JPH01149310A - Gas insulated conductor - Google Patents
Gas insulated conductorInfo
- Publication number
- JPH01149310A JPH01149310A JP62305706A JP30570687A JPH01149310A JP H01149310 A JPH01149310 A JP H01149310A JP 62305706 A JP62305706 A JP 62305706A JP 30570687 A JP30570687 A JP 30570687A JP H01149310 A JPH01149310 A JP H01149310A
- Authority
- JP
- Japan
- Prior art keywords
- conductor
- current
- superconducting
- liquid nitrogen
- high voltage
- 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
- 239000004020 conductor Substances 0.000 title claims abstract description 69
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims abstract description 32
- 239000007788 liquid Substances 0.000 claims abstract description 17
- 229910052757 nitrogen Inorganic materials 0.000 claims abstract description 16
- 239000007789 gas Substances 0.000 claims abstract description 15
- 239000000463 material Substances 0.000 claims abstract description 10
- 239000002184 metal Substances 0.000 claims abstract description 9
- 229910052751 metal Inorganic materials 0.000 claims abstract description 9
- 125000006850 spacer group Chemical group 0.000 claims abstract description 5
- 238000009835 boiling Methods 0.000 claims abstract description 4
- 239000002826 coolant Substances 0.000 claims description 3
- 230000002093 peripheral effect Effects 0.000 claims 1
- 230000006641 stabilisation Effects 0.000 abstract 1
- 238000011105 stabilization Methods 0.000 abstract 1
- 239000002887 superconductor Substances 0.000 description 4
- 238000009413 insulation Methods 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 239000003507 refrigerant Substances 0.000 description 2
- -1 NbTi Substances 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000007710 freezing Methods 0.000 description 1
- 230000008014 freezing Effects 0.000 description 1
- 239000001307 helium Substances 0.000 description 1
- 229910052734 helium Inorganic materials 0.000 description 1
- SWQJXJOGLNCZEY-UHFFFAOYSA-N helium atom Chemical compound [He] SWQJXJOGLNCZEY-UHFFFAOYSA-N 0.000 description 1
- 230000002250 progressing effect Effects 0.000 description 1
- 238000005057 refrigeration Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 229910052718 tin Inorganic materials 0.000 description 1
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
【発明の詳細な説明】
〔発明の目的〕
（産業上の利用分野）
本発明は、高電圧導体に酸化物超電導材料を用いた高電
圧大電流のガス絶縁導体に関する。DETAILED DESCRIPTION OF THE INVENTION [Object of the Invention] (Industrial Application Field) The present invention relates to a high-voltage, large-current gas-insulated conductor using an oxide superconducting material for the high-voltage conductor.
（従来の技術）
超電導体の電力機器への応用に関しては比較的古くから
検討されており、最近では、交流用超電導線の開発と相
俟って、変圧器など交流電気機器への応用研究も進んで
いる。しかし、実用化には様々な技術的問題点が存在す
る。(Conventional technology) The application of superconductors to power equipment has been studied for a relatively long time, and recently, along with the development of AC superconducting wires, research into the application of superconductors to AC electrical equipment such as transformers has also begun. It's progressing. However, there are various technical problems in putting it into practical use.
これは、従来のＮｂＴｉやＮｂ、 Ｓｎのような液体ヘ
リウムによる冷却を前提とした超電導材料を用いた機器
が極低温での冷凍という極限技術を必要とすることが、
経済性、信頼性の面で実用化の妨げとなっていたことが
大きな要因の一つである。This is because conventional devices using superconducting materials such as NbTi, Nb, and Sn, which are premised on cooling with liquid helium, require the extreme technology of freezing at extremely low temperatures.
One of the major factors was that economic efficiency and reliability were obstacles to practical application.
ところが、最近酸化物系高温超電導体開発が急速に進み
、ＹＢａ、Ｃｕ、０．−ｘなど液体窒素温度以上で電気
抵抗零、完全反磁性という超電導体としての特性を示す
物質の発見が各所で報告されている。However, recently, the development of oxide-based high-temperature superconductors has progressed rapidly, and YBa, Cu, 0. The discovery of substances such as -x, which exhibit the characteristics of superconductors such as zero electrical resistance and complete diamagnetism above the temperature of liquid nitrogen, has been reported in various places.
このような高温超電導材を利用した場合、液体窒素を冷
媒として使うことが出来るので、冷媒自身のコスト低減
は勿論、冷凍技術が格段に容易になり、経済性のみなら
ず、信頼性の高い機器が得られることになり、超電導発
電機のほか、超電導変圧器、超電導送電線等電力機器へ
の応用も急速に進むことが期待される。When such high-temperature superconducting materials are used, liquid nitrogen can be used as a refrigerant, which not only reduces the cost of the refrigerant itself, but also makes refrigeration technology much easier, making it not only economical but also highly reliable equipment. As a result, it is expected that in addition to superconducting generators, applications in power equipment such as superconducting transformers and superconducting power transmission lines will rapidly advance.
超電導変電所としては、超電導変圧器、超電導遮断器や
母線などから構成され、ケーブルあるいは送電線と接続
し、負荷にエネルギーを供給する方式が考えられる。こ
のような超電導機器は液体窒素で冷却される。A superconducting substation can be constructed of a superconducting transformer, a superconducting circuit breaker, a bus bar, etc., and connected to cables or transmission lines to supply energy to loads. Such superconducting equipment is cooled with liquid nitrogen.
（発明が解決しようとする問題点）
超電導機器は、液体窒素により冷却されて超電導状態を
保持し、常電導に移転しないようにしている。一方、超
電導母線などのように長尺な同心円筒構成の導体に対し
て、高電圧の最適絶縁構成を考えた場合、高電圧導体と
金属容器の直径の比がおのずから決定される。その場合
、冷却媒体である液体窒素で絶縁媒体をも兼ねる必然的
に金属容器の直径が大きくなり、且つそれに共ない酸化
物超電導材料の超電導導体の直径も大きくなる。(Problems to be Solved by the Invention) Superconducting equipment is cooled with liquid nitrogen to maintain a superconducting state and prevent it from shifting to normal conductivity. On the other hand, when considering the optimal high voltage insulation configuration for a long concentric cylindrical conductor such as a superconducting bus, the ratio of the diameters of the high voltage conductor and the metal container is naturally determined. In that case, the diameter of the metal container that uses liquid nitrogen as a cooling medium and also serves as an insulating medium inevitably increases, and the diameter of the superconducting conductor made of an oxide superconducting material also increases accordingly.
即ち、超電導導体の直径及び断面積は電流容量からでは
なく絶縁性能面から大きくなってしまう問題が生じる。That is, a problem arises in that the diameter and cross-sectional area of the superconducting conductor become large not from the viewpoint of current capacity but from the viewpoint of insulation performance.
本発明は、このような問題点を解決するために提案され
たもので、超電導状態を安定に保持するとともに耐電圧
性能の優れたガス絶縁導体を得ることを目的としている
。The present invention was proposed to solve these problems, and aims to provide a gas-insulated conductor that stably maintains a superconducting state and has excellent withstand voltage performance.
（問題点を解決するための手段）
本発明は、酸化物超電導材料の超電導導体の外周に常電
導導体を配置して一体で高電圧大電流導体を構成し、高
電圧大電流導体の内側には液体窒素を流通し超電導導体
を冷却し、高電圧大電流導体の外周空間には絶縁ガスを
封入し、常電導導体を絶縁している。(Means for Solving the Problems) The present invention includes a superconducting conductor made of an oxide superconducting material, and a normal conductor disposed on the outer periphery of the superconducting conductor to integrally constitute a high voltage large current conductor. The superconducting conductor is cooled by flowing liquid nitrogen, and an insulating gas is filled in the outer space of the high-voltage, large-current conductor to insulate the normal conductor.
（作 用）
本発明の超電導ガス絶縁導体においては、機器の定格電
流に適した直径超電導導体を液体窒素にて冷却し、安定
な超電導状況を推持し、機器の定格電流を通電するとと
もに、絶縁構成上最適な直径を有する常電導導体を絶縁
ガスにて所定の機器の耐電圧性能を向上させたものであ
る。(Function) In the superconducting gas insulated conductor of the present invention, a superconducting conductor with a diameter suitable for the rated current of the device is cooled with liquid nitrogen, a stable superconducting state is maintained, and the rated current of the device is passed. A normal conducting conductor with an optimal diameter for insulation structure is used with an insulating gas to improve the withstand voltage performance of a given device.
（実施例）
以下、本発明の一実施例を図面によって詳細に説明する
。(Example) Hereinafter, an example of the present invention will be described in detail with reference to the drawings.
図は超電導ガス絶縁導体の構成を示す図である。The figure shows the configuration of a superconducting gas insulated conductor.
図において、金属容器１内に高電圧大電流−？ユが挿通
されている。高電圧大電流導体−？−は液体窒素の沸点
以上の臨界温度をもつ酸化物超電導材料より成る超電導
導体２０と常電導導体２１から構成されそれぞれの導体
間にスペーサ２２が配置されている。In the figure, high voltage and large current -? Yu is inserted. High voltage, large current conductor -? - is composed of a superconducting conductor 20 made of an oxide superconducting material having a critical temperature higher than the boiling point of liquid nitrogen and a normal conductor 21, and a spacer 22 is arranged between each conductor.
そして、高電圧大電流導体又内には液体窒素３が流通し
、超電導導体２１を冷却している。また、金属容器１内
には絶縁ガス４が封入されている。Liquid nitrogen 3 flows inside the high voltage and large current conductor to cool the superconducting conductor 21. Further, an insulating gas 4 is sealed inside the metal container 1.
このように構成された本実施例のガス絶縁導体の高電圧
大電流導体−？−においては、機器の通電容量を超電導
導体２０が担い、機器の耐電圧性能を常 ４電漂導体２
１が担う。そのため超電導導体２０の直径及び断面積は
機器の定格通電容量に適合するだけの寸法でよい。また
、常電導導体２１は機器の耐電圧性能が最適になる導体
寸法でよいわけである。The high-voltage, large-current conductor of the gas-insulated conductor of this embodiment configured in this way -? -, the superconducting conductor 20 carries the current carrying capacity of the device, and the withstand voltage performance of the device is carried by the superconducting conductor 2.
1 is in charge. Therefore, the diameter and cross-sectional area of the superconducting conductor 20 may be of a size that is compatible with the rated current carrying capacity of the device. Further, the normal conductor 21 may have a conductor size that optimizes the withstand voltage performance of the device.
これらの超電導導体２０及び常電導導体２１の寸法差に
よる固定支持の調整はスペーサ２２で容易にできる。こ
の種の酸化物超電導材料を用いた超電導導体は、超電導
導体２０のみを高電圧大電流機器主として構成すると、
絶縁端゛成の面から超電導導体２０及び金属被覆１の寸
法が著しく大きくなる問題があるが、本実施例の超電導
ガス絶縁導体はこの欠点が解消される。Adjustment of fixed support due to the dimensional difference between the superconducting conductor 20 and the normal conductor 21 can be easily performed using the spacer 22. When a superconducting conductor using this type of oxide superconducting material is configured with only the superconducting conductor 20 as a high-voltage, large-current device,
Although there is a problem in that the dimensions of the superconducting conductor 20 and the metal coating 1 are significantly large due to the formation of the insulating end, the superconducting gas-insulated conductor of this embodiment eliminates this drawback.
以上の通り、本発明によれば、超電導導体と常電導導体
を別々に設置し、且つ冷却媒体である液体窒素と絶縁媒
体である絶縁ガスを分離して充てんしている。そのため
、高電圧大電流機器として、通電容量と耐電圧性能の両
面から安定したガス絶縁導体を提供することができる。As described above, according to the present invention, the superconducting conductor and the normal conducting conductor are installed separately, and liquid nitrogen as a cooling medium and insulating gas as an insulating medium are separately filled. Therefore, it is possible to provide a gas-insulated conductor that is stable in both current carrying capacity and withstand voltage performance as a high-voltage, large-current device.
第１図は本発明のガス絶縁導体の一実施例を示す断面図
である。
１ ・・・金属容器
−２−・・・高電圧大電流導体
３ ・・・液体窒素
４ ・・・絶縁ガス
２０・・・超電導導体
２１・・・常電導導体
２２・・・スペーサ
代理人 弁理士 則 近 憲 右
同 第子丸 健
第１図FIG. 1 is a sectional view showing one embodiment of the gas insulated conductor of the present invention. 1...Metal container-2-...High voltage/large current conductor 3...Liquid nitrogen 4...Insulating gas 20...Superconducting conductor 21...Normal conducting conductor 22...Spacer agent Patent attorney Shi Nori Ken Chika Ken Daishimaru Figure 1
Claims (3)
点以上の臨界温度をもつ酸化物超電導材料を用いた超電
導導体と、その外周に常電導導体を配置して成る高電圧
大電流導体を挿通したことを特徴とするガス絶縁導体。(1) A high-voltage, large-current conductor consisting of a superconducting conductor using an oxide superconducting material with a critical temperature higher than the boiling point of liquid nitrogen and a normal conductor arranged around its outer periphery in a metal container filled with an insulating gas. A gas insulated conductor characterized by being inserted through it.
体として流通し、高電圧大電流導体の外周空間に絶縁ガ
スを絶縁媒体として封入した特許請求の範囲第１項記載
のガス絶縁導体。(2) The gas-insulated conductor according to claim 1, wherein liquid nitrogen flows as a cooling medium in the inner space of the high-voltage, large-current conductor, and insulating gas is sealed as an insulating medium in the outer peripheral space of the high-voltage, large-current conductor. .
空間を設けた特許請求の範囲第１項記載のガス絶縁導体
。(3) Placing a spacer between the superconducting conductor and the normal conducting conductor,
A gas insulated conductor according to claim 1, which is provided with a space.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62305706A JPH01149310A (en) | 1987-12-04 | 1987-12-04 | Gas insulated conductor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62305706A JPH01149310A (en) | 1987-12-04 | 1987-12-04 | Gas insulated conductor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01149310A true JPH01149310A (en) | 1989-06-12 |
Family
ID=17948379
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62305706A Pending JPH01149310A (en) | 1987-12-04 | 1987-12-04 | Gas insulated conductor |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01149310A (en) |
-
1987
- 1987-12-04 JP JP62305706A patent/JPH01149310A/en active Pending
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