JP3289272B2 - Gas circuit breaker - Google Patents
Gas circuit breakerInfo
- Publication number
- JP3289272B2 JP3289272B2 JP05677295A JP5677295A JP3289272B2 JP 3289272 B2 JP3289272 B2 JP 3289272B2 JP 05677295 A JP05677295 A JP 05677295A JP 5677295 A JP5677295 A JP 5677295A JP 3289272 B2 JP3289272 B2 JP 3289272B2
- Authority
- JP
- Japan
- Prior art keywords
- insulating
- fixed
- movable contact
- circuit breaker
- contact
- 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.)
- Expired - Fee Related
Links
- 239000000872 buffer Substances 0.000 claims description 18
- 238000007664 blowing Methods 0.000 claims description 2
- 239000000463 material Substances 0.000 claims 1
- 239000004020 conductor Substances 0.000 description 7
- 238000007689 inspection Methods 0.000 description 7
- 238000012423 maintenance Methods 0.000 description 6
- 238000009413 insulation Methods 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
Landscapes
- Circuit Breakers (AREA)
- Gas-Insulated Switchgears (AREA)
Description
【０００１】[0001]
【産業上の利用分野】本発明はガス遮断器に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a gas circuit breaker.
【０００２】[0002]
【従来の技術】図３は従来のガス遮断器の一例を示すも
ので、ＳＦ6 ガス等の絶縁ガス７が封入され、縦あるい
は横向きに配置された円筒状の金属製の容器１の軸心上
には、固定接触子２と、パッファ装置８を有する可動接
触子３とが対向して配設される。なお、パッファ装置８
は固定的に形成されたピストン９と、可動接触子３に固
着されたパッファシリンダ１０とから構成される。固定
接触子２および可動接触子３には、それぞれ導体４など
の通電部材が接続される。また、固定接触子２および可
動接触子３は、接地電位である容器１から絶縁支持する
ために、それぞれ別々のほぼ円筒状の絶縁支持物５を介
して、容器１の両端のフタ６に固定支持される。2. Description of the Related Art FIG. 3 shows an example of a conventional gas circuit breaker, in which an insulating gas 7 such as SF6 gas is sealed, and is disposed on the axis of a cylindrical metal container 1 arranged vertically or horizontally. , A fixed contact 2 and a movable contact 3 having a puffer device 8 are disposed to face each other. The puffer device 8
Is composed of a fixedly formed piston 9 and a puffer cylinder 10 fixed to the movable contact 3. A conductive member such as a conductor 4 is connected to each of the fixed contact 2 and the movable contact 3. Further, the fixed contact 2 and the movable contact 3 are fixed to the lids 6 at both ends of the container 1 via separate substantially cylindrical insulating supports 5 to insulate and support the container 1 at the ground potential. Supported.
【０００３】このガス遮断器の開路操作を行う場合に
は、図３に示す閉路状態において、図示されない操作装
置により、可動接触子３を右方向に移動させる。このと
き、パッファシリンダ１０も可動接触子３と一体に右方
向に移動するので、パッファシリンダ１０内の絶縁ガス
７がピストン９によって圧縮される。そして、可動接触
子３が固定接触子２から開離したときに発生するアーク
に対して、圧縮された絶縁ガス７が吹付けられて消弧さ
れる。When the gas circuit breaker is opened, the movable contact 3 is moved rightward by an operating device (not shown) in the closed state shown in FIG. At this time, the puffer cylinder 10 also moves rightward integrally with the movable contact 3, so that the insulating gas 7 in the puffer cylinder 10 is compressed by the piston 9. Then, the compressed insulating gas 7 is blown against the arc generated when the movable contact 3 is separated from the fixed contact 2 to extinguish the arc.
【０００４】[0004]
【発明が解決しようとする課題】上述した従来のガス遮
断器においては、固定接触子２および可動接触子３は、
それぞれ絶縁支持物５を介して容器１の両端のフタ６に
別々に固定されており、しかも複数箇所の機械公差によ
るはめ合い構造で組立られるので、両接触子２，３の芯
出し調整は大きな部品単位の作業となり、組立作業に手
間がかかる。また、固定接触子２および可動接触子３の
構成部品のうち、電流遮断によって損耗する電気接点や
ノズルなどの部品は、保守点検時に現地据付状態で交換
作業をする必要があり、その場合には、ガス遮断器が開
路状態で固定側の導体４を抜き、その後固定接触子２、
絶縁支持物５および容器１の固定側のフタ６を一体に容
器１から抜き出し、損耗部品の点検及び交換を行ってい
る。したがって、保守点検にはかなりの解体作業を要
し、手間のかかる作業となっている。そこで本発明は、
ガス遮断器の組立時における可動接触子と固定接触子の
芯出し調整作業や、保守点検時の解体作業の簡素化を図
ることを目的とする。In the conventional gas circuit breaker described above, the fixed contact 2 and the movable contact 3 are
Since they are separately fixed to the lids 6 at both ends of the container 1 via the insulating supports 5 and are assembled in a fitting structure based on a plurality of mechanical tolerances, the centering adjustment of the two contacts 2 and 3 is large. The operation is performed on a part-by-part basis, and the assembly operation takes time. In addition, among the components of the fixed contact 2 and the movable contact 3, parts such as electrical contacts and nozzles that are worn out due to current interruption need to be replaced on-site during maintenance and inspection. When the gas circuit breaker is open, the conductor 4 on the fixed side is pulled out, and then the fixed contact 2,
The insulating support 5 and the lid 6 on the fixed side of the container 1 are integrally pulled out of the container 1 to check and replace worn parts. Therefore, the maintenance and inspection require a considerable amount of dismantling work, which is a laborious work. Therefore, the present invention
An object of the present invention is to simplify the work of adjusting the centering of a movable contact and a fixed contact when assembling a gas circuit breaker and the dismantling work during maintenance and inspection.
【０００５】[0005]
【課題を解決するための手段】本発明は、以上の目的を
達成するために、絶縁ガスを封入した円筒状の容器内
で、この容器の軸心上に、固定接触子と、この固定接触
子に接離自在に対向配置された可動接触子と、パッファ
シリンダおよびピストンを有するとともに、電流遮断時
に発生するアークに対して、前記絶縁性ガスを圧縮して
吹付けて消弧するパッファ装置とを備えるガス遮断器に
おいて、前記容器を二つの円筒状の容器から形成し、ほ
ぼ円筒状に形成されて、内部に前記パッファシリンダが
形成されるとともに、外表面に環状の絶縁固定部が形成
された絶縁支持物を設け、前記絶縁固定部を前記二つの
容器の間に介在させて、前記絶縁支持物に気密に固定
し、前記固定接触子を前記絶縁支持物の一端に固着し、
前記ピストンが固着された前記可動接触子を、このピス
トンが前記パッファシリンダ内を摺動自在に、前記絶縁
支持物の他端に配設する。SUMMARY OF THE INVENTION In order to achieve the above object, the present invention provides a fixed contact, a fixed contact and a fixed contact in a cylindrical container filled with an insulating gas, on the axis of the container. A puffer device that has a movable contactor that is disposed so as to be able to freely contact with and separate from the armature, has a puffer cylinder and a piston, and extinguishes the arc generated by compressing and blowing the insulating gas against an arc generated when current is interrupted. In the gas circuit breaker provided with, the container is formed from two cylindrical containers, is formed substantially cylindrical, the puffer cylinder is formed inside, and an annular insulating fixing portion is formed on the outer surface Provided insulating support, the insulating fixing portion is interposed between the two containers, airtightly fixed to the insulating support, the fixed contact is fixed to one end of the insulating support,
The movable contact to which the piston is fixed is disposed at the other end of the insulating support so that the piston can slide inside the puffer cylinder.
【０００６】[0006]
【作用】上記本発明のガス遮断器においては、一つの絶
縁支持物に固定接触子および可動接触子が配設されるの
で、両接触子の芯出し調整の作業性は、絶縁支持物の部
品精度によって決り、絶縁支持物の寸法精度を高くする
ことによって、その作業性を大幅に向上させることがで
きる。また、保守点検時には、固定接触子および可動接
触子を容器内から容易に引出すことができるので、両接
触子の電気接点およびノズル等の交換が容易になる。In the gas circuit breaker according to the present invention, since the fixed contact and the movable contact are provided on one insulating support, the workability of centering adjustment of both contacts is improved by the parts of the insulating support. The workability can be greatly improved by increasing the dimensional accuracy of the insulating support, which is determined by the accuracy. Further, at the time of maintenance and inspection, since the fixed contact and the movable contact can be easily pulled out from the inside of the container, the replacement of the electrical contacts and the nozzles of both contacts becomes easy.
【０００７】[0007]
【実施例】図１および図２は本発明のガス遮断器の一実
施例を示すもので、図１は閉路状態、図２は開路操作途
中の状態をそれぞれ示す。これらの図において、二つの
円筒状の金属製の容器１１ａ，１１ｂはそれぞれ横向き
に配置される。絶縁支持物１５ａはほぼ円筒状に形成さ
れており、その外表面にはほぼ環状の絶縁固定部１５ｂ
が形成される。絶縁固定部１５ｂは二つの容器１１ａ，
１１ｂのフランジ間に介在され、容器１１ａ，１１ｂの
両側からボルトなどによって締付けることにより、絶縁
支持物１５ａが容器１１ａ，１１ｂに気密に固定され
る。絶縁支持物１５ａの中空部には、パッファシリンダ
２０が形成されるとともに、その一端には固定接触子１
２が取付けられる。可動接触子１３にはほぼ中央部にピ
ストン１９が固着されており、ピストン１９がパッファ
シリンダ２０内を摺動自在で、かつその先端部が固定接
触子１２に接離するように、可動接触子１３が絶縁支持
物１５ａに取付けられる。また、導体４は導体接続部１
８により、固定接触子１２および可動接触子１３にそれ
ぞれ接続される。なお、１７は操作装置で、可動接触子
１３の他端に連結される。1 and 2 show an embodiment of a gas circuit breaker according to the present invention. FIG. 1 shows a closed state, and FIG. 2 shows a state during an open operation. In these figures, two cylindrical metal containers 11a and 11b are respectively arranged horizontally. The insulating support 15a is formed in a substantially cylindrical shape, and has a substantially annular insulating fixing portion 15b on its outer surface.
Is formed. The insulating fixing part 15b is composed of two containers 11a,
The insulating support 15a is airtightly fixed to the containers 11a and 11b by being interposed between the flanges of the containers 11b and being tightened with bolts or the like from both sides of the containers 11a and 11b. A puffer cylinder 20 is formed in a hollow portion of the insulating support 15a, and a fixed contact 1 is formed at one end thereof.
2 is attached. A piston 19 is fixed to the movable contact 13 at a substantially central portion thereof. The movable contact 13 is slidable in the puffer cylinder 20 and the distal end thereof comes into contact with and separates from the fixed contact 12. 13 is attached to the insulating support 15a. Also, the conductor 4 is a conductor connecting portion 1
8 connects to the fixed contact 12 and the movable contact 13 respectively. An operation device 17 is connected to the other end of the movable contact 13.
【０００８】このガス遮断器の開路操作を行う場合に
は、図１に示す閉路状態において、操作装置１７によ
り、可動接触子１３を左方向に移動させる。このとき、
ピストン１９も可動接触子１３と一体に左方向に移動す
るので、パッファシリンダ２０内の絶縁ガス７がピスト
ン１９によって圧縮される。そして、可動接触子１３が
固定接触子１２から開離したときに発生するアークに対
して、圧縮された絶縁ガス７が吹付けられて消弧され
る。上記ガス遮断器においては、固定接触子１２および
可動接触子１３の両者が一つの絶縁支持物１５ａに取付
けられるので、絶縁支持物１５ａの寸法精度を高くして
おけば、組立作業の際の両接触子１２，１３の芯出し調
整作業はほとんど不要となり、組立作業性が向上する。
また、保守点検時における固定接触子１２および可動接
触子１３の解体作業は、フタ６を容器１１ａ，１１ｂか
ら取外した後、導体接続部１８を導体４から取外すこと
により、両接触子１２，１３を容器１１ａ，１１ｂ内か
ら引出すことができ、点検あるいは取替作業を行うこと
ができる。When the gas circuit breaker is opened, the movable contact 13 is moved leftward by the operating device 17 in the closed state shown in FIG. At this time,
Since the piston 19 also moves to the left integrally with the movable contact 13, the insulating gas 7 in the puffer cylinder 20 is compressed by the piston 19. Then, the compressed insulating gas 7 is blown against the arc generated when the movable contact 13 is separated from the fixed contact 12, and the arc is extinguished. In the gas circuit breaker, both the fixed contact 12 and the movable contact 13 are attached to one insulating support 15a. Therefore, if the dimensional accuracy of the insulating support 15a is increased, both the contacts during the assembling work are provided. Almost no centering adjustment work of the contacts 12 and 13 is required, and assembling workability is improved.
The disassembly work of the fixed contact 12 and the movable contact 13 during maintenance and inspection is performed by removing the lid 6 from the containers 11a and 11b and then removing the conductor connecting portion 18 from the conductor 4. Can be pulled out of the containers 11a and 11b, and inspection or replacement work can be performed.
【０００９】[0009]
【発明の効果】本発明によれば、機械公差によるはめ合
い箇所が大幅に減少するため、ガス遮断器の組立作業時
における固定接触子と可動接触子との芯出し調整作業が
容易となる。また、保守点検作業においては、導体の引
き抜きが不要となり、解体作業が容易となる。さらに、
固定接触子と可動接触子とをそれぞれ容器から絶縁支持
していた２個の絶縁支持物が不要となり、しかも中空円
筒状の絶縁支持物の内壁をパッファ装置のパッファシリ
ンダとして利用することによって、容器の長手方向およ
び径方向寸法が縮小できる。According to the present invention, the number of fitting points due to mechanical tolerance is greatly reduced, so that the work of adjusting the centering of the fixed contact and the movable contact during the assembly work of the gas circuit breaker becomes easy. Further, in the maintenance and inspection work, the conductor does not need to be pulled out, and the disassembly work becomes easy. further,
By eliminating the need for two insulating supports, each of which insulates and supports the fixed contact and the movable contact from the container, the inner wall of the hollow cylindrical insulating support is used as a puffer cylinder of the puffer device. In the longitudinal and radial directions can be reduced.
【図１】本発明のガス遮断器の実施例の閉路状態を示す
側面図である。FIG. 1 is a side view showing a closed state of an embodiment of a gas circuit breaker of the present invention.
【図２】その開路操作途中の状態を示す側面図である。FIG. 2 is a side view showing a state during the opening operation.
【図３】従来のガス遮断器の一例を示す側面図である。FIG. 3 is a side view showing an example of a conventional gas circuit breaker.
７ 絶縁ガス １１ａ，１１ｂ 容器 １２ 固定接触子 １３ 可動接触子 １５ａ 絶縁支持物 １５ｂ 絶縁固定部 １９ ピストン ２０ パッファシリンダ 7 Insulating gas 11a, 11b Vessel 12 Fixed contact 13 Movable contact 15a Insulation support 15b Insulation fixed part 19 Piston 20 Puffer cylinder
フロントページの続き (56)参考文献 特開 昭61−74223（ＪＰ，Ａ) 特開 昭61−227335（ＪＰ，Ａ) 特開 昭54−68943（ＪＰ，Ａ) (58)調査した分野(Int.Cl.7，ＤＢ名) H01H 33/70 - 33/99 H02B 13/02 Continuation of the front page (56) References JP-A-61-74223 (JP, A) JP-A-61-227335 (JP, A) JP-A-54-68943 (JP, A) (58) Fields investigated (Int) .Cl. 7 , DB name) H01H 33/70-33/99 H02B 13/02
Claims (1)
の容器の軸心上に、固定接触子と、この固定接触子に接
離自在に対向配置された可動接触子と、パッファシリン
ダおよびピストンを有するとともに、電流遮断時に発生
するアークに対して、前記絶縁性ガスを圧縮して吹付け
て消弧するパッファ装置とを備えるガス遮断器におい
て、 前記容器を二つの円筒状の容器から形成し、 ほぼ円筒状に形成されて、内部に前記パッファシリンダ
が形成されるとともに、外表面に環状の絶縁固定部が形
成された絶縁支持物を設け、 前記絶縁固定部を前記二つの容器の間に介在させて、前
記絶縁支持物に気密に固定し、 前記固定接触子を前記絶縁支持物の一端に固着し、 前記ピストンが固着された前記可動接触子を、このピス
トンが前記パッファシリンダ内を摺動自在に、前記絶縁
支持物の他端に配設した、 ことを特徴とするガス遮断器。1. A fixed contact, a movable contact opposed to and detachable from the fixed contact on an axis of the container in a cylindrical container filled with an insulating gas, and a puffer cylinder. And a puffer device having a piston and extinguishing the arc by compressing and blowing the insulating gas with respect to the arc generated at the time of current interruption, wherein the container is formed from two cylindrical containers. Forming an insulative support having a substantially cylindrical shape, wherein the puffer cylinder is formed inside, and an annular insulating fixing portion is formed on the outer surface, and the insulating fixing portion is formed of the two containers. The movable contact having the piston fixed thereto is fixed to the insulating support in an airtight manner, the fixed contact is fixed to one end of the insulating support, The slidably the Sunda, is disposed at the other end of said insulating support material, a gas circuit breaker, characterized in that.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP05677295A JP3289272B2 (en) | 1995-02-22 | 1995-02-22 | Gas circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP05677295A JP3289272B2 (en) | 1995-02-22 | 1995-02-22 | Gas circuit breaker |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH08227640A JPH08227640A (en) | 1996-09-03 |
| JP3289272B2 true JP3289272B2 (en) | 2002-06-04 |
Family
ID=13036772
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP05677295A Expired - Fee Related JP3289272B2 (en) | 1995-02-22 | 1995-02-22 | Gas circuit breaker |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3289272B2 (en) |
-
1995
- 1995-02-22 JP JP05677295A patent/JP3289272B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH08227640A (en) | 1996-09-03 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |