JPH10112925A - Apparatus and method for cooling cryogenic cable - Google Patents
Apparatus and method for cooling cryogenic cableInfo
- Publication number
- JPH10112925A JPH10112925A JP28171296A JP28171296A JPH10112925A JP H10112925 A JPH10112925 A JP H10112925A JP 28171296 A JP28171296 A JP 28171296A JP 28171296 A JP28171296 A JP 28171296A JP H10112925 A JPH10112925 A JP H10112925A
- Authority
- JP
- Japan
- Prior art keywords
- refrigerant
- cable
- cooling
- storage tank
- refrigerator
- 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
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
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は極低温ケーブルの冷
却装置および冷却方法に関するものである。The present invention relates to a cryogenic cable cooling device and method.
【０００２】[0002]
【従来の技術】極低温ケーブルを冷却する技術を図２に
示す。この装置は冷媒供給タンク１、貯溜タンク２、冷
凍機３およびこれらとケーブル４の各々を接続する配管
を有する冷却部と、被冷却部となるケーブル４とを具え
る。貯溜タンク２の冷媒を冷凍機３を介してケーブル４
に送り、ケーブル４を冷却してから貯溜タンク２に回収
する循環冷却を行う。冷媒は冷媒供給タンク１から貯溜
タンク２に供給され、ポンプ６により冷凍機に圧送され
る。また、冷凍機には冷媒の流量計９が具えられてい
る。2. Description of the Related Art FIG. 2 shows a technique for cooling a cryogenic cable. The apparatus includes a cooling unit having a refrigerant supply tank 1, a storage tank 2, a refrigerator 3, and a pipe connecting each of these to the cable 4, and a cable 4 to be cooled. The refrigerant in the storage tank 2 is transferred to the cable 4 via the refrigerator 3.
To cool the cable 4 and then recover it to the storage tank 2 for circulating cooling. The refrigerant is supplied from the refrigerant supply tank 1 to the storage tank 2 and is pumped to the refrigerator by the pump 6. The refrigerator is provided with a refrigerant flow meter 9.
【０００３】冷却を開始するとき、まずバルブ５を操作
して貯溜タンク２に冷媒を溜める。次に、バルブ８を閉
じた状態でポンプ６を作動させる。続いて、バルブ８を
開いて冷媒の流量を調整し、流量計９の許容値を越えな
い範囲で冷媒を循環させ、冷却部の冷却とケーブル４の
冷却とを行う。冷却部およびケーブル４の冷却が終了し
た時点でバルブ８を全開にし、貯溜タンク２→冷凍機３
→ケーブル４→貯溜タンク２の循環冷却を行う。なお、
ケーブル４の両端には端末部13A,13B が構成され、端末
部13A,13B の内部には冷媒が蓄えられている。When cooling is started, the refrigerant is first stored in the storage tank 2 by operating the valve 5. Next, the pump 6 is operated with the valve 8 closed. Subsequently, the valve 8 is opened to adjust the flow rate of the refrigerant, the refrigerant is circulated within a range not exceeding the allowable value of the flow meter 9, and the cooling unit and the cable 4 are cooled. When the cooling of the cooling section and the cable 4 is completed, the valve 8 is fully opened, and the storage tank 2 → the refrigerator 3
→ Cable 4 → Circulation cooling of storage tank 2 is performed. In addition,
Terminal portions 13A and 13B are formed at both ends of the cable 4, and a refrigerant is stored inside the terminal portions 13A and 13B.
【０００４】[0004]
【発明が解決しようとする課題】しかし、上記の技術に
は次の欠点がある。 通常、冷凍機の流量計はタービンを有し、急激な冷媒
の圧力変動に弱い構造となっている。そのため、冷却部
と熱容量の大きなケーブルとを一括して冷却すると、冷
媒の蒸発による急激な圧力変動によって流量計が破損す
るおそれがある。一方、流量計が破損しないように冷却
するには、初期冷却の速度を遅くしなければならず、冷
却装置の運転までに長時間を要する。However, the above technique has the following disadvantages. Normally, a flow meter of a refrigerator has a turbine and has a structure that is weak against sudden fluctuations in refrigerant pressure. Therefore, when the cooling section and the cable having a large heat capacity are cooled at once, there is a possibility that the flowmeter may be damaged due to rapid pressure fluctuation due to evaporation of the refrigerant. On the other hand, in order to cool the flow meter so as not to be damaged, the initial cooling speed must be reduced, and it takes a long time to operate the cooling device.
【０００５】上記の冷却装置は冷却部とケーブルとを
冷媒で満たす必要があるが、これらにおいて冷媒の容積
が占める割合は冷却部よりもケーブルの方が圧倒的に大
きい。もし運転中に冷却部で故障が発生すれば、冷却部
の冷媒はもちろん、修理に関係のないケーブルの冷媒も
一旦除去して昇温する必要がある。そのため、昇温の時
間と冷媒の損失が問題となる。In the above cooling device, it is necessary to fill the cooling section and the cable with the refrigerant. In these, the ratio of the volume of the refrigerant in the cable is much larger than that in the cooling section. If a failure occurs in the cooling unit during operation, it is necessary to temporarily remove not only the refrigerant in the cooling unit but also the refrigerant in the cable not related to repair, and raise the temperature. Therefore, there is a problem in the time of the temperature rise and the loss of the refrigerant.
【０００６】従って、本発明の主目的は、初期冷却時の
急激な冷媒の圧力変動に伴う冷却部の破損を防止し、冷
却装置のメンテナンスを容易にすることにある。Accordingly, it is a main object of the present invention to prevent breakage of a cooling unit due to a sudden change in refrigerant pressure during initial cooling, and to facilitate maintenance of a cooling device.
【０００７】[0007]
【課題を解決するための手段】本発明は上記の目的を達
成するため、冷却部の冷却とケーブルの冷却とを独立さ
せている。すなわち、本発明冷却装置は、貯溜タンク、
冷凍機、および貯溜タンクの冷媒を冷凍機に送り、再度
貯溜タンクに戻す循環路とを有する冷却部と、冷凍機を
介して冷媒が供給され、かつ貯溜タンクに冷媒を回収す
るように冷却部に接続されたケーブルと、ケーブルおよ
び冷却部に接続された補助冷媒タンクと、前記冷却部の
冷媒循環と補助冷媒タンクからケーブルへの冷媒供給と
を独立させるバルブとを具えることを特徴とする。According to the present invention, in order to achieve the above object, cooling of a cooling section and cooling of a cable are made independent. That is, the cooling device of the present invention includes a storage tank,
A cooling unit that has a circulation path that sends the refrigerant in the refrigerator and the storage tank to the refrigerator and returns the refrigerant to the storage tank again, and a cooling unit that is supplied with the refrigerant through the refrigerator and collects the refrigerant in the storage tank. , An auxiliary refrigerant tank connected to the cable and the cooling unit, and a valve that makes the refrigerant circulation of the cooling unit and the supply of the refrigerant from the auxiliary refrigerant tank to the cable independent. .
【０００８】また、本発明冷却方法は、貯溜タンクの冷
媒を冷凍機に送り、再度この冷媒を貯溜タンクに回収す
る冷却部の冷却と、補助冷媒タンクからケーブルに冷媒
を供給するケーブルの冷却とを独立して行い、その後、
冷却部からケーブルに冷媒を供給し、ケーブルの冷媒を
貯溜タンクに回収する循環冷却を行うことを特徴とす
る。Further, the cooling method of the present invention includes cooling a cooling section for sending a refrigerant in a storage tank to a refrigerator and recovering the refrigerant in the storage tank again, and cooling a cable for supplying the refrigerant from the auxiliary refrigerant tank to the cable. Independently, and then
The refrigerant is supplied from the cooling unit to the cable, and circulating cooling for collecting the refrigerant in the cable into the storage tank is performed.
【０００９】[0009]
【発明の実施の形態】以下、本発明の実施の形態を説明
する。図１は本発明の一実施形態を示す概略図である。
この装置は冷媒供給タンク１、貯溜タンク２、冷凍機３
およびこれらとケーブル４の各々を接続する配管を有す
る冷却部と、被冷却部となるケーブル４とを具える。Embodiments of the present invention will be described below. FIG. 1 is a schematic diagram showing one embodiment of the present invention.
This device comprises a refrigerant supply tank 1, a storage tank 2, a refrigerator 3
And a cooling unit having a pipe connecting each of them to each of the cables 4, and a cable 4 to be a part to be cooled.
【００１０】冷媒供給タンク１は貯溜タンク２に接続さ
れ、そこに冷媒（例えば、液体窒素）を供給する。両タ
ンク１，２の間にはバルブ５が設けられ、供給する冷媒
の流量を調整できる。貯溜タンク２はポンプ６を具え、
冷媒供給タンク１から送られてきた冷媒を冷凍機に圧送
する。また、貯溜タンク２はリークバルブ７により、内
部の圧力調整を行うことができる。さらに、貯溜タンク
２から冷凍機３に至る配管にはバルブ８が設けられ、冷
凍機３への冷媒の流量を調整できる。A coolant supply tank 1 is connected to a storage tank 2 and supplies a coolant (for example, liquid nitrogen) thereto. A valve 5 is provided between the two tanks 1 and 2 so that the flow rate of the supplied refrigerant can be adjusted. The storage tank 2 has a pump 6
The refrigerant sent from the refrigerant supply tank 1 is pumped to the refrigerator. The internal pressure of the storage tank 2 can be adjusted by the leak valve 7. Further, a valve 8 is provided in a pipe extending from the storage tank 2 to the refrigerator 3 so that the flow rate of the refrigerant to the refrigerator 3 can be adjusted.
【００１１】冷凍機３は貯溜タンク２から送られてきた
冷媒を冷却する。冷凍機の内部には流量計９が具えら
れ、ケーブル側に送られる冷媒の流量を監視できる。冷
凍機３から引き出された配管は二股に分岐され、一方は
貯溜タンク２に接続され、他方はケーブル側に延長され
ている。すなわち、貯溜タンク２へと接続された一方の
配管により、貯溜タンク２→冷凍機３→貯溜タンク２の
循環路が形成される。冷凍機３から貯溜タンク２までの
配管の途中にはバルブ10が設けられている。The refrigerator 3 cools the refrigerant sent from the storage tank 2. A flow meter 9 is provided inside the refrigerator to monitor the flow rate of the refrigerant sent to the cable side. The pipe drawn from the refrigerator 3 is branched into two branches, one of which is connected to the storage tank 2 and the other of which is extended to the cable side. That is, one of the pipes connected to the storage tank 2 forms a circulation path of the storage tank 2 → the refrigerator 3 → the storage tank 2. A valve 10 is provided in the middle of the pipe from the refrigerator 3 to the storage tank 2.
【００１２】一方、ケーブル側に延長された他方の配管
はバルブ11を介してさらに二股に分岐し、一方が補助冷
媒タンク12に、他方がケーブルの端末部13A に接続され
ている。補助冷媒タンク12は冷媒を貯溜し、その冷媒を
バルブ14と端末部13A とを介してケーブル４に供給す
る。On the other hand, the other pipe extending to the cable side is further branched into two branches via a valve 11, one of which is connected to the auxiliary refrigerant tank 12, and the other of which is connected to the terminal 13A of the cable. The auxiliary refrigerant tank 12 stores the refrigerant, and supplies the refrigerant to the cable 4 via the valve 14 and the terminal 13A.
【００１３】端末部13A,13B はケーブル４の両端から電
力を気中に取り出す箇所である。端末部13A,13B には冷
媒が内蔵され、そこに導体15が浸漬されている。端末部
13A,13B とケーブル４との間は隔壁（例えば、ＦＲＰ樹
脂）によって隔離され、相互に連通しない構造となって
いる。The terminal sections 13A and 13B are places where power is taken out from both ends of the cable 4 into the air. The terminal portions 13A and 13B contain a coolant, and the conductor 15 is immersed therein. Terminal section
The space between the cables 13A and 13B and the cable 4 is separated by a partition wall (for example, FRP resin), so that they do not communicate with each other.
【００１４】ケーブル４は中心部に導体15が配置され、
その外周を覆う管路16を具えている。ケーブルの導体内
部には冷媒の流路が形成され、一方の端末部13A から導
体内に導入された冷媒は他方の端末部13B 側で導体15の
外周に吐出されて折返し、導体15と管路16の間を通って
ケーブル４に接続された復路配管17へと導かれる。そし
て、復路配管17は冷凍機３から貯溜タンク２に至る循環
路に接続されている。すなわち、貯溜タンク２→冷凍機
３→バルブ11→端末部13A →ケーブル４→復路配管17→
貯溜タンク２の循環路が形成される。ここで、復路配管
17の途中にはバルブ18が設けられ、さらに復路配管17の
分岐管に圧力調整バルブ19も設けられている。The cable 4 has a conductor 15 disposed in the center thereof.
A conduit 16 is provided to cover the outer periphery. A coolant flow path is formed inside the conductor of the cable, and the refrigerant introduced into the conductor from one end 13A is discharged to the outer periphery of the conductor 15 at the other end 13B and turned back, and the conductor 15 and the conduit It is led to the return pipe 17 connected to the cable 4 through the space between the cables 16. The return pipe 17 is connected to a circulation path from the refrigerator 3 to the storage tank 2. That is, storage tank 2 → refrigerator 3 → valve 11 → terminal 13A → cable 4 → return pipe 17 →
A circulation path for the storage tank 2 is formed. Where the return piping
A valve 18 is provided in the middle of 17, and a pressure adjusting valve 19 is also provided on a branch pipe of the return pipe 17.
【００１５】上記の装置による冷却は次のように行う。
まず、バルブ５を開いて冷媒供給タンク１から貯溜タン
ク２に冷媒を供給する。The cooling by the above-described device is performed as follows.
First, the valve 5 is opened to supply the refrigerant from the refrigerant supply tank 1 to the storage tank 2.
【００１６】次に、バルブ８,10 を開け、バルブ11,18
を閉じてポンプと冷凍機を始動させる。これにより、貯
溜タンク２→冷凍機３→貯溜タンク２の循環路を冷媒で
満たして冷却する。このとき、流量計により冷媒流量を
監視する。Next, the valves 8 and 10 are opened, and the valves 11 and 18 are opened.
Close and start pump and refrigerator. Thereby, the circulation path of the storage tank 2 → the refrigerator 3 → the storage tank 2 is filled with the refrigerant and cooled. At this time, the flow rate of the refrigerant is monitored by a flow meter.
【００１７】一方、バルブ14を開いて補助冷媒タンクか
らケーブルに冷媒を供給する。これによりケーブル４
と、そこまでの配管とを冷却する。このとき、冷媒の気
化により生じた気体は圧力調整バルブから外部に放出す
る。On the other hand, the valve 14 is opened to supply the refrigerant from the auxiliary refrigerant tank to the cable. This allows cable 4
And cool the piping up to that. At this time, the gas generated by the vaporization of the refrigerant is released from the pressure regulating valve to the outside.
【００１８】そして、冷却部とケーブルとの冷却を完了
してからバルブ10,14 を閉じ、バルブ11,18 を開けて、
貯溜タンク２→冷凍機３→バルブ11→端末部13A →ケー
ブル４→復路配管17→貯溜タンク２の循環冷却を行う。After the cooling of the cooling section and the cable is completed, the valves 10, 14 are closed, the valves 11, 18 are opened,
The storage tank 2 → the refrigerator 3 → the valve 11 → the terminal 13A → the cable 4 → the return pipe 17 → the circulation cooling of the storage tank 2 is performed.
【００１９】このように、冷却部（貯溜タンク２→冷凍
機３→貯溜タンク２の循環路）の冷却とケーブルの冷却
を分離して行うことで、冷却部の初期冷却時の負荷を減
らし、急激な圧力変動に伴って生じる機器（特に流量
計）の損傷を防止する。As described above, by performing cooling of the cooling unit (storage tank 2 → refrigerator 3 → circulation path of the storage tank 2) and cooling of the cable separately, the load of the cooling unit during initial cooling can be reduced. Prevents damage to equipment (especially flow meters) caused by sudden pressure fluctuations.
【００２０】また、故障，メンテナンスの際には、バル
ブ10,11,18を操作することで、冷却部とケーブルとの冷
媒流路を分断し、それぞれ独立して点検作業を行えるた
め作業性が向上する。特に、冷却部は定期的な検査が必
要で、検査に伴う昇温の際、ケーブルと冷媒流路を分断
できれば、昇温時間の短縮と再起動時の冷却時間を短縮
することができる。In case of trouble or maintenance, the valves 10, 11, and 18 are operated to divide the refrigerant flow path between the cooling section and the cable, and the inspection work can be performed independently of each other. improves. In particular, the cooling unit needs to be periodically inspected, and if the cable and the refrigerant flow path can be separated at the time of temperature rise accompanying the inspection, the time required for temperature rise and the cooling time required for restart can be shortened.
【００２１】[0021]
【発明の効果】以上説明したように、本発明装置と方法
によれば、冷却部とケーブルとを独立して冷却すること
ができるため、初期冷却時の冷却部の熱的負荷を減らす
ことができる。そのため、冷媒の気化による急激な圧力
変動に伴って流量計などの機器が破損することを防止で
きる。また、冷却部とケーブルを独立してメンテナンス
できるため、点検作業時の昇温時間を短縮することがで
きる。また、冷媒の損失も抑えることができる。As described above, according to the apparatus and method of the present invention, the cooling section and the cable can be cooled independently, so that the thermal load on the cooling section during the initial cooling can be reduced. it can. Therefore, it is possible to prevent equipment such as a flow meter from being damaged due to a rapid pressure change due to the vaporization of the refrigerant. In addition, since the cooling unit and the cable can be maintained independently, it is possible to reduce the time required for temperature rise during inspection work. Further, loss of the refrigerant can be suppressed.
【図１】本発明冷却装置の概略図。FIG. 1 is a schematic diagram of a cooling device of the present invention.
【図２】従来の冷却装置の概略図。FIG. 2 is a schematic diagram of a conventional cooling device.
１ 冷媒供給タンク ２ 貯溜タンク ３ 冷凍機 ４
ケーブル ５ バルブ ６ ポンプ ７ リークバルブ ８ バル
ブ ９ 流量計 10 バルブ 11 バルブ 12 補助冷媒タンク 13A,13
B 端末部 14 バルブ 15 導体 16 管路 17 復路配管 18 バルブ 19
圧力調整バルブ1 Refrigerant supply tank 2 Storage tank 3 Refrigerator 4
Cable 5 Valve 6 Pump 7 Leak valve 8 Valve 9 Flow meter 10 Valve 11 Valve 12 Auxiliary refrigerant tank 13A, 13
B Terminal 14 Valve 15 Conductor 16 Pipe line 17 Return line 18 Valve 19
Pressure regulating valve
Claims (2)
の冷媒を冷凍機に送り、再度貯溜タンクに戻す循環路と
を有する冷却部と、 冷凍機を介して冷媒が供給され、かつ貯溜タンクに冷媒
を回収するように冷却部に接続されたケーブルと、 ケーブルおよび冷却部に接続された補助冷媒タンクと、 前記冷却部の冷媒循環と補助冷媒タンクからケーブルへ
の冷媒供給とを独立させるバルブとを具えることを特徴
とする極低温ケーブルの冷却装置。1. A cooling unit having a storage tank, a refrigerator, and a circulation path for sending a refrigerant in the storage tank to the refrigerator and returning the refrigerant to the storage tank again, a refrigerant being supplied through the refrigerator, and being supplied to the storage tank. A cable connected to the cooling unit so as to collect the refrigerant, an auxiliary refrigerant tank connected to the cable and the cooling unit, and a valve for separating the refrigerant circulation of the cooling unit and the supply of the refrigerant from the auxiliary refrigerant tank to the cable. A cryogenic cable cooling device, comprising:
この冷媒を貯溜タンクに回収する冷却部の冷却と、補助
冷媒タンクからケーブルに冷媒を供給するケーブルの冷
却とを独立して行い、その後、冷却部からケーブルに冷
媒を供給し、ケーブルの冷媒を貯溜タンクに回収する循
環冷却を行うことを特徴とする極低温ケーブルの冷却方
法。2. Cooling a cooling unit for sending the refrigerant in the storage tank to the refrigerator and recovering the refrigerant in the storage tank again, and cooling the cable for supplying the refrigerant from the auxiliary refrigerant tank to the cable are performed independently. Thereafter, a refrigeration cable is cooled by supplying a refrigerant from a cooling unit to the cable and recovering the refrigerant from the cable to a storage tank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP28171296A JP3818328B2 (en) | 1996-10-02 | 1996-10-02 | Cryogenic cable cooling apparatus and cooling method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP28171296A JP3818328B2 (en) | 1996-10-02 | 1996-10-02 | Cryogenic cable cooling apparatus and cooling method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH10112925A true JPH10112925A (en) | 1998-04-28 |
| JP3818328B2 JP3818328B2 (en) | 2006-09-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP28171296A Expired - Fee Related JP3818328B2 (en) | 1996-10-02 | 1996-10-02 | Cryogenic cable cooling apparatus and cooling method |
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| Country | Link |
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| JP (1) | JP3818328B2 (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002260458A (en) * | 2001-03-06 | 2002-09-13 | Sumitomo Electric Ind Ltd | Method for controlling vaporizing speed of coolant of superconducting cable |
| KR100633558B1 (en) | 2005-04-13 | 2006-10-13 | 엘에스전선 주식회사 | Pressure buildup device for a superconducting cable system |
| JP2007028710A (en) * | 2005-07-12 | 2007-02-01 | Sumitomo Electric Ind Ltd | Connection structure for dc superconductive cable |
| US7854132B2 (en) | 2005-02-18 | 2010-12-21 | Sumitomo Electric Industries, Ltd. | Circulation cooling system of cryogenic cable |
| EP2709225A1 (en) * | 2012-09-18 | 2014-03-19 | Nexans | Assembly and method for cooling a superconducting cable |
| CN105355319A (en) * | 2015-12-03 | 2016-02-24 | 中国电力科学研究院 | Cryostat for superconducting cable |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DK3503329T3 (en) * | 2017-12-19 | 2020-10-26 | Nexans | PROCEDURE FOR COOLING A SUPER CONDUCTIVE CABLE SYSTEM |
-
1996
- 1996-10-02 JP JP28171296A patent/JP3818328B2/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002260458A (en) * | 2001-03-06 | 2002-09-13 | Sumitomo Electric Ind Ltd | Method for controlling vaporizing speed of coolant of superconducting cable |
| US7854132B2 (en) | 2005-02-18 | 2010-12-21 | Sumitomo Electric Industries, Ltd. | Circulation cooling system of cryogenic cable |
| KR100633558B1 (en) | 2005-04-13 | 2006-10-13 | 엘에스전선 주식회사 | Pressure buildup device for a superconducting cable system |
| JP2007028710A (en) * | 2005-07-12 | 2007-02-01 | Sumitomo Electric Ind Ltd | Connection structure for dc superconductive cable |
| EP2709225A1 (en) * | 2012-09-18 | 2014-03-19 | Nexans | Assembly and method for cooling a superconducting cable |
| CN105355319A (en) * | 2015-12-03 | 2016-02-24 | 中国电力科学研究院 | Cryostat for superconducting cable |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3818328B2 (en) | 2006-09-06 |
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