JPS63279511A - Superconductive cable - Google Patents

Superconductive cable

Info

Publication number
JPS63279511A
JPS63279511A JP62113195A JP11319587A JPS63279511A JP S63279511 A JPS63279511 A JP S63279511A JP 62113195 A JP62113195 A JP 62113195A JP 11319587 A JP11319587 A JP 11319587A JP S63279511 A JPS63279511 A JP S63279511A
Authority
JP
Japan
Prior art keywords
superconducting
conductor
cable
segment
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.)
Granted
Application number
JP62113195A
Other languages
Japanese (ja)
Other versions
JP2523630B2 (en
Inventor
Masayuki Tan
丹 正之
Michio Takaoka
道雄 高岡
Tsuneaki Motai
恒明 馬渡
Ryuichi Okiayu
置鮎 隆一
Shotaro Yoshida
昭太郎 吉田
Shoichi Hasegawa
正一 長谷川
Hiroshi Yamanouchi
山之内 宏
Shigekazu Yokoyama
横山 繁嘉寿
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Fujikura Ltd
Original Assignee
Fujikura Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Fujikura Ltd filed Critical Fujikura Ltd
Priority to JP62113195A priority Critical patent/JP2523630B2/en
Publication of JPS63279511A publication Critical patent/JPS63279511A/en
Application granted granted Critical
Publication of JP2523630B2 publication Critical patent/JP2523630B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Classifications

    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E40/00Technologies for an efficient electrical power generation, transmission or distribution
    • Y02E40/60Superconducting electric elements or equipment; Power systems integrating superconducting elements or equipment

Landscapes

  • Superconductors And Manufacturing Methods Therefor (AREA)

Abstract

PURPOSE:To obtain a superconductive cable with high performance by using an oxide superconductor for a cable utilized for power transmission. CONSTITUTION:Two superconductive segment conductors 2, 2 with a fan-shaped circular cross section and two ordinary conductive segments 3, 3 with a fan- shaped circular cross section are combined in turn to form a superconductive cable 1 cylindrically as a whole. This superconductive segment conductor 2 is constituted by stranding, molding, and compressing many superconductive wires 4, and the superconductive wire 4 is constituted of a linear superconductor 5 and a film layer 6 made of copper and provided on its outer periphery. When a refrigerant such as liquid nitrogen is fed into a refrigerant passage 8 and the superconductor 5 of the superconductive segment conductor 2 is cooled to the critical temperature or less, a current is allowed to flow in the superconductor 5 with no loss.

Description

【発明の詳細な説明】 「産業上の利用分野」 本発明は電力の輸送等に使用される超電導ケーブルに係
わり、超電導体として酸化物系超電導材料を用いたもの
に関する。
DETAILED DESCRIPTION OF THE INVENTION "Field of Industrial Application" The present invention relates to a superconducting cable used for power transportation, etc., and relates to a cable using an oxide-based superconducting material as a superconductor.

「従来の技術およびその問題点」 近来、常電導状態から超電導状態へ遷移する臨界温度(
Tc)が液体窒素温度以上の高い値を示す酸化物系の超
電導材料が種々発見されつつある。
"Conventional technology and its problems" Recently, the critical temperature at which the normal conductive state transitions to the superconducting state (
Various oxide-based superconducting materials are being discovered that exhibit Tc) values higher than the liquid nitrogen temperature.

また、こうした酸化物系超電導体を用いて、例えば送電
線等の超電導線材、超電導マグネット、ジョセフソン素
子など多方面に応用するための研究もなされている。
Furthermore, research is being conducted to apply these oxide-based superconductors to a variety of fields, such as superconducting wires for power transmission lines, superconducting magnets, and Josephson elements.

この発明は、電力輸送などに利用されるケーブルに、酸
化物系超電導体を適用させた高性能な超電導ケーブルの
提供を目的としている。
The present invention aims to provide a high-performance superconducting cable in which an oxide-based superconductor is applied to a cable used for electric power transportation.

「問題点を解決するための手段」 この発明は、ケーブル導体を複数に分割して構成される
セグメント導体を集合して構成され、上記複数のセグメ
ント導体のうち、少なくとも1つが酸化物系超電導導体
から形成され、他のセグメント導体が常電導体から形成
されるとともに、超電導セグメント導体に少なくとも1
つの常電導セグメント導体を接触させて各セグメント導
体を集合し、超電導ケーブルを構成したものである。
"Means for Solving the Problems" The present invention is constructed by assembling segment conductors formed by dividing a cable conductor into a plurality of segments, and at least one of the plurality of segment conductors is an oxide-based superconducting conductor. and the other segment conductors are formed from normal conductors, and at least one superconducting segment conductor is formed from a superconducting segment conductor.
A superconducting cable is constructed by bringing two normally conducting segment conductors into contact and assembling each segment conductor.

「作用 」 この超電導ケーブルを、酸化物系超電導体の臨昇温度以
下に冷却することにより、超電導セグメント導体に損失
なく電流を流すことができる。また、この超電導セグメ
ント導体に接触して配置された常電導セグメント導体は
超電導セグメント導体の安定化オとして作用する。
"Operation" By cooling this superconducting cable to a temperature below the critical temperature of the oxide superconductor, current can be passed through the superconducting segment conductors without loss. Further, the normal conductive segment conductor placed in contact with the superconducting segment conductor acts as a stabilizing element for the superconducting segment conductor.

「実施例」 第1図はこの発明の一実施例を示す図であって、符号1
は超電導ケーブルである。この超電導ケーブルlは、断
面扇形環状体の2つの超電導セグメント導体2.2と、
断面R13環状体の2つの常電導セグメント導体3.3
とを交互に組み合わせ、全体として円筒状に形成された
ものである。この超電導セグメント導体2は、第2図に
示す超電導線4を多数本撚り合わせ成形圧縮して構成さ
れている。上記超電導線4は、線状の超電導導体5とそ
の外周に設けられた銅からなる被覆層6とから構成され
ている。超電導導体5の構成材料としては、A −B 
−Cu−0系(ただし、AはY、La、Ce。
"Embodiment" FIG. 1 is a diagram showing an embodiment of the present invention, with reference numeral 1
is a superconducting cable. This superconducting cable l has two superconducting segment conductors 2.2 having a sector-shaped annular body,
Two normally conducting segment conductors of cross section R13 annular body 3.3
and are combined alternately to form a cylindrical shape as a whole. This superconducting segment conductor 2 is constructed by twisting together, forming and compressing a large number of superconducting wires 4 shown in FIG. The superconducting wire 4 is composed of a linear superconducting conductor 5 and a coating layer 6 made of copper provided around the outer periphery of the superconducting conductor 5. The constituent materials of the superconducting conductor 5 are A-B.
-Cu-0 system (A is Y, La, Ce.

P  r、Nd、Pm、Eu、Gd、Tb、Sm、Dy
、Ho、Er、Tm。
P r, Nd, Pm, Eu, Gd, Tb, Sm, Dy
, Ho, Er, Tm.

Y b、 L u、 S c等のIIIa族金属元素を
示し、BはBa。
It represents a group IIIa metal element such as Yb, Lu, Sc, etc., and B is Ba.

S r、Mg、Ca、Ra、Be等のアルカリ土類金属
元素を示す)あるいは B aP bB io s、 
SrTiO3、BaTi0a、(S r、 B a)T
 io 3、(Ca、 S r)T io 3等のA 
−I3−0 、型などの酸化物系超電導材料が使用され
る。
represents an alkaline earth metal element such as S r, Mg, Ca, Ra, Be, etc.) or B aP bB io s,
SrTiO3, BaTi0a, (S r, Ba)T
io 3, (Ca, S r)T io 3, etc. A
-I3-0, type oxide superconducting materials are used.

上記常電導セグメント導体3は、多数本の銅線7を断面
が扇形環状体となるよ□うに撚り合わせ成形圧縮したも
のである。
The normal conductive segment conductor 3 is formed by twisting, molding, and compressing a large number of copper wires 7 so that the cross section becomes a fan-shaped annular body.

また、この超電導ケーブル1の中心には、軸線に沿って
冷媒流路8が形成されており、超電導セグメント導体2
内の超電導導体5・・・を臨界温度以下に冷却するため
の液体窒素などの冷媒を流せるようになっている。
In addition, a coolant channel 8 is formed in the center of the superconducting cable 1 along the axis, and the superconducting segment conductor 2
A coolant such as liquid nitrogen can be flowed to cool the superconducting conductors 5 inside to below a critical temperature.

この超電導ケーブルlは、冷媒流路8内4こ液体窒素な
どの冷媒を流し、超電導セグメント導体2.2の超電導
導体5・・・を臨界温度以下に冷却することによって、
この超電導導体5・・・に損失なく電流を流すことがで
きる。また万一、ケーブルの温度が上記臨界温度以上と
なり、超電導導体5・・・に電気抵抗が生じた場合には
、超電導導体5・・・外周の被覆層6・・・および超電
導セグメント導体2に接触している常電導セグメント導
体3に電流が流れ、超電導状態が破れたとき、の超電導
ケーブルの破損を防ぐ安定化材として作用する。
This superconducting cable 1 is constructed by flowing a refrigerant such as liquid nitrogen through the refrigerant channel 8 and cooling the superconducting conductors 5 of the superconducting segment conductors 2.2 to below a critical temperature.
Current can be passed through these superconducting conductors 5 without loss. In addition, in the event that the temperature of the cable exceeds the above-mentioned critical temperature and electrical resistance occurs in the superconducting conductor 5..., the superconducting conductor 5...the outer coating layer 6... and the superconducting segment conductor 2... When a current flows through the contacting normal conductive segment conductors 3 and the superconducting state is broken, the superconducting cable acts as a stabilizing material to prevent damage to the superconducting cable.

この超電導ケーブルlは次のように製造される。This superconducting cable 1 is manufactured as follows.

まず、銅のパイプ内に酸化物系超電導材料の粉末あるい
はその原料粉末を充填し、次いでこれを線材状に延伸加
工し、さらに熱処理を施して超電導線・1を作成する。
First, a copper pipe is filled with an oxide-based superconducting material powder or its raw material powder, which is then stretched into a wire and further heat-treated to create a superconducting wire 1.

次いで、多数本の超電導線4・・・を束ね、これらを撚
り合わせ、かつ断面が扇形環状体となるように加圧成形
を施して超電導セグメント導体2を作成する。一方、常
電導セグメント導体3は、多数本の銅線7・・・を束ね
、これらを撚り合わせ、かつ断面が扇形環状体となるよ
うに加圧成形を施して作成する。次に、2つの超電導セ
グメント導体2と2つ、の常電導セグメント導体3を交
互に組み合わせ、全体として円筒状に形成する。これら
各セグメント導体2.3を接合させるには、ろう付接合
や溶接などの接合手段により各セグメント導体2.3の
接触部分を接合する方法や、この円筒体の外周に銅、ア
ルミニウム、ステンレス等のスリーブを嵌着する一方、
円筒体中央の貫通孔にパイプを挿入することによって各
セグメント導体2.3を一定位置に固定する方法などに
より行なわれる。以上の操作により2つの超電導セグメ
ント導体2と2つの常電導セグメント導体3からなる超
電導ケーブルlが作成される。
Next, a superconducting segment conductor 2 is created by bundling a large number of superconducting wires 4, twisting them together, and applying pressure molding so that the cross section becomes a fan-shaped annular body. On the other hand, the normal conductive segment conductor 3 is made by bundling a large number of copper wires 7, twisting them together, and press-forming the wires so that the cross section becomes a fan-shaped annular body. Next, two superconducting segment conductors 2 and two normal conducting segment conductors 3 are alternately combined to form a cylindrical shape as a whole. In order to join these segment conductors 2.3, it is possible to join the contact portions of each segment conductor 2.3 by a joining method such as brazing or welding, or to attach copper, aluminum, stainless steel, etc. to the outer periphery of this cylindrical body. While fitting the sleeve of
This is carried out by, for example, fixing each segment conductor 2.3 at a fixed position by inserting a pipe into a through hole in the center of the cylinder. By the above operations, a superconducting cable 1 consisting of two superconducting segment conductors 2 and two normal conducting segment conductors 3 is created.

この超電導ケーブル1は、酸化物系超電導体を備えた2
つの超電導セグメント導体2と2つの常電導セグメント
導体3を交互に組み合わせて構成され、酸化物系超電導
体の臨界温度以下に超電導ケーブル1を冷却することに
より、超電導セグメント導体2.2に損失なく電力を流
すことができるので、ケーブルの大容量化および電力の
輸送ロスを減少させることができ、ケーブルの電力輸送
能力を大巾に向上させることができる。また、超電導セ
グメント導体2.2と常電導セグメント導体3.3を接
触させたので、超電導セグメント導体2.2の超電導状
態が破れたときに常電導セグメント導体3.3側に電流
を流すことができ、電気抵抗の増大による超電導セグメ
ント導体2.2の破壊を防ぐことができる。
This superconducting cable 1 includes 2 cables including an oxide superconductor.
It is constructed by alternately combining one superconducting segment conductor 2 and two normal conducting segment conductors 3, and by cooling the superconducting cable 1 below the critical temperature of the oxide-based superconductor, power is supplied to the superconducting segment conductor 2.2 without loss. can be passed through the cable, it is possible to increase the capacity of the cable and reduce power transport loss, and the power transport capacity of the cable can be greatly improved. Furthermore, since the superconducting segment conductor 2.2 and the normal conducting segment conductor 3.3 are brought into contact, it is possible to flow current to the normal conducting segment conductor 3.3 side when the superconducting state of the superconducting segment conductor 2.2 is broken. Therefore, destruction of the superconducting segment conductor 2.2 due to an increase in electrical resistance can be prevented.

また、この超電導ケーブルlは、軸線に沿って冷媒流路
8を設け、この中に液体窒素などの冷媒を流して超電導
セグメント導体2.2を冷却するように構成したので、
超電導セグメント導体2.2の冷却手段を簡略化でき、
冷却効率を向上さけることができる。
In addition, this superconducting cable l is configured to have a coolant flow path 8 along the axis, in which a coolant such as liquid nitrogen flows to cool the superconducting segment conductors 2.2.
The cooling means for the superconducting segment conductor 2.2 can be simplified,
Cooling efficiency can be improved.

また、超電導導体5としてY −B a−Cu−0系な
どのA −B −Cu−0系超電導材料を用いる場合、
このA −B −Cu−0系の超電導体は極めて高い臨
界温度(90〜95K)を示し、比較的安価で取り扱い
易い液体窒素を用いた冷却条件で超電導状態とすること
ができるので、冷却設備を簡略化できる。
Moreover, when using A-B-Cu-0-based superconducting material such as Y-B a-Cu-0-based as the superconducting conductor 5,
This A-B-Cu-0-based superconductor exhibits an extremely high critical temperature (90 to 95 K) and can be made into a superconducting state under cooling conditions using liquid nitrogen, which is relatively inexpensive and easy to handle. can be simplified.

また、この超電導ケーブルlは、同一の断面形状の超電
導セグメント導体2.2と常電導セグメント導体3.3
を組み合わせた構成なので、複数の常電導セグメント導
体を接合して作成される既存の分割ケーブルの製造設備
を適用することができ、容易に製造できる。
In addition, this superconducting cable l has a superconducting segment conductor 2.2 and a normal conducting segment conductor 3.3 having the same cross-sectional shape.
Since the structure is a combination of the above, existing split cable manufacturing equipment that is created by joining a plurality of normal conductive segment conductors can be applied, and manufacturing is easy.

第3図はこの発明の他の実施例を示す図である。FIG. 3 is a diagram showing another embodiment of the invention.

この図において第1図および第2図に示す構成要素と同
一の要素には同一符号を付しその説明を省略する。第1
図に示す超電導ケーブルlは、多数本の超電導線4・・
・を束ね、断面が扁形環状体となるように撚り合わせ成
形圧縮した超電導セグメント導体2を用いた構成であっ
たが、この例の超電導ケーブル9は、断面が扇形環状体
に形成された1つの超電導導体5の外面に銅製の被覆層
6を設けた超電導セグメント導体2aを用いた構成にな
っている。また、この例の超電導ケーブル9は、断面が
扇形環状体の銅の一体物からなる常電導セグメント導体
3aを用いて構成されている。
In this figure, the same elements as those shown in FIGS. 1 and 2 are given the same reference numerals, and their explanations will be omitted. 1st
The superconducting cable l shown in the figure consists of a large number of superconducting wires 4...
The superconducting cable 9 of this example uses a single superconducting segment conductor 2 whose cross section is formed into a fan-shaped annular body. The structure uses a superconducting segment conductor 2a in which a copper covering layer 6 is provided on the outer surface of a superconducting conductor 5. Further, the superconducting cable 9 of this example is constructed using a normal-conducting segment conductor 3a made of a single piece of copper and having a fan-shaped annular cross section.

この超電導ケーブル9は、先の実施例による超電導ケー
ブル1と同様に、冷媒流路8内に液体窒素などの冷媒を
流して冷却することによって超電導導体5に損失なく電
力を流すことができ、また超電導セグメント導体2a、
2aの被覆層6.6および常電導セグメント導体3a、
3aは超電導導体°5の安定化材として作用する。
Similar to the superconducting cable 1 according to the previous embodiment, this superconducting cable 9 allows power to flow through the superconducting conductor 5 without loss by cooling it by flowing a refrigerant such as liquid nitrogen into the refrigerant channel 8, and also superconducting segment conductor 2a,
2a covering layer 6.6 and normal conducting segment conductor 3a,
3a acts as a stabilizer for the superconducting conductor °5.

この超電導ケーブル9は、先の実施例による超電導ケー
ブルlと同様の効果が得られる他、1つの超電導導体5
に被覆層6を設けた超電導セグメント導体2aおよび銅
の一体物からなる常電導セグメント導体3aを用いて構
成したので、超電導セグメント導体2aおよび常電導セ
グメント導体3aの製造工程を簡略化できる。
This superconducting cable 9 has the same effect as the superconducting cable l according to the previous embodiment, and also has one superconducting conductor 5.
Since the superconducting segment conductor 2a provided with the coating layer 6 and the normal conducting segment conductor 3a made of an integral piece of copper are used, the manufacturing process of the superconducting segment conductor 2a and the normal conducting segment conductor 3a can be simplified.

なお、上述の各実施例とも被覆層6および常電導セグメ
ント導体3の材料として銅を用いたが、これに限定され
ず、アルミニウムや銅合金などの良導電体を用いても良
い。
In addition, although copper was used as the material for the coating layer 6 and the normal conductive segment conductor 3 in each of the above-mentioned examples, the material is not limited thereto, and a good conductor such as aluminum or a copper alloy may be used.

また、各実施例とも、2つの超電導セグメント導体2と
2つの常電導セグメント導体3とを用い、これらを組み
合わせて円筒状に形成する構成であったが、各々のセグ
メント導体の数は2つに限定されることなく3つ以上で
も良い。また、超電導ケーブルの形状は、円筒状に限定
されることなく他の形状でも良い。
Furthermore, in each example, two superconducting segment conductors 2 and two normal conducting segment conductors 3 were used, and these were combined to form a cylindrical shape, but the number of each segment conductor was reduced to two. Three or more may be used without limitation. Furthermore, the shape of the superconducting cable is not limited to a cylindrical shape, and may be of other shapes.

「発明の効果」 以上説明したように、この発明の超電導ケーブルは、酸
化物系超電導体からなる少なくとも1つの超電導セグメ
ント導体と常電導体からなる少なくとも1つの常電導セ
グメント導体を具備し、超電導セグメント導体と常電導
セグメント導体を接触させて構成し、超電導セグメント
導体を酸化物系超電導体の臨界温度以下に冷却すること
によって超電導セグメント導体に損失なく電流を流すこ
とができるので、ケーブルの大容量化および電力の輸送
ロスを減少させることができ、電力輸送能力を大巾に向
上させることができる。また超電導セグメント導体と常
電導セグメント導体を接触させたので、超電導セグメン
ト導体の超電導状態が破れたときに、常電導セグメント
導体側に電流を流すことができ、電気抵抗の増加による
超電導セグメント導体の破壊を防ぐことができる。
"Effects of the Invention" As explained above, the superconducting cable of the present invention includes at least one superconducting segment conductor made of an oxide-based superconductor and at least one normal conducting segment conductor made of a normal conductor, and the superconducting segment By constructing a conductor and a normal conductor segment conductor in contact and cooling the superconducting segment conductor below the critical temperature of the oxide superconductor, current can be passed through the superconducting segment conductor without loss, increasing the capacity of the cable. In addition, power transport loss can be reduced, and power transport capacity can be greatly improved. In addition, since the superconducting segment conductor and the normal conducting segment conductor are brought into contact, when the superconducting state of the superconducting segment conductor is broken, current can flow to the normal conducting segment conductor side, and the superconducting segment conductor is destroyed due to an increase in electrical resistance. can be prevented.

また、この発明による超電導ケーブルは、超電導セグメ
ント導体と常電導セグメント導体とを組み合わせた構成
なので、複数の常電導セグメント導体を接合して作成さ
れる既存の分割ケーブルの製造設備を適用することが可
能であり、容易に製造できる。
Furthermore, since the superconducting cable according to the present invention has a configuration in which a superconducting segment conductor and a normal conducting segment conductor are combined, it is possible to apply existing split cable production equipment that is created by joining a plurality of normal conducting segment conductors. and can be easily manufactured.

【図面の簡単な説明】[Brief explanation of drawings]

第1図はこの発明の一実施例を示す超電導ケーブルの横
断面図、第2図は第1図の超電導線に使用される超電導
線の拡大斜視図、第3図はこの発明の他の実施例を示す
超電導ケーブルの横断面図である。 ■、9・・・超電導ケーブル、2.2a・・・超電導セ
グメント導体、3・・・常電導セグメント導体。
FIG. 1 is a cross-sectional view of a superconducting cable showing one embodiment of the present invention, FIG. 2 is an enlarged perspective view of a superconducting wire used in the superconducting wire of FIG. 1, and FIG. 3 is another embodiment of the present invention. FIG. 2 is a cross-sectional view of an exemplary superconducting cable. ■, 9... Superconducting cable, 2.2a... Superconducting segment conductor, 3... Normal conducting segment conductor.

Claims (1)

【特許請求の範囲】[Claims] ケーブル導体を複数に分割して構成されるセグメント導
体を集合して構成され、上記複数のセグメント導体のう
ち、少なくとも1つが酸化物系超電導導体から形成され
、他のセグメント導体が常電導体から形成されるととも
に、超電導セグメント導体に少なくとも1つの常電導セ
グメント導体を接触させて各セグメント導体を集合して
構成されたことを特徴とする超電導ケーブル。
Consisting of a collection of segment conductors formed by dividing a cable conductor into a plurality of segments, at least one of the plurality of segment conductors is formed from an oxide-based superconducting conductor, and the other segment conductors are formed from a normal conductor. 1. A superconducting cable characterized in that the superconducting segment conductor is in contact with at least one normal-conducting segment conductor, and each segment conductor is assembled.
JP62113195A 1987-05-09 1987-05-09 Superconducting cable Expired - Fee Related JP2523630B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62113195A JP2523630B2 (en) 1987-05-09 1987-05-09 Superconducting cable

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62113195A JP2523630B2 (en) 1987-05-09 1987-05-09 Superconducting cable

Publications (2)

Publication Number Publication Date
JPS63279511A true JPS63279511A (en) 1988-11-16
JP2523630B2 JP2523630B2 (en) 1996-08-14

Family

ID=14605959

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62113195A Expired - Fee Related JP2523630B2 (en) 1987-05-09 1987-05-09 Superconducting cable

Country Status (1)

Country Link
JP (1) JP2523630B2 (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60198009A (en) * 1984-03-22 1985-10-07 古河電気工業株式会社 Compound superconductive conductor

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60198009A (en) * 1984-03-22 1985-10-07 古河電気工業株式会社 Compound superconductive conductor

Also Published As

Publication number Publication date
JP2523630B2 (en) 1996-08-14

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