JP2000133515A - Superconducting coil for guiding equipment - Google Patents
Superconducting coil for guiding equipmentInfo
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- JP2000133515A JP2000133515A JP30494098A JP30494098A JP2000133515A JP 2000133515 A JP2000133515 A JP 2000133515A JP 30494098 A JP30494098 A JP 30494098A JP 30494098 A JP30494098 A JP 30494098A JP 2000133515 A JP2000133515 A JP 2000133515A
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- Prior art keywords
- coil
- superconducting
- winding
- superconducting wire
- single coil
- Prior art date
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Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、変圧器やリアクト
ルなどの誘導機器に使用される超電導コイルに関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a superconducting coil used for an induction device such as a transformer or a reactor.
【０００２】[0002]
【従来の技術】超電導コイルは高磁界発生手段として種
々の分野で実用化されている。一方、変圧器のような交
流機器への超電導コイルの適用は、超電導導体が交流に
よって損失を発生するという現象があることから、その
実用化は進んでいない。近年、超電導導体素線の細線化
による交流損失の小さな超電導線材が開発されて、変圧
器などの交流機器への適用研究が行われている。その場
合、ヘリウムの蒸発温度である４Ｋの極低温で超電導状
態を維持する金属超電導体を使用した超電導線材が、実
用的な超電導材料として使用されることがある。酸化物
超電導体は高温超電導体とも呼ばれており、この高温超
電導体を使用した超電導線材は、金属超電導体を使用し
た超電導線材に比べて運転コストが低いという特長があ
る。2. Description of the Related Art Superconducting coils have been put to practical use in various fields as means for generating a high magnetic field. On the other hand, application of a superconducting coil to an AC device such as a transformer has not been put to practical use due to a phenomenon in which a superconducting conductor generates a loss due to an alternating current. In recent years, superconducting wires having a small AC loss due to thinning of superconducting conductor wires have been developed, and research on application to AC devices such as transformers has been conducted. In such a case, a superconducting wire using a metal superconductor that maintains a superconducting state at a cryogenic temperature of 4 K, which is the evaporation temperature of helium, may be used as a practical superconducting material. An oxide superconductor is also called a high-temperature superconductor, and a superconducting wire using this high-temperature superconductor has a feature that the operating cost is lower than a superconducting wire using a metal superconductor.
【０００３】図１４は、従来技術による変圧器のコイル
構成図である。図１４において、鉄心１、内側コイル
２、外側コイル３００は同心状に配置されており、その
対称軸はこの図の鉄心１の左側にある。従って、鉄心１
の外径側に内側コイル２が、更にその外径側に外側コイ
ル３００が配置されていることを示している。変圧器の
場合、一般的に内側コイルを低圧巻線、外側コイルを高
圧巻線として使用している。FIG. 14 is a diagram showing a coil configuration of a conventional transformer. 14, the iron core 1, the inner coil 2, and the outer coil 300 are arranged concentrically, and the axis of symmetry is on the left side of the iron core 1 in this figure. Therefore, iron core 1
Indicates that the inner coil 2 is arranged on the outer diameter side and the outer coil 300 is further arranged on the outer diameter side. In the case of a transformer, the inner coil is generally used as a low-voltage winding and the outer coil is used as a high-voltage winding.
【０００４】変圧器の場合、前記した低圧巻線と高圧巻
線の巻回数の比は、変圧比にほぼ比例する。例えば、変
圧比２の変圧器の場合、高圧巻線の巻回数は低圧巻線の
巻回数のほぼ２倍となる。この場合、高圧巻線を２層構
造として構成するのが一般的である。図１５は、内側コ
イル（低圧巻線）２を１層、外側コイル（高圧巻線）３
を内径側巻線３１と外径側巻線３２との２層とした場合
の従来技術による変圧器のコイル構成図である。In the case of a transformer, the ratio of the number of turns of the low-voltage winding to that of the high-voltage winding is substantially proportional to the transformation ratio. For example, in the case of a transformer having a transformation ratio of 2, the number of turns of the high-voltage winding is almost twice the number of turns of the low-voltage winding. In this case, the high-voltage winding is generally configured as a two-layer structure. FIG. 15 shows one layer of the inner coil (low-voltage winding) 2 and the outer coil (high-voltage winding) 3
FIG. 3 is a coil configuration diagram of a transformer according to the related art when is formed as two layers of an inner diameter side winding 31 and an outer diameter side winding 32.
【０００５】図１６は、従来技術による銀シース高温超
電導線材を図１５のようなコイル構成の変圧器に適用し
た場合の巻線構造図である。図１６において、巻枠４０
は内側コイル２用の巻枠であり、巻枠４は外側コイル３
の内径側巻線３１用の巻枠であり、巻枠４１は外側コイ
ル３の外径側巻線３２用の巻枠である。現在開発されて
いる高温超電導線材５は、厚さが０．２ｍｍ程度のテー
プ状線材の単体あるいは積層されたものからなるため、
ＦＲＰ等の絶縁物で構成された巻枠４０，４，４１の外
径側に施した溝に埋め込むようにして捲かれる。FIG. 16 is a diagram showing a winding structure when a conventional silver sheathed high-temperature superconducting wire is applied to a transformer having a coil configuration as shown in FIG. In FIG.
Is a winding frame for the inner coil 2, and the winding frame 4 is
The winding frame 41 is a winding frame for the outer diameter winding 32 of the outer coil 3. Since the currently developed high-temperature superconducting wire 5 is made of a single or laminated tape-like wire having a thickness of about 0.2 mm,
It is wound so as to be embedded in a groove provided on the outer diameter side of the winding frames 40, 4, 41 made of an insulating material such as FRP.
【０００６】図１７は、図１６のＡ−Ａ断面図である。
前記したように、超電導線材５は交流通電時に交流損失
を発生するので、冷却効率を向上するために、半径方向
に間隔をおいて液体窒素が流入できるような冷却ダクト
６０，６，６１としての溝加工が巻枠４０，４，４１に
施されている。FIG. 17 is a sectional view taken along the line AA of FIG.
As described above, since the superconducting wire 5 generates an AC loss when the AC is applied, in order to improve the cooling efficiency, the cooling ducts 60, 6, 61 through which liquid nitrogen can flow at intervals in the radial direction are provided. Groove processing is performed on the winding frames 40, 4, 41.
【０００７】[0007]
【発明が解決しようとする課題】変圧器の場合、負荷側
で短絡事故が発生すると、大きな短絡電流が流れること
により過大な電磁力がコイルに働く。図１５に示した変
圧器のコイル構成の場合、矢印の向きの電磁力が働くこ
ととなる。すなわち、内側コイル（低圧巻線）２には径
方向に内向きの力がかかり、外側コイル（高圧巻線）３
には径方向に外向きの力がかかることになる。In the case of a transformer, when a short-circuit accident occurs on the load side, a large short-circuit current flows and an excessive electromagnetic force acts on the coil. In the case of the coil configuration of the transformer shown in FIG. 15, an electromagnetic force acts in the direction of the arrow. That is, a radially inward force is applied to the inner coil (low-voltage winding) 2 and the outer coil (high-voltage winding) 3
Is subjected to a radially outward force.
【０００８】短絡電流の大きさは変圧器の％インピーダ
ンスの逆数倍となるので、例えば、％インピーダンスが
１０％の場合、定格電流に対して１０倍の短絡電流が流
れる。さらに、衝撃係数や波高値を考慮すると、短絡電
流（実効値）に対して約２．５倍として電磁力を見積も
る必要があり、結局％インピーダンスが１０％の場合
は、定格電流（実効値）の２５倍の短絡電流（実効値）
が流れるものとして対策を講じる必要がある。The magnitude of the short-circuit current is the reciprocal of the% impedance of the transformer. For example, when the% impedance is 10%, the short-circuit current flows ten times the rated current. In addition, considering the impact coefficient and peak value, it is necessary to estimate the electromagnetic force as about 2.5 times the short-circuit current (effective value). In the event that the% impedance is 10%, the rated current (effective value) 25 times the short circuit current (effective value)
It is necessary to take countermeasures as it flows.
【０００９】一方、高温超電導線材を変圧器用コイルに
適用した場合、超電導であるがゆえに電流密度は通常の
油入変圧器に比べて５〜２０倍となる。従って、前述し
た短絡電流を考慮した場合、過大な電磁力がコイルにか
かり、破損する危険性が非常に高くなる。図１５に示し
た変圧器のコイル構成の場合、内側コイル２は径方向に
内向きの力が働くため、巻枠が電磁力支持を兼用するこ
ととなり、巻枠の厚みを適切な値とすることにより電磁
力支持が可能となる。しかしながら、外側コイル３の場
合は径方向に外向きの力が働くため、超電導線材には引
っ張り力がかかり、電磁力支持をしないと最悪の場合断
線する危険性が発生する。On the other hand, when a high-temperature superconducting wire is applied to a transformer coil, the current density is 5 to 20 times that of a normal oil-filled transformer because of the superconductivity. Therefore, when the short-circuit current described above is taken into consideration, an excessive electromagnetic force is applied to the coil, and the risk of breakage is extremely high. In the case of the coil configuration of the transformer shown in FIG. 15, since the inward coil acts on the inner coil 2 in the radial direction, the reel also serves as an electromagnetic force support, and the thickness of the reel is set to an appropriate value. This makes it possible to support electromagnetic force. However, in the case of the outer coil 3, an outward force acts in the radial direction, so that a pulling force is applied to the superconducting wire, and in the worst case, there is a risk of disconnection unless the electromagnetic force is supported.
【００１０】本発明の目的は、前述した短絡事故時にお
ける電磁力による破損を防止し安全に継続運転すること
のできる、高温超電導線材を適用した誘導機器の超電導
コイルを提供することにある。It is an object of the present invention to provide a superconducting coil for an induction machine to which a high-temperature superconducting wire is applied, which can prevent breakage due to electromagnetic force at the time of the above-mentioned short circuit accident and can safely operate continuously.
【００１１】[0011]
【課題を解決するための手段】上記課題を解決するため
に、本発明においては、単一のコイルあるいは同軸に巻
回された内側コイルおよび外側コイルを備え、前記単一
のコイルあるいは前記内側コイルおよび外側コイルが円
筒状の絶縁材の外径側の溝に沿って超電導線材を巻回し
てなる超電導巻線からなる誘導機器の超電導コイルにお
いて、前記単一のコイルあるいは前記外側コイルの最外
径側に支持円筒を具備し、かつ、前記単一のコイルある
いは前記外側コイルの超電導巻線と前記支持円筒間にス
ペーサを具備することとした。このような構成とするこ
とにより、超電導巻線にかかる半径方向に外向きの電磁
力を支持することができる。In order to solve the above-mentioned problems, the present invention comprises a single coil or an inner coil and an outer coil wound coaxially, wherein the single coil or the inner coil is provided. And the outer coil is a superconducting coil of an induction device comprising a superconducting winding formed by winding a superconducting wire along a groove on the outer diameter side of a cylindrical insulating material, wherein the outermost diameter of the single coil or the outer coil A supporting cylinder is provided on the side, and a spacer is provided between the superconducting winding of the single coil or the outer coil and the supporting cylinder. With such a configuration, a radially outward electromagnetic force applied to the superconducting winding can be supported.
【００１２】また、単一のコイルあるいは同軸に巻回さ
れた内側コイルおよび外側コイルを備え、前記単一のコ
イルあるいは前記内側コイルおよび外側コイルが円筒状
の絶縁材の外径側の溝に沿って超電導線材を巻回してな
る超電導巻線からなるとともに、前記単一のコイルある
いは前記外側コイルが前記超電導巻線を２層以上半径方
向に重ねて形成されてなる誘導機器の超電導コイルにお
いて、前記単一のコイルあるいは前記外側コイルの最外
径側に支持円筒を具備し、かつ、前記単一のコイルある
いは前記外側コイルの超電導巻線間および最外径側の超
電導巻線と前記支持円筒間にスペーサを具備することと
した。このような構成とすることにより、超電導巻線に
かかる半径方向に外向きの電磁力を支持することができ
る。[0012] Further, a single coil or an inner coil and an outer coil wound coaxially are provided, and the single coil or the inner coil and the outer coil are formed along an outer diameter groove of a cylindrical insulating material. A superconducting coil formed by winding a superconducting wire, and wherein the single coil or the outer coil is formed by laminating the superconducting winding in two or more layers in the radial direction, A support cylinder is provided on the outermost diameter side of a single coil or the outer coil, and between the superconducting windings of the single coil or the outer coil and between the superconducting winding on the outermost diameter and the support cylinder. Is provided with a spacer. With such a configuration, a radially outward electromagnetic force applied to the superconducting winding can be supported.
【００１３】また、かかる構成において、前記スペーサ
が周方向に間隔をあけて設置されることとした。このよ
うな構成とすることにより、超電導巻線にかかる半径方
向に外向きの電磁力を支持することができるとともに、
周方向に隣接するスペーサ間に冷却ダクトが形成される
ことにより超電導巻線の冷却表面積が増大し、冷却効率
が向上する。In this configuration, the spacers are arranged at intervals in the circumferential direction. With such a configuration, it is possible to support a radially outward electromagnetic force applied to the superconducting winding,
By forming the cooling duct between the spacers adjacent in the circumferential direction, the cooling surface area of the superconducting winding is increased, and the cooling efficiency is improved.
【００１４】また、単一のコイルあるいは同軸に巻回さ
れた内側コイルおよび外側コイルを備え、前記単一のコ
イルあるいは前記内側コイルおよび外側コイルが円筒状
の絶縁材の外径側の溝に沿って超電導線材を巻回してな
る超電導巻線からなる誘導機器の超電導コイルにおい
て、前記単一のコイルあるいは前記外側コイルの超電導
巻線の外周側に半硬化状樹脂を塗布したテープを軸方向
全体にわたって巻回し硬化処理することとした。このよ
うな構成とすることにより、超電導巻線にかかる半径方
向に外向きの電磁力を硬化処理されたテープで支持する
ことができるとともに、最外径側の支持円筒が不要とな
り、簡素な構成となる。[0014] Further, there is provided a single coil or an inner coil and an outer coil wound coaxially, and the single coil or the inner coil and the outer coil are formed along a groove on an outer diameter side of a cylindrical insulating material. In a superconducting coil of an induction machine comprising a superconducting winding formed by winding a superconducting wire, a tape in which a semi-cured resin is applied to the outer periphery of the single coil or the superconducting winding of the outer coil is applied over the entire axial direction. It was wound and cured. By adopting such a configuration, a radially outward electromagnetic force applied to the superconducting winding can be supported by the hardened tape, and a support cylinder on the outermost diameter side is not required, which is a simple configuration. Becomes
【００１５】また、単一のコイルあるいは同軸に巻回さ
れた内側コイルおよび外側コイルを備え、前記単一のコ
イルあるいは前記内側コイルおよび外側コイルが円筒状
の絶縁材の外径側の溝に沿って超電導線材を巻回してな
る超電導巻線からなる誘導機器の超電導コイルにおい
て、前記単一のコイルあるいは前記外側コイルの超電導
巻線の前記溝に沿って前記超電導線材の外周側に樹脂を
塗布し硬化処理することとした。このような構成とする
ことにより、超電導巻線にかかる半径方向に外向きの電
磁力を硬化処理した樹脂で支持することができるととも
に、最外径側の支持円筒が不要となり、簡素な構成とな
る。また、この構成では、超電導線材を埋め込むための
溝の深さを超電導線材の厚さと等しくする必要がないこ
とから、超電導巻線の巻枠となる円筒状の絶縁材の溝加
工に厳密な寸法精度が要求されないため、製作コストの
点で有利となる。In addition, a single coil or an inner coil and an outer coil wound coaxially are provided, and the single coil or the inner coil and the outer coil are formed along a groove on an outer diameter side of a cylindrical insulating material. In a superconducting coil of an induction device comprising a superconducting winding formed by winding a superconducting wire, a resin is applied to the outer peripheral side of the superconducting wire along the groove of the single coil or the superconducting winding of the outer coil. A hardening treatment was performed. By adopting such a configuration, it is possible to support the radially outward electromagnetic force applied to the superconducting winding with the cured resin, and the need for a support cylinder on the outermost diameter side is eliminated, so that a simple configuration and Become. Further, in this configuration, since it is not necessary to make the depth of the groove for embedding the superconducting wire equal to the thickness of the superconducting wire, strict dimensions are required for machining the groove of the cylindrical insulating material which becomes the winding frame of the superconducting winding. Since no precision is required, it is advantageous in terms of manufacturing cost.
【００１６】また、単一のコイルあるいは同軸に巻回さ
れた内側コイルおよび外側コイルを備え、前記単一のコ
イルあるいは前記内側コイルおよび外側コイルが円筒状
の絶縁材の外径側の溝に沿って超電導線材を巻回してな
る超電導巻線からなる誘導機器の超電導コイルにおい
て、前記単一のコイルあるいは前記外側コイルの超電導
巻線の前記溝に沿って前記超電導線材の外周側に樹脂を
塗布し、その外周側に半硬化状樹脂を塗布したテープを
軸方向全体にわたって巻回し硬化処理することとした。
このような構成とすることにより、超電導巻線にかかる
半径方向に外向きの電磁力が硬化処理した樹脂とその外
周側のテープとの両方で支持されるので、電磁力に対す
るより強固な支持構造となる。In addition, a single coil or an inner coil and an outer coil wound coaxially are provided, and the single coil or the inner coil and the outer coil are arranged along a groove on an outer diameter side of a cylindrical insulating material. In a superconducting coil of an induction device comprising a superconducting winding formed by winding a superconducting wire, a resin is applied to the outer peripheral side of the superconducting wire along the groove of the single coil or the superconducting winding of the outer coil. Then, a tape having a semi-cured resin applied to the outer peripheral side thereof is wound around the entirety in the axial direction and cured.
With such a configuration, a radially outward electromagnetic force applied to the superconducting winding is supported by both the cured resin and the tape on the outer peripheral side thereof, so a stronger support structure for the electromagnetic force Becomes
【００１７】また、単一のコイルあるいは同軸に巻回さ
れた内側コイルおよび外側コイルを備え、前記単一のコ
イルあるいは前記内側コイルおよび外側コイルが円筒状
の絶縁材の外径側の溝に沿って超電導線材を巻回してな
る超電導巻線からなる誘導機器の超電導コイルにおい
て、前記単一のコイルあるいは前記外側コイルの超電導
巻線の前記溝に沿って前記超電導線材の外周側に樹脂を
塗布し、その外周側に周方向に間隔をあけてスペーサを
設置し、該スペーサの外周に半硬化状樹脂を塗布したテ
ープを軸方向全体にわたって巻回し硬化処理することと
した。このような構成とすることによっても、超電導巻
線にかかる半径方向に外向きの電磁力が硬化処理した樹
脂とその外周側のテープとの両方で支持されるので、電
磁力に対するより強固な支持構造となる。In addition, a single coil or an inner coil and an outer coil wound coaxially are provided, and the single coil or the inner coil and the outer coil are formed along a groove on an outer diameter side of a cylindrical insulating material. In a superconducting coil of an induction device comprising a superconducting winding formed by winding a superconducting wire, a resin is applied to the outer peripheral side of the superconducting wire along the groove of the single coil or the superconducting winding of the outer coil. Spacers are provided on the outer peripheral side of the spacer at intervals in the circumferential direction, and a tape having a semi-cured resin applied to the outer periphery of the spacer is wound around the entire axial direction and cured. Even with such a configuration, the radially outward electromagnetic force applied to the superconducting winding is supported by both the cured resin and the tape on the outer peripheral side thereof, so that a stronger support for the electromagnetic force is provided. Structure.
【００１８】また、単一のコイルあるいは同軸に巻回さ
れた内側コイルおよび外側コイルを備え、前記単一のコ
イルあるいは前記内側コイルおよび外側コイルが円筒状
の絶縁材の外径側の溝に沿って超電導線材を巻回してな
る超電導巻線からなる誘導機器の超電導コイルにおい
て、前記超電導線材と同等の幅を有する半硬化状樹脂を
塗布したテープを前記単一のコイルあるいは前記外側コ
イルの超電導巻線の前記溝に沿って前記超電導線材の外
周側に巻回し硬化処理することとした。このような構成
とすることにより、超電導巻線にかかる半径方向に外向
きの電磁力が硬化処理したテープで支持することができ
るとともに、最外径側の支持円筒が不要となり、簡素な
構成となる。また、この構成では、超電導線材を埋め込
むための溝の深さを超電導線材の厚さと等しくする必要
がないことから、超電導巻線の巻枠となる円筒状の絶縁
材の溝加工に厳密な寸法精度が要求されないため、製作
コストの点で有利となる。In addition, a single coil or an inner coil and an outer coil wound coaxially are provided, and the single coil or the inner coil and the outer coil are arranged along a groove on an outer diameter side of a cylindrical insulating material. In a superconducting coil of an induction device comprising a superconducting winding formed by winding a superconducting wire, a tape coated with a semi-cured resin having a width equivalent to that of the superconducting wire is applied to the single coil or the superconducting winding of the outer coil. The wire is wound around the superconducting wire along the groove of the wire and hardened. With such a configuration, the radially outward electromagnetic force applied to the superconducting winding can be supported by the hardened tape, and the support cylinder on the outermost diameter side is not required. Become. Further, in this configuration, since it is not necessary to make the depth of the groove for embedding the superconducting wire equal to the thickness of the superconducting wire, strict dimensions are required for machining the groove of the cylindrical insulating material which becomes the winding frame of the superconducting winding. Since no precision is required, it is advantageous in terms of manufacturing cost.
【００１９】また、単一のコイルあるいは同軸に巻回さ
れた内側コイルおよび外側コイルを備え、前記単一のコ
イルあるいは前記内側コイルおよび外側コイルが円筒状
の絶縁材の外径側の溝に沿って超電導線材を巻回してな
る超電導巻線からなる誘導機器の超電導コイルにおい
て、前記超電導線材と同等の幅を有する半硬化状樹脂を
塗布した第１のテープを前記単一のコイルあるいは前記
外側コイルの超電導巻線の前記溝に沿って前記超電導線
材の外周側に巻回し、その外周側に半硬化状樹脂を塗布
した第２のテープを軸方向全体にわたって巻回し硬化処
理することとした。このような構成とすることにより、
超電導巻線にかかる半径方向に外向きの電磁力が硬化処
理した第１のテープとその外周側の第２のテープとの両
方で支持されるので、電磁力に対するより強固な支持構
造となる。In addition, a single coil or an inner coil and an outer coil wound coaxially are provided, and the single coil or the inner coil and the outer coil are formed along a groove on an outer diameter side of a cylindrical insulating material. In a superconducting coil of an induction machine comprising a superconducting winding formed by winding a superconducting wire, a first tape coated with a semi-cured resin having a width equivalent to that of the superconducting wire is applied to the single coil or the outer coil. The superconducting wire is wound around the outer periphery of the superconducting wire along the groove, and a second tape having a semi-cured resin applied to the outer periphery thereof is wound around the entirety in the axial direction and cured. With such a configuration,
Since the radially outward electromagnetic force applied to the superconducting winding is supported by both the hardened first tape and the second tape on the outer peripheral side thereof, a stronger support structure for the electromagnetic force is obtained.
【００２０】また、単一のコイルあるいは同軸に巻回さ
れた内側コイルおよび外側コイルを備え、前記単一のコ
イルあるいは前記内側コイルおよび外側コイルが円筒状
の絶縁材の外径側の溝に沿って超電導線材を巻回してな
る超電導巻線からなる誘導機器の超電導コイルにおい
て、前記超電導線材と同等の幅を有する半硬化状樹脂を
塗布した第１のテープを前記単一のコイルあるいは前記
外側コイルの超電導巻線の前記溝に沿って前記超電導線
材の外周側に巻回し、その外周側に周方向に間隔をあけ
てスペーサを設置し、該スペーサの外周に半硬化状樹脂
を塗布した第２のテープを軸方向全体にわたって巻回し
硬化処理することとした。このような構成とすることに
よっても、超電導巻線にかかる半径方向に外向きの電磁
力が硬化処理した第１のテープとその外周側の第２のテ
ープとの両方で支持されるので、電磁力に対するより強
固な支持構造となる。In addition, a single coil or an inner coil and an outer coil wound coaxially are provided, and the single coil or the inner coil and the outer coil are formed along an outer diameter groove of a cylindrical insulating material. In a superconducting coil of an induction machine comprising a superconducting winding formed by winding a superconducting wire, a first tape coated with a semi-cured resin having a width equivalent to that of the superconducting wire is applied to the single coil or the outer coil. The superconducting wire is wound around the outer periphery of the superconducting wire along the groove of the superconducting wire, spacers are provided on the outer periphery at intervals in the circumferential direction, and a semi-cured resin is applied to the outer periphery of the spacer. Was wound around the entirety in the axial direction and hardened. Even with such a configuration, the radially outward electromagnetic force applied to the superconducting winding is supported by both the hardened first tape and the second tape on the outer peripheral side thereof. A stronger support structure for the force.
【００２１】また、かかる構成において、前記テープが
ガラス繊維またはポリエステル繊維よりなることとし
た。このような構成とすることにより、前記テープを形
成するガラス繊維またはポリエステル繊維が優れた耐低
温特性を有するので、極低温で使用される超電導コイル
における電磁力に対する支持構造として十分な強度を有
するものとなる。Further, in such a configuration, the tape is made of glass fiber or polyester fiber. With such a configuration, the glass fiber or polyester fiber forming the tape has excellent low-temperature resistance characteristics, and therefore has sufficient strength as a support structure against electromagnetic force in a superconducting coil used at cryogenic temperatures. Becomes
【００２２】[0022]
【発明の実施の形態】図１は、本発明の第１の実施例を
示す変圧器のコイル構成図である。図１において、１
１，１１１はスペーサ、１２は支持円筒であり、その他
の構成要素は図１５と同じであり同じ符号を付してあ
る。図１５との相違点は、外側コイル３のさらに外周側
に支持円筒１２を設置し、外側コイル３の内径側巻線３
１と外径側巻線３２との間、および外径側巻線３２と支
持円筒１２との間にそれぞれスペーサ１１，１１１を挿
入した点である。この構成とすることにより、外側コイ
ル（高圧巻線）３にかかる半径方向に外向きの力を支持
することができる。FIG. 1 is a diagram showing a coil configuration of a transformer according to a first embodiment of the present invention. In FIG. 1, 1
Reference numerals 1 and 111 denote spacers, reference numeral 12 denotes a support cylinder, and other components are the same as those in FIG. 15 is different from FIG. 15 in that the support cylinder 12 is provided on the outer peripheral side of the outer coil 3 and the inner coil 3
1 and the outer diameter side winding 32, and between the outer diameter side winding 32 and the support cylinder 12, spacers 11 and 111 are inserted. With this configuration, a radial outward force applied to the outer coil (high-voltage winding) 3 can be supported.
【００２３】図２は、図１の外側コイルの拡大断面図で
ある。図２において、超電導線材５は、絶縁材料からな
る巻枠４，４１の外径側に設けられた溝に沿って巻回さ
れている。２層からなる巻線３１，３２間に絶縁材料か
らなるスペーサ１１を挿入し、内径側巻線３１にかかる
力を支持する。最外径側に設置した支持円筒１２と外径
側巻線３２との間に同様にスペーサ１１１を挿入するこ
とにより、外径側巻線３２にかかる力を支持する構造と
なっている。FIG. 2 is an enlarged sectional view of the outer coil of FIG. In FIG. 2, superconducting wire 5 is wound along a groove provided on the outer diameter side of winding frames 4 and 41 made of an insulating material. The spacer 11 made of an insulating material is inserted between the two-layered windings 31 and 32 to support the force applied to the inner diameter side winding 31. By similarly inserting a spacer 111 between the support cylinder 12 installed on the outermost diameter side and the outer diameter side winding 32, the force applied to the outer diameter side winding 32 is supported.
【００２４】図３は、図２の外側コイルの中心軸に垂直
な断面図である。図３において、巻枠４，４１の外周側
には、円周方向に１か所以上の溝すなわち冷却ダクト
６，６１が設けてあり、冷却冷媒である液体窒素が流入
できる構造となっている。これは、定常時において交流
を通電した際に発生する交流損失による発熱を冷却する
ためのものである。FIG. 3 is a sectional view perpendicular to the central axis of the outer coil of FIG. In FIG. 3, one or more grooves, that is, cooling ducts 6 and 61 are provided in the outer peripheral side of the winding frames 4 and 41 in the circumferential direction, so that liquid nitrogen as a cooling refrigerant can flow therein. . This is for cooling heat generated by AC loss generated when AC is supplied in a steady state.
【００２５】なお、図１ないし図３で示した第１の実施
例では、外側コイルが２層の超電導巻線を半径方向に重
ねて形成される構成について説明したが、外側コイル３
が１層の超電導巻線から形成される構成にも本発明は適
用可能であり、最外径側に設置した支持円筒と、外側コ
イルの超電導巻線との間にスペーサを挿入することによ
り、外側コイルの超電導巻線にかかる半径方向に外向き
の力を支持することができる。In the first embodiment shown in FIGS. 1 to 3, the outer coil is formed by superposing two layers of superconducting windings in the radial direction.
The present invention is also applicable to a configuration in which a single-layer superconducting winding is formed, and by inserting a spacer between the supporting cylinder installed on the outermost diameter side and the superconducting winding of the outer coil, A radially outward force on the superconducting winding of the outer coil can be supported.
【００２６】図４は、図３とは異なる別の実施例を示す
断面図であり、図５は、図３とは異なるさらに別の実施
例を示す断面図である。このようにすれば、さらに冷却
表面積を増加することができ、冷却効率を向上すること
ができる。図４は、スペーサ１１，１１１を２以上の複
数のスペーサ１１Ａ，１１１Ａに分割し、間隔をあけて
配置したものである。この構成にすれば、スペーサ１１
Ａ，１１１Ａのそれぞれ隣接するもの同士の間の間隔が
冷却ダクト６２，６３となるので、図３の実施例に比べ
超電導線材５が冷媒に接する面積が大きくなる。さら
に、スペーサ１１Ａ，１１１Ａの周方向の配置を図５に
示すように、冷却ダクト６２，６３の周方向位置と巻枠
４，４１に溝加工された冷却ダクト６，６１の周方向位
置とが互い違いになるように配置することにより、超電
導線材５の冷却される箇所を分散することができる。FIG. 4 is a sectional view showing another embodiment different from FIG. 3, and FIG. 5 is a sectional view showing still another embodiment different from FIG. By doing so, the cooling surface area can be further increased, and the cooling efficiency can be improved. FIG. 4 shows a structure in which the spacers 11 and 111 are divided into two or more spacers 11A and 111A and are arranged at intervals. With this configuration, the spacer 11
Since the spacing between adjacent ones of A and 111A is cooling ducts 62 and 63, the area where superconducting wire 5 is in contact with the refrigerant is larger than in the embodiment of FIG. Further, as shown in FIG. 5, the circumferential positions of the spacers 11A and 111A are such that the circumferential positions of the cooling ducts 62 and 63 and the circumferential positions of the cooling ducts 6 and 61 grooved in the winding frames 4 and 41 are different. By arranging the superconducting wires 5 alternately, the cooled portions of the superconducting wire 5 can be dispersed.
【００２７】図６は、本発明の第２の実施例を示す変圧
器の外側コイルの拡大断面図である。図６において、１
３は半硬化状樹脂含浸ガラスバインドテープ（以下では
「ガラスバインドテープ」と称する）であり、その他の
構成要素は図２と同じであり同じ符号を付してある。巻
線３１，３２間および外径側巻線３２と支持円筒１２と
の間にスペーサを配置するかわりに、半硬化状のガラス
バインドテープ１３を巻線３１，３２の外周に巻線全
体、すなわち軸方向全体にわたって１層以上巻回して硬
化処理したものである。巻線３１，３２にかかる外向き
の電磁力は、硬化処理させたガラスバインドテープ１３
で支持することとなる。図２の実施例に比較して、最外
径側の支持円筒が不要となり、簡便な構成とすることが
できる。FIG. 6 is an enlarged sectional view of an outer coil of a transformer according to a second embodiment of the present invention. In FIG. 6, 1
Reference numeral 3 denotes a semi-cured resin-impregnated glass bind tape (hereinafter, referred to as "glass bind tape"), and other components are the same as those in FIG. Instead of arranging a spacer between the windings 31 and 32 and between the outer diameter winding 32 and the support cylinder 12, a semi-cured glass bind tape 13 is applied around the windings 31 and 32, that is, the entire winding, that is, One or more layers are wound along the entire axial direction and cured. The outward electromagnetic force applied to the windings 31 and 32 is applied to the hardened glass bind tape 13.
It will be supported by. As compared with the embodiment of FIG. 2, a support cylinder on the outermost diameter side is not required, and a simple configuration can be achieved.
【００２８】なお、上記の半硬化状のガラスバインドテ
ープは、ガラス繊維よりなるテープに半硬化状樹脂を塗
布して形成されたものであり、ガラス繊維の有する優れ
た耐低温特性により極低温で使用可能な特性を有する。
このテープの素材としてガラス繊維の代わりにポリエス
テル繊維等の他の優れた耐低温特性を有する繊維を用い
てもよい。図７は、図６の外側コイルの中心軸に垂直な
断面図である。The above-mentioned semi-cured glass bind tape is formed by applying a semi-cured resin to a tape made of glass fiber. Has usable properties.
As the material of this tape, other fibers having excellent low-temperature resistance such as polyester fibers may be used instead of glass fibers. FIG. 7 is a sectional view perpendicular to the central axis of the outer coil of FIG.
【００２９】なお、図２や図６に示す実施例の場合、外
向きの力を支持するためには、超電導線材５がスペーサ
１１，１１１あるいはガラスバインドテープ１３と直接
接する必要があり、超電導線材５を埋め込むための巻枠
４，４１の溝深さは超電導線材５の厚さと等しくする必
要があり、溝加工時における溝深さに寸法精度が要求さ
れる。In the case of the embodiment shown in FIGS. 2 and 6, the superconducting wire 5 needs to be in direct contact with the spacers 11, 111 or the glass binding tape 13 in order to support the outward force. The groove depth of the winding frames 4 and 41 for embedding the groove 5 needs to be equal to the thickness of the superconducting wire 5, and dimensional accuracy is required for the groove depth during groove processing.
【００３０】図８は、本発明の第３の実施例を示す変圧
器の外側コイルの拡大断面図である。図８において、１
４はエポキシ樹脂であり、その他の構成要素は図２と同
じであり同じ符号を付してある。巻線３１，３２間およ
び外径側巻線３２と支持円筒１２との間にスペーサを配
置するかわりに、溝加工された円筒状の巻枠４Ａ，４１
Ａに超電導線材５を巻回し、巻枠４Ａ，４１Ａとの接触
部にエポキシ樹脂１４を塗布して硬化させたものであ
る。FIG. 8 is an enlarged sectional view of an outer coil of a transformer according to a third embodiment of the present invention. In FIG. 8, 1
Reference numeral 4 denotes an epoxy resin, and other components are the same as those in FIG. 2 and are denoted by the same reference numerals. Instead of disposing a spacer between the windings 31 and 32 and between the outer diameter side winding 32 and the support cylinder 12, a grooved cylindrical winding frame 4A, 41 is used.
A is obtained by winding the superconducting wire 5 around A, applying the epoxy resin 14 to the contact portions with the winding frames 4A and 41A, and curing the resin.
【００３１】図９は、図８の外側コイルの中心軸に垂直
な断面図である。本実施例の場合、前述したような超電
導線材５を埋め込むための巻枠４Ａ，４１Ａの溝深さ
は、超電導線材５の厚さと等しくする必要はなく、あら
かじめ超電導線材５の厚さより深く溝加工しておき、余
った部分にエポキシ樹脂１４を塗布すればよい。従っ
て、巻枠４Ａ，４１Ａの溝加工に厳密な寸法精度を要求
する必要はなく、コスト的に有利となる。FIG. 9 is a sectional view perpendicular to the center axis of the outer coil of FIG. In the case of the present embodiment, the groove depth of the winding frames 4A and 41A for embedding the superconducting wire 5 as described above does not need to be equal to the thickness of the superconducting wire 5, and the groove is formed deeper than the thickness of the superconducting wire 5 in advance. Then, the epoxy resin 14 may be applied to the remaining portion. Therefore, it is not necessary to require strict dimensional accuracy for groove processing of the winding frames 4A and 41A, which is advantageous in cost.
【００３２】また、エポキシ樹脂１４を塗布するかわり
に、超電導線材５と同じ幅のガラスバインドテープを巻
枠４Ａ，４１Ａの溝に沿って超電導線材５の外周側に１
層以上巻回してもよい。Instead of applying the epoxy resin 14, a glass bind tape having the same width as that of the superconducting wire 5 is applied to the outer peripheral side of the superconducting wire 5 along the grooves of the winding frames 4A and 41A.
More than one layer may be wound.
【００３３】また、エポキシ樹脂は極低温でも十分な機
械的強度で使用可能なものあるが、エポキシ樹脂の代わ
りに、極低温でも十分な機械的強度で使用可能な他の樹
脂を用いてもよい。Although epoxy resins can be used with sufficient mechanical strength even at extremely low temperatures, other resins that can be used with sufficient mechanical strength even at extremely low temperatures may be used instead of epoxy resins. .
【００３４】なお、図８に示す第３の実施例の構成で
は、図２や図６に示す第１または第２の実施例に比較し
て、電磁力に対する支持力が低下し不十分となる場合が
ある。このような場合には、以下のようにすればよい。In the configuration of the third embodiment shown in FIG. 8, the supporting force against the electromagnetic force is reduced and becomes insufficient as compared with the first or second embodiment shown in FIGS. There are cases. In such a case, the following may be performed.
【００３５】図１０は、本発明の第４の実施例を示す変
圧器の外側コイルの拡大断面図である。図１０におい
て、１５および１６はガラスバインドテープであり、そ
の他の構成要素は図２と同じであり同じ符号を付してあ
る。溝加工された円筒状の巻枠４Ａ，４１Ａに超電導線
材５を巻回し、超電導線材５と同じ幅のガラスバインド
テープ１５を巻枠４Ａ，４１Ａの溝に沿って超電導線材
５の外径側に１層以上巻回し、さらにその外周側に巻線
全体、すなわち、軸方向全体にわたってガラスバインド
テープ１６を１層以上巻回し、硬化処理することにより
一体成形する。このガラスバインドテープ１５および１
６により電磁力を支持する。FIG. 10 is an enlarged sectional view of an outer coil of a transformer according to a fourth embodiment of the present invention. In FIG. 10, reference numerals 15 and 16 denote glass binding tapes, and other components are the same as those in FIG. The superconducting wire 5 is wound around the grooved cylindrical winding frames 4A and 41A, and a glass bind tape 15 having the same width as the superconducting wire 5 is applied to the outer diameter side of the superconducting wire 5 along the grooves of the winding frames 4A and 41A. One or more layers are wound, and one or more layers of the glass bind tape 16 are further wound around the outer periphery of the winding, that is, over the entire axial direction, and are integrally molded by hardening. This glass bind tape 15 and 1
6 supports the electromagnetic force.
【００３６】なお、ガラスバインドテープ１５を巻回す
るかわりに、巻枠４Ａ，４１Ａの溝に沿って超電導線材
５の外径側にエポキシ樹脂を塗布してもよい。図１１
は、図１０の外側コイルの中心軸に垂直な断面図であ
る。Instead of winding the glass bind tape 15, an epoxy resin may be applied to the outer diameter side of the superconducting wire 5 along the grooves of the winding frames 4A and 41A. FIG.
FIG. 11 is a sectional view perpendicular to the center axis of the outer coil of FIG. 10.
【００３７】図１１と図９とを比較すれば分かるよう
に、本実施例は電磁力に対する強固な支持構造となって
いる。As can be seen by comparing FIG. 11 and FIG. 9, this embodiment has a strong support structure against electromagnetic force.
【００３８】図１２は、本発明の第５の実施例を示す変
圧器の外側コイルの拡大断面図である。図１２におい
て、１７，１７１はスペーサ、１８はガラスバインドテ
ープ、１９はエポキシ樹脂またはガラスバインドテープ
であり、その他の構成要素は図２と同じであり同じ符号
を付してある。図１３は、図１２の外側コイルの中心軸
に垂直な断面図である。FIG. 12 is an enlarged sectional view of an outer coil of a transformer according to a fifth embodiment of the present invention. 12, reference numerals 17 and 171 denote spacers, reference numeral 18 denotes a glass binding tape, reference numeral 19 denotes an epoxy resin or glass binding tape, and other components are the same as those in FIG. FIG. 13 is a cross-sectional view perpendicular to the center axis of the outer coil of FIG.
【００３９】巻枠４Ａ，４１Ａの溝に沿って超電導線材
５の外径側にエポキシ樹脂または超電導線材５と同じ幅
のガラスバインドテープ１９を塗布または巻回し、更に
その外径側に周方向に間隔をおいてスペーサ１７，１７
１を設置し、更にその外径側にガラスバインドテープ１
８を巻線全体、すなわち、軸方向全体にわたって１層以
上巻回して硬化処理を行う。An epoxy resin or a glass bind tape 19 having the same width as that of the superconducting wire 5 is applied or wound along the outer diameter side of the superconducting wire 5 along the grooves of the winding frames 4A and 41A, and is further circumferentially applied to the outer diameter side. Spacers 17, 17 at intervals
1 and glass bind tape 1
The hardening process is performed by winding one or more layers over the entire winding, that is, the entire axial direction.
【００４０】図１０および図１１で示した実施例では、
巻線の外側全体をガラスバインドテープ１６で覆ってし
まうため、超電導線材５に接している液体窒素が交流損
失による発熱のために蒸発して発生した窒素ガスは、巻
枠４Ａ，４１Ａの外周側に形成された冷却ダクト６Ａ，
６１Ａに沿って上方向に抜けて行かざるを得ない。ま
た、冷却ダクト６Ａ，６１Ａ内の液体窒素は全て高さ方
向の最下側より流入することとなる。従って、交流損失
が増大すると、上部の巻線ほど冷却が悪くなる可能性も
ある。これに対して、図１２および図１３に示した構成
では、巻線全体を覆うガラスバインドテープ１８と冷却
ダクト６Ａ，６１Ａとの間にスペースがあるため、蒸発
したガスは巻線の外径側に抜けて行くことも可能とな
る。また、全てのターン間で液体窒素の冷却ダクト６
Ａ，６１Ａへの流入・流出が自由になるため、高さ方向
において上部巻線の冷却が悪くなることはない。さら
に、最外径側のガラスバインドテープ１８にて巻線全体
を覆っているため、図１０に示した実施例と同様の強固
な電磁力支持構造となる。In the embodiment shown in FIGS. 10 and 11,
Since the entire outside of the winding is covered with the glass bind tape 16, the nitrogen gas generated by evaporating the liquid nitrogen in contact with the superconducting wire 5 due to the heat generation due to the AC loss is generated on the outer peripheral side of the winding frames 4A and 41A. Cooling duct 6A formed in
I have to escape upward along 61A. In addition, all of the liquid nitrogen in the cooling ducts 6A and 61A flows from the lowermost side in the height direction. Therefore, when the AC loss increases, the cooling of the upper winding may be worsened. On the other hand, in the configuration shown in FIGS. 12 and 13, since there is a space between the glass bind tape 18 covering the entire winding and the cooling ducts 6A and 61A, the evaporated gas is on the outer diameter side of the winding. It is also possible to go out. In addition, the cooling duct 6 for liquid nitrogen
Since the inflow and outflow to A and 61A are free, cooling of the upper winding in the height direction does not deteriorate. Further, since the entire winding is covered with the glass bind tape 18 on the outermost diameter side, a strong electromagnetic force supporting structure similar to the embodiment shown in FIG. 10 is obtained.
【００４１】スペーサ１７，１７１の材料としては、ス
テンレス等の高強度材料でもよいが、渦電流による損失
が発生するため、ＦＲＰ等の絶縁材料を使用したほうが
望ましい。As a material for the spacers 17 and 171, a high-strength material such as stainless steel may be used, but it is preferable to use an insulating material such as FRP because a loss due to eddy current occurs.
【００４２】なお、上述した各実施例では、本発明を同
軸に巻回された内側コイルおよび外側コイルを備えた変
圧器の超電導コイルに適用した構成について説明した
が、本発明は、変圧器以外のリアクトルなどの誘導機器
の超電導コイルにも適用することができる。単一のコイ
ルのみを備えたリアクトルにおいては、この単一のコイ
ルを形成する全ての超電導巻線に半径方向に外向きの電
磁力がかかるので、これら全ての超電導巻線に本発明の
ような電磁力対策を施す。In each of the embodiments described above, a configuration in which the present invention is applied to a superconducting coil of a transformer having an inner coil and an outer coil wound coaxially has been described. It can also be applied to superconducting coils of induction equipment such as reactors. In a reactor having only a single coil, all superconducting windings forming this single coil are subjected to an electromagnetic force outward in the radial direction. Take measures against electromagnetic force.
【００４３】[0043]
【発明の効果】本発明によれば、前述のように、単一の
コイルあるいは外側コイルの最外径側に支持円筒を具備
し、かつ、前記単一のコイルあるいは前記外側コイルの
超電導巻線と前記支持円筒間にスペーサを具備すること
によって、前述した短絡事故時に発生する過大な電磁力
による半径方向の力を支持することが可能となり、破損
を防止でき、機械的に安定な誘導機器の超電導コイルを
提供することができる。According to the present invention, as described above, the support cylinder is provided on the outermost diameter side of the single coil or the outer coil, and the superconducting winding of the single coil or the outer coil is provided. By providing a spacer between the support cylinder and the support cylinder, it is possible to support a radial force due to excessive electromagnetic force generated at the time of the short circuit accident described above, it is possible to prevent breakage, mechanically stable induction device A superconducting coil can be provided.
【００４４】また、単一のコイルあるいは外側コイルの
最外径側に支持円筒を具備し、かつ、前記単一のコイル
あるいは前記外側コイルの超電導巻線間および最外径側
の超電導巻線と前記支持円筒間にスペーサを具備するこ
とによって、前述した短絡事故時に発生する過大な電磁
力による半径方向の力を支持することが可能となり、破
損を防止でき、機械的に安定な誘導機器の超電導コイル
を提供することができる。Further, a support cylinder is provided on the outermost diameter side of the single coil or the outer coil, and the support cylinder is provided between the superconducting windings of the single coil or the outer coil and the superconducting winding on the outermost diameter side. By providing a spacer between the supporting cylinders, it is possible to support a radial force due to an excessive electromagnetic force generated at the time of the above-described short-circuit accident, prevent breakage, and provide a mechanically stable superconducting device for an induction device. A coil can be provided.
【００４５】また、かかる構成において、前記スペーサ
が周方向に間隔をあけて設置されることによって、超電
導巻線の冷却表面積が増大し、冷却効率が向上する。In this configuration, the spacers are arranged at intervals in the circumferential direction, so that the cooling surface area of the superconducting winding is increased and the cooling efficiency is improved.
【００４６】また、単一のコイルあるいは外側コイルの
超電導巻線の外周側に半硬化状樹脂を塗布したテープを
軸方向全体にわたって巻回し硬化処理することによって
も、前述した短絡事故時に発生する過大な電磁力による
半径方向の力を支持することが可能となり、破損を防止
でき、機械的に安定な誘導機器の超電導コイルを提供す
ることができる。また、この構成では、最外径側の支持
円筒が不要となり、簡素な構成となる。Also, by winding a tape in which a semi-cured resin is applied to the outer periphery of the superconducting winding of a single coil or an outer coil over the entire axial direction and curing the same, an excessively large length of the above-mentioned short-circuit accident may occur. It is possible to support a radial force due to a strong electromagnetic force, prevent damage, and provide a mechanically stable superconducting coil for an induction device. Further, in this configuration, the support cylinder on the outermost diameter side is not required, and the configuration is simple.
【００４７】また、単一のコイルあるいは外側コイルの
超電導巻線の溝に沿って超電導線材の外周側に樹脂を塗
布し硬化処理することによっても、前述した短絡事故時
に発生する過大な電磁力による半径方向の力を支持する
ことが可能となり、破損を防止でき、機械的に安定な誘
導機器の超電導コイルを提供することができる。また、
この構成では、最外径側の支持円筒が不要となり、簡素
な構成となるとともに、超電導巻線の巻枠となる円筒状
の絶縁材の溝加工に厳密な寸法精度が要求されないた
め、製作コストの点で有利となる。Also, by applying a resin to the outer peripheral side of the superconducting wire along the groove of the superconducting winding of the single coil or the outer coil and curing the resin, the excessive electromagnetic force generated at the time of the above-mentioned short circuit accident can be obtained. It is possible to support a radial force, prevent breakage, and provide a mechanically stable superconducting coil for an induction device. Also,
This configuration eliminates the need for a support cylinder on the outermost diameter side, simplifies the configuration, and does not require strict dimensional accuracy for machining the cylindrical insulating material that forms the winding frame of the superconducting winding. This is advantageous in terms of
【００４８】また、単一のコイルあるいは外側コイルの
超電導巻線の溝に沿って超電導線材の外周側に樹脂を塗
布し、その外周側に半硬化状樹脂を塗布したテープを軸
方向全体にわたって巻回し硬化処理することによって
も、前述した短絡事故時に発生する過大な電磁力による
半径方向の力を支持することが可能となり、破損を防止
でき、機械的に安定な誘導機器の超電導コイルを提供す
ることができる。また、この構成では、半径方向に外向
きの電磁力が硬化処理した樹脂とその外周側のテープと
の両方で支持されるので、電磁力に対するより強固な支
持構造となる。Further, a resin is applied to the outer peripheral side of the superconducting wire along the groove of the superconducting winding of the single coil or the outer coil, and a tape in which a semi-cured resin is applied to the outer peripheral side is wound over the entire axial direction. By rotating and hardening, it is possible to support the radial force due to the excessive electromagnetic force generated at the time of the above-described short circuit accident, prevent breakage, and provide a mechanically stable superconducting coil for induction equipment. be able to. Further, in this configuration, since the electromagnetic force outward in the radial direction is supported by both the cured resin and the tape on the outer peripheral side thereof, a stronger support structure for the electromagnetic force is obtained.
【００４９】また、単一のコイルあるいは外側コイルの
超電導巻線の溝に沿って超電導線材の外周側に樹脂を塗
布し、その外周側に周方向に間隔をあけてスペーサを設
置し、該スペーサの外周に半硬化状樹脂を塗布したテー
プを軸方向全体にわたって巻回し硬化処理することによ
っても、前述した短絡事故時に発生する過大な電磁力に
よる半径方向の力を支持することが可能となり、破損を
防止でき、機械的に安定な誘導機器の超電導コイルを提
供することができる。また、この構成でも、半径方向に
外向きの電磁力が硬化処理した樹脂とその外周側のテー
プとの両方で支持されるので、電磁力に対するより強固
な支持構造となる。Further, a resin is applied to the outer peripheral side of the superconducting wire along the groove of the superconducting winding of the single coil or the outer coil, and a spacer is provided on the outer peripheral side at intervals in the circumferential direction. By winding the tape with semi-cured resin applied around the entire circumference in the axial direction and curing it, it is possible to support the radial force due to the excessive electromagnetic force generated at the time of the short circuit accident described above, and breakage And a superconducting coil of a mechanically stable induction device can be provided. Also in this configuration, since the electromagnetic force outward in the radial direction is supported by both the cured resin and the tape on the outer peripheral side, a stronger support structure against the electromagnetic force is obtained.
【００５０】また、超電導線材と同等の幅を有する半硬
化状樹脂を塗布したテープを単一のコイルあるいは外側
コイルの超電導巻線の溝に沿って前記超電導線材の外周
側に巻回し硬化処理することによっても、前述した短絡
事故時に発生する過大な電磁力による半径方向の力を支
持することが可能となり、破損を防止でき、機械的に安
定な誘導機器の超電導コイルを提供することができる。
また、この構成では、最外径側の支持円筒が不要とな
り、簡素な構成となるとともに、超電導巻線の巻枠とな
る円筒状の絶縁材の溝加工に厳密な寸法精度が要求され
ないため、製作コストの点で有利となる。Further, a tape coated with a semi-cured resin having a width equivalent to that of the superconducting wire is wound around the outer periphery of the superconducting wire along the groove of the superconducting winding of the single coil or the outer coil, and is cured. This also makes it possible to support a radial force due to an excessive electromagnetic force generated at the time of the above-described short circuit accident, prevent breakage, and provide a mechanically stable superconducting coil for an induction device.
In addition, in this configuration, the outermost diameter support cylinder is not required, and the configuration becomes simple.Since strict dimensional accuracy is not required for the groove processing of the cylindrical insulating material serving as the winding frame of the superconducting winding, This is advantageous in terms of manufacturing costs.
【００５１】また、超電導線材と同等の幅を有する半硬
化状樹脂を塗布した第１のテープを単一のコイルあるい
は外側コイルの超電導巻線の溝に沿って前記超電導線材
の外周側に巻回し、その外周側に半硬化状樹脂を塗布し
た第２のテープを軸方向全体にわたって巻回し硬化処理
することによっても、前述した短絡事故時に発生する過
大な電磁力による半径方向の力を支持することが可能と
なり、破損を防止でき、機械的に安定な誘導機器の超電
導コイルを提供することができる。また、この構成で
は、半径方向に外向きの電磁力が硬化処理した第１のテ
ープとその外周側の第２のテープとの両方で支持される
ので、電磁力に対するより強固な支持構造となる。A first tape coated with a semi-cured resin having a width equivalent to that of the superconducting wire is wound around the superconducting wire along the groove of the superconducting winding of the single coil or the outer coil. By supporting a semi-cured resin coated on the outer peripheral side of the second tape in the entire axial direction and curing the second tape, the radial force due to the excessive electromagnetic force generated at the time of the above-described short circuit accident can be supported. This makes it possible to provide a superconducting coil of an induction device which can prevent breakage and is mechanically stable. Further, in this configuration, the electromagnetic force outward in the radial direction is supported by both the hardened first tape and the second tape on the outer peripheral side thereof, so that a stronger support structure against the electromagnetic force is obtained. .
【００５２】また、超電導線材と同等の幅を有する半硬
化状樹脂を塗布した第１のテープを単一のコイルあるい
は外側コイルの超電導巻線の溝に沿って前記超電導線材
の外周側に巻回し、その外周側に周方向に間隔をあけて
スペーサを設置し、該スペーサの外周に半硬化状樹脂を
塗布した第２のテープを軸方向全体にわたって巻回し硬
化処理することによっても、前述した短絡事故時に発生
する過大な電磁力による半径方向の力を支持することが
可能となり、破損を防止でき、機械的に安定な誘導機器
の超電導コイルを提供することができる。また、この構
成でも、半径方向に外向きの電磁力が硬化処理した第１
のテープとその外周側の第２のテープとの両方で支持さ
れるので、電磁力に対するより強固な支持構造となる。A first tape coated with a semi-cured resin having a width equivalent to that of the superconducting wire is wound around the outer periphery of the superconducting wire along the groove of the superconducting winding of the single coil or the outer coil. The above-described short circuit can also be achieved by disposing a spacer on the outer peripheral side of the spacer at intervals in the circumferential direction, winding a second tape coated with semi-cured resin on the outer periphery of the spacer over the entire axial direction, and performing a curing treatment. It is possible to support a radial force due to an excessive electromagnetic force generated at the time of an accident, prevent damage, and provide a mechanically stable superconducting coil for an induction device. Also in this configuration, the first electromagnetic force hardened by the outward electromagnetic force in the radial direction is used.
Is supported by both the tape and the second tape on the outer peripheral side, so that a stronger support structure against electromagnetic force is obtained.
【００５３】また、かかる構成において、前記テープが
ガラス繊維またはポリエステル繊維よりなるものとする
ことによって、極低温で使用される超電導コイルにおけ
る電磁力に対する支持構造として十分な強度を有するも
のとなる。Further, in this configuration, when the tape is made of glass fiber or polyester fiber, the superconducting coil used at cryogenic temperature has sufficient strength as a support structure against electromagnetic force.
【図１】本発明の第１の実施例を示す変圧器のコイル構
成図。FIG. 1 is a coil configuration diagram of a transformer according to a first embodiment of the present invention.
【図２】図１の外側コイルの拡大断面図。FIG. 2 is an enlarged sectional view of an outer coil of FIG.
【図３】図２の外側コイルの中心軸に垂直な断面図。FIG. 3 is a sectional view perpendicular to the center axis of the outer coil of FIG. 2;
【図４】図３とは異なる別の実施例をしめす断面図。FIG. 4 is a sectional view showing another embodiment different from FIG. 3;
【図５】図３とは異なるさらに別の実施例をしめす断面
図。FIG. 5 is a sectional view showing still another embodiment different from FIG. 3;
【図６】本発明の第２の実施例を示す変圧器の外側コイ
ルの拡大断面図。FIG. 6 is an enlarged sectional view of an outer coil of a transformer according to a second embodiment of the present invention.
【図７】図６の外側コイルの中心軸に垂直な断面図。FIG. 7 is a sectional view perpendicular to the central axis of the outer coil of FIG. 6;
【図８】本発明の第３の実施例を示す変圧器の外側コイ
ルの拡大断面図。FIG. 8 is an enlarged sectional view of an outer coil of a transformer showing a third embodiment of the present invention.
【図９】図８の外側コイルの中心軸に垂直な断面図。FIG. 9 is a cross-sectional view perpendicular to the center axis of the outer coil of FIG. 8;
【図１０】本発明の第４の実施例を示す変圧器の外側コ
イルの拡大断面図。FIG. 10 is an enlarged sectional view of an outer coil of a transformer according to a fourth embodiment of the present invention.
【図１１】図１０の外側コイルの中心軸に垂直な断面
図。FIG. 11 is a sectional view perpendicular to the center axis of the outer coil of FIG. 10;
【図１２】本発明の第５の実施例を示す変圧器の外側コ
イルの拡大断面図。FIG. 12 is an enlarged sectional view of an outer coil of a transformer according to a fifth embodiment of the present invention.
【図１３】図１２の外側コイルの中心軸に垂直な断面
図。FIG. 13 is a sectional view perpendicular to the center axis of the outer coil of FIG. 12;
【図１４】従来技術による変圧器のコイル構成図。FIG. 14 is a coil configuration diagram of a transformer according to the related art.
【図１５】図１４とは異なる従来技術による変圧器のコ
イル構成図。FIG. 15 is a coil configuration diagram of a transformer according to the related art different from FIG. 14;
【図１６】従来技術による超電導線材を用いた変圧器の
巻線構造図。FIG. 16 is a winding structure diagram of a transformer using a superconducting wire according to the related art.
【図１７】図１６のＡ−Ａ断面図。FIG. 17 is a sectional view taken along the line AA of FIG. 16;
１…鉄心、２…内側コイル、３…外側コイル、４，４
Ａ，４１，４１Ａ…巻枠、５…超電導線材、６，６Ａ，
６１，６１Ａ，６２，６３…冷却ダクト、１１，１１
Ａ，１１１，１１１Ａ，１７，１７１…スペーサ、１２
…支持円筒、１３，１５，１６，１８…ガラスバインド
テープ、１４…エポキシ樹脂、１９…エポキシ樹脂また
はガラスバインドテープ、３１…内径側巻線、３２…外
径側巻線。1 ... iron core, 2 ... inner coil, 3 ... outer coil, 4, 4
A, 41, 41A ... winding frame, 5 ... superconducting wire, 6, 6A,
61, 61A, 62, 63 ... cooling duct, 11, 11
A, 111, 111A, 17, 171 ... spacer, 12
... support cylinder, 13, 15, 16, 18 ... glass bind tape, 14 ... epoxy resin, 19 ... epoxy resin or glass bind tape, 31 ... inner diameter side winding, 32 ... outer diameter side winding.
───────────────────────────────────────────────────── フロントページの続き (72)発明者 伊藤 郁夫 神奈川県川崎市川崎区田辺新田１番１号 富士電機株式会社内 Ｆターム(参考） 5E044 CA02 CB09 CB10 ──────────────────────────────────────────────────続 き Continuation of the front page (72) Inventor Ikuo Ito 1-1-1, Tanabe-Nitta, Kawasaki-ku, Kawasaki-shi, Kanagawa F-term within Fuji Electric Co., Ltd. 5E044 CA02 CB09 CB10
Claims (11)
側コイルおよび外側コイルを備え、前記単一のコイルあ
るいは前記内側コイルおよび外側コイルが円筒状の絶縁
材の外径側の溝に沿って超電導線材を巻回してなる超電
導巻線からなる誘導機器の超電導コイルにおいて、前記
単一のコイルあるいは前記外側コイルの最外径側に支持
円筒を具備し、かつ、前記単一のコイルあるいは前記外
側コイルの超電導巻線と前記支持円筒間にスペーサを具
備したことを特徴とする誘導機器の超電導コイル。A single coil or an inner coil and an outer coil wound coaxially, wherein the single coil or the inner coil and the outer coil are formed along an outer diameter groove of a cylindrical insulating material. In a superconducting coil of an induction device comprising a superconducting winding formed by winding a superconducting wire, a supporting cylinder is provided on the outermost diameter side of the single coil or the outer coil, and the single coil or the single coil A superconducting coil for an induction machine, comprising a spacer between a superconducting winding of an outer coil and said support cylinder.
側コイルおよび外側コイルを備え、前記単一のコイルあ
るいは前記内側コイルおよび外側コイルが円筒状の絶縁
材の外径側の溝に沿って超電導線材を巻回してなる超電
導巻線からなるとともに、前記単一のコイルあるいは前
記外側コイルが前記超電導巻線を２層以上半径方向に重
ねて形成されてなる誘導機器の超電導コイルにおいて、
前記単一のコイルあるいは前記外側コイルの最外径側に
支持円筒を具備し、かつ、前記単一のコイルあるいは前
記外側コイルの超電導巻線間および最外径側の超電導巻
線と前記支持円筒間にスペーサを具備したことを特徴と
する誘導機器の超電導コイル。2. A single coil or coaxially wound inner and outer coils, wherein said single coil or said inner and outer coils extend along an outer diameter groove of a cylindrical insulating material. A superconducting coil formed by winding a superconducting wire, and wherein the single coil or the outer coil is formed by laminating the superconducting windings in two or more layers in the radial direction.
A support cylinder is provided on the outermost diameter side of the single coil or the outer coil, and between the single coil or the superconducting windings of the outer coil and the superconducting winding on the outermost diameter and the support cylinder A superconducting coil for an induction machine, comprising a spacer between the superconducting coils.
の誘導機器の超電導コイルにおいて、前記スペーサが周
方向に間隔をあけて設置されることを特徴とする誘導機
器の超電導コイル。3. A superconducting coil for an induction device according to claim 1, wherein said spacers are installed at intervals in a circumferential direction.
側コイルおよび外側コイルを備え、前記単一のコイルあ
るいは前記内側コイルおよび外側コイルが円筒状の絶縁
材の外径側の溝に沿って超電導線材を巻回してなる超電
導巻線からなる誘導機器の超電導コイルにおいて、前記
単一のコイルあるいは前記外側コイルの超電導巻線の外
周側に半硬化状樹脂を塗布したテープを軸方向全体にわ
たって巻回し硬化処理したことを特徴とする誘導機器の
超電導コイル。4. A single coil or an inner coil and an outer coil which are wound coaxially, wherein said single coil or said inner coil and the outer coil are formed along an outer diameter groove of a cylindrical insulating material. In a superconducting coil of an induction machine comprising a superconducting winding formed by winding a superconducting wire, a tape in which a semi-cured resin is applied to the outer periphery of the single coil or the superconducting winding of the outer coil is applied over the entire axial direction. A superconducting coil for an induction machine, which is wound and hardened.
側コイルおよび外側コイルを備え、前記単一のコイルあ
るいは前記内側コイルおよび外側コイルが円筒状の絶縁
材の外径側の溝に沿って超電導線材を巻回してなる超電
導巻線からなる誘導機器の超電導コイルにおいて、前記
単一のコイルあるいは前記外側コイルの超電導巻線の前
記溝に沿って前記超電導線材の外周側に樹脂を塗布し硬
化処理したことを特徴とする誘導機器の超電導コイル。5. A single coil or coaxially wound inner coil and outer coil, wherein said single coil or said inner coil and outer coil extend along an outer diameter groove of a cylindrical insulating material. In a superconducting coil of an induction device comprising a superconducting winding formed by winding a superconducting wire, a resin is applied to the outer peripheral side of the superconducting wire along the groove of the single coil or the superconducting winding of the outer coil. A superconducting coil for an induction machine, which has been cured.
側コイルおよび外側コイルを備え、前記単一のコイルあ
るいは前記内側コイルおよび外側コイルが円筒状の絶縁
材の外径側の溝に沿って超電導線材を巻回してなる超電
導巻線からなる誘導機器の超電導コイルにおいて、前記
単一のコイルあるいは前記外側コイルの超電導巻線の前
記溝に沿って前記超電導線材の外周側に樹脂を塗布し、
その外周側に半硬化状樹脂を塗布したテープを軸方向全
体にわたって巻回し硬化処理したことを特徴とする誘導
機器の超電導コイル。6. A single coil or an inner coil and an outer coil wound coaxially, wherein the single coil or the inner coil and the outer coil are formed along a groove on an outer diameter side of a cylindrical insulating material. In a superconducting coil of an induction device comprising a superconducting winding formed by winding a superconducting wire, a resin is applied to the outer peripheral side of the superconducting wire along the groove of the single coil or the superconducting winding of the outer coil. ,
A superconducting coil for an induction machine, characterized in that a tape having a semi-cured resin applied to its outer peripheral side is wound around the entirety in the axial direction and cured.
側コイルおよび外側コイルを備え、前記単一のコイルあ
るいは前記内側コイルおよび外側コイルが円筒状の絶縁
材の外径側の溝に沿って超電導線材を巻回してなる超電
導巻線からなる誘導機器の超電導コイルにおいて、前記
単一のコイルあるいは前記外側コイルの超電導巻線の前
記溝に沿って前記超電導線材の外周側に樹脂を塗布し、
その外周側に周方向に間隔をあけてスペーサを設置し、
該スペーサの外周に半硬化状樹脂を塗布したテープを軸
方向全体にわたって巻回し硬化処理したことを特徴とす
る誘導機器の超電導コイル。7. A single coil or coaxially wound inner and outer coils, wherein said single coil or said inner and outer coils extend along an outer diameter groove of a cylindrical insulating material. In a superconducting coil of an induction device comprising a superconducting winding formed by winding a superconducting wire, a resin is applied to the outer peripheral side of the superconducting wire along the groove of the single coil or the superconducting winding of the outer coil. ,
Spacers are installed on the outer peripheral side at intervals in the circumferential direction,
A superconducting coil for an induction machine, characterized in that a tape having a semi-cured resin applied to the outer periphery of the spacer is wound around the entire axis and cured.
側コイルおよび外側コイルを備え、前記単一のコイルあ
るいは前記内側コイルおよび外側コイルが円筒状の絶縁
材の外径側の溝に沿って超電導線材を巻回してなる超電
導巻線からなる誘導機器の超電導コイルにおいて、前記
超電導線材と同等の幅を有する半硬化状樹脂を塗布した
テープを前記単一のコイルあるいは前記外側コイルの超
電導巻線の前記溝に沿って前記超電導線材の外周側に巻
回し硬化処理したことを特徴とする誘導機器の超電導コ
イル。8. A single coil or an inner coil and an outer coil wound coaxially, wherein the single coil or the inner coil and the outer coil are formed along an outer-diameter groove of a cylindrical insulating material. In a superconducting coil of an induction device comprising a superconducting winding formed by winding a superconducting wire, a tape coated with a semi-cured resin having a width equivalent to that of the superconducting wire is applied to the single coil or the superconducting winding of the outer coil. A superconducting coil for an induction machine, wherein the superconducting coil is wound around the outer periphery of the superconducting wire along the groove of the wire and hardened.
側コイルおよび外側コイルを備え、前記単一のコイルあ
るいは前記内側コイルおよび外側コイルが円筒状の絶縁
材の外径側の溝に沿って超電導線材を巻回してなる超電
導巻線からなる誘導機器の超電導コイルにおいて、前記
超電導線材と同等の幅を有する半硬化状樹脂を塗布した
第１のテープを前記単一のコイルあるいは前記外側コイ
ルの超電導巻線の前記溝に沿って前記超電導線材の外周
側に巻回し、その外周側に半硬化状樹脂を塗布した第２
のテープを軸方向全体にわたって巻回し硬化処理したこ
とを特徴とする誘導機器の超電導コイル。9. A single coil or an inner coil and an outer coil wound coaxially, wherein the single coil or the inner coil and the outer coil are formed along an outer diameter groove of a cylindrical insulating material. In a superconducting coil of an induction machine comprising a superconducting winding formed by winding a superconducting wire, a first tape coated with a semi-cured resin having a width equivalent to that of the superconducting wire is applied to the single coil or the outer coil. A second winding in which a semi-cured resin is applied to the outer peripheral side of the superconducting wire rod along the groove of the superconducting winding
A superconducting coil for an induction machine, wherein the tape is wound and hardened over the entire axial direction.
内側コイルおよび外側コイルを備え、前記単一のコイル
あるいは前記内側コイルおよび外側コイルが円筒状の絶
縁材の外径側の溝に沿って超電導線材を巻回してなる超
電導巻線からなる誘導機器の超電導コイルにおいて、前
記超電導線材と同等の幅を有する半硬化状樹脂を塗布し
た第１のテープを前記単一のコイルあるいは前記外側コ
イルの超電導巻線の前記溝に沿って前記超電導線材の外
周側に巻回し、その外周側に周方向に間隔をあけてスペ
ーサを設置し、該スペーサの外周に半硬化状樹脂を塗布
した第２のテープを軸方向全体にわたって巻回し硬化処
理したことを特徴とする誘導機器の超電導コイル。10. A single coil or coaxially wound inner and outer coils, wherein said single coil or said inner and outer coils extend along an outer diameter groove of a cylindrical insulating material. In a superconducting coil of an induction machine comprising a superconducting winding formed by winding a superconducting wire, a first tape coated with a semi-cured resin having a width equivalent to that of the superconducting wire is applied to the single coil or the outer coil. The superconducting wire is wound around the outer periphery of the superconducting wire along the groove of the superconducting wire, spacers are provided on the outer periphery at intervals in the circumferential direction, and a semi-cured resin is applied to the outer periphery of the spacer. A superconducting coil for an induction machine, wherein the tape is wound and hardened over the entire axial direction.
０のいずれかに記載の誘導機器の超電導コイルにおい
て、前記テープがガラス繊維またはポリエステル繊維よ
りなることを特徴とする誘導機器の超電導コイル。11. The invention as defined in claim 4 and claims 6 to 1.
0. The superconducting coil for an induction device according to any one of claims 1 to 3, wherein the tape is made of glass fiber or polyester fiber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP30494098A JP3840819B2 (en) | 1998-10-27 | 1998-10-27 | Superconducting coil for induction equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP30494098A JP3840819B2 (en) | 1998-10-27 | 1998-10-27 | Superconducting coil for induction equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2000133515A true JP2000133515A (en) | 2000-05-12 |
| JP3840819B2 JP3840819B2 (en) | 2006-11-01 |
Family
ID=17939157
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP30494098A Expired - Fee Related JP3840819B2 (en) | 1998-10-27 | 1998-10-27 | Superconducting coil for induction equipment |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3840819B2 (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010267835A (en) * | 2009-05-15 | 2010-11-25 | Toshiba Corp | Superconductive coil |
| GB2485480A (en) * | 2010-11-15 | 2012-05-16 | Toshiba Kk | Superconducting coil with reduced peeling forces |
| JP2013131689A (en) * | 2011-12-22 | 2013-07-04 | Kyushu Electric Power Co Inc | Superconducting coil of induction apparatus for power |
| JP2013131690A (en) * | 2011-12-22 | 2013-07-04 | Kyushu Electric Power Co Inc | Superconducting coil of induction apparatus for power |
| JP2014165432A (en) * | 2013-02-27 | 2014-09-08 | Fuji Electric Co Ltd | Superconducting coil and superconducting transformer |
-
1998
- 1998-10-27 JP JP30494098A patent/JP3840819B2/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010267835A (en) * | 2009-05-15 | 2010-11-25 | Toshiba Corp | Superconductive coil |
| GB2485480A (en) * | 2010-11-15 | 2012-05-16 | Toshiba Kk | Superconducting coil with reduced peeling forces |
| US8655423B2 (en) | 2010-11-15 | 2014-02-18 | Kabushiki Kaisha Toshiba | Superconducting coil |
| GB2485480B (en) * | 2010-11-15 | 2014-07-09 | Toshiba Kk | Superconducting coil |
| JP2013131689A (en) * | 2011-12-22 | 2013-07-04 | Kyushu Electric Power Co Inc | Superconducting coil of induction apparatus for power |
| JP2013131690A (en) * | 2011-12-22 | 2013-07-04 | Kyushu Electric Power Co Inc | Superconducting coil of induction apparatus for power |
| JP2014165432A (en) * | 2013-02-27 | 2014-09-08 | Fuji Electric Co Ltd | Superconducting coil and superconducting transformer |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3840819B2 (en) | 2006-11-01 |
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