JPH11265829A - Magnetic shielding device for stationary induction electrical apparatus - Google Patents
Magnetic shielding device for stationary induction electrical apparatusInfo
- Publication number
- JPH11265829A JPH11265829A JP6645798A JP6645798A JPH11265829A JP H11265829 A JPH11265829 A JP H11265829A JP 6645798 A JP6645798 A JP 6645798A JP 6645798 A JP6645798 A JP 6645798A JP H11265829 A JPH11265829 A JP H11265829A
- Authority
- JP
- Japan
- Prior art keywords
- tank
- magnetic
- shield
- shields
- stationary induction
- 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.)
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- Transformer Cooling (AREA)
- Regulation Of General Use Transformers (AREA)
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
等の静止誘導電器の磁気遮蔽装置に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a magnetic shielding device for stationary induction devices such as transformers and reactors.
【０００２】[0002]
【従来の技術】一般に変圧器やリアクトル等のタンクに
は、巻線及びリード線からの漏れ磁束の侵入によってう
ず電流が流れ損失を発生する。この損失は大容量化する
ほど大きくなるので、通常は損失を低減するためにタン
クに磁気遮蔽装置が設けられるが、この磁気遮蔽装置と
しては銅，アルミニウム等の非磁性体や珪素鋼板等を積
層した磁性体シールドが使用されている。2. Description of the Related Art Generally, an eddy current flows into a tank such as a transformer or a reactor due to invasion of leakage magnetic flux from a winding and a lead wire, thereby causing a loss. Since this loss increases as the capacity increases, a magnetic shielding device is usually provided in the tank to reduce the loss. As this magnetic shielding device, a nonmagnetic material such as copper or aluminum or a silicon steel plate is laminated. Magnetic shields are used.
【０００３】図９，図１０に従来の磁性体シールド８を
用いた静止誘導電器の磁気遮蔽装置を示すが、図９から
分かるように内側巻線４及び外側巻線５からの漏れ磁束
４０は磁性体シールド８中を通過して内側巻線４，外側
巻線５へ帰る磁気回路を形成する。FIGS. 9 and 10 show a conventional magnetic shield device of a static induction device using a magnetic shield 8. As can be seen from FIG. 9, the leakage magnetic flux 40 from the inner winding 4 and the outer winding 5 is reduced. A magnetic circuit is formed which passes through the magnetic shield 8 and returns to the inner winding 4 and the outer winding 5.
【０００４】そのため、内側巻線４及び外側巻線５と対
向するタンク７の内側に幅Ｗで板厚の薄い珪素鋼板を積
層してなる磁性体シールド８の長手方向を垂直にして押
え金具（図示せず）を設けて横方向に並べており、しか
も図１０に示すように磁性体シールド８は磁性体シール
ド８を保護するために絶縁物９を設けた一体化構造とな
っている。[0004] Therefore, the magnetic shield 8 is formed by laminating a silicon steel sheet having a width W and a small thickness inside the tank 7 facing the inner winding 4 and the outer winding 5, and the longitudinal direction of the magnetic shield 8 is set to be vertical so that the presser fitting ( (Not shown) and are arranged in the horizontal direction. Further, as shown in FIG. 10, the magnetic shield 8 has an integrated structure provided with an insulator 9 to protect the magnetic shield 8.
【０００５】ところが、従来の磁性体シールド８を用い
た磁気遮蔽装置では内側巻線４及び外側巻線５からの漏
れ磁束４０が磁性体シールド８の表面へ垂直に侵入する
際に磁性体シールド８の表面をうず電流が流れ、そのう
ず電流で発生する損失の発熱を図中矢印で示すように変
圧器油５０で片面冷却しかできないために磁性体シール
ド８自身やタンク７が局部過熱したり、磁性体シールド
８を保護している絶縁物９等が熱劣化を引き起こしてし
まう欠点があった。However, in the conventional magnetic shielding device using the magnetic shield 8, when the leakage magnetic flux 40 from the inner winding 4 and the outer winding 5 vertically enters the surface of the magnetic shield 8, The eddy current flows on the surface of the eddy current, and the heat generated by the loss generated by the eddy current can only be cooled on one side by the transformer oil 50 as shown by the arrow in the figure, so that the magnetic material shield 8 itself and the tank 7 locally overheat, There is a disadvantage that the insulator 9 protecting the magnetic shield 8 causes thermal deterioration.
【０００６】[0006]
【発明が解決しようとする課題】上記従来技術の静止誘
導電器の磁気遮蔽装置では巻線からの漏れ磁束が磁性体
シールド表面へ垂直に侵入する際に磁性体シールド表面
をうず電流が流れ、そのうず電流による損失で磁性体シ
ールドに発生する発熱によって、磁性体シールドを保護
している絶縁物の熱劣化に対する配慮がされていないた
めに、磁性体シールド自身やタンクでの局部過熱の他に
磁性体シールドを保護している絶縁物等の熱劣化を防止
する構造について解決すべき課題があった。In the above-mentioned prior art magnetic shielding apparatus for a static induction device, eddy current flows on the magnetic shield surface when leakage magnetic flux from the winding vertically penetrates into the magnetic shield surface. Due to the heat generated in the magnetic shield due to the loss due to the eddy current, consideration has not been given to thermal degradation of the insulator protecting the magnetic shield. There is a problem to be solved about a structure for preventing thermal deterioration of an insulator or the like protecting a body shield.
【０００７】本発明の目的は、このような従来技術の課
題を有効に解決するもので、磁性体シールドとタンク内
側との間へ垂直に絶縁物をタンク高さ方向に設けて冷却
流路を形成して磁性体シールドやタンクでの局部過熱，
磁性体シールドを保護している絶縁物等の熱劣化を防止
する静止誘導電器の磁気遮蔽装置を提供することにあ
る。An object of the present invention is to effectively solve such problems of the prior art, and an insulating material is provided vertically between a magnetic shield and the inside of a tank in a tank height direction to form a cooling flow path. Local overheating in the magnetic shield and tank,
An object of the present invention is to provide a magnetic shielding device for a stationary induction device that prevents thermal deterioration of an insulator or the like that protects a magnetic shield.
【０００８】[0008]
【課題を解決するための手段】本発明は鉄心及び巻線を
有する誘導電器本体を収納するタンクの内側に磁性体を
積層してなる磁性体シールドを取り付けた静止誘導電器
の遮蔽装置において、前記磁性体シールドとタンク内側
との間ヘ垂直に絶縁物をタンク高さ方向に設けて冷却流
路を形成したことを特徴とする静止誘導電器の磁気遮蔽
装置。According to the present invention, there is provided a shielding device for a stationary induction electric machine in which a magnetic shield formed by laminating a magnetic material is mounted inside a tank accommodating an induction electric body having an iron core and a winding. A magnetic shielding device for a static induction device, wherein a cooling passage is formed by providing an insulating material vertically in a tank height direction between a magnetic material shield and the inside of a tank.
【０００９】即ち、本発明の静止誘導電器の磁気遮蔽装
置によれば、磁性体シールドとタンク内側との間ヘ垂直
に絶縁物をタンク高さ方向に設けて冷却流路を形成し、
その冷却流路に変圧器油を流すことにより、巻線からの
漏れ磁束が磁性体シールド表面へ垂直に侵入する際に磁
性体シールド表面を流れるうず電流によって発生する磁
性体シールド，タンク等の局部過熱や磁性体シールドを
保護している絶縁物の熱劣化も防止することが可能とな
る。That is, according to the magnetic shielding apparatus for a stationary induction device of the present invention, a cooling flow path is formed by vertically providing an insulator between the magnetic shield and the inside of the tank in the tank height direction,
By flowing transformer oil through the cooling flow path, local magnetic fields such as magnetic shields and tanks are generated by eddy currents flowing through the magnetic shield surface when magnetic flux leaking from the windings enters the magnetic shield surface perpendicularly. It is also possible to prevent overheating and thermal degradation of the insulator protecting the magnetic shield.
【００１０】[0010]
【発明の実施の形態】以下本発明の一実施例を図面を参
照しながら説明する。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below with reference to the drawings.
【００１１】図１は単相センタコア変圧器で磁性体シー
ルドの構成を示す平面図、図２が図１での磁性体シール
ドの要部断面図をそれぞれ示している。図１において、
主脚１及び側脚２，上部継鉄部３と内側巻線４，外側巻
線５からなる変圧器本体を収納したタンク７の内側で内
側巻線４，外側巻線５に対向した位置へ幅Ｗで板厚の薄
い珪素鋼板を積層してなる磁性体シールド８の長手方向
を垂直にして押え金具（図示せず）を設けて横方向に所
定の間隙部を介して並べられており、しかも図２に示す
ように磁性体シールド８を保護するために絶縁物９が設
けられ、その絶縁物９とタンク７内側との間ヘ垂直に絶
縁物１０をタンク高さ方向に設けて冷却流路１１を形成
した構成となっている。FIG. 1 is a plan view showing the structure of a magnetic shield in a single-phase center core transformer, and FIG. 2 is a sectional view of a main part of the magnetic shield in FIG. In FIG.
To the position facing the inner winding 4 and the outer winding 5 inside the tank 7 housing the transformer body including the main leg 1 and the side legs 2, the upper yoke 3, the inner winding 4, and the outer winding 5. The magnetic shields 8 formed by laminating silicon steel sheets having a width W and a small thickness are provided with holding metal fittings (not shown) with the longitudinal direction being vertical, and are arranged laterally with a predetermined gap therebetween. In addition, as shown in FIG. 2, an insulating material 9 is provided to protect the magnetic shield 8, and an insulating material 10 is provided vertically between the insulating material 9 and the inside of the tank 7 in the tank height direction so that the cooling flow is prevented. The configuration is such that a road 11 is formed.
【００１２】かかる構成法によれば、内側巻線４及び外
側巻線５からの漏れ磁束４０が矢印で示す如く、磁性体
シールド８へ垂直に侵入する際に磁性体シールド８の表
面をうず電流が流れ、そのうず電流で磁性体シールド８
が発熱しても絶縁物９とタンク７内側との間ヘ垂直に絶
縁物１０をタンク高さ方向に設けて冷却流路１１が形成
されているため、図中矢印で示すように磁性体シールド
８の表面と冷却流路１１中を変圧器油５０が流れて両面
冷却が可能となるために、局部過熱や熱劣化を防止する
ことができる。According to this configuration, when the leakage flux 40 from the inner winding 4 and the outer winding 5 penetrates perpendicularly into the magnetic shield 8 as indicated by the arrow, the eddy current flows through the surface of the magnetic shield 8. Flows, and the eddy current causes the magnetic shield 8
Even if heat is generated, the cooling passage 11 is formed by providing the insulator 10 vertically between the insulator 9 and the inside of the tank 7 in the tank height direction. Since the transformer oil 50 flows on the surface of the cooling water flow path 8 and in the cooling flow path 11 to enable cooling on both sides, local overheating and thermal deterioration can be prevented.
【００１３】また、変圧器が大容量化したり、輸送条件
などで小型化したことにより磁性体シールド８へ垂直に
侵入する漏れ磁束４０が増大して磁性体シールド８が磁
気飽和してタンク７に磁束が漏れて損失が発生しても冷
却路１１を変圧器油５０が流れるためにタンク７の局部
過熱を防止することができる。なお、絶縁物の材質とし
てはプレスボードが有効である。Further, as the capacity of the transformer is increased or the transformer is miniaturized due to transportation conditions, etc., the leakage magnetic flux 40 which vertically penetrates into the magnetic shield 8 is increased, and the magnetic shield 8 is magnetically saturated, and Even if the magnetic flux leaks and a loss occurs, the transformer oil 50 flows through the cooling passage 11, so that local overheating of the tank 7 can be prevented. Note that a press board is effective as a material of the insulator.
【００１４】図３は磁性体シールドの他の実施例を示
す。図３は磁性体シールド８の構成要素を示す要部断面
図を示している。図から分かるように磁性体シールド８
とタンク７内側との間ヘ垂直に設けられた絶縁物１０の
高さ方向の２個所に間隙部６０を設けた構成となってい
る。FIG. 3 shows another embodiment of the magnetic shield. FIG. 3 is a sectional view of a main part showing components of the magnetic shield 8. As can be seen from the figure, the magnetic shield 8
A gap 60 is provided at two places in the height direction of the insulator 10 vertically provided between the insulator 10 and the inside of the tank 7.
【００１５】かかる構成法によれば、絶縁物１０に設け
られた間隙部６０へも変圧器油が流れて冷却面積が拡大
するために冷却効果が向上し、磁性体シールド８やタン
ク７の局部過熱を防止できると共に絶縁物９，１０の熱
劣化等も抑制することが可能となる。しかも、磁性体シ
ールド８を流れるうず電流は珪素鋼板の端部を流れるた
め損失が最も大きくなる付近に間隙部６０を設けること
により、さらに冷却効果を向上させることが期待でき
る。なお、本発明は絶縁物１０に間隙部６０を２個所設
けた例で述べているが、複数個の間隙部６０を設けるこ
とにより、さらに冷却効果を向上させることができるの
は言うまでもない。According to this construction method, the transformer oil also flows into the gap 60 provided in the insulator 10 to increase the cooling area, so that the cooling effect is improved, and the magnetic shield 8 and the local portion of the tank 7 are improved. It is possible to prevent overheating and to suppress thermal degradation of the insulators 9 and 10. In addition, since the eddy current flowing through the magnetic shield 8 flows through the end of the silicon steel sheet, the cooling effect can be expected to be further improved by providing the gap 60 near where the loss is greatest. Although the present invention has been described with reference to an example in which two gaps 60 are provided in the insulator 10, it goes without saying that the cooling effect can be further improved by providing a plurality of gaps 60.
【００１６】図４は磁性体シールドの他の実施例を示
す。図４は磁性体シールド８の構成要素を示す要部断面
図を示している。図から分かるように磁性体シールド８
とタンク７内側との間ヘ垂直に設けられていた絶縁物１
０をなくし、かつ磁性体シールド８の両側でコ字型形状
に分割された絶縁物９を配置した構成となっている。FIG. 4 shows another embodiment of the magnetic shield. FIG. 4 is a sectional view of a main part showing components of the magnetic shield 8. As can be seen from the figure, the magnetic shield 8
Insulator 1 provided vertically between the tank and the inside of the tank 7
0 is eliminated, and insulators 9 divided into a U-shape on both sides of the magnetic shield 8 are arranged.
【００１７】かかる構成法によれば、磁性体シールド８
の損失で発生する発熱を磁性体シールド８の表面と冷却
流路１１の両面から変圧器油（図示せず）により効果的
に冷却できるため、磁性体シールド８やタンク７の局部
過熱を防止すると共に絶縁物９の熱劣化等も抑制するこ
とが可能となる。また、絶縁物１０をなくしているため
に製作部品が少なくなると共に製作工数も低減して安価
な磁性体シールド８を提供することができる。なお、本
発明は単相センタコアの変圧器を例にして述べている
が、単相４脚，３相３脚，３相５脚変圧器についても同
様な効果が期待できるのは言うまでもない。According to this configuration, the magnetic shield 8
The heat generated due to the loss of heat can be effectively cooled by the transformer oil (not shown) from both the surface of the magnetic shield 8 and both sides of the cooling flow path 11, thereby preventing local overheating of the magnetic shield 8 and the tank 7. At the same time, thermal degradation of the insulator 9 can be suppressed. In addition, since the insulator 10 is eliminated, the number of manufactured parts is reduced, and the number of manufacturing steps is reduced, so that the inexpensive magnetic shield 8 can be provided. Although the present invention has been described using a single-phase center-core transformer as an example, it goes without saying that the same effect can be expected for a single-phase four-leg, three-phase three-leg, and three-phase five-leg transformer.
【００１８】図５，図６に他の実施例を示す。図５は変
圧器タンク７の屈曲部に沿うように磁性体曲げシールド
７０を配置した縦断面図、図６が変圧器タンク７の屈曲
部の内側に設けられる磁性体曲げシールド７０で磁性体
曲げシールド７０を保護している絶縁物９とタンク７内
側との間へ垂直に絶縁物１０をタンク高さ方向に設けて
冷却流路１１を形成した構成をそれぞれ示している。FIGS. 5 and 6 show another embodiment. FIG. 5 is a longitudinal sectional view in which a magnetic material bending shield 70 is arranged along the bending portion of the transformer tank 7. FIG. 6 is a magnetic material bending shield 70 provided inside the bending portion of the transformer tank 7. The configuration in which an insulating material 10 is provided vertically in the tank height direction between the insulating material 9 protecting the shield 70 and the inside of the tank 7 to form a cooling flow channel 11 is shown.
【００１９】かかる構成法によれば、内側巻線４及び外
側巻線５と対向する磁性体曲げシールド７０とタンク７
内側との間へ垂直に絶縁物９をタンク高さ方向に設けて
冷却流路１１を形成しているために内側巻線４及び外側
巻線５からの漏れ磁束４０が矢印で示す如く、磁性体曲
げシールド７０の直線部へ垂直に侵入しても磁性体曲げ
シールド７０での損失により、発生する発熱を冷却流路
１１中を流れる変圧器油（図示せず）で効果的に冷却さ
れるために、磁性体曲げシールド７０やタンク７の局部
過熱を防止できると共に、磁性体曲げシールド７０を保
護するために設けられている絶縁物９の熱劣化等も抑制
することが可能となる。According to this configuration, the magnetic material bending shield 70 facing the inner winding 4 and the outer winding 5 and the tank 7
Since an insulating material 9 is provided vertically to the inside in the tank height direction to form the cooling channel 11, the leakage flux 40 from the inner winding 4 and the outer winding 5 is magnetic as shown by the arrow. Even if the magnetic material enters the straight portion of the body bending shield 70 vertically, the generated heat is effectively cooled by transformer oil (not shown) flowing through the cooling flow channel 11 due to the loss in the magnetic body bending shield 70. Therefore, local overheating of the magnetic material bending shield 70 and the tank 7 can be prevented, and thermal degradation of the insulator 9 provided for protecting the magnetic material bending shield 70 can be suppressed.
【００２０】また、本発明は磁性体曲げシールド７０を
保護するために設けられている絶縁物９とタンク７内側
との間ヘ垂直に絶縁物１０をタンク高さ方向設けて冷却
流路１１を形成した例で述べているが、図３，図４に示
した構造でも同様な効果が期待できるのは言うまでもな
い。Further, according to the present invention, an insulating material 10 is provided vertically between the insulator 9 provided for protecting the magnetic material bending shield 70 and the inside of the tank 7 in the tank height direction to form the cooling passage 11. Although described in the example of formation, it is needless to say that the same effects can be expected with the structures shown in FIGS.
【００２１】図７，図８に他の実施例を示す。図７は輸
送制限の関係から変圧器タンク７が内側巻線４及び外側
巻線５の上下端でタンク７の一部が外側巻線５に近く、
中央部で外側巻線５と遠くなったタンク７の屈曲部に沿
うように磁性体曲げシールド８０を配置した縦断面図、
図８が変圧器タンク７の屈曲部の内側に沿って設けられ
る磁性体曲げシールド８０で磁性体曲げシールド８０を
保護している絶縁物９とタンク７内側との間ヘ垂直に絶
縁物１０をタンク高さ方向に設けて冷却流路１１形成し
た構成をそれぞれ示している。FIGS. 7 and 8 show another embodiment. FIG. 7 shows that the transformer tank 7 has upper and lower ends of the inner winding 4 and the outer winding 5 and a part of the tank 7 is closer to the outer winding 5,
A longitudinal sectional view in which a magnetic material bending shield 80 is arranged along a bent portion of the tank 7 distant from the outer winding 5 at the center;
FIG. 8 shows that the insulating material 10 protecting the magnetic material bending shield 80 with the magnetic material bending shield 80 provided along the inside of the bent portion of the transformer tank 7 and the insulating material 10 vertically to the inside of the tank 7. The configuration in which the cooling channel 11 is formed in the tank height direction is shown.
【００２２】かかる構成法によれば、内側巻線４及び外
側巻線５の上下端部と対向する磁性体曲げシールド８０
が近くなる位置で最も損失が大きくなるが、磁性体曲げ
シールド８０とタンク７内側との間ヘ垂直に絶縁物１０
をタンク高さ方向に設けて冷却流路１１を形成している
ために内側巻線４及び外側巻線５からの漏れ磁束４０が
矢印で示す如く、磁性体曲げシールド８０へ垂直に侵入
しても磁性体曲げシールド８０での損失により発生する
発熱を冷却流路１１中を流れる変圧器油（図示せず）で
効果的に冷却されるために磁性体曲げシールド８０やタ
ンク７の局部過熱を防止できると共に磁性体曲げシール
ド８０を保護するために設けられている絶縁物９の熱劣
化等も抑制することが可能となる。According to this configuration, the magnetic material bending shield 80 facing the upper and lower ends of the inner winding 4 and the outer winding 5.
The loss is greatest at a position where the distance between the magnetic material bending shield 80 and the inside of the tank 7 is vertical.
Is provided in the tank height direction to form the cooling flow path 11, so that the leakage flux 40 from the inner winding 4 and the outer winding 5 vertically enters the magnetic bending shield 80 as shown by the arrow. Since the heat generated by the loss in the magnetic material bending shield 80 is effectively cooled by the transformer oil (not shown) flowing in the cooling passage 11, the local overheating of the magnetic material bending shield 80 and the tank 7 is reduced. It is possible to prevent the insulator 9 provided for protecting the magnetic material bending shield 80 from being thermally degraded and the like.
【００２３】また、磁性体曲げシールド８０とタンク７
内側との間ヘ垂直に絶縁物１０をタンク高さ方向に設け
て冷却流路１１を形成することにより、磁性体曲げシー
ルド８０やタンク７の局部過熱や絶縁物９の熱劣化等も
抑制することができるために、内側巻線４及び外側巻線
５と磁性体曲げシールド８０との距離を縮めることが可
能となり変圧器の小型化も図れる。なお、磁性体曲げシ
ールド８０をタンク７の屈曲部に沿うように形成するに
は専用の治具を用いることにより容易に製作することが
可能である。The magnetic material bending shield 80 and the tank 7
By providing the insulating material 10 vertically to the inside in the tank height direction to form the cooling flow path 11, local overheating of the magnetic material bending shield 80 and the tank 7 and thermal deterioration of the insulating material 9 are also suppressed. Therefore, the distance between the inner winding 4 and the outer winding 5 and the magnetic material bending shield 80 can be reduced, and the size of the transformer can be reduced. In order to form the magnetic bending shield 80 along the bent portion of the tank 7, it can be easily manufactured by using a dedicated jig.
【００２４】本発明は変圧器の冷却媒体が変圧器油を例
にして述べているが、ＳＦ6 ガスやパーフロロカーボン
等にした場合も同様な効果が期待できる。なお、図１〜
図１０は変圧器を対象に説明してきたが、リアクトルに
も適用でき、その効果はこれまで述べてきた変圧器と同
様に期待できるものである。Although the present invention has been described by taking the transformer cooling medium as an example, the same effect can be expected when SF 6 gas, perfluorocarbon, or the like is used. In addition, FIG.
Although FIG. 10 has been described for a transformer, the present invention can be applied to a reactor, and the effect can be expected similarly to the transformer described above.
【００２５】[0025]
【発明の効果】以下、本発明の静止誘導電器の磁気遮蔽
装置によれば、磁性体シールドとタンク内側との間へ垂
直に絶縁物をタンク高さ方向に設けて冷却流路を形成す
ることにより、磁性体シールドやタンクでの局部過熱及
び磁性体シールドを保護している絶縁物などの熱劣化を
防止することが可能となる。According to the magnetic shielding device for a stationary induction device of the present invention, a cooling passage is formed by vertically providing an insulator between the magnetic shield and the inside of the tank in the tank height direction. Accordingly, it is possible to prevent local overheating in the magnetic shield and the tank and thermal deterioration of the insulator protecting the magnetic shield.
【図１】本発明の一実施例を示す静止誘導電器の磁気遮
蔽装置の平面図。FIG. 1 is a plan view of a magnetic shielding device of a stationary induction device showing one embodiment of the present invention.
【図２】本発明の一実施例を示す静止誘導電器の磁気遮
蔽装置の要部斜視図。FIG. 2 is a perspective view of a main part of a magnetic shielding device for a stationary induction device, showing one embodiment of the present invention.
【図３】本発明の一実施例を示す静止誘導電器の磁気遮
蔽装置の要部斜視図。FIG. 3 is a perspective view of a main part of a magnetic shielding device for a stationary induction device, showing one embodiment of the present invention.
【図４】本発明の一実施例を示す静止誘導電器の磁気遮
蔽装置の要部斜視図。FIG. 4 is a perspective view of a main part of a magnetic shielding device for a stationary induction device, showing one embodiment of the present invention.
【図５】本発明の一実施例を示す静止誘導電器の磁気遮
蔽装置の縦断面図。FIG. 5 is a longitudinal sectional view of a magnetic shielding device of a stationary induction device showing one embodiment of the present invention.
【図６】本発明の一実施例を示す静止誘導電器の磁気遮
蔽装置の要部斜視図。FIG. 6 is a perspective view of a main part of a magnetic shielding device for a stationary induction device, showing one embodiment of the present invention.
【図７】本発明の一実施例を示す静止誘導電器の磁気遮
蔽装置の縦断面図。FIG. 7 is a longitudinal sectional view of a magnetic shielding device for a stationary induction device showing one embodiment of the present invention.
【図８】本発明の一実施例を示す静止誘導電器の磁気遮
蔽装置の要部斜視図。FIG. 8 is a perspective view of a main part of a magnetic shielding device of a stationary induction device showing one embodiment of the present invention.
【図９】従来の実施例を示す静止誘導電器の磁気遮蔽装
置の平面図。FIG. 9 is a plan view of a magnetic shielding device of a stationary induction device showing a conventional example.
【図１０】従来の実施例を示す静止誘導電器の磁気遮蔽
装置の要部斜視図。FIG. 10 is a perspective view of a main part of a magnetic shielding device of a stationary induction device showing a conventional example.
１…主脚、２…側脚、３…上部継鉄部、４…内側巻線、
５…外側巻線、６，７…タンク、８…磁性体シールド、
９，１０…絶縁物、１１…冷却流路、４０…漏れ磁束、
６０…間隙部、７０，８０…磁性体曲げシールド。DESCRIPTION OF SYMBOLS 1 ... Main leg, 2 ... Side leg, 3 ... Upper yoke part, 4 ... Inner winding,
5 ... Outer winding, 6,7 ... Tank, 8 ... Magnetic shield,
9, 10: insulator, 11: cooling channel, 40: magnetic flux leakage,
60: gap, 70, 80: magnetic bending shield.
Claims (6)
するタンクの内側に磁性体を積層してなる磁性体シール
ドを取り付けた静止誘導電器の遮蔽装置において、前記
磁性体シールドとタンク内側との間に絶縁物をタンク高
さ方向ヘ垂直に設けて冷却流路を形成したことを特徴と
する静止誘導電器の磁気遮蔽装置。1. A stationary induction machine shielding apparatus in which a magnetic shield formed by laminating a magnetic material is mounted inside a tank accommodating an induction electric machine main body having an iron core and a winding. A magnetic shielding device for a stationary induction device, characterized in that an insulating material is provided vertically to a tank height direction to form a cooling channel.
に設けた絶縁物で磁性体シールド中央部に加えて両端部
にも冷却流路を設けたことを特徴とする請求項１記載の
静止誘導電器の磁気遮蔽装置。2. A cooling passage is provided at both ends in addition to a center portion of the magnetic shield with an insulator vertically provided between the magnetic shield and the inside of the tank. Magnetic shielding device for stationary induction equipment.
に設けた絶縁物を高さ方向に分割したことを特徴とする
請求項１記載の静止誘導電器の磁気遮蔽装置。3. The magnetic shielding device for a stationary induction device according to claim 1, wherein an insulator vertically provided between the magnetic material shield and the inside of the tank is divided in a height direction.
ている絶縁物をコ字型形状に分割して磁性体シールドの
両側に設けたことを特徴とする請求項１記載の静止誘導
電器の磁気遮蔽装置。4. The stationary induction device according to claim 1, wherein an insulator provided for protecting the magnetic shield is divided into a U-shape and provided on both sides of the magnetic shield. Magnetic shielding device.
に設けられる絶縁物の材質は例えばプレボードとしたこ
とを特徴とする請求項１記載の静止誘導電器の磁気遮蔽
装置。5. The magnetic shielding device for a stationary induction electric device according to claim 1, wherein the material of the insulator provided vertically between the magnetic material shield and the inside of the tank is, for example, a pre-board.
するタンク屈曲部の内側に沿うように磁性体を積層して
なる磁性体曲げシールドを取り付けた静止誘導電器の遮
蔽装置において、前記磁性体曲げシールドとタンク内側
との間ヘ垂直に絶縁物をタンク高さ方向に設けて冷却流
路を形成したことを特徴とする静止誘導電器の磁気遮蔽
装置。6. A shielding device for a stationary induction device to which a magnetic material bending shield formed by laminating magnetic materials along the inside of a bent portion of a tank accommodating an induction device main body having an iron core and a winding is provided. A magnetic shielding device for a stationary induction device, wherein an insulating material is provided vertically between a body bending shield and the inside of a tank in a tank height direction to form a cooling channel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6645798A JPH11265829A (en) | 1998-03-17 | 1998-03-17 | Magnetic shielding device for stationary induction electrical apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6645798A JPH11265829A (en) | 1998-03-17 | 1998-03-17 | Magnetic shielding device for stationary induction electrical apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH11265829A true JPH11265829A (en) | 1999-09-28 |
Family
ID=13316329
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6645798A Pending JPH11265829A (en) | 1998-03-17 | 1998-03-17 | Magnetic shielding device for stationary induction electrical apparatus |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH11265829A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011018957A1 (en) * | 2009-08-12 | 2011-02-17 | 株式会社 日立メディコ | High voltage generating device, and x-ray ct device using the same |
| JP2013065701A (en) * | 2011-09-16 | 2013-04-11 | Hitachi Industrial Equipment Systems Co Ltd | Static apparatus |
-
1998
- 1998-03-17 JP JP6645798A patent/JPH11265829A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011018957A1 (en) * | 2009-08-12 | 2011-02-17 | 株式会社 日立メディコ | High voltage generating device, and x-ray ct device using the same |
| JPWO2011018957A1 (en) * | 2009-08-12 | 2013-01-17 | 株式会社日立メディコ | High voltage generator and X-ray CT apparatus using the same |
| JP5694168B2 (en) * | 2009-08-12 | 2015-04-01 | 株式会社日立メディコ | High voltage generator and X-ray CT apparatus using the same |
| JP2013065701A (en) * | 2011-09-16 | 2013-04-11 | Hitachi Industrial Equipment Systems Co Ltd | Static apparatus |
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