JP6596360B2 - Gas circuit breaker - Google Patents

Gas circuit breaker Download PDF

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JP6596360B2
JP6596360B2 JP2016035031A JP2016035031A JP6596360B2 JP 6596360 B2 JP6596360 B2 JP 6596360B2 JP 2016035031 A JP2016035031 A JP 2016035031A JP 2016035031 A JP2016035031 A JP 2016035031A JP 6596360 B2 JP6596360 B2 JP 6596360B2
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side rod
electrode
driven
driving
driving side
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JP2017152277A (en
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雄輝 中井
将直 寺田
一 浦井
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Hitachi Ltd
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本発明は電力系統における短絡電流の遮断に用いるガス遮断器に関する。特に、電極を互いに反対方向に駆動する双方向駆動機構を有するガス遮断器に関する。   The present invention relates to a gas circuit breaker used for interrupting a short-circuit current in a power system. In particular, the present invention relates to a gas circuit breaker having a bidirectional drive mechanism for driving electrodes in opposite directions.

高電圧の電力系統に用いるガス遮断器は、開極動作途中の消弧ガスの圧力上昇を利用し、圧縮ガスを電極間に生じるアークに吹き付けることで電流を遮断するパッファ形と呼ばれるものが一般的に用いられている。   A gas circuit breaker used for a high-voltage power system is generally called a puffer type that uses the pressure rise of the arc-extinguishing gas during the opening operation and blows the compressed gas against the arc generated between the electrodes to cut off the current. Has been used.

消弧ガスの圧力を高めるには、油圧やばねなど駆動源となる操作器のエネルギーにより電極と連結されたパッファシリンダを駆動し、パッファピストンとの間の圧縮室の容積を小さくすることで消弧ガスを圧縮し、圧力を高める方法とアークによる熱で消弧ガスを加熱し、圧力を高める方法がある。   In order to increase the pressure of the arc extinguishing gas, the buffer cylinder connected to the electrode is driven by the energy of the actuator as a driving source such as hydraulic pressure and a spring, and the volume of the compression chamber between the buffer piston is reduced. There are a method of compressing the arc gas and increasing the pressure, and a method of increasing the pressure by heating the arc-extinguishing gas with heat from the arc.

パッファ形ガス遮断器遮断性能を向上させるためには開極速度を大きくすることが必要だが、そのためには操作器をより駆動力の大きいものにする必要があり、装置が大型化しコスト増となる。   To improve the breaker performance of the puffer-type gas circuit breaker, it is necessary to increase the opening speed, but for that purpose, it is necessary to make the operating device larger in driving force, which increases the size and cost of the device. .

そこで、従来固定されていた被駆動側の電極を開極方向と反対方向に駆動する双方向駆動方式が提案されている。例えば、駆動側電極と被駆動側電極の速度比を任意に設定可能な構造としてはさみ型レバーと溝カムを用いたものがある(特許文献1)。   In view of this, a bidirectional driving method has been proposed in which the electrode on the driven side, which has been fixed conventionally, is driven in the direction opposite to the opening direction. For example, as a structure in which the speed ratio between the driving side electrode and the driven side electrode can be arbitrarily set, there is one using a scissor type lever and a groove cam (Patent Document 1).

この発明では、被駆動側電極を構成する双駆動機構が、二股コントロールレバー40、第一の連結軸18、プレート56、ピン21により概略構成される。第一の連結軸18が絶縁ノズル5とボルトで締結されている。第一の連結軸18はプレート56で開閉動作方向以外の動作を規定される。ピン21がプレート56に設けられた連結リンクガイド23内を移動するように構成されている。二股コントロールレバー40が第一の連結軸18に設けられたジャーナル35の動作に伴って回転し、二股コントロールレバー40に連結した第二のアークコンタクト25が開極方向に移動する。   In the present invention, the double drive mechanism that constitutes the driven side electrode is roughly constituted by the bifurcated control lever 40, the first connecting shaft 18, the plate 56, and the pin 21. The first connecting shaft 18 is fastened to the insulating nozzle 5 with a bolt. The first connecting shaft 18 is regulated by the plate 56 in an operation other than the opening / closing operation direction. The pin 21 is configured to move in the connecting link guide 23 provided on the plate 56. The bifurcated control lever 40 rotates with the operation of the journal 35 provided on the first connecting shaft 18, and the second arc contact 25 connected to the bifurcated control lever 40 moves in the opening direction.

米国特許第6177643号明細書US Pat. No. 6,177,643

特許文献1に係る双方向駆動方式は、溝カムを用いて被駆動側の開閉動作を可能とするものである。正常な開閉動作のためには、第一の連結軸18に対し、プレート56に設けられた連結リンクガイド23内を運動するピン21が垂直に保たれることが重要となる。   The bidirectional drive method according to Patent Document 1 enables opening and closing operations on the driven side using a groove cam. For a normal opening / closing operation, it is important that the pin 21 moving in the connection link guide 23 provided on the plate 56 is kept perpendicular to the first connection shaft 18.

絶縁ノズル5と第一の連結軸18がボルト締結され、第一の連結軸18はさらにプレート56に挟まれている。このため、第一の連結軸18は絶縁ノズル5及びプレート56により、2カ所で固定される。このような構成により、第一の連結軸18は開閉動作方向以外の動作が規定されている。   The insulating nozzle 5 and the first connecting shaft 18 are fastened with bolts, and the first connecting shaft 18 is further sandwiched between plates 56. For this reason, the first connecting shaft 18 is fixed at two locations by the insulating nozzle 5 and the plate 56. With such a configuration, the first connecting shaft 18 is regulated in an operation other than the opening / closing operation direction.

そのため、第一の連結軸18を操作器側と連結する際に第一の連結軸18とプレート56が平行に構成されることが必要であり、かつ第一の連結軸18とピン21が垂直になるように調整する必要がある。これにより、組立工数が増加するという課題が生じる。また、上記平行が保たれていないと遮断動作時に第一の連結軸18に作用する応力が大きくなるという課題がある。   Therefore, when connecting the 1st connecting shaft 18 with the operation device side, it is necessary for the 1st connecting shaft 18 and the plate 56 to be comprised in parallel, and the 1st connecting shaft 18 and the pin 21 are vertical. It is necessary to adjust to become. Thereby, the subject that an assembly man-hour increases arises. Further, if the parallelism is not maintained, there is a problem that the stress acting on the first connecting shaft 18 during the blocking operation increases.

前記課題を解決するために、本発明に係るガス遮断器は、密封タンク20内に駆動側電極と被駆動側電極を有し、駆動側電極は駆動側主電極2とノズル8と駆動側アーク電極4を有し、被駆動側電極は被駆動側主電極3と被駆動側アーク電極5を有し、駆動側アーク電極4は操作器1に接続し、前記被駆動側アーク電極5は双方向駆動機構部に連結する。双方向駆動機構部は、駆動側電極からの駆動力を受ける駆動側ロッド10と、被駆動側アーク電極5に接続した被駆動側ロッド16と、駆動側ロッド10の動作に対して被駆動側ロッド16を反対方向に動作させる回転レバーと、駆動側ロッド10と被駆動側ロッド16の動作を規定するガイド17とを備え、駆動側ロッド10は、ノズル8に設けられた駆動側ロッド連結部材18と遊嵌される。   In order to solve the above-mentioned problem, the gas circuit breaker according to the present invention has a driving side electrode and a driven side electrode in the sealed tank 20, and the driving side electrode is the driving side main electrode 2, the nozzle 8, and the driving side arc. An electrode 4, the driven side electrode has a driven side main electrode 3 and a driven side arc electrode 5, the driving side arc electrode 4 is connected to the operating device 1, and the driven side arc electrode 5 is both Connect to the direction drive mechanism. The bidirectional drive mechanism unit includes a driving side rod 10 that receives a driving force from the driving side electrode, a driven side rod 16 connected to the driven side arc electrode 5, and a driven side with respect to the operation of the driving side rod 10. A rotation lever that moves the rod 16 in the opposite direction, and a guide 17 that regulates the operation of the driving side rod 10 and the driven side rod 16, and the driving side rod 10 is a driving side rod connecting member provided in the nozzle 8. 18 is loosely fitted.

本発明によれば、駆動側ロッドは駆動側ロッド連結部材に完全に固定されておらず、連結後も駆動側ロッドは回転自在となるため、駆動側ロッド内を運動するピンとの平行を常に保つことが可能となる。これにより、遮断動作時に駆動側ロッドに作用する力を低減できる。さらに、溝カムとピンの平行を保つ調整が不要となり、組立工数を低減できる。   According to the present invention, the drive side rod is not completely fixed to the drive side rod connecting member, and the drive side rod becomes rotatable even after being connected, so that the drive side rod is always kept parallel to the pin moving in the drive side rod. It becomes possible. Thereby, the force which acts on a drive side rod at the time of interruption | blocking operation | movement can be reduced. Furthermore, adjustment to keep the groove cam and the pin parallel is unnecessary, and the number of assembly steps can be reduced.

本発明を適用したガス遮断器の投入状態を示す断面図の一例である。It is an example of sectional drawing which shows the injection state of the gas circuit breaker to which this invention is applied. 本発明の一実施例の分解斜視図である。It is a disassembled perspective view of one Example of this invention. 本発明の一実施例の断面図である。It is sectional drawing of one Example of this invention. 図3に示す駆動側ロッド連結部材と駆動側ロッドが遊嵌している状態を示す拡大図である。FIG. 4 is an enlarged view showing a state where the driving side rod connecting member and the driving side rod shown in FIG. 3 are loosely fitted. 図4に対し、駆動側ロッド連結部材と駆動側ロッドが遊嵌していない状態を示す拡大図である。FIG. 5 is an enlarged view showing a state where the driving side rod connecting member and the driving side rod are not loosely fitted to FIG. 4. 駆動側ロッド10をガイドで規定した状態を示す正面図である。It is a front view which shows the state which prescribed | regulated the drive side rod 10 with the guide. 駆動側ロッド10固定時にねじれが生じた状態を示す図である。It is a figure which shows the state which the twist produced when the drive side rod 10 was fixed.

以下、図面を参照して本発明の一実施形態に係るガス遮断器を説明する。なお、下記は実施の例であり、発明の内容を下記具体的態様に限定する趣旨ではない。以下の実施例では、機械的圧縮室及び熱膨張室を有するガス遮断器の例を挙げて説明するが、本願発明を、例えば、機械的圧縮室のみを有するガス遮断器に適用することも可能である。   Hereinafter, a gas circuit breaker according to an embodiment of the present invention will be described with reference to the drawings. In addition, the following is an example of implementation and is not intended to limit the content of the invention to the following specific embodiment. In the following embodiment, an example of a gas circuit breaker having a mechanical compression chamber and a thermal expansion chamber will be described. However, the present invention can be applied to, for example, a gas circuit breaker having only a mechanical compression chamber. It is.

図1に示すように、ガス遮断器は、駆動側が操作器1にシャフト6の一端が連結される。シャフト6の他端は駆動側アーク電極4に連結される。駆動側アーク電極4と同軸状にノズル8及び駆動側主電極2が設けられる。駆動側主電極2が連結するシリンダの内側の空間に熱膨張室9が形成される。熱膨張室9が摺動するシリンダの内側の空間には機械的圧縮室7が形成される。   As shown in FIG. 1, in the gas circuit breaker, one end of the shaft 6 is connected to the operating device 1 on the driving side. The other end of the shaft 6 is connected to the drive side arc electrode 4. A nozzle 8 and a drive side main electrode 2 are provided coaxially with the drive side arc electrode 4. A thermal expansion chamber 9 is formed in the space inside the cylinder to which the drive side main electrode 2 is connected. A mechanical compression chamber 7 is formed in the space inside the cylinder in which the thermal expansion chamber 9 slides.

被駆動側は、被駆動側主電極3及び被駆動側アーク電極5が同軸状に形成される。被駆動側アーク電極5は双駆動機構により駆動側電極と反対方向に駆動される。具体的には、双駆動機構部を構成する駆動側ロッド10は駆動側ロッド連結部材18を介して絶縁ノズル8と連結され、前記駆動側連結部材18は固定リング19により前記絶縁ノズル8に締結され、双駆動機構部を構成する被駆動側ロッド16の一端が被駆動側アーク電極5に連結される。駆動側電極と被駆動側アーク電極5が回転レバー(図1ではガイド17に隠れて見えない。)の回転軸を挟んで連結されることで、それぞれが反対方向に駆動される。   On the driven side, the driven side main electrode 3 and the driven side arc electrode 5 are formed coaxially. The driven side arc electrode 5 is driven in the opposite direction to the driving side electrode by a dual drive mechanism. Specifically, the drive side rod 10 constituting the dual drive mechanism is connected to the insulating nozzle 8 via a drive side rod connecting member 18, and the drive side connecting member 18 is fastened to the insulating nozzle 8 by a fixing ring 19. Then, one end of the driven side rod 16 constituting the dual drive mechanism is connected to the driven side arc electrode 5. The driving-side electrode and the driven-side arc electrode 5 are connected to each other with the rotating shaft of the rotating lever (invisible in the guide 17 in FIG. 1) sandwiched therebetween, so that each is driven in the opposite direction.

図1に示す遮断部の投入状態では、操作器1の油圧やばねによる駆動源により、駆動側主電極2と被駆動側主電極3を導通させる位置に設定され、通常時の電力系統の回路を構成する。   In the closed state shown in FIG. 1, the driving power source is driven by the hydraulic pressure of the operating device 1 or a spring, and the driving main electrode 2 and the driven main electrode 3 are set in a conductive position. Configure.

落雷などによる短絡電流を遮断する際には、操作器1を開極方向に駆動し、シャフト6を介し駆動側主電極2及び被駆動側主電極3を引き離す。これらの2つの主電極が解離した後、駆動側アーク電極4と被駆動側アーク電極5が解離し、その間にアークが生成される。   When interrupting the short-circuit current due to lightning or the like, the operating device 1 is driven in the opening direction, and the driving side main electrode 2 and the driven side main electrode 3 are separated through the shaft 6. After these two main electrodes are dissociated, the driving side arc electrode 4 and the driven side arc electrode 5 are dissociated, and an arc is generated therebetween.

この2つのアーク電極間に生成されるアークは、機械的圧縮室7による機械的な消弧ガス吹き付けと熱膨張室9によるアーク熱を利用した消弧ガス吹き付けにより消弧され、電流が遮断される。   The arc generated between the two arc electrodes is extinguished by mechanical arc extinguishing gas blowing by the mechanical compression chamber 7 and arc extinguishing gas blowing utilizing the arc heat by the thermal expansion chamber 9, and the current is cut off. The

図2に本発明の実施形態における駆動側ロッド10、駆動側ロッド連結部材18、固定リング19、駆動側ロッド固定板21および絶縁ノズル8の分解図を示す。   FIG. 2 shows an exploded view of the driving side rod 10, the driving side rod connecting member 18, the fixing ring 19, the driving side rod fixing plate 21 and the insulating nozzle 8 in the embodiment of the present invention.

駆動側ロッド10の先端には円柱部111と雄ねじ部112が設けられている。円柱部111は駆動側ロッド連結部材18に設けた穴113より長くなっている。   A cylindrical portion 111 and a male screw portion 112 are provided at the tip of the driving side rod 10. The cylindrical portion 111 is longer than the hole 113 provided in the drive side rod connecting member 18.

駆動側ロッド連結部材18には駆動側ロッド10に設けた円柱部111を差し込む穴113と駆動側ロッド10の円柱部111の抜けを防止するための駆動側ロッド固定板21を取り付ける切り込みが設けられている。   The drive side rod connecting member 18 is provided with a hole 113 for inserting the cylindrical portion 111 provided in the drive side rod 10 and a notch for attaching the drive side rod fixing plate 21 for preventing the cylindrical portion 111 of the drive side rod 10 from coming off. ing.

駆動側ロッド固定板21には駆動側ロッド10の円柱部111を差し込む穴114が設けられている。   The drive side rod fixing plate 21 is provided with a hole 114 into which the cylindrical portion 111 of the drive side rod 10 is inserted.

駆動側ロッド10は駆動側ロッド連結部材18、固定リング19および駆動側ロッド固定板21を介して絶縁ノズル8に連結される。絶縁ノズル8先端のくぼみに、2つの半割の固定リング19をはめ込む。駆動側ロッド連結部材18及び固定リング19は、例えば、アルミニウムのような軽量の金属部材であるのが好ましい。   The driving side rod 10 is connected to the insulating nozzle 8 via a driving side rod connecting member 18, a fixing ring 19 and a driving side rod fixing plate 21. Two halved fixing rings 19 are fitted in the recesses at the tip of the insulating nozzle 8. The driving side rod connecting member 18 and the fixing ring 19 are preferably light metal members such as aluminum.

駆動側ロッド連結部材18と2つの半割の固定リング19はボルトで締結される。駆動側ロッド10の円柱部111が駆動側ロッド連結部材18に設けた穴113に差し込まれる。駆動側ロッド固定板21を駆動側ロッド10の円柱部111に差し込み、ナット22で固定する(図3参照)。   The driving side rod connecting member 18 and the two half split fixing rings 19 are fastened with bolts. The cylindrical portion 111 of the drive side rod 10 is inserted into a hole 113 provided in the drive side rod connecting member 18. The drive side rod fixing plate 21 is inserted into the cylindrical portion 111 of the drive side rod 10 and fixed with a nut 22 (see FIG. 3).

このとき、円柱部111とナット22の間に、ナット22よりも駆動側ロッド連結部材18との接触面積の広い駆動側ロッド固定板21を設けることで、ナット22の座面を確保しつつ、駆動側ロッド連結部材18の動作による衝撃を広い接触面積で受けることが可能となる。   At this time, by providing the driving side rod fixing plate 21 having a larger contact area with the driving side rod coupling member 18 than the nut 22 between the cylindrical portion 111 and the nut 22, while ensuring the seating surface of the nut 22, It is possible to receive an impact due to the operation of the drive side rod connecting member 18 with a wide contact area.

駆動側ロッド10の円柱部111を駆動側ロッド連結部材18の穴113の深さより長くすることで、駆動側ロッド10は駆動側ロッド連結部材18に対し遊嵌される。これによって、駆動側ロッド10は駆動側ロッド連結部材18に対し、回転自在に固定されることとなる(図4参照)。   By making the cylindrical portion 111 of the driving side rod 10 longer than the depth of the hole 113 of the driving side rod connecting member 18, the driving side rod 10 is loosely fitted to the driving side rod connecting member 18. As a result, the drive side rod 10 is rotatably fixed to the drive side rod connecting member 18 (see FIG. 4).

このように駆動側ロッド10を回転自在に固定する構成の効果を、そうでない場合と比較して説明する。   Thus, the effect of the structure which fixes the drive side rod 10 rotatably is demonstrated compared with the case where it is not so.

図5に、駆動側ロッド10の先端に円柱部111がなく、雄ねじ部112のみで構成されている場合を示す。この場合、駆動側ロッド10の先端は、駆動側ロッド固定板21を介さずに駆動側ロッド連結部材18に直接固定されるため、図7に示すように、駆動側ロッド10に角度aのずれが生じた状態で固定された状態となる。   FIG. 5 shows a case where the driving rod 10 has no cylindrical portion 111 at the tip and is constituted only by the male screw portion 112. In this case, since the tip of the drive side rod 10 is directly fixed to the drive side rod coupling member 18 without the drive side rod fixing plate 21 being interposed, as shown in FIG. It will be in the state fixed in the state which occurred.

駆動側ロッド10の一端を2枚のガイド17で左右から規定するため、ガイド17で抑えられている部分では角度aのずれは解消される(図6参照)。このとき、駆動側ロッド10には駆動側ロッド連結部材18に固定されている他端とガイド17で規定されている一端の間でねじれが生じた状態となる(図7参照)。   Since one end of the drive side rod 10 is defined by the two guides 17 from the left and right, the shift of the angle a is eliminated at the portion restrained by the guides 17 (see FIG. 6). At this time, the drive side rod 10 is twisted between the other end fixed to the drive side rod connecting member 18 and one end defined by the guide 17 (see FIG. 7).

角度aが大きくなると、遮断動作時に駆動ロッド10に作用する応力が大きくなり、この応力が長さ、材質によって決まる降伏点を大きく越えると塑性変形を引き起こし、部品の固渋や破断に至る。   As the angle a increases, the stress acting on the drive rod 10 during the shut-off operation increases, and when this stress greatly exceeds the yield point determined by the length and material, plastic deformation is caused, leading to part astringency and breakage.

本発明の駆動側ロッド10先端に円柱部111を設け、駆動側ロッド固定板21を介して駆動側ロッド連結部材18に連結し、連結後、駆動側ロッド10を回転自在にすることで、ガイド17で規定したときにねじれが生じても駆動側ロッド10が回転し、ねじれを解消することが可能となるため、上記の故障のおそれを低減することができる。   A cylindrical portion 111 is provided at the distal end of the drive side rod 10 of the present invention, connected to the drive side rod connecting member 18 via the drive side rod fixing plate 21, and after the connection, the drive side rod 10 is made rotatable so that the guide Even if a twist occurs as defined in 17, the drive side rod 10 rotates and the twist can be eliminated. Therefore, the risk of the above-mentioned failure can be reduced.

さらに、溝カム11の軸と駆動側可動ピン13の軸の垂直を保つ調整が不要となるので、組立工数を低減できる。   Furthermore, since it is not necessary to adjust the axis of the groove cam 11 and the axis of the drive side movable pin 13 to be vertical, the number of assembling steps can be reduced.

なお、上記実施例では駆動側ロッド10の円柱部111に雌ねじを設け、駆動側ロッド固定板21を円柱部に差し込み、ボルト締結した構成でも同様の効果を発揮する。   In addition, in the said Example, the same effect is exhibited also in the structure which provided the internal thread in the cylindrical part 111 of the drive side rod 10, inserted the drive side rod fixing plate 21 in the cylindrical part, and bolted.

1・・・操作器、2・・・駆動側主電極、3・・・被駆動側主電極、4・・・駆動側アーク電極、5・・・被駆動側アーク電極、6・・・シャフト、7・・・機械的圧縮室、8・・・絶縁ノズル、9・・・熱膨張室、10・・・駆動側ロッド、11・・・溝カム、13・・・駆動側可動ピン、14・・・被駆動側可動ピン、15・・・レバー回転ピン、16・・・被駆動側ロッド、17・・・ガイド、18・・・駆動側ロッド連結部材、19・・・固定リング、20・・・タンク、21・・・駆動側ロッド固定板、22・・・ナット、111・・・円柱部、112・・・雄ねじ部、113、114・・・貫通孔   DESCRIPTION OF SYMBOLS 1 ... Operating device, 2 ... Drive side main electrode, 3 ... Driven side main electrode, 4 ... Drive side arc electrode, 5 ... Driven side arc electrode, 6 ... Shaft 7 ... Mechanical compression chamber, 8 ... Insulating nozzle, 9 ... Thermal expansion chamber, 10 ... Drive side rod, 11 ... Groove cam, 13 ... Drive side movable pin, 14 ... Driven side movable pin, 15 ... Lever rotation pin, 16 ... Drivable side rod, 17 ... Guide, 18 ... Driving side rod connecting member, 19 ... Fixing ring, 20 ... Tank, 21 ... Drive side rod fixing plate, 22 ... Nut, 111 ... Cylindrical part, 112 ... Male thread part, 113,114 ... Through hole

Claims (4)

密封タンク内に駆動側電極と被駆動側電極を対向して設け、前記駆動側電極は駆動側主電極とノズルと駆動側アーク電極を有し、前記被駆動側電極は被駆動側主電極と被駆動側アーク電極を有し、前記駆動側アーク電極は操作器に接続され、前記被駆動側アーク電極は双方向駆動機構部に連結され、
前記双方向駆動機構部は、前記駆動側電極からの駆動力を受ける駆動側ロッドと、前記被駆動側アーク電極に接続した被駆動側ロッドと、前記駆動側ロッドの動作に対して前記被駆動側ロッドを反対方向に動作させる回転レバーと、前記駆動側ロッドと前記被駆動側ロッドの動作を規定するガイドとを備え、
前記駆動側ロッドは、前記ノズルに設けられた駆動側ロッド連結部材と遊嵌されたガス遮断器において、
前記駆動側ロッドの前記駆動側ロッド連結部材と遊嵌される先端には円柱部が設けられており、前記円柱部は前記駆動側ロッド連結部材に設けられた貫通孔の深さより長いことを特徴とするガス遮断器。
A driving side electrode and a driven side electrode are provided opposite to each other in a sealed tank, the driving side electrode has a driving side main electrode, a nozzle, and a driving side arc electrode, and the driven side electrode is connected to the driven side main electrode. A driven-side arc electrode, the driven-side arc electrode is connected to an operating device, and the driven-side arc electrode is connected to a bidirectional drive mechanism ;
The bidirectional driving mechanism includes a driving side rod that receives a driving force from the driving side electrode, a driven side rod connected to the driven side arc electrode, and the driven side with respect to the operation of the driving side rod. A rotating lever that moves the side rod in the opposite direction, and a guide that defines the operation of the driving side rod and the driven side rod,
The drive side rod is a gas circuit breaker loosely fitted with a drive side rod connecting member provided in the nozzle ,
A cylindrical portion is provided at a tip of the driving side rod that is loosely fitted with the driving side rod connecting member, and the cylindrical portion is longer than a depth of a through hole provided in the driving side rod connecting member. A gas circuit breaker.
請求項1において、
前記円柱部は駆動側ロッド固定板を挟んで固定部材で固定されることを特徴とするガス遮断器。
In claim 1,
A gas circuit breaker characterized in that the cylindrical portion is fixed by a fixing member with a driving side rod fixing plate interposed therebetween .
請求項1において、
前記駆動側ロッド連結部材はアルミニウム金属部材であることを特徴とするガス遮断器。
In claim 1,
The gas circuit breaker according to claim 1, wherein the driving side rod connecting member is an aluminum metal member .
請求項2において、
前記駆動側ロッド連結部材はアルミニウム金属部材であることを特徴とするガス遮断器。
In claim 2,
The gas circuit breaker according to claim 1, wherein the driving side rod connecting member is an aluminum metal member .
JP2016035031A 2016-02-26 2016-02-26 Gas circuit breaker Active JP6596360B2 (en)

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