JPH0836924A - Superconducting ac strand - Google Patents
Superconducting ac strandInfo
- Publication number
- JPH0836924A JPH0836924A JP6170669A JP17066994A JPH0836924A JP H0836924 A JPH0836924 A JP H0836924A JP 6170669 A JP6170669 A JP 6170669A JP 17066994 A JP17066994 A JP 17066994A JP H0836924 A JPH0836924 A JP H0836924A
- Authority
- JP
- Japan
- Prior art keywords
- superconducting
- wire
- fiber
- core wire
- twisted
- 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.)
- Pending
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
Landscapes
- Superconductors And Manufacturing Methods Therefor (AREA)
Abstract
Description
【0001】[0001]
【産業上の利用分野】本発明は超電導限流器及び超電導
変圧器等の交流機器に使用する交流用超電導撚線に関す
る。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an AC superconducting stranded wire used in AC devices such as superconducting fault current limiters and superconducting transformers.
【0002】[0002]
【従来の技術】従来の交流用超電導撚線は特開平5−198
223 号公報に示されているように芯線にCu−Niまた
はステンレスを用い、芯線の周りにCu−Niをマトリ
ック材としたNb−Tiの超電導素線を複数本撚合せて
一次撚線を形成し、更に一次撚線を芯線の周りに複数本
撚合せて二次撚線を形成し、以下同様にして三次撚りの
交流用超電導撚線を形成している。芯線には比較的抵抗
値の高いCu−Niまたはステンレスを使用して渦電流
損失や超電導素線−芯線間の結合損失をできるだけ小さ
くしている。しかし、これらの損失による熱は超電導素
線に伝導して超電導撚線をクエンチさせる欠点がある。2. Description of the Related Art A conventional superconducting stranded wire for alternating current is disclosed in Japanese Patent Laid-Open No. 5-198.
As shown in Japanese Patent No. 223, the core wire is made of Cu-Ni or stainless steel, and a plurality of Nb-Ti superconducting wires made of Cu-Ni as a matrix material are twisted around the core wire to form a primary twisted wire. Then, a plurality of primary twisted wires are twisted around the core wire to form a secondary twisted wire, and a tertiary twisted alternating current superconducting twisted wire is formed in the same manner. Cu-Ni or stainless steel having a relatively high resistance value is used for the core wire to minimize the eddy current loss and the coupling loss between the superconducting element wire and the core wire. However, the heat generated by these losses has a drawback that it conducts to the superconducting element wire to quench the superconducting stranded wire.
【0003】また、実開昭62−55826 号公報に示されて
いるように超電導撚線の芯線としてCu−Ni合金線に
耐熱性絶縁被覆を施して用い、この芯線の周りに多心構
造の超電導素線を複数本撚合せて交流用超電導撚線を形
成している例がある。しかし、この例では芯線が絶縁さ
れているので超電導素線−芯線間の結合損失は発生しな
いが、芯線の電導性のCu−Ni合金線を用いているの
で芯線に交流による誘導電流が流れ、渦電流損失による
熱が発生して交流用超電導撚線をクエンチさせる欠点が
ある。Further, as disclosed in Japanese Utility Model Laid-Open No. 62-55826, a Cu-Ni alloy wire is used as a core wire of a superconducting stranded wire with a heat resistant insulating coating, and a multi-core structure is formed around the core wire. There is an example in which a plurality of superconducting element wires are twisted together to form an AC superconducting twisted wire. However, in this example, since the core wire is insulated, a superconducting element wire-coupling loss between core wires does not occur, but since an electrically conductive Cu-Ni alloy wire of the core wire is used, an induction current due to an alternating current flows through the core wire, There is a drawback in that heat is generated due to eddy current loss to quench the AC superconducting stranded wire.
【0004】また特開平5−198223 号公報及び実開昭62
−55826 号公報の交流用超電導撚線は渦電流損失を小さ
くするために出来るだけ細くしている。このため超電導
限流器及び超電導変圧器等の交流機器においては大電流
が流れるので発生する電磁力でコイル導体が変形し易
く、変形時の熱で超電線がクエンチを起こすことがあ
る。また、電力系統で三相短絡などが発生した場合は超
電導変圧器等では通常の二倍以上の電流が流れるので、
発生する電磁力で超電導線が破断することも考えられ
る。Further, Japanese Patent Laid-Open No. 5-198223 and Shokai Sho 62
The superconducting stranded wire for AC in −55826 is made as thin as possible to reduce eddy current loss. Therefore, in an AC device such as a superconducting fault current limiter and a superconducting transformer, a large current flows, so that the coil conductor is easily deformed by the electromagnetic force generated, and the super electric wire may be quenched by the heat at the time of deformation. Also, when a three-phase short circuit occurs in the power system, more than twice the normal current flows in superconducting transformers, etc.
It is also possible that the superconducting wire breaks due to the electromagnetic force generated.
【0005】[0005]
【発明が解決しようとする課題】本発明の目的は上記の
ような芯線で発生する交流損失による超電導線のクエン
チをなくすことと、交流機器の発生する電磁力で超電導
線が塑性変形を起こして超電導線がクエンチするのを起
こり難くすること、及び電力系統の短絡等で交流機器に
通常よりも極めて大きな電流が流れた場合、超電導コイ
ルの発生する電磁力で超電導線が破断するのを起こり難
くすることにある。The object of the present invention is to eliminate the quench of the superconducting wire due to the AC loss generated in the core wire as described above, and to cause the superconducting wire to be plastically deformed by the electromagnetic force generated by the AC equipment. To make it difficult for the superconducting wire to quench, and to prevent breakage of the superconducting wire due to the electromagnetic force generated by the superconducting coil when a much larger current than usual flows to AC equipment due to a short-circuit in the power system, etc. To do.
【0006】[0006]
【課題を解決するための手段】上記目的を達成するため
に、本発明では交流用超電導撚線の一次〜最終撚線まで
の芯線に高強力の電気絶縁性繊維及び半導電性繊維を用
いる。また、これらの繊維を用いた糸にエポキシ樹脂等
の合成樹脂を含浸してFRP芯線として用いる。In order to achieve the above object, in the present invention, high-strength electrically insulating fibers and semiconductive fibers are used for the core wires from the primary to the final twisted wire of a superconducting twisted wire for alternating current. Further, a thread using these fibers is impregnated with a synthetic resin such as an epoxy resin and used as an FRP core wire.
【0007】請求項1では高強力の電気絶縁性繊維及び
半導電性繊維を太い繊維では1本で用い、細い繊維では
複数本撚合せて用いる。In the first aspect, the high-strength electrically insulating fiber and the semi-conductive fiber are used as a single thick fiber, and a plurality of thin fibers are twisted together.
【0008】請求項2では高強力の電気絶縁性繊維とし
て高強力ポリエチレン繊維,アラミド繊維,ガラス繊維
及びアルミナ繊維を用い、高強力の半導電性繊維として
カーボン繊維を用い、これらの繊維を単独または組合せ
て用いる。In claim 2, high-strength polyethylene fibers, aramid fibers, glass fibers and alumina fibers are used as the high-strength electrically insulating fibers, and carbon fibers are used as the high-strength semiconductive fibers, and these fibers are used alone or Used in combination.
【0009】請求項3では請求項2の繊維を用いた糸に
エポキシ樹脂,ポリエステル樹脂及びポリウレタン樹脂
のうち一種類を含浸してFRP芯線として用いる。In a third aspect, the yarn using the fiber of the second aspect is impregnated with one of epoxy resin, polyester resin and polyurethane resin to be used as an FRP core wire.
【0010】請求項4では請求項1〜3の芯線を用いた
交流用超電導撚線を超電導限流器,超電導変圧器,超電
導発電機,加速器及びパルス発生装置の超電導コイル
に、核融合装置のセンタソレノイドコイル及びポロイダ
ルコイルに、交流用超電導電力ケーブルに使用する。According to a fourth aspect of the present invention, the superconducting twisted wire for alternating current using the core wire of the first to third aspects is used as a superconducting coil of a superconducting fault current limiter, a superconducting transformer, a superconducting generator, an accelerator and a pulse generator, and a fusion device. Used for center solenoid coil and poloidal coil, AC superconducting power cable.
【0011】[0011]
【作用】前記のように超電導交流機器等に使用する交流
用超電導撚線の芯線の高強力の電気絶縁性繊維を用いる
ことにより芯線には電流が全く流れず、半導電性繊維で
あるカーボン繊維を用いた場合でも電流はほとんど流れ
ず、渦電流損失及び超電導素線−芯線間の結合損失は発
生しない。このため本発明の交流用超電導撚線を使用し
た超電導限流器及び超電導変圧器等の交流機器は、通電
電流を従来の交流用超電導撚線を使用した場合よりも増
大できると共にクエンチを起こり難くすることができ
る。[Function] As described above, by using the high-strength electrically insulating fiber of the core wire of the superconducting twisted wire for AC used in the superconducting AC equipment, no current flows through the core wire, and the carbon fiber is a semi-conductive fiber. Even when using, the current hardly flows, and eddy current loss and superconducting wire-core wire coupling loss do not occur. Therefore, AC equipment such as a superconducting fault current limiter and a superconducting transformer using the AC superconducting twisted wire of the present invention, the energizing current can be increased more than when using the conventional AC superconducting twisted wire and quenching is less likely to occur. can do.
【0012】また、超電導コイルに通常の交流電流が流
れると径方向の外向きの交播電磁力が発生するので、超
電導線には引張り応力が加わるため超電導線は塑性変形
を起こし易い。このため従来の超電導撚線を使用した場
合は塑性変形を起こしてクエンチを起こし易いのに対
し、本発明の高強力芯線を用いた交流用超電導撚線は芯
線の引張り強度が従来の芯線の4〜5.5 倍と大きいの
で、従来の交流用超電導撚線に比べ引張り強度及び0.
2% 耐力とも約2倍と大きく、塑性変形が起こり難
い。Further, when a normal alternating current flows through the superconducting coil, a radial outward outward seeding electromagnetic force is generated, so that tensile stress is applied to the superconducting wire, so that the superconducting wire is prone to plastic deformation. For this reason, when the conventional superconducting stranded wire is used, plastic deformation is likely to occur to cause quenching, whereas in the AC superconducting stranded wire using the high-strength core wire of the present invention, the tensile strength of the core wire is 4 times that of the conventional core wire. Since it is as large as ~ 5.5 times, the tensile strength and
The 2% proof stress is about twice as large, and plastic deformation hardly occurs.
【0013】また、電力系統で三相短絡等が発生した場
合は交流機器には定格電流の2倍以上の電流が流れるの
で超電導線の破断も考えられるが、本発明の超電導撚線
は引張り強度が前記したように大きいので破断は起こり
難い。Further, when a three-phase short circuit or the like occurs in the power system, a current of more than twice the rated current flows in the AC device, so that the superconducting wire may be broken. However, the superconducting stranded wire of the present invention has tensile strength. Since it is large as described above, breakage is unlikely to occur.
【0014】請求項2では高強力の電気絶縁性繊維及び
半導電性繊維を単独または組合せて用いるとしている
が、高強力ポリエチレン繊維のように極低温における熱
収縮率が負特性を示す繊維は巻線時の張力を極低温にお
いて減じる作用をするので、正特性を示す外の繊維と組
合せて用いることによって熱収縮を正にすることができ
るとともに、引張り強度が平均化することによって使用
する繊維の選択幅が拡がる。According to the second aspect, the high-strength electrically insulating fibers and the semiconductive fibers are used alone or in combination. However, fibers such as high-strength polyethylene fibers exhibiting negative heat shrinkage at cryogenic temperatures are wound. Since it has the effect of reducing the tension during drawing at extremely low temperatures, it is possible to make the heat shrinkage positive by using it in combination with an external fiber that exhibits positive properties, and at the same time, by averaging the tensile strength, The selection range is expanded.
【0015】請求項3では請求項2の繊維を用いた糸に
エポキシ樹脂等の合成樹脂を含浸してFRP芯線を形成
することによって芯線の鋼性及び強度が大きくなり、超
電導撚線の塑性変形及び破断を起こり難くすることがで
きる。According to a third aspect of the present invention, the FRP core wire is formed by impregnating the yarn using the fiber of the second embodiment with a synthetic resin such as an epoxy resin, so that the steel wire and the strength of the core wire are increased, and the superconducting stranded wire is plastically deformed. Also, breakage can be made less likely to occur.
【0016】[0016]
【実施例】以下、本発明の実施例を図1,図2及び表
1,表2により説明する。Embodiments of the present invention will be described below with reference to FIGS. 1 and 2 and Tables 1 and 2.
【0017】図1は本発明の第一実施例で、芯線に高強
力ポリエチレン繊維を用いた二次撚線の交流用超電導撚
線の断面構成を示す。交流用超電導撚線を構成する超電
導素線1は素線径が0.25mmφ であり、常電導のマト
リックス材であるCu−Ni2の中に超電導材であるN
b−Ti3のフィラメントが多数本埋込まれている。超
電導素線1を0.25mmφ の一本の高強力ポリエチレン
繊維の芯線4の周りに6本撚合せて0.75mm外径の一
次撚線5を構成する。この一次撚線5を0.75mmφの
高強力ポリエチレン繊維である芯線4′の周りに一次撚
線5を6本撚合せて撚線外径2.25mm の二次撚線であ
る交流用超電導撚線6を構成する。FIG. 1 is a first embodiment of the present invention and shows a cross-sectional structure of a superconducting twisted wire for alternating current of a secondary twisted wire using a high-strength polyethylene fiber as a core wire. The superconducting wire 1 constituting the AC superconducting stranded wire has a wire diameter of 0.25 mmφ, and the superconducting material N is contained in the normal-conducting matrix material Cu-Ni2.
A large number of filaments of b-Ti3 are embedded. Six superconducting wires 1 are twisted around a core wire 4 of 0.25 mmφ high strength polyethylene fiber to form a primary stranded wire 5 having an outer diameter of 0.75 mm. This primary stranded wire 5 is a secondary stranded wire having an outer diameter of 2.25 mm by twisting six primary stranded wires 5 around a core wire 4'which is a 0.75 mmφ high-strength polyethylene fiber. Configure line 6.
【0018】素1は本発明の交流用超電導撚線と従来の
交流用超電導撚線の仕様を示す。Element 1 shows the specifications of the AC superconducting twisted wire of the present invention and the conventional AC superconducting twisted wire.
【0019】[0019]
【表1】 [Table 1]
【0020】本発明及び従来とも超電導素線は同じであ
り、一次撚線及び二次撚線の外径も同じである。二次撚
線の引張強度は従来の2倍である。The superconducting element wire is the same in the present invention and the prior art, and the outer diameters of the primary stranded wire and the secondary stranded wire are also the same. The tensile strength of the secondary stranded wire is twice that of the conventional one.
【0021】本発明の交流用超電導撚線と従来の交流用
超電導線を用いた超電導コイルを製作し、交流通電によ
るクエンチ電流を測定した。表2に交流用超電導コイル
の仕様とクエンチ電流を示した。A superconducting coil using the AC superconducting twisted wire of the present invention and the conventional AC superconducting wire was manufactured, and the quench current due to AC energization was measured. Table 2 shows the specifications of the superconducting coil for AC and the quench current.
【0022】[0022]
【表2】 [Table 2]
【0023】従来の交流用超電導撚線を用いた超電導コ
イルのクエンチ電流は負荷率30%の420Aであるの
に対し、本発明の交流用超電導撚線を用いた超電導コイ
ルのクエンチ電流は負荷率60%の850Aであった。
従来の交流用超電導撚線を使用した超電導コイルは撚線
に用いた芯線の渦電流損失及び超電導素線−芯線間の結
合損失の影響が考えられ、本発明の交流用超電導撚線を
用いた超電導コイルではその影響がなかったことが考え
られる。このため交流用超電導撚線の芯線に高強力の電
気絶縁性繊維として表3に示すアラミド繊維,ガラス繊
維及びアルミナ繊維を、高強力の半導電性繊維としてカ
ーボン繊維を用いても超電導性能は本発明の第一の実施
例と同様の効果が得られる。While the quench current of the conventional superconducting coil using the AC superconducting twisted wire is 420 A with a load factor of 30%, the quench current of the superconducting coil using the AC superconducting twisted wire of the present invention is the load factor. It was 850A of 60%.
A superconducting coil using a conventional AC superconducting twisted wire is considered to be affected by the eddy current loss of the core wire used for the twisted wire and the coupling loss between the superconducting element wire and the core wire, and thus the AC superconducting twisted wire of the present invention is used. It is considered that the superconducting coil had no effect. Therefore, even if the aramid fiber, the glass fiber and the alumina fiber shown in Table 3 are used as the core wire of the superconducting stranded wire for AC and the carbon fiber is used as the high strength semi-conductive fiber, the superconducting performance is The same effect as the first embodiment of the invention can be obtained.
【0024】[0024]
【表3】 [Table 3]
【0025】また、これらの繊維を単独または組合せて
用いても本発明の第一の実施例と同様の効果が得られ
る。本発明の第二の実施例を図2に示した。この実施例
は交流用超電導撚線の芯線として高強力ポリエチレン繊
維7にアラミド繊維8を組合せた糸を形成し、この糸に
エポキシ樹脂9を含浸したFRP芯線10を作成して用
いた。このようにした芯線を一次撚線及び二次撚線に用
いた本発明の交流用超電導撚線は剛性が大きくなると共
に極低温における熱収縮率が正特性になる効果がある。
この交流用超電導撚線を使用した本発明の第一の実施例
と同じ仕様の交流用超電導コイルは、本発明の第一の実
施例と同様の超電導性能が得られた。このようなことか
ら、請求項3に記載した高強力の電気絶縁性繊維及び半
導電性繊維を組合せ、これに請求項3に記した合成樹脂
のうち一種類含浸したFRP芯線を交流用超電導撚線の
芯線に用いても本発明の第一の実施例と同様の効果が得
られることは明らかである。The same effects as those of the first embodiment of the present invention can be obtained by using these fibers alone or in combination. The second embodiment of the present invention is shown in FIG. In this example, as a core wire of a superconducting twisted wire for alternating current, a thread in which a high-strength polyethylene fiber 7 and an aramid fiber 8 were combined was formed, and an FRP core wire 10 in which this thread was impregnated with an epoxy resin 9 was prepared and used. The alternating-current superconducting stranded wire of the present invention using the core wire as described above for the primary stranded wire and the secondary stranded wire has the effects of increasing rigidity and having a positive thermal contraction rate at cryogenic temperatures.
The superconducting coil for AC having the same specifications as the first embodiment of the present invention using the superconducting twisted wire for AC has the same superconducting performance as that of the first embodiment of the present invention. Therefore, the high-strength electrically insulating fiber and semiconductive fiber described in claim 3 are combined, and the FRP core wire impregnated with one kind of the synthetic resin described in claim 3 is superconducting twisted for AC. It is clear that the same effect as that of the first embodiment of the present invention can be obtained by using it as the core wire of the wire.
【0026】本発明の第一及び第二の実施例では小形の
超電導コイルで超電導性能を求めたが、本発明の交流用
超電導撚線を超電導限流器,超電導変圧器,超電導発電
機,加速器及びパルス発生装置の超電導コイル,交流用
超電導電力ケーブル,核融合用センタソレノイドコイル
及びポロイダルコイルに用いても本発明の実施例と同様
の効果が得られ、更に超電導コイルの発生する大電磁力
がコイル導体に加わっても導体は塑性変形を起こし難く
クエンチは起こり難い。また、電力系統で短絡が発生し
た場合に考えられる超電導コイルの導体の破断が起こり
難い。In the first and second embodiments of the present invention, the superconducting performance is sought with a small superconducting coil. The superconducting twisted wire for AC of the present invention is used as a superconducting fault current limiter, a superconducting transformer, a superconducting generator, an accelerator. Also, when used in a superconducting coil of a pulse generator, a superconducting power cable for alternating current, a center solenoid coil for fusion, and a poloidal coil, the same effect as that of the embodiment of the present invention can be obtained, and a large electromagnetic force generated by the superconducting coil can be obtained. Even if added to the conductor, the conductor does not easily undergo plastic deformation and quenching does not occur easily. Further, it is difficult for the conductor of the superconducting coil to break when a short circuit occurs in the power system.
【0027】[0027]
【発明の効果】本発明によれば、芯線に電流が流れな
く、従来の交流用超電導撚線の芯線に生じていた渦電流
損失及び超電導素線−芯線間の結合損失による熱の発生
がなく、この交流用超電導撚線を使用した超電導コイル
はクエンチ電流が大きくなる。また、剛性及び引張り強
度が大きくなり、この交流用超電導撚線を用いた超電導
コイルは導体の塑性変形が起こり難くクエンチを起こし
難い。さらに、交流機器が運転されている電力系統で短
絡等が発生して交流機器に定格電流以上の大電流が流れ
た場合でも、交流用超電導撚線が電磁力によって破断す
ることはない。According to the present invention, no current flows in the core wire, and heat is not generated due to the eddy current loss and the superconducting element wire-core wire coupling loss that have occurred in the core wire of the conventional AC superconducting stranded wire. The quench current becomes large in the superconducting coil using this AC superconducting stranded wire. Further, the rigidity and the tensile strength are increased, and in the superconducting coil using the superconducting twisted wire for alternating current, the plastic deformation of the conductor hardly occurs and the quenching hardly occurs. Further, even if a short circuit or the like occurs in the power system in which the AC device is operating and a large current exceeding the rated current flows in the AC device, the AC superconducting twisted wire is not broken by the electromagnetic force.
【図1】本発明の一実施例を示す交流用超電導撚線の断
面図。FIG. 1 is a cross-sectional view of an AC superconducting stranded wire showing an embodiment of the present invention.
【図2】本発明の交流用超電導撚線に用いる芯線の一実
施例を示す斜視図。FIG. 2 is a perspective view showing an embodiment of a core wire used in the AC superconducting stranded wire of the present invention.
1…超電導素線、2…マトリックス材Cu−Ni、3…
超電導材Nb−Ti、4,4′…高強力ポリエチレン繊
維の芯線、5…一次撚線、6…二次撚線。1 ... Superconducting element wire, 2 ... Matrix material Cu-Ni, 3 ...
Superconducting material Nb-Ti, 4, 4 '... High-strength polyethylene fiber core wire, 5 ... Primary twisted wire, 6 ... Secondary twisted wire.
Claims (4)
本埋込んだ超電導素線を芯線の周りに複数本撚合せて一
次撚線を形成し、前記一次撚線を前記芯線の周りに複数
本撚合せて二次撚線を形成し、以下同様にして三次〜n
次の撚線を形成した交流用超電導撚線において、前記芯
線に高強力の電気絶縁性繊維及び半導電性繊維を用いた
ことを特徴とする交流用超電導撚線。1. A primary stranded wire is formed by twisting a plurality of superconducting element wires, in which a large number of superconducting filaments are embedded in a normal conducting metal, around a core wire, and forming a plurality of primary stranded wires around the core wire. Twisted to form a secondary stranded wire, and in the same manner, the tertiary to n
A superconducting twisted wire for alternating current, characterized in that, in the superconducting twisted wire for alternating current formed with the following twisted wire, high-strength electrically insulating fiber and semiconductive fiber are used for the core wire.
の芯線に用いる電気絶縁性繊維として、高強力ポリエチ
レン繊維,アラミド繊維,ガラス繊維及びアルミナ繊維
を用い、半導電性繊維としてカーボン繊維を用い、これ
らの繊維を単独または組合せて用いる交流用超電導撚
線。2. The high-strength polyethylene fiber, aramid fiber, glass fiber and alumina fiber are used as the electrically insulating fibers used in the core wire of the superconducting twisted wire for alternating current according to claim 1, and carbon fiber is used as the semi-conductive fiber. A superconducting twisted wire for alternating current using these fibers alone or in combination.
電導撚線に用いる芯線として、前記電気絶縁性繊維及び
半導電性繊維を多数本単独または組合せて用いる糸を形
成し、前記糸にエポキシ樹脂,ポリエステル樹脂及びポ
リウレタン樹脂のうち一種類を含浸して成るFRP芯線
を用いる交流用超電導撚線。3. The yarn according to claim 1 or 2, wherein, as the core wire used for the AC superconducting stranded wire, a thread using a large number of the electrically insulating fibers and the semiconductive fibers alone or in combination is formed, and the epoxy is used as the thread. A superconducting twisted wire for alternating current using an FRP core wire impregnated with one kind of resin, polyester resin and polyurethane resin.
用超電導撚線を用いた超電導限流器,超電導変圧器,超
電導発電機,交流用超電導電力ケーブル,核融合装置セ
ンタソレノイドコイル及びポロイダルコイル,加速器用
超電導コイル及びパルス発生装置用超電導コイル。4. The superconducting fault current limiter, the superconducting transformer, the superconducting generator, the AC superconducting power cable, the fusion device center solenoid coil and the poloidal coil according to claim 1, 2, or 3. , Superconducting coils for accelerators and pulse generators.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP6170669A JPH0836924A (en) | 1994-07-22 | 1994-07-22 | Superconducting ac strand |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP6170669A JPH0836924A (en) | 1994-07-22 | 1994-07-22 | Superconducting ac strand |
Publications (1)
Publication Number | Publication Date |
---|---|
JPH0836924A true JPH0836924A (en) | 1996-02-06 |
Family
ID=15909186
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP6170669A Pending JPH0836924A (en) | 1994-07-22 | 1994-07-22 | Superconducting ac strand |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH0836924A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5164172A (en) * | 1989-06-29 | 1992-11-17 | Maruo Calcium Company Limited | Process for producing aragonite crystal form calcium carbonate with acicular shape |
-
1994
- 1994-07-22 JP JP6170669A patent/JPH0836924A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5164172A (en) * | 1989-06-29 | 1992-11-17 | Maruo Calcium Company Limited | Process for producing aragonite crystal form calcium carbonate with acicular shape |
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