中の７の部分）。そして、前記接合部及び
その近傍の内周面を形成する突出させた超電導テープ層
12の内側の導電性金属層13及び超電導テープ層22の内側
の導電性金属層23と、接合部材４の外側の導電性金属層
34とが半田付けなどの手段により接合されている（即
ち、この接合面には図示していない半田付け層が形成さ
れている）。更に、接合部材４の両端面と金属パイプ11
及び金属パイプ21の端面とが銀ろう付けなどの手段によ
り接合されている（図中の８及び９の部分）。In the superconducting cable connection section 1 shown in FIG. 1, the superconducting cable 2 and the superconducting cable 3 are each made of a metal pipe (or a metal spiral pipe, such as copper;
The end surface of the superconducting tape layer 12 and the end surface of the superconducting tape layer 22 projecting in the longitudinal direction from the end surface of the metal pipe 21 and the end surface of the superconducting tape layer 22 are joined together by means such as silver brazing (in the figure). 7 part). And a protruding superconducting tape layer forming the joint and the inner peripheral surface in the vicinity thereof
The conductive metal layer 13 inside the conductive metal layer 13 and the conductive metal layer 23 inside the superconducting tape layer 22 and the conductive metal layer outside the joining member 4.
34 are joined by means such as soldering (that is, a soldering layer (not shown) is formed on this joint surface). Furthermore, both end surfaces of the joining member 4 and the metal pipe 11
And the end face of the metal pipe 21 is joined by means such as silver brazing (parts 8 and 9 in the figure).
なお、接合部７における超電導テープ層12と超電導テ
ープ層22との接合の場合には、接合部材４が、超電導テ
ープ層12と超電導テープ層22とに均等の長さ（又は面
積）で接するように接合することが好ましい。In the case of joining the superconducting tape layer 12 and the superconducting tape layer 22 at the joint 7, the joining member 4 is in contact with the superconducting tape layer 12 and the superconducting tape layer 22 with an equal length (or area). It is preferable to join them.
本発明において超電導ケーブル２は、金属パイプ11上
に、超電導テープを複数回螺旋状に巻回し、半田付けな
どの手段により固定して超電導テープ層12を形成してな
るものである。この超電導テープ層12を形成する超電導
テープは、導電性金属層13と導電性金属層14との間に超
電導体層15が挟み込まれた構造のものである。超電導ケ
ーブル３の構造も同様であり、図中23と24はいずれも導
電性金属層、25は超電導体層である。導電性金属層13等
の形成材料としては、銀、銅、アルミニウム、ステンレ
スなどを用いることができる。In the present invention, the superconducting cable 2 is formed by spirally winding a superconducting tape on a metal pipe 11 a plurality of times and fixing it by means such as soldering to form a superconducting tape layer 12. The superconducting tape forming the superconducting tape layer 12 has a structure in which a superconducting layer 15 is sandwiched between a conductive metal layer 13 and a conductive metal layer 14. The structure of the superconducting cable 3 is also the same. In the figure, 23 and 24 are both conductive metal layers, and 25 is a superconductor layer. Silver, copper, aluminum, stainless steel, or the like can be used as a material for forming the conductive metal layer 13 or the like.
接合部材４は、パイプ31上の少なくとも一部に、好ま
しくは全面に超電導テープ層32を有するものである。超
電導テープ層32は、導電性金属層33と導電性金属層34の
間に超電導体層35が挟み込まれた構造の超電導テープ
を、パイプ31の長手方向に沿わせるか又は周方向に螺旋
状に巻回し、銀ろう付けなどの手段により固着してなる
ものである。The joining member 4 has a superconducting tape layer 32 on at least a part, preferably on the entire surface, of the pipe 31. The superconducting tape layer 32 is a superconducting tape having a structure in which a superconducting layer 35 is sandwiched between a conductive metal layer 33 and a conductive metal layer 34, along the longitudinal direction of the pipe 31 or spirally in the circumferential direction. It is wound and fixed by means such as silver brazing.
接合部材４の導電性金属層34までの外径は、銅パイプ
11及び銅パイプ21の外径と同等かそれ以下の大きさであ
ることが好ましい。The outer diameter of the joining member 4 up to the conductive metal layer 34 is a copper pipe.
It is preferable that the size is equal to or less than the outer diameter of the copper pipe 11.
接合部材４の導電性金属層33及び34は上記と同様の材
料により形成することができる。また、パイプ31の材質
に特に制限されないが、接続部の耐久性を考慮すれば十
分な機械的強度を有するものが好ましい。更に、パイプ
31の内径及び外径は、耐久性や接続対象となる超電導ケ
ーブルを形成する金属パイプの大きさに応じて適宜設定
する。The conductive metal layers 33 and 34 of the joining member 4 can be formed of the same material as described above. The material of the pipe 31 is not particularly limited, but preferably has sufficient mechanical strength in consideration of the durability of the connection portion. Furthermore, pipe
The inner diameter and outer diameter of 31 are appropriately set according to the durability and the size of the metal pipe forming the superconducting cable to be connected.
次に、本発明の超電導ケーブルの接続部の作用を説明
する。Next, the operation of the connecting portion of the superconducting cable of the present invention will be described.
超伝導ケーブル２側から通電した場合には、通電電流
は超電導体層15を流れて行き、接合部において導電性金
属層13、半田付け層及び導電性金属層34を経由して接合
部材４の超電導体層35に流れ込む。そして、超電導体層
35に流れ込んだ電流は、導電性金属層34、半田付け層及
び導電性金属層23を経由して超電導ケーブル３の超電導
体層25に流れ込むことになる。この場合に、超電導体層
15と超電導体層25の接触面積は非常に小さいために、接
合部７を介して直接この経路で電流が流れることはない
（超電導テープ層12及び22の厚さは数百μｍ程度）。When an electric current is supplied from the superconducting cable 2 side, the electric current flows through the superconductor layer 15, and at the joint portion, the electric current flows through the conductive metal layer 13, the soldering layer, and the conductive metal layer 34. It flows into the superconductor layer 35. And the superconductor layer
The current flowing into 35 flows into superconducting layer 25 of superconducting cable 3 via conductive metal layer 34, soldering layer and conductive metal layer 23. In this case, the superconductor layer
Since the contact area between the superconductor layer 15 and the superconductor layer 25 is very small, no current flows through this path directly through the joint 7 (the thickness of the superconducting tape layers 12 and 22 is about several hundred μm).
本発明の超電導ケーブルの接続部１においては、常電
導である導電性金属層の厚さは非常に薄く、半田付け層
の厚さも数十μｍ程度と非常に薄い。このために導電性
金属層及び半田付け層部分の抵抗は非常に小さくなり、
発熱量も充分に小さくできる。In the connection portion 1 of the superconducting cable of the present invention, the thickness of the conductive metal layer which is normal conduction is very thin, and the thickness of the soldering layer is also very thin, about several tens of μm. For this reason, the resistance of the conductive metal layer and the soldering layer portion becomes very small,
The calorific value can be reduced sufficiently.
次に、本発明の超電導ケーブル接続部に、通電した場
合の計算上の発熱量を示した。発熱量W1（単位：ワッ
ト）は、通電電流の横切る常電導部分の抵抗をＲ（単
位：Ω）とし、次式（Ｉ）： W1＝Ｒ・I2 （Ｉ） から求めた。Next, calculated calorific values when current is supplied to the superconducting cable connection portion of the present invention are shown. The calorific value W1 (unit: watts) was determined from the following formula (I): W1 = R · I 2 (I), where R (unit: Ω) is the resistance of the normal conducting portion that crosses the flowing current.
また、ここでＲは次式（II）： から求めた。Also, R is the following formula (II): Asked from.
なお、計算に必要な物性等の数値として次のものを用
いた。超電導体層の電気抵抗は０と見做し、導電性金属
層は銀層とした。In addition, the following values were used as numerical values such as physical properties necessary for the calculation. The electric resistance of the superconductor layer was regarded as 0, and the conductive metal layer was a silver layer.
通電電流:I＝10kA、 銀の体積抵抗率：ρ＝２×10-9Ω・ｍ、 銀層の厚さ:t＝50μｍ、 超電導テープ層間の半田層の体積抵抗率： ρ＝２×10-8Ω・ｍ、 半田層の厚さ:t′＝10μｍ、 超電導テープ層32の長さ:L＝400mm、 接合部材４の外周の直径:d＝25mm、 上記式（Ｉ）及び式（II）に必要な数値を代入すると
発熱量W1は、1.27×10-3Wであった。Energizing current: I = 10 kA, Volume resistivity of silver: ρ = 2 × 10 −9 Ω · m, Thickness of silver layer: t = 50 μm, Volume resistivity of solder layer between superconducting tape layers: ρ = 2 × 10 −8 Ω · m, thickness of solder layer: t ′ = 10 μm, length of superconducting tape layer 32: L = 400 mm, diameter of outer periphery of joining member 4: d = 25 mm, the above formulas (I) and (II) By substituting the necessary numerical values for (1), the calorific value W1 was 1.27 × 10 −3 W.
更に、第２図に示す従来の接続部についても同様にし
て次式（III）から発熱量を求めた。なお、常電導体パ
イプはすべて銀製とした。Further, the calorific value of the conventional connection portion shown in FIG. 2 was similarly calculated from the following equation (III). The normal conductor pipes were all made of silver.
W2＝Ｒ′・I2 （III） ただし、Ｒ′は次式により求めた。 W2 = R '· I 2 ( III) provided that, R' was calculated by the following equation.
（なお、式中、Ｒ′は常電導体パイプ54の抵抗、Ｌ′は
常電導体パイプ54の長さ（cm）、tpは常電導体パイプ54
の肉厚（cm）である） 上記式（III）に数値を代入すると発熱量W2は、51Wで
あった。 (Where R 'is the resistance of the normal conductor pipe 54, L' is the length (cm) of the normal conductor pipe 54, and tp is the normal conductor pipe 54
By substituting the numerical values into the above equation (III), the calorific value W2 was 51 W.
即ち、発熱量W1とW2とを比較すると、W1の値はW2の値
の実に４万分の１であった。That is, when the calorific values W1 and W2 were compared, the value of W1 was actually 1 / 40,000 of the value of W2.
（発明の効果） 本発明の超電導ケーブル接続部は、金属パイプ上に二
つの導電性金属層に超電導体層が挟み込まれた構造の超
電導テープが複数回螺旋状に巻回されてなる超電導テー
プ層を有する超電導ケーブル同士の接続部において、前
記金属パイプの端面よりも長手方向に超電導テープ層を
突出させてその端面同士を接合させ、前記突出させた超
電導テープ層の内側の導電性金属層と、パイプ上に二つ
の導電性金属層に超電導体層が挟み込まれた構造の超電
導テープが固着されてなる超電導テープ層を有する接合
部材の外側の導電性金属層とが接合され、かつ前記接合
部材の両端面と前記金属パイプの端面同士とが接合され
ている構造のものである。(Effect of the Invention) The superconducting cable connection part of the present invention is a superconducting tape layer formed by spirally winding a superconducting tape having a structure in which a superconducting layer is sandwiched between two conductive metal layers on a metal pipe. In the connecting portion of the superconducting cables having, the superconducting tape layer is protruded in the longitudinal direction from the end face of the metal pipe, the end faces are joined together, and the conductive metal layer inside the protruded superconducting tape layer, An outer conductive metal layer of a joining member having a superconducting tape layer in which a superconducting tape having a structure in which a superconducting layer is sandwiched between two conductive metal layers on a pipe is joined to the outside, and the joining member is It has a structure in which both end faces are joined to end faces of the metal pipe.
本発明の超電導ケーブル接続部においては、接合部材
中の超電導体層を経由して一方の超電導ケーブルから他
方の超電導ケーブルに電流が流れる。この接合部材の超
電導体層の抵抗は０か又は極めて小さいために、発熱量
も極めて小さくなる。また、導電性金属層及び半田付け
層などは極めて薄く、その抵抗は問題とならない程小さ
い。このために超電導ケーブル接続部における温度上昇
をより低い温度に抑制することができ、安定した超電導
特性を発揮できる。In the superconducting cable connection portion of the present invention, current flows from one superconducting cable to the other superconducting cable via the superconducting layer in the joining member. Since the resistance of the superconductor layer of this joining member is zero or extremely small, the amount of generated heat is also extremely small. In addition, the conductive metal layer, the soldering layer, and the like are extremely thin, and their resistance is so small that no problem occurs. For this reason, the temperature rise in the superconducting cable connection portion can be suppressed to a lower temperature, and stable superconducting characteristics can be exhibited.
また、発熱量が極めて少ないために、熱除去用の冷媒
の使用量を減少させることができる。従って、超電導通
電電導体を極低温状態に保持し続けるために要する消費
電力が小さくて済む。Further, since the calorific value is extremely small, the amount of the refrigerant for heat removal can be reduced. Therefore, the power consumption required to keep the superconducting conductive conductor in the cryogenic state is small.
更に、高価な高純度金属を使用する必要がないため
に、コストを低下させることができる。Further, since it is not necessary to use expensive high-purity metal, the cost can be reduced.
また、断面積の大きな常電導体パイプを使用する必要
がないために、接続部のサイズを小さくすることができ
る。In addition, since it is not necessary to use a normal conductor pipe having a large cross-sectional area, the size of the connection portion can be reduced.
第１図は本発明の超電導ケーブル接続部の断面図、第２
図は従来技術の超電導ケーブル接続部の断面図である。 １……超電導ケーブル接続部、２……超電導ケーブル、
３……超電導ケーブル、４……接合部材、７……接合
部、８……接合部、９……接合部、11……金属パイプ、
12……超電導テープ層、13……導電性金属層、14……導
電性金属層、15……超電導体層、21……金属パイプ、22
……超電導テープ層、23……導電性金属層、24……導電
性金属層、25……超電導体層、31……パイプ、32……超
電導テープ層、33……導電性金属層、34……導電性金属
層、35……超電導体層。FIG. 1 is a sectional view of a superconducting cable connecting portion of the present invention, and FIG.
The figure is a sectional view of a conventional superconducting cable connection. 1 ... superconducting cable connection part 2 ... superconducting cable
3 ... superconducting cable, 4 ... joining member, 7 ... joining section, 8 ... joining section, 9 ... joining section, 11 ... metal pipe,
12 ... superconducting tape layer, 13 ... conductive metal layer, 14 ... conductive metal layer, 15 ... superconductor layer, 21 ... metal pipe, 22
... superconducting tape layer, 23 ... conductive metal layer, 24 ... conductive metal layer, 25 ... superconducting layer, 31 ... pipe, 32 ... superconducting tape layer, 33 ... conductive metal layer, 34 ... conductive metal layer, 35 ... superconductor layer.
───────────────────────────────────────────────────── フロントページの続き (72)発明者 原 築志 東京都調布市西つつじケ丘２丁目４番１ 号 東京電力株式会社技術研究所内 (72)発明者 岡庭 潔 東京都調布市西つつじケ丘２丁目４番１ 号 東京電力株式会社技術研究所内 (56)参考文献 特開 昭64−72474（ＪＰ，Ａ) 特開 昭62−268073（ＪＰ，Ａ) ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Tatsushi Hara 2-4-1, Nishi-Atsujigaoka, Chofu-shi, Tokyo Tokyo Electric Power Company R & D Laboratory (72) Inventor Kiyoshi Okane 2-4-1, Nishi-Atsujigaoka, Chofu-shi, Tokyo No. Tokyo Electric Power Company Technical Research Institute (56) Reference JP-A-64-72474 (JP, A) JP-A-62-268073 (JP, A)
Claims (1)
導体層が挟み込まれた構造の超電導テープが複数回螺旋
状に巻回されてなる超電導テープ層を有する超電導ケー
ブル同士の接続部において、前記金属パイプの端面より
も長手方向に超電導テープ層を突出させてその端面同士
を接合させ、前記突出させた超電導テープ層の内側の導
電性金属層と、パイプ上に二つの導電性金属層に超電導
体層が挟み込まれた構造の超電導テープが固着されてな
る超電導テープ層を有する接合部材の外側の導電性金属
層とが接合され、かつ前記接合部材の両端面と前記金属
パイプの端面同士とが接合されていることを特徴とする
超電導ケーブル接続部。1. A connecting portion between superconducting cables having a superconducting tape layer formed by spirally winding a superconducting tape having a structure in which a superconducting layer is sandwiched between two conductive metal layers on a metal pipe. A protruding superconducting tape layer in the longitudinal direction from the end face of the metal pipe, joining the end faces together, a conductive metal layer inside the protruded superconducting tape layer, and two conductive metal layers on the pipe. A conductive metal layer on the outside of a joining member having a superconducting tape layer in which a superconducting tape having a structure in which a superconducting layer is sandwiched is joined, and both end faces of the joining member and end faces of the metal pipe are joined to each other. And a superconducting cable connection portion, wherein
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2216436A JP2721266B2 (en) | 1990-08-16 | 1990-08-16 | Superconducting cable connection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2216436A JP2721266B2 (en) | 1990-08-16 | 1990-08-16 | Superconducting cable connection |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0498773A JPH0498773A (en) | 1992-03-31 |
| JP2721266B2 true JP2721266B2 (en) | 1998-03-04 |
Family
ID=16688522
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2216436A Expired - Lifetime JP2721266B2 (en) | 1990-08-16 | 1990-08-16 | Superconducting cable connection |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2721266B2 (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100496995B1 (en) | 2003-09-29 | 2005-06-23 | 엘에스전선 주식회사 | Jointing structure and jointing method for superconducting cable |
| US7071148B1 (en) * | 2005-04-08 | 2006-07-04 | Superpower, Inc. | Joined superconductive articles |
| JP4810268B2 (en) * | 2006-03-28 | 2011-11-09 | 株式会社東芝 | Superconducting wire connection method and superconducting wire |
| JP5416924B2 (en) * | 2008-06-18 | 2014-02-12 | 株式会社東芝 | Superconducting wire and method for manufacturing the same |
| JP5297271B2 (en) * | 2009-06-09 | 2013-09-25 | 住友電気工業株式会社 | Intermediate connection structure of superconducting cable |
| JP2012014883A (en) * | 2010-06-30 | 2012-01-19 | Railway Technical Research Institute | High-temperature superconductive wire rod and high-temperature superconductive coil using the same |
| US8716188B2 (en) | 2010-09-15 | 2014-05-06 | Superpower, Inc. | Structure to reduce electroplated stabilizer content |
-
1990
- 1990-08-16 JP JP2216436A patent/JP2721266B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0498773A (en) | 1992-03-31 |
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