JPS5856930B2 - switchgear - Google Patents
switchgearInfo
- Publication number
- JPS5856930B2 JPS5856930B2 JP52032904A JP3290477A JPS5856930B2 JP S5856930 B2 JPS5856930 B2 JP S5856930B2 JP 52032904 A JP52032904 A JP 52032904A JP 3290477 A JP3290477 A JP 3290477A JP S5856930 B2 JPS5856930 B2 JP S5856930B2
- Authority
- JP
- Japan
- Prior art keywords
- arc
- extinguishing
- movable contact
- opening
- gas
- 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
Links
Landscapes
- Circuit Breakers (AREA)
Description
【発明の詳細な説明】
この発明はＳＦ６ガス等の消弧性流体によって消弧する
開閉装置に関するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a switchgear that extinguishes an arc using an arc-extinguishing fluid such as SF6 gas.
以下ガス開閉装置について説明する。The gas switchgear will be explained below.
一般にアークが消弧性ガスを加熱分解して生じるガス圧
力を利用して消弧する、いわゆる自刃消弧形ガス開閉装
置においては、しゃ断電流が小さく発生圧力が十分高く
ならない電流範囲ではアークの持続時間が長くなるが、
場合によってはしや断不能となる臨界電流域が存在する
ことが知られている。Generally, in so-called self-blade arc-extinguishing gas switchgears, in which the arc is extinguished using the gas pressure generated by thermally decomposing arc-extinguishing gas, the arc continues in the current range where the breaking current is small and the generated pressure is not high enough. Although it takes a long time,
It is known that in some cases there is a critical current range where the current cannot be cut off.
そこでこの点を改良するために、従来から投入動作時な
どにばね式中バッファ装置を蓄勢作動させ圧力補償する
もの、或いは接触子の開閉速度を増すよう構成したもの
などがあり、いずれも操作力の増大や複雑な構成となる
欠点があった。In order to improve this point, conventional methods have been developed that compensate for the pressure by accumulating a spring-type intermediate buffer device during the closing operation, or that are configured to increase the opening and closing speed of the contact. It had the drawbacks of increased power and a complicated structure.
この発明はこれら従来のものの欠点を解消しようとする
もので、簡単な構成で操作力が殆んど増加しない小形で
すぐれた性能の開閉器を提供する。The present invention aims to eliminate these drawbacks of the conventional ones, and provides a small switch with a simple structure, little increase in operating force, and excellent performance.
以下図面にもとづいてこの発明の一実施例を説明する。An embodiment of the present invention will be described below based on the drawings.
即ち図にむいて、１はＳＦ６等の消弧性ガスが封入され
ている容器、２は容器１内に配設され、内部に消弧性ガ
スを収納する消弧室本体２１と下部にテフロン等の絶縁
部材で形成されたガス流を案内するフローガイド部２２
とを有する消弧室、３は消弧室２内に配設された固定接
触子、４はフローガイド２１を貫通して固定接触子３に
接離自在に配設され先端にノズル部４１、開口４３より
先端側に固着され可動接触子４の開離方向に順次断面積
が増加するように形成され、ノズル部４１に続くガス通
路４２と開口４３および消弧性ガスに列する相対的移動
によってガス圧力を発生し開口４３にガス流を導く翼板
４４とからなり、閉極時に引外しばね（図示せず）を蓄
勢する可動接触子である。That is, as shown in the figure, 1 is a container filled with an arc-extinguishing gas such as SF6, and 2 is an arc-extinguishing chamber main body 21 disposed inside the container 1 that stores the arc-extinguishing gas inside, and a Teflon tube at the bottom. A flow guide part 22 that guides a gas flow formed of an insulating member such as
3 is a fixed contact disposed in the arc extinguishing chamber 2; 4 is disposed through the flow guide 21 so as to be able to freely approach and separate from the fixed contact 3; a nozzle portion 41 at the tip; A gas passage 42 that is fixed to the tip end side of the opening 43 and has a cross-sectional area that gradually increases in the direction in which the movable contact 4 is separated, and that moves relative to the gas passage 42 that continues to the nozzle part 41 and the opening 43 and the arc-extinguishing gas. It is a movable contact that includes a vane plate 44 that generates gas pressure and guides a gas flow to an opening 43, and stores a tripping spring (not shown) when the pole is closed.
全図示されていない操作機に対する引外し指令に連動し
て可動接触子４が引外しばねの駆動力を受け、下向きに
念力ロ速されながら開極する。In conjunction with a tripping command to an operating device (not shown), the movable contact 4 receives the driving force of the tripping spring and opens while being moved downward by telekinesis.
この時しゃ断電流が小さく消弧室２内の圧力が殆んど上
昇しないので、消弧室２内の圧力より翼板４４によって
発生する圧力の方が大きくなり、消弧性ガスは矢印方向
に流れ、ガス通路４２、ノズル部４１を経て消弧室２内
に流入する。At this time, the breaking current is small and the pressure inside the arc extinguishing chamber 2 hardly rises, so the pressure generated by the vane plate 44 becomes greater than the pressure inside the arc extinguishing chamber 2, and the arc extinguishing gas flows in the direction of the arrow. The gas flows through the gas passage 42 and the nozzle part 41 into the arc extinguishing chamber 2 .
しかもアークは小電流で形成されているため、消弧性ガ
スの僅かな圧力差による流動程度の流動拡散で容易に消
弧する。Moreover, since the arc is formed with a small current, it is easily extinguished by the flow diffusion of the arc-extinguishing gas due to a slight pressure difference.
上記のようにこの発明による開閉装置はＳＦ６等の消弧
性流体が封入された容器内に接離自在の一対の接触子を
内蔵する消弧室を配設し、接触子と消弧性流体との相対
的移動に応じて消弧室内に消弧性流体を導くよう構成し
たもので、簡単な構造で小電流しゃ断性能を向上するこ
とができる。As described above, the switchgear according to the present invention has an arc-extinguishing chamber containing a pair of contacts that can be moved in and out of contact with each other in a container filled with an arc-extinguishing fluid such as SF6. The arc-extinguishing fluid is introduced into the arc-extinguishing chamber according to the relative movement between the arc-extinguishing fluid and the arc-extinguishing fluid, and the small current interrupting performance can be improved with a simple structure.
図はこの発明の一実施例を示す要部断面図である。
図中１は容器、２は消弧室、３は固定接触子、４は可動
接触子、４１はノズル部、４２はガス通路、４３は開口
、４４は翼板である。The figure is a sectional view of a main part showing an embodiment of the present invention. In the figure, 1 is a container, 2 is an arc extinguishing chamber, 3 is a fixed contact, 4 is a movable contact, 41 is a nozzle part, 42 is a gas passage, 43 is an opening, and 44 is a blade plate.
Claims (1)
弧性流体が収納された消弧室、との消弧室内に配設され
互に接離自在な一対の固定接触子と可動接触子を備え、
上記可動接触子内に開口を介して容器内部に通じる流体
通路を形成するとともに、上記可動接触子の上記開口よ
り先端側に上記可動接触子の開離方向に順次断面積が増
加するように形成された翼板を設け、上記開口近傍に移
動時に流体圧力を発生させるようにしたことを特徴とす
る開閉装置。1. An arc-extinguishing chamber disposed in a container filled with an arc-extinguishing fluid and containing the arc-extinguishing fluid inside; Equipped with a movable contact,
A fluid passage communicating with the inside of the container via an opening is formed in the movable contact, and a cross-sectional area is formed on the distal end side of the opening of the movable contact so as to gradually increase in the direction in which the movable contact is separated. 1. A switchgear, characterized in that said wing plate is provided with a blade plate, and is configured to generate fluid pressure near said opening when moving.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP52032904A JPS5856930B2 (en) | 1977-03-24 | 1977-03-24 | switchgear |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP52032904A JPS5856930B2 (en) | 1977-03-24 | 1977-03-24 | switchgear |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS53117755A JPS53117755A (en) | 1978-10-14 |
| JPS5856930B2 true JPS5856930B2 (en) | 1983-12-17 |
Family
ID=12371873
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP52032904A Expired JPS5856930B2 (en) | 1977-03-24 | 1977-03-24 | switchgear |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5856930B2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5444436B2 (en) * | 2012-10-05 | 2014-03-19 | 株式会社東芝 | Gas circuit breaker |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5136209Y2 (en) * | 1973-05-09 | 1976-09-06 |
-
1977
- 1977-03-24 JP JP52032904A patent/JPS5856930B2/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS53117755A (en) | 1978-10-14 |
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