JPS6120303A - Superconductive coil apparatus - Google Patents
Superconductive coil apparatusInfo
- Publication number
- JPS6120303A JPS6120303A JP14061684A JP14061684A JPS6120303A JP S6120303 A JPS6120303 A JP S6120303A JP 14061684 A JP14061684 A JP 14061684A JP 14061684 A JP14061684 A JP 14061684A JP S6120303 A JPS6120303 A JP S6120303A
- Authority
- JP
- Japan
- Prior art keywords
- superconducting coil
- resistance wire
- superconductive coil
- protective resistance
- persistent current
- 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
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F6/00—Superconducting magnets; Superconducting coils
- H01F6/06—Coils, e.g. winding, insulating, terminating or casing arrangements therefor
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Containers, Films, And Cooling For Superconductive Devices (AREA)
Abstract
Description
【発明の詳細な説明】
〔発明の技術分野〕
本発明は永久電流モードで運転する超電導コイル装置に
関するものである。DETAILED DESCRIPTION OF THE INVENTION [Technical Field of the Invention] The present invention relates to a superconducting coil device operating in persistent current mode.
超電導コイルはその特徴の１つである抵抗が零という性
質を利用して、永久電流スイッチと組合せることにより
、電流の減衰が極めて少ない永久電流モードをつくるこ
とができる。第２図の回路図において、超電導コイル１
と並列に永久電流スイッチ２を接続し、保護抵抗８をス
イッチ４を介して永久電流スイッチ２に並列に接続する
。超電導コイル１の励磁では、外部の電源から電流９−
ド５を通して電流を超電導コイルに供給する。その際に
、永久電流スイッチ２は常電導状態、すなわち、抵抗状
態にし、また、スイッチ４をオフの状態に設定しておく
。所定の電流値まで励磁した後、永久電流スイッチ２を
超電導状態に転移させて、超電導コイル１に流れている
電流を永久電流スイッチ２にバイパスして、永久電流の
循環モードをつくる。その後、電源から供給していた電
流を零に下げる。永久電流は超電導コイル１と永久電流
スイッチ２との間で維持される。液体ヘリウムなどの冷
媒に入る熱侵入量を少なくするために、電流リード５を
着脱式１＝シ、永久電流モードを達成した後、電源より
供給していた電流を零（二下げ、スイッチ４をオン状態
にし、次に、電流リード５をクライオスタットより切り
離す。One of the characteristics of a superconducting coil is that it has zero resistance, and by combining it with a persistent current switch, it is possible to create a persistent current mode with extremely low current attenuation. In the circuit diagram of Figure 2, superconducting coil 1
A persistent current switch 2 is connected in parallel to the persistent current switch 2, and a protective resistor 8 is connected in parallel to the persistent current switch 2 via the switch 4. To excite the superconducting coil 1, a current 9- is supplied from an external power source.
A current is supplied to the superconducting coil through the lead 5. At this time, the persistent current switch 2 is placed in a normally conductive state, that is, a resistive state, and the switch 4 is set in an off state. After excitation to a predetermined current value, the persistent current switch 2 is transferred to a superconducting state, and the current flowing in the superconducting coil 1 is bypassed to the persistent current switch 2, thereby creating a persistent current circulation mode. After that, reduce the current supplied from the power supply to zero. A persistent current is maintained between the superconducting coil 1 and the persistent current switch 2. In order to reduce the amount of heat entering the refrigerant such as liquid helium, the current lead 5 is removable. After achieving persistent current mode, the current supplied from the power supply is lowered to zero (2), and switch 4 is turned off. Turn it on, and then disconnect the current lead 5 from the cryostat.
この状態では、超電導コイル１．永久電流スイッチ２．
保護抵抗３．スイッチ４がクライオスタット内にあり、
永久電流モードの電流が超電導コイル１と永久電流スイ
ッチ２を循環して流れ続ける。超電導コイル１、または
、永久電流スイッチ２が何らかの原因によって常電導に
転移し、クエンチに至った場合には、超電導コイル１に
蓄えられていたエネルギがクライオスタット内で放出さ
れる。超電導コイル１のみがクエンチした場合には、永
久電流スイッチ２内に埋め込まれているヒータにより永
久電流スイッチ２も常電導に強制的に転移させ、超電導
コイルｌの蓄積エネルギーを保護抵抗８で消費させ、超
電導コイルｌの損傷を防ぐ。また、永久電流スイッチ２
がクエンチした場合にも、超電導コイル１の蓄積エネル
ギーを保護抵抗８で消費し、永久電流スイッチ２を保護
する。In this state, superconducting coil 1. Persistent current switch 2.
Protection resistance 3. Switch 4 is inside the cryostat,
The persistent current mode current continues to circulate through the superconducting coil 1 and the persistent current switch 2. When the superconducting coil 1 or the persistent current switch 2 changes to normal conductivity for some reason and quenches, the energy stored in the superconducting coil 1 is released within the cryostat. When only the superconducting coil 1 is quenched, the persistent current switch 2 is also forcibly transferred to normal conductivity by the heater embedded in the persistent current switch 2, and the energy stored in the superconducting coil 1 is consumed by the protective resistor 8. , to prevent damage to the superconducting coil l. In addition, persistent current switch 2
Even when the superconducting coil 1 quenches, the energy stored in the superconducting coil 1 is consumed by the protective resistor 8 to protect the persistent current switch 2.
超電導コイル１の蓄積エネルギーが大きくなるにしたが
って、保護抵抗８の熱容量は大きなものが要求されるよ
うになる。また、必要な抵抗値も大きくなる。これらの
要求を満足するように、ステンレスあるいは鋼、アルミ
ニウム、または、それらの合金などの金属で保護抵抗を
構成しようとすると、円または矩形の断面を有し、かつ
相当に長い線またはテープ状になる。したがって、保護
抵抗８は巻枠；＝無誘導；；巻き回してクライオスタッ
ト内に収納する必要があり、これは蓄積エネルギーが大
きくなるに伴ない、広い空間を必要とする。As the energy stored in the superconducting coil 1 increases, the protective resistor 8 is required to have a larger heat capacity. Additionally, the required resistance value also increases. In order to satisfy these requirements, if a protective resistor is made of metal such as stainless steel, steel, aluminum, or an alloy thereof, it will have a circular or rectangular cross section and a fairly long wire or tape shape. Become. Therefore, the protective resistor 8 must be wound around a winding frame and housed in the cryostat, which requires a large space as the stored energy increases.
本発明の目的は保護抵抗のためのスペースをあまりとら
ないコンパクトな超電導コイル装置を提供することにあ
る。The object of the invention is to provide a compact superconducting coil arrangement that does not take up much space for protective resistors.
上記目的を達成するために、本発明においては保護抵抗
線を超電導コイルの外局に巻回して保護抵抗のための巻
枠およびクライオスタット内の空間を別に設けないよう
にする。In order to achieve the above object, in the present invention, the protective resistance wire is wound around the outer part of the superconducting coil, so that there is no need to provide a separate winding frame and space within the cryostat for the protective resistance.
以下、この発明の一実施例について第１図を参照して説
明する。なお、ｊ８１図において、第２図と同一要素に
は同一符号を付してその説明を省略する。すなわち超電
導コイル１の外局に保護抵抗８を無誘導巻する。保護抵
抗８のワイヤの断面は丸形のみでなく矩形でも良い。ま
た、その材質は銅、アルミニウム、ステンレス、または
合金でも可能でめる。An embodiment of the present invention will be described below with reference to FIG. In addition, in FIG. j81, the same elements as in FIG. 2 are given the same reference numerals and their explanations will be omitted. That is, the protective resistor 8 is non-inductively wound around the outer part of the superconducting coil 1. The cross section of the wire of the protective resistor 8 may be not only round but also rectangular. The material can also be copper, aluminum, stainless steel, or an alloy.
保護抵抗３をこのように構成すると、超電導コイル１の
外局の僅かな空間に設置できる。電磁力支持用バインド
線も兼用できる。また、保護抵抗８は超電導コイル１が
クエンチしたときの擾乱磁界の作用を受けないので機械
的に安定でおる。By configuring the protective resistor 3 in this way, it can be installed in a small space at the outer station of the superconducting coil 1. It can also be used as a binding wire for supporting electromagnetic force. Furthermore, the protective resistor 8 is not affected by the disturbance magnetic field when the superconducting coil 1 is quenched, so it is mechanically stable.
保護抵抗を超電導コイルの外局に巻回する時に、無誘導
（二巻回するだけでなく、超電導コイルの磁界を減少さ
せる方向に誘導巻線することも可能である。このような
構成（ニすると、コイルと保護抵抗線の合成インダクタ
ンスが小さくなり、電流の減衰が大きくなり、超電導コ
イルの保護に役立つ。When winding the protective resistor around the outer part of the superconducting coil, it is possible to wind the protective resistor in the direction of reducing the magnetic field of the superconducting coil in addition to non-inductive winding (two windings). This reduces the combined inductance of the coil and protective resistance wire, increases the attenuation of the current, and helps protect the superconducting coil.
本発明においては、保護抵抗線を超電導コイルの外局に
巻くようにしたので、超電導コイル装置はコンパクトに
なる。In the present invention, since the protective resistance wire is wound around the outer part of the superconducting coil, the superconducting coil device becomes compact.
９１１図は本発明の一実施例の超電導コイル装置の要部
の断面図、第２図は本発明と従来技術（二共通する超電
導コイル装置の電気接続図でおる。
１・・・超電導コイル ２・・・永久電流スイッチ８
・・・保護抵抗 ４・・・スイッチ５・・・電流
リードFigure 911 is a cross-sectional view of the main parts of a superconducting coil device according to an embodiment of the present invention, and Figure 2 is an electrical connection diagram of the present invention and the conventional technology (the two common superconducting coil devices. 1... Superconducting coil 2 ... Persistent current switch 8
...Protective resistor 4...Switch 5...Current lead
Claims (3)
された保護抵抗とを備えたことを特徴とする超電導コイ
ル装置。(1) A superconducting coil device comprising a superconducting coil and a protective resistor wound around the outer part of the superconducting coil.
許請求の範囲第１項記載の超電導コイル装置。(2) The superconducting coil device according to claim 1, wherein the protective resistor is non-inductively wound.
とを特徴とする特許請求の範囲第１項記載の超電導コイ
ル装置。(3) The superconducting coil device according to claim 1, wherein the protective resistor is wound in the opposite direction to the superconducting coil.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14061684A JPS6120303A (en) | 1984-07-09 | 1984-07-09 | Superconductive coil apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14061684A JPS6120303A (en) | 1984-07-09 | 1984-07-09 | Superconductive coil apparatus |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6120303A true JPS6120303A (en) | 1986-01-29 |
| JPH0466087B2 JPH0466087B2 (en) | 1992-10-22 |
Family
ID=15272847
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14061684A Granted JPS6120303A (en) | 1984-07-09 | 1984-07-09 | Superconductive coil apparatus |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6120303A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04136777A (en) * | 1990-09-28 | 1992-05-11 | Agency Of Ind Science & Technol | Squid element having resistance layer |
| JP2006145572A (en) * | 2004-11-16 | 2006-06-08 | Seiko Epson Corp | Wire bar and image forming apparatus |
| JP2011138892A (en) * | 2009-12-28 | 2011-07-14 | Toshiba Corp | Superconducting magnet device, and quenching protecting method thereof |
| US8989828B2 (en) | 2012-06-04 | 2015-03-24 | Hitachi, Ltd. | Superconducting magnet apparatus |
-
1984
- 1984-07-09 JP JP14061684A patent/JPS6120303A/en active Granted
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04136777A (en) * | 1990-09-28 | 1992-05-11 | Agency Of Ind Science & Technol | Squid element having resistance layer |
| JP2006145572A (en) * | 2004-11-16 | 2006-06-08 | Seiko Epson Corp | Wire bar and image forming apparatus |
| JP2011138892A (en) * | 2009-12-28 | 2011-07-14 | Toshiba Corp | Superconducting magnet device, and quenching protecting method thereof |
| US8989828B2 (en) | 2012-06-04 | 2015-03-24 | Hitachi, Ltd. | Superconducting magnet apparatus |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0466087B2 (en) | 1992-10-22 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EXPY | Cancellation because of completion of term |