JP2002334636A - Gas-insulated disconnecting switch - Google Patents
Gas-insulated disconnecting switchInfo
- Publication number
- JP2002334636A JP2002334636A JP2001139063A JP2001139063A JP2002334636A JP 2002334636 A JP2002334636 A JP 2002334636A JP 2001139063 A JP2001139063 A JP 2001139063A JP 2001139063 A JP2001139063 A JP 2001139063A JP 2002334636 A JP2002334636 A JP 2002334636A
- Authority
- JP
- Japan
- Prior art keywords
- contact
- fixed
- arc
- gas
- contact points
- 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.)
- Withdrawn
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Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、アークに作用する
磁界を強くしてアークの駆動を増大することにより遮断
性能を向上させるガス絶縁断路器の改良に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an improvement in a gas insulated disconnector which enhances a breaking performance by increasing a driving force of an arc by strengthening a magnetic field acting on the arc.
【０００２】[0002]
【従来の技術】図８は、実開昭５７−１９７１４４号公
報に示された従来のガス絶縁断路器の断面図である。図
において、０１は筒状の可動接点、０２は可動接点０１
に対向配置されたチューリップ状の固定接点、０３は絶
縁体０４を介して固定接点０２内部に配置した永久磁
石、０５は磁性体である。係る構成を有する従来装置で
は、可動接点０１を上方に駆動して開極するときに可動
接点０１と固定接点０２との間に生じるアーク０６を永
久磁石０３の磁界によって駆動することで遮断してい
た。2. Description of the Related Art FIG. 8 is a sectional view of a conventional gas-insulated disconnector disclosed in Japanese Utility Model Laid-Open No. 57-197144. In the figure, 01 is a cylindrical movable contact, 02 is a movable contact 01
, A fixed contact in the form of a tulip disposed opposite to the fixed contact, 03 is a permanent magnet disposed inside the fixed contact 02 via an insulator 04, and 05 is a magnetic material. In the conventional device having such a configuration, the arc 06 generated between the movable contact 01 and the fixed contact 02 when the movable contact 01 is driven upward to open the electrode is interrupted by being driven by the magnetic field of the permanent magnet 03. Was.
【０００３】[0003]
【発明が解決しようとする課題】しかしながら、上記従
来装置にあっては、永久磁石０３を固定接点０２の内側
に設けているものの、可動接点０１を固定接点０２の内
側に挿入する構造であるため、永久磁石０３の配置され
る位置は、固定接点０２の奥部に収納しなければなら
ず、そのため永久磁石０３はアーク０６から離れた位置
に設けざるを得ず、結果アーク０６にかかる磁界が弱く
なり、満足のいく遮断性能を得ることが困難となる問題
があった。また、絶縁ガスであるＳＦ6ガスを混合ガス
に切り替えて用いる場合には、代替ガスとしての混合ガ
スはＳＦ6ガスに比べて遮断性能が劣るため、永久磁石
とアークとの距離をいかに短くして強い磁界を得るよう
にするかということが重要な問題となっていた。However, in the above-described conventional device, although the permanent magnet 03 is provided inside the fixed contact 02, the movable contact 01 is inserted inside the fixed contact 02. The position where the permanent magnet 03 is disposed must be accommodated in the deep part of the fixed contact 02. Therefore, the permanent magnet 03 must be provided at a position away from the arc 06, and as a result, the magnetic field applied to the arc 06 is reduced. There has been a problem that it becomes weak and it is difficult to obtain a satisfactory blocking performance. When the SF 6 gas, which is an insulating gas, is used by switching to a mixed gas, the mixed gas as an alternative gas has a lower blocking performance than the SF 6 gas, so the distance between the permanent magnet and the arc is reduced. An important issue is how to obtain a strong magnetic field.
【０００４】この発明は上記のような問題点を解決する
ためになされたもので、比較的簡単な構造で、アークに
作用する磁界強度を高めてアークの磁気駆動力を増大さ
せ、電流の遮断性能を向上させるガス絶縁断路器を提供
することを目的とする。SUMMARY OF THE INVENTION The present invention has been made to solve the above problems, and has a relatively simple structure, which increases the magnetic field strength acting on the arc to increase the magnetic driving force of the arc and cuts off current. It is an object of the present invention to provide a gas insulated disconnector having improved performance.
【０００５】[0005]
【課題を解決するための手段】この発明は、上記目的を
達成するために、次の構成を有する。すなわち、請求項
１記載の発明に係るガス絶縁断路器は、絶縁性ガスを封
入したタンク、該タンク内に配置され、筒状に形成した
固定主接点と開極時にアークの発生する固定アーク接点
とを有する固定接点、駆動装置により駆動され、上記固
定接点と接離する可動接点、および上記固定接点の周囲
にシールドを設けたガス絶縁断路器において、上記固定
主接点の内側に筒状に形成した上記固定アーク接点を同
心円的に配置して、上記固定主接点と上記固定アーク接
点との間を上記可動接点が進退するように形成し、上記
固定アーク接点の内部に上記駆動方向に沿って磁極の極
性が配列するように永久磁石を設けた構成を有する。The present invention has the following configuration to achieve the above object. In other words, the gas-insulated disconnector according to the first aspect of the present invention is a tank filled with an insulating gas, a fixed main contact disposed in the tank and having a cylindrical shape, and a fixed arc contact that generates an arc when the electrode is opened. A fixed contact having a fixed contact, a movable contact which is driven by a driving device and comes into contact with and separates from the fixed contact, and a gas insulated disconnector provided with a shield around the fixed contact, formed in a cylindrical shape inside the fixed main contact. The fixed arc contacts are arranged concentrically, and the movable contacts are formed so as to advance and retreat between the fixed main contacts and the fixed arc contacts, and are arranged inside the fixed arc contacts along the driving direction. It has a configuration in which permanent magnets are provided so that the polarities of the magnetic poles are arranged.
【０００６】請求項２記載の発明は、請求項１記載のガ
ス絶縁開閉装置に係り、上記固定主接点と上記シールド
との間に磁性体を配置したことを特徴とする。According to a second aspect of the present invention, there is provided the gas insulated switchgear according to the first aspect, wherein a magnetic body is disposed between the fixed main contact and the shield.
【０００７】請求項３記載の発明は、絶縁性ガスを封入
したタンク、該タンク内に配置され、筒状に形成した固
定主接点と開極時にアークの発生する固定アーク接点と
を有する固定接点、駆動装置により駆動され、上記固定
接点と接離する可動接点、および上記固定接点の周囲に
シールドを設けたガス絶縁断路器において、上記固定主
接点の内側に筒状に形成した上記固定アーク接点を同心
円的に配置して、上記固定主接点と上記固定アーク接点
との間を上記可動接点が進退するように形成し、上記固
定主接点の自由端近傍外周に互いに引きつけ合う向きに
２個以上の永久磁石を対向して配置した構成を有する。According to a third aspect of the present invention, there is provided a fixed contact having a tank filled with an insulating gas, a fixed main contact formed in a cylindrical shape, and a fixed arc contact which generates an arc when the electrode is opened. A movable contact that is driven by a driving device and comes into contact with and separates from the fixed contact; and a gas-insulated disconnector provided with a shield around the fixed contact, wherein the fixed arc contact is formed in a tubular shape inside the fixed main contact. Are arranged concentrically, and the movable contact is formed so as to advance and retreat between the fixed main contact and the fixed arc contact. Are arranged facing each other.
【０００８】請求項４記載の発明は、請求項３記載のガ
ス絶縁開閉装置に係り、上記シールドの内側に磁性体を
配置したことを特徴とする。According to a fourth aspect of the present invention, there is provided the gas insulated switchgear according to the third aspect, wherein a magnetic body is disposed inside the shield.
【０００９】請求項５記載の発明は、請求項３または４
記載のガス絶縁開閉装置に係り、上記シールドと上記固
定接点との間に磁性体を複数枚配置した構成を有する。The invention according to claim 5 is the invention according to claim 3 or 4.
According to the gas insulated switchgear described above, the gas insulated switchgear has a configuration in which a plurality of magnetic bodies are arranged between the shield and the fixed contact.
【００１０】[0010]
【発明の実施の形態】実施の形態１．以下、本発明を図
１に示した実施の形態１に基づいて詳述する。図１は、
この発明の実施の形態１であるガス絶縁断路器の消弧室
を示す断面図である。消弧室は絶縁ガスを封入したタン
ク（図示しない）内に配置され、そこに図１に示すガス
絶縁断路器の構成要素が設けられる。図１において、１
は筒状の固定主接点、２は縦断面フィンガー形状を有す
る固定アーク接点で、この固定アーク接点２と固定主接
点１とで固定接点が形成される。３は固定接点に対向配
置された筒状の可動接点、４は固定接点の外側に設けた
固定側シールド、５は可動側シールド、６は集電子、７
は電極間に発生するアークを各々示す。固定アーク接点
２の内部には、永久磁石が軸方向、すなわち可動接点３
が駆動されるその駆動方向に沿ってＮ極、Ｓ極またはＳ
極、Ｎ極となる向きに配置されている。また、固定アー
ク接点２は固定主接点１の内側に同心円的に配置されて
いて、これら両接点１，２の間に存する隙間に可動接点
３が進退して駆動変位される。DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiment 1 Hereinafter, the present invention will be described in detail based on Embodiment 1 shown in FIG. FIG.
It is sectional drawing which shows the arc-extinguishing chamber of the gas insulated disconnector which is Embodiment 1 of this invention. The arc-extinguishing chamber is arranged in a tank (not shown) filled with an insulating gas, in which the components of the gas-insulated disconnector shown in FIG. 1 are provided. In FIG. 1, 1
Is a cylindrical fixed main contact, 2 is a fixed arc contact having a vertical cross-section finger shape, and the fixed arc contact 2 and the fixed main contact 1 form a fixed contact. 3 is a cylindrical movable contact opposed to the fixed contact, 4 is a fixed side shield provided outside the fixed contact, 5 is a movable side shield, 6 is a current collector, 7
Indicates an arc generated between the electrodes. Inside the fixed arc contact 2, a permanent magnet is provided in the axial direction, that is, the movable contact 3.
Is driven along its driving direction to the north pole, south pole or south pole.
The poles and the N poles are arranged in such a direction. Further, the fixed arc contact 2 is arranged concentrically inside the fixed main contact 1, and the movable contact 3 advances and retreats in a gap existing between the two contacts 1 and 2, and is driven and displaced.
【００１１】ガス絶縁断路器が閉極状態にある場合に
は、電流は固定主接点１、可動接点３，および集電子６
を通して通電している。ガス絶縁断路器に開極指令が与
えられると、図示されない駆動装置により可動接点３が
図１の右方向に駆動する。それにより固定主接点１と可
動接点３が開離し、固定主接点１を流れていた電流は固
定アーク接点２に転流する。さらに、開極が進むと、時
間的に遅れて固定アーク接点２と可動接点３が開離し、
アーク７が発生する。When the gas insulated disconnector is in the closed state, the current is applied to the fixed main contact 1, the movable contact 3, and the current collector 6
It is energized through. When an opening command is given to the gas insulated disconnector, the movable contact 3 is driven rightward in FIG. As a result, the fixed main contact 1 and the movable contact 3 are separated, and the current flowing through the fixed main contact 1 is diverted to the fixed arc contact 2. Further, as the opening proceeds, the fixed arc contact 2 and the movable contact 3 are separated from each other with a time delay,
An arc 7 occurs.
【００１２】アーク７は永久磁石８による磁界により円
周方向の力を受けて回転運動する。すなわち、アーク７
は回転方向に駆動されて消弧される。この場合、固定ア
ーク接点２、可動接点３はフィンガー等の筒状に構成さ
れているため、アークが径方向の磁界が弱い中心に付く
ことはないため、安定して駆動される。また、固定アー
ク接点２内に磁石を配置しているため、磁石からアーク
までの距離は近く、アーク７に強い磁界が作用する。そ
のため、アーク７は強く駆動され、遮断性能を一層向上
できる。The arc 7 rotates by receiving a force in a circumferential direction by a magnetic field generated by the permanent magnet 8. That is, arc 7
Is driven in the rotational direction to extinguish the arc. In this case, since the fixed arc contact 2 and the movable contact 3 are formed in a cylindrical shape such as a finger, the arc is not attached to the center where the magnetic field in the radial direction is weak, so that the arc is driven stably. Further, since the magnet is arranged in the fixed arc contact 2, the distance from the magnet to the arc is short, and a strong magnetic field acts on the arc 7. Therefore, the arc 7 is strongly driven, and the breaking performance can be further improved.
【００１３】実施の形態２．図２はこの発明の実施の形
態２であるガス絶縁断路器の消弧室を示す断面図であ
る。本実施の形態２が実施の形態１と構成上異なる点
は、実施の形態１に加えて固定主接点１の周囲に磁性体
９を取り付けた点にあり、それ以外の構成は共通する。
永久磁石８による磁界は、固定主接点１の周囲に取り付
けられた磁性体９に引きつけられるため、アークの発生
する接点間では、半径方向により強い磁路を形成するた
めアーク７は駆動されやすくなり、より遮断性能を向上
できる。Embodiment 2 FIG. FIG. 2 is a sectional view showing an arc-extinguishing chamber of a gas-insulated disconnector according to a second embodiment of the present invention. The second embodiment differs from the first embodiment in the configuration in that a magnetic body 9 is attached around the fixed main contact 1 in addition to the first embodiment, and the other configurations are common.
Since the magnetic field generated by the permanent magnet 8 is attracted to the magnetic body 9 attached around the fixed main contact 1, the arc 7 is easily driven because a stronger magnetic path is formed in the radial direction between the arc-generating contacts. , The breaking performance can be further improved.
【００１４】磁性体の材料としては、透過率の大きい材
質、例えば鉄や鉄を含んだ合金といった強磁性体等が用
いられる。また、磁性体は円筒状の一体型で構成しても
よいが、分割して円周上に配置した態様であってもよ
い。As the material of the magnetic material, a material having a high transmittance, for example, a ferromagnetic material such as iron or an alloy containing iron is used. Further, the magnetic body may be formed as a cylindrical integral type, but may be divided and arranged on a circumference.
【００１５】実施の形態３．図３はこの発明の実施の形
態３であるガス絶縁断路器の消弧室を示す断面図であ
る。図４は、図３のＡ−Ａ線における断面図である。図
３，図４において、１は固定主接点、２は固定アーク接
点、３は可動接点、４は固定側シールド、５は可動側シ
ールド、６は集電子、７は電極間に発生するアークを各
々示す。固定主接点１の周囲には永久磁石８がＮ極、Ｓ
極、Ｎ極、Ｓ極というように互いに引きつけ合う向きに
配置されている。Embodiment 3 FIG. 3 is a sectional view showing an arc-extinguishing chamber of a gas-insulated disconnector according to a third embodiment of the present invention. FIG. 4 is a sectional view taken along line AA of FIG. 3 and 4, 1 is a fixed main contact, 2 is a fixed arc contact, 3 is a movable contact, 4 is a fixed side shield, 5 is a movable side shield, 6 is a current collector, and 7 is an arc generated between the electrodes. Each is shown. Around the fixed main contact 1, a permanent magnet 8 has N poles and S poles.
The poles, the N pole, and the S pole are arranged in such a direction as to attract each other.
【００１６】ガス絶縁断路器が閉極状態にある場合に
は、電流は固定主接点１，可動接点３を通して通電して
いる。ガス絶縁断路器に開極指令が与えられると、図に
示されていない駆動装置により可動接点３が図１の右方
向に駆動する。それにより、固定主接点１と可動接点３
が開離し、固定主接点１を流れていた電流は固定アーク
接点２に転流する。さらに、開極が進むと時間的に遅れ
て固定アーク接点２と可動接点３は開離し、アーク７が
発生する。When the gas insulated disconnector is in the closed state, the current flows through the fixed main contact 1 and the movable contact 3. When an opening command is given to the gas insulated disconnector, the movable contact 3 is driven rightward in FIG. 1 by a driving device (not shown). Thereby, the fixed main contact 1 and the movable contact 3
Are separated, and the current flowing through the fixed main contact 1 is commutated to the fixed arc contact 2. Further, as the opening proceeds, the fixed arc contact 2 and the movable contact 3 are separated from each other with a time delay, and an arc 7 is generated.
【００１７】永久磁石８が発生する上下方向の磁界とア
ーク７の軸方向に流れる電流によりアーク７はローレン
ツ力により図の手前または奥向きに電磁力を受け、駆動
される。それによりアーク７は引き延ばされ消弧され
る。永久磁石８は軸方向に対して直交する方向に配置さ
れているため、アーク７と磁束のなす角度は垂直に近く
なり、アーク７の受ける円周方向の力は大きくなって、
アーク７は駆動されやすくなる。そのため、アーク７の
消弧性能をより向上できる。The arc 7 receives an electromagnetic force by Lorentz force toward or away from the figure by a vertical magnetic field generated by the permanent magnet 8 and a current flowing in the axial direction of the arc 7, and is driven. As a result, the arc 7 is elongated and extinguished. Since the permanent magnets 8 are arranged in a direction orthogonal to the axial direction, the angle between the arc 7 and the magnetic flux becomes nearly perpendicular, and the arc 7 receives a greater circumferential force.
The arc 7 is easily driven. Therefore, the arc extinguishing performance of the arc 7 can be further improved.
【００１８】実施の形態４．図５は、この発明の実施の
形態４であるガス絶縁断路器の消弧室の断面図である。
実施の形態４は、実施の形態３のガス絶縁断路器に加え
てシールド４の内側、例えば固定接点側内面に磁性体板
１０を取り付けた構成を有するものである。Embodiment 4 FIG. 5 is a sectional view of an arc-extinguishing chamber of a gas-insulated disconnector according to a fourth embodiment of the present invention.
The fourth embodiment has a configuration in which a magnetic plate 10 is attached to the inside of the shield 4, for example, to the inner surface on the fixed contact side, in addition to the gas insulated disconnector of the third embodiment.
【００１９】実施の形態３では可動接点３が、固定主接
点１と固定アーク接点２とで形成される固定接点の固定
側シールド４より外側に出た場合に、固定側シールド４
より可動接点３側のアークも磁界により駆動される。そ
の場合にはアークがタンク側に駆動されるため地絡に至
る可能性があった。そのため固定側シールド４の内側に
磁性体板１０を配置し、固定側シールド４外側の磁界を
弱くすることにより地絡を防ぐことができる。In the third embodiment, when the movable contact 3 comes out of the fixed shield 4 of the fixed contact formed by the fixed main contact 1 and the fixed arc contact 2, the fixed shield 4
The arc on the movable contact 3 side is also driven by the magnetic field. In such a case, the arc was driven to the tank side, which could lead to a ground fault. Therefore, the magnetic plate 10 is arranged inside the fixed-side shield 4 and the magnetic field outside the fixed-side shield 4 is weakened, so that a ground fault can be prevented.
【００２０】実施の形態５．図６にこの発明の実施の形
態５であるガス絶縁断路器の消弧室の断面図を示す。ま
た、図７に径方向断面図を示す。本実施の形態５は、実
施の形態３のガス絶縁断路器に加えて固定主接点１と固
定側シールド４との間に複数枚の磁性体よりなる消弧板
１１を配置したものである。Embodiment 5 FIG. 6 is a sectional view of an arc-extinguishing chamber of a gas-insulated disconnector according to a fifth embodiment of the present invention. FIG. 7 shows a sectional view in the radial direction. In the fifth embodiment, in addition to the gas insulated disconnector of the third embodiment, an arc-extinguishing plate 11 made of a plurality of magnetic materials is arranged between the fixed main contact 1 and the fixed-side shield 4.
【００２１】固定アーク接点２と可動接点３との間に発
生するアーク７を流れる電流により発生する磁界は、磁
性体で形成された消弧板１１により偏歪される。そのた
めアーク７は消弧板１１側に引きつけられる。それによ
り、アーク７は実施の形態２以上に図の右側に駆動しや
すくなるため、遮断性能は向上する。The magnetic field generated by the current flowing through the arc 7 generated between the fixed arc contact 2 and the movable contact 3 is distorted by the arc-extinguishing plate 11 made of a magnetic material. Therefore, the arc 7 is attracted to the arc extinguishing plate 11 side. Thereby, the arc 7 is more easily driven to the right side in the figure than in the second embodiment, and the breaking performance is improved.
【００２２】[0022]
【発明の効果】以上説明したように、本発明によれば、
以下のような効果を奏する。請求項１に係る発明は、固
定主接点の内側に筒状に形成した上記固定アーク接点を
同心円的に配置して、固定主接点と固定アーク接点との
間を可動接点が進退するように配置し、固定アーク接点
の内部に駆動方向に沿って磁極の極性が配列する永久磁
石を設けた構成を有する。係る構成にしたことで、永久
磁石をアークの近くに配置できるため、アークに作用す
る磁界を強くでき、その結果、アークを良く駆動するこ
とができ、遮断性能を向上でき、さらにはコンパクトな
ガス絶縁断路器を得ることができ、遮断性能の劣る混合
ガスを使用するガス絶縁断路器にも適用でき有利となる
等の種々の効果を奏する。As described above, according to the present invention,
The following effects are obtained. According to the first aspect of the present invention, the cylindrical fixed arc contact is concentrically arranged inside the fixed main contact so that the movable contact moves between the fixed main contact and the fixed arc contact. In addition, a permanent magnet in which the polarities of the magnetic poles are arranged along the driving direction is provided inside the fixed arc contact. With such a configuration, the permanent magnet can be arranged near the arc, so that the magnetic field acting on the arc can be increased. As a result, the arc can be driven well, the breaking performance can be improved, and furthermore, a compact gas can be obtained. An insulated disconnector can be obtained, and various effects such as being advantageous because it can be applied to a gas insulated disconnector using a mixed gas having inferior breaking performance can be obtained.
【００２３】請求項２に係る発明において、上記固定主
接点と上記シールドとの間、すなわち、固定主接点周囲
に磁性体を設けた構成としたことで、磁石による磁束は
磁性体側に引きつけられ、径方向に強い磁界発生するた
め、可動接点と固定アーク接点間に発生するアークに対
してなす角度が垂直に近くなる。そのため、アークをよ
く駆動することができ、遮断性能を向上できる効果を奏
する。According to the second aspect of the present invention, since a magnetic material is provided between the fixed main contact and the shield, that is, around the fixed main contact, the magnetic flux by the magnet is attracted to the magnetic material side, Since a strong magnetic field is generated in the radial direction, the angle formed with respect to the arc generated between the movable contact and the fixed arc contact becomes almost perpendicular. Therefore, the arc can be driven well, and the effect of improving the breaking performance can be obtained.
【００２４】請求項３に係る発明において、固定主接点
の自由端近傍外周に互いに引きつけ合う向きに２個以上
の永久磁石を対向して配置したので、永久磁石により発
生する磁界により、電極間に発生するアークは駆動さ
れ、そのため遮断性能を向上できる効果を奏する。According to the third aspect of the present invention, two or more permanent magnets are arranged to face each other on the outer periphery near the free end of the fixed main contact so as to attract each other. The generated arc is driven, and thus has the effect of improving the breaking performance.
【００２５】請求項４に係る発明において、上記シール
ドの内側に磁性体を配置したため、シールド外側の磁界
を弱くすることにより、地路を防ぐことができる効果を
奏する。According to the fourth aspect of the present invention, since the magnetic material is disposed inside the shield, the magnetic field outside the shield is weakened, thereby providing an effect of preventing a ground.
【００２６】請求項５に係る発明において、上記シール
ドと上記固定接点との間に磁性体を複数枚配置したの
で、アークを流れる電流により発生する磁界は、磁性体
により偏歪され、その結果、アークは磁性体側に引きず
られ駆動し易くなり、遮断性能を向上できる効果を奏す
る。In the invention according to claim 5, since a plurality of magnetic materials are arranged between the shield and the fixed contact, a magnetic field generated by a current flowing through the arc is biased by the magnetic material, and as a result, The arc is easily dragged by the magnetic material and is easily driven, thereby improving the breaking performance.
【図１】 本発明の実施の形態１に係るガス絶縁断路器
の消弧室を示す断面図である。FIG. 1 is a sectional view showing an arc-extinguishing chamber of a gas-insulated disconnector according to Embodiment 1 of the present invention.
【図２】 実施の形態２に係るガス絶縁断路器の消弧室
を示す断面図である。FIG. 2 is a sectional view showing an arc-extinguishing chamber of a gas-insulated disconnector according to a second embodiment.
【図３】 実施の形態３に係るガス絶縁断路器の消弧室
を示す断面図である。FIG. 3 is a sectional view showing an arc-extinguishing chamber of a gas-insulated disconnector according to a third embodiment.
【図４】 図３のＡ−Ａ線における断面図である。FIG. 4 is a cross-sectional view taken along line AA of FIG.
【図５】 実施の形態４であるガス絶縁断路器の消弧室
の断面図である。FIG. 5 is a sectional view of an arc-extinguishing chamber of a gas-insulated disconnector according to a fourth embodiment.
【図６】 実施の形態５に係り、図７のＡ−Ａ線におけ
るガス絶縁断路器の消弧室の断面図である。FIG. 6 is a cross-sectional view of the arc extinguishing chamber of the gas insulated disconnector taken along line AA of FIG. 7 according to the fifth embodiment.
【図７】 図６の横断面図である。FIG. 7 is a cross-sectional view of FIG.
【図８】 従来装置における断面図である。FIG. 8 is a sectional view of a conventional device.
１…固定主接点、２…固定アーク接点、３…可動接点、
４…固定側シールド、７…アーク、８…永久磁石1: fixed main contact, 2: fixed arc contact, 3: movable contact,
4 ... fixed side shield, 7 ... arc, 8 ... permanent magnet
───────────────────────────────────────────────────── フロントページの続き (72)発明者 堀之内 克彦 東京都千代田区丸の内二丁目２番３号 三 菱電機株式会社内 (72)発明者 前田 恭宏 東京都千代田区丸の内二丁目２番３号 三 菱電機株式会社内 Ｆターム(参考） 5G017 BB02 5G027 AA03 BB03 DA02 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Katsuhiko Horinouchi 2-3-2 Marunouchi, Chiyoda-ku, Tokyo Mitsui Electric Co., Ltd. (72) Inventor Yasuhiro Maeda 2-3-2 Marunouchi, Chiyoda-ku, Tokyo 3 Rishi Electric Co., Ltd. F-term (reference) 5G017 BB02 5G027 AA03 BB03 DA02
Claims (5)
内に配置され、筒状に形成した固定主接点と開極時にア
ークの発生する固定アーク接点とを有する固定接点、駆
動装置により駆動され、上記固定接点と接離する可動接
点、および上記固定接点の周囲にシールドを設けたガス
絶縁断路器において、上記固定主接点の内側に筒状に形
成した上記固定アーク接点を同心円的に配置して、上記
固定主接点と上記固定アーク接点との間を上記可動接点
が進退するように形成し、上記固定アーク接点の内部に
上記駆動方向に沿って磁極の極性が配列されるように永
久磁石を設けたことを特徴とするガス絶縁断路器。1. A tank filled with an insulating gas, a fixed contact disposed in the tank and having a cylindrical fixed main contact and a fixed arc contact generating an arc when the electrode is opened, and driven by a driving device. A movable contact that comes into contact with and separates from the fixed contact, and a gas-insulated disconnector provided with a shield around the fixed contact, wherein the fixed arc contact formed in a cylindrical shape inside the fixed main contact is concentrically arranged. The permanent magnet is formed so that the movable contact moves forward and backward between the fixed main contact and the fixed arc contact, and the polarity of the magnetic pole is arranged inside the fixed arc contact along the driving direction. A gas insulated disconnector, comprising:
磁性体を配置したことを特徴とする請求項１記載のガス
絶縁開閉装置。2. The gas insulated switchgear according to claim 1, wherein a magnetic body is disposed between the fixed main contact and the shield.
内に配置され、筒状に形成した固定主接点と開極時にア
ークの発生する固定アーク接点とを有する固定接点、駆
動装置により駆動され、上記固定接点と接離する可動接
点、および上記固定接点の周囲にシールドを設けたガス
絶縁断路器において、上記固定主接点の内側に筒状に形
成した上記固定アーク接点を同心円的に配置して、上記
固定主接点と上記固定アーク接点との間を上記可動接点
が進退するように形成し、上記固定主接点の自由端近傍
外周に互いに引きつけ合う向きに２個以上の永久磁石を
対向して配置したことを特徴とするガス絶縁断路器。3. A fixed contact having a tank filled with an insulating gas, a fixed main contact disposed in the tank and having a cylindrical fixed main contact and a fixed arc contact generating an arc when the electrode is opened, and driven by a driving device. A movable contact that comes into contact with and separates from the fixed contact, and a gas-insulated disconnector provided with a shield around the fixed contact, wherein the fixed arc contact formed in a cylindrical shape inside the fixed main contact is concentrically arranged. The movable contact is formed so as to advance and retreat between the fixed main contact and the fixed arc contact, and two or more permanent magnets are opposed to each other in a direction of attracting each other to the outer periphery near the free end of the fixed main contact. A gas insulated disconnector characterized by being arranged in a position.
ことを特徴とする請求項３記載のガス絶縁開閉装置。4. The gas insulated switchgear according to claim 3, wherein a magnetic body is disposed inside the shield.
性体を複数枚配置したことを特徴とする請求項３または
４記載のガス絶縁開閉装置。5. The gas insulated switchgear according to claim 3, wherein a plurality of magnetic bodies are arranged between the shield and the fixed contact.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001139063A JP2002334636A (en) | 2001-05-09 | 2001-05-09 | Gas-insulated disconnecting switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001139063A JP2002334636A (en) | 2001-05-09 | 2001-05-09 | Gas-insulated disconnecting switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2002334636A true JP2002334636A (en) | 2002-11-22 |
Family
ID=18985903
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2001139063A Withdrawn JP2002334636A (en) | 2001-05-09 | 2001-05-09 | Gas-insulated disconnecting switch |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2002334636A (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4522490B1 (en) * | 2009-06-25 | 2010-08-11 | 三菱電機株式会社 | Gas insulated switchgear |
| WO2012093507A1 (en) * | 2011-01-07 | 2012-07-12 | 三菱電機株式会社 | Switching apparatus |
| JP2013115015A (en) * | 2011-11-30 | 2013-06-10 | Toshiba Corp | Gas insulation opening/closing apparatus |
| US8575508B2 (en) | 2010-12-16 | 2013-11-05 | Mitsubishi Electric Corporation | Current switch |
| JP2015505143A (en) * | 2011-12-21 | 2015-02-16 | アルストム テクノロジー リミテッドＡＬＳＴＯＭ Ｔｅｃｈｎｏｌｏｇｙ Ｌｔｄ | Protective device against particles generated by electric switching arc |
| JP6837607B1 (en) * | 2020-01-27 | 2021-03-03 | 三菱電機株式会社 | Gas insulation switchgear |
| US11289291B2 (en) | 2018-06-25 | 2022-03-29 | Mitsubishi Electric Corporation | Gas circuit breaker |
| WO2022230095A1 (en) * | 2021-04-28 | 2022-11-03 | 三菱電機株式会社 | Switchgear |
-
2001
- 2001-05-09 JP JP2001139063A patent/JP2002334636A/en not_active Withdrawn
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102804313B (en) * | 2009-06-25 | 2015-09-09 | 三菱电机株式会社 | Gas-insulated switchgear device |
| JP4522490B1 (en) * | 2009-06-25 | 2010-08-11 | 三菱電機株式会社 | Gas insulated switchgear |
| CN102804313A (en) * | 2009-06-25 | 2012-11-28 | 三菱电机株式会社 | Gas insulated switchgear |
| WO2010150390A1 (en) * | 2009-06-25 | 2010-12-29 | 三菱電機株式会社 | Gas insulated switchgear |
| US8878092B2 (en) | 2009-06-25 | 2014-11-04 | Mitsubishi Electric Corporation | Gas-insulated switchgear |
| US8575508B2 (en) | 2010-12-16 | 2013-11-05 | Mitsubishi Electric Corporation | Current switch |
| WO2012093507A1 (en) * | 2011-01-07 | 2012-07-12 | 三菱電機株式会社 | Switching apparatus |
| JPWO2012093507A1 (en) * | 2011-01-07 | 2014-06-09 | 三菱電機株式会社 | Switchgear |
| JP2013115015A (en) * | 2011-11-30 | 2013-06-10 | Toshiba Corp | Gas insulation opening/closing apparatus |
| JP2015505143A (en) * | 2011-12-21 | 2015-02-16 | アルストム テクノロジー リミテッドＡＬＳＴＯＭ Ｔｅｃｈｎｏｌｏｇｙ Ｌｔｄ | Protective device against particles generated by electric switching arc |
| US11289291B2 (en) | 2018-06-25 | 2022-03-29 | Mitsubishi Electric Corporation | Gas circuit breaker |
| JP6837607B1 (en) * | 2020-01-27 | 2021-03-03 | 三菱電機株式会社 | Gas insulation switchgear |
| WO2021152646A1 (en) * | 2020-01-27 | 2021-08-05 | 三菱電機株式会社 | Gas-insulated switchgear |
| WO2022230095A1 (en) * | 2021-04-28 | 2022-11-03 | 三菱電機株式会社 | Switchgear |
| JP7221460B1 (en) * | 2021-04-28 | 2023-02-13 | 三菱電機株式会社 | switchgear |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A300 | Withdrawal of application because of no request for examination |
Free format text: JAPANESE INTERMEDIATE CODE: A300 Effective date: 20080805 |