JPS6047315A - Gas breaker - Google Patents
Gas breakerInfo
- Publication number
- JPS6047315A JPS6047315A JP15323483A JP15323483A JPS6047315A JP S6047315 A JPS6047315 A JP S6047315A JP 15323483 A JP15323483 A JP 15323483A JP 15323483 A JP15323483 A JP 15323483A JP S6047315 A JPS6047315 A JP S6047315A
- Authority
- JP
- Japan
- Prior art keywords
- gas
- protrusion
- arc
- circuit breaker
- sectional area
- 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.)
- Granted
Links
Landscapes
- Circuit Breakers (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
【発明の詳細な説明】
〔発明の利用分野〕
本発明はガス遮断器、特にパンファ形ガス遮断器の絶縁
ノズルの改良に関する。DETAILED DESCRIPTION OF THE INVENTION [Field of Application of the Invention] The present invention relates to an improvement in an insulating nozzle for a gas circuit breaker, particularly a pumper type gas circuit breaker.
電力系統の尚電圧化に伴い、ガス遮断器に加わる電圧が
高くなるすう勢にある。ガス遮断器の高電圧化は１ａＭ
ユニット当りの電圧を高くすることで対処されているが
、その際短い開極距離で非常に高い電圧の加わる進み小
電流遮断責務が非常に苛酷になシ、その性能の向上が望
まれている。As electric power systems become more voltage-intensive, the voltage applied to gas circuit breakers is on the rise. High voltage of gas circuit breaker is 1aM
This has been addressed by increasing the voltage per unit, but in this case, the duty of interrupting small currents due to the application of very high voltage over a short contact distance becomes extremely severe, and it is desired to improve its performance. .
その性能の向上の一方法として最近ノズルの末広部に逆
テーパ部を有する連続した突出部を設けることが試みら
れている。第１図にその構造を示す。１は遮断動作中に
バッファシリンダ４と固定ピストン５によシ発生する圧
縮ガスを可動アーク接触子６と固定アーク接触子２の間
に発生したアークへ吹付けるガイドを兼ねた一″動絶縁
ノズルである。３は可動集電子、７は固定来電子である
。Recently, attempts have been made to provide a continuous protrusion having a reverse taper in the diverging part of the nozzle as a method of improving its performance. Figure 1 shows its structure. Reference numeral 1 denotes a one-inch dynamic insulating nozzle that also serves as a guide for blowing compressed gas generated by the buffer cylinder 4 and fixed piston 5 during the breaking operation onto the arc generated between the movable arc contact 6 and the fixed arc contact 2. 3 is a movable electron collector, and 7 is a fixed collector.
絶縁ノズルＩＫはスロート部下流側の下ｌＩＣ１１１１
１の末広部Ｂ−Ｅに逆テーバ部Ｃ−Ｄを有する突出部８
が周方向に連続して形成されている２、進み小電流遮断
では短絡電流遮断と違って遮断電流が小さいためガスの
イオン化がほとんど行なわれず冷ガス状態における絶縁
耐力により性能が左右される。The insulating nozzle IK is the lower IC1111 on the downstream side of the throat part.
A protruding portion 8 having a reverse tapered portion C-D at a widened portion B-E of 1.
are formed continuously in the circumferential direction 2. Unlike short-circuit current interruption, in advanced small current interruption, the interruption current is small, so gas ionization hardly occurs, and performance is influenced by dielectric strength in a cold gas state.
ガスの絶縁耐力はガス圧力に依存することから、進み小
電流遮断性能はガス圧力と密接に関係している。上述の
突出部８は絶縁ノズル内の圧力低下を防止する目的で形
成されたものである。しかし、突出部８をただ単に設け
ただけでは圧力低下を防止できない場合があるという欠
点があった。Since the dielectric strength of gas depends on gas pressure, advanced small current interrupting performance is closely related to gas pressure. The above-mentioned protrusion 8 is formed for the purpose of preventing pressure drop within the insulating nozzle. However, there is a drawback that simply providing the protrusion 8 may not prevent a pressure drop.
本発明の目的はかかる点に鑑みて為されたものであり、
常に突出部の効果を有効に発揮させる構造を提供するこ
とにある。The purpose of the present invention has been made in view of the above points,
It is an object of the present invention to provide a structure in which the effect of the protrusion is always effectively exhibited.
最近の研究により、突出部の効果を有効に発揮させるた
めにはガスの流路断面積に特別の関係のあることが判明
した。第２図はその様子を示したものである。Recent research has revealed that there is a special relationship with the cross-sectional area of the gas flow path in order to effectively exhibit the effect of the protrusion. Figure 2 shows this situation.
斜線で示された幅は圧力のばらつきである。The shaded width is the pressure variation.
Ｓｏはスロート部Ａ−Ｂのガス流路断面積、ＳＩは突出
部８の先端りと固定子２で四重れるガス流路町面積であ
り、横軸はＳ＋／Ｓｏで示されている。縦軸は固定子２
の先端部がノズルスロート出口と突出部の先端りの間の
領域Ｂ−Ｃ−Ｄにおるときの固定子先端部のガス圧力Ｐ
とガス遮断器の充気圧力Ｐ＋、の比で表わされている。So is the cross-sectional area of the gas flow path at the throat portion A-B, SI is the area of the gas flow path quadrupled by the end of the protrusion 8 and the stator 2, and the horizontal axis is shown as S+/So. The vertical axis is stator 2
Gas pressure P at the tip of the stator when the tip is in the area B-C-D between the nozzle throat outlet and the tip of the protrusion
It is expressed as the ratio of the charging pressure P+ of the gas circuit breaker and the charging pressure P+ of the gas circuit breaker.
固定子２がノズル１のスロートを抜は出た付近で絶縁耐
力が低１・しやすいため、固定子先端部のガス圧力Ｐは
その位置における値として比較されている。Ｓ１／Ｓｏ
≧１．５のときＰ ／ Ｐ Ｌ （１であり、ガス圧力
Ｐは充気圧力Ｐ＋、、ｌ：ｐ低下する。Ｓ＋／Ｓｏが３
から１．５に小さくなるにつれてＰ ／ Ｐ ｔ、は保
々に低下し、Ｓｒ ／Ｓｏ ＝１．５でＰ ／ Ｐ Ｌ
が極小になる。さらにＳｒ／Ｓｏが小さくなるとＰ ／
Ｐ Ｌは急速に高くなり、８＋／Ｓｏ≦１てはＰ ／
Ｐ Ｌ≧１になりガス圧力Ｐの低下がなくなる。した
がって、Ｓ１／Ｓｏ≦１．５となるように逆テーバを有
する突出部を設ければ逆テーバ部によるカスの圧縮が有
効に行なわれ固定子先端の圧力の低下が有効に防止され
る。Since the dielectric strength tends to be low in the vicinity where the stator 2 exits the throat of the nozzle 1, the gas pressure P at the tip of the stator is compared as the value at that position. S1/So
When ≧1.5, P / P L (1, and gas pressure P decreases by filling pressure P+,,l:p.S+/So is 3
As the value decreases from 1.5 to 1.5, P/P t steadily decreases, and at Sr/So = 1.5, P/P L
becomes extremely small. Furthermore, as Sr/So becomes smaller, P/
P L increases rapidly, and when 8+/So≦1, P /
P L≧1, and the gas pressure P does not decrease. Therefore, if a protruding portion having an inverted taper is provided so that S1/So≦1.5, the inverted tapered portion effectively compresses the debris and effectively prevents a drop in the pressure at the tip of the stator.
以丁、本発明の一実施例を第３図を用いて説明する。ノ
ズル１のスロー）Ａ−Ｂの下流側の末広部Ａ−Ｅに逆テ
ーパ部Ｃ−Ｄが設けられている。An embodiment of the present invention will now be described with reference to FIG. A reverse tapered portion CD is provided at the diverging portion A-E on the downstream side of the throw A-B of the nozzle 1.
逆テーパ部Ｃ−Ｄと末広部Ｄ−Ｅで突出部８を形成して
いる。突出部８の最狭あい部りと固定子２で四重れた流
路断面積はノズル１のスロートＡ−Ｂの流路断面積に等
しくなっている。轟然のことながら突出部８は円環状の
連続体で周方向に連続している。The protruding portion 8 is formed by the reverse tapered portion CD and the widened portion DE. The cross-sectional area of the four passages formed by the narrowest part of the protrusion 8 and the stator 2 is equal to the cross-sectional area of the throat A-B of the nozzle 1. The protrusion 8 is an annular continuous body that is continuous in the circumferential direction.
本夾施例によると次の効果が達成される。According to this example, the following effects are achieved.
＋１１ ”ｋ界の強い固定子先端部のガス圧力が低下し
ないため開極動作中の絶縁耐力が高く進み小′屯流性能
が向上する。+11 Since the gas pressure at the tip of the stator, where the k field is strong, does not decrease, the dielectric strength increases during the electrode opening operation, and the small current performance improves.
（２）スロート部の流路断面積と突出部の流路断面積（
たたし固定子が突出部の最狭あい部より上流側にあると
き）が等しいためガスの流液は突出部のないときと同等
であシ、遮断器の開極速度、時間に影響を与えない。(2) Channel cross-sectional area of the throat section and channel cross-sectional area of the protruding section (
When the stator is located upstream of the narrowest part of the protrusion), the gas flow is the same as when there is no protrusion, and this does not affect the opening speed and time of the circuit breaker. I won't give it.
（３）上記（２）と回じ理由で、ガスの吹き付は量が一
つの大きなポイントとなる大電流遮断特性に悪影響を与
えない。(3) For the same reason as (2) above, the amount of gas sprayed does not adversely affect the large current interrupting characteristics, where the amount is a major factor.
尚、第３図はＳＩ／５ｏ＝１の場合であったが、Ｓ１／
Ｓｏ≦１．５であれば性能に多少の変化があるものの同
様の効果が達成される。In addition, although Fig. 3 shows the case of SI/5o=1, S1/5o=1
If So≦1.5, the same effect is achieved although there is some change in performance.
以」二説明したように、本発明によれば逆テーバ部を有
する突出部によるガスの圧縮作用が有効に発揮されるた
めガス圧力の低下の小さい絶縁ノズルを得ることができ
遮断器の性能の大幅な向上が達成できる。As explained below, according to the present invention, since the gas compression action by the protrusion having the inverted tapered portion is effectively exerted, an insulating nozzle with a small drop in gas pressure can be obtained, and the performance of the circuit breaker can be improved. Significant improvements can be achieved.
第１図は先行するガス遮断器の断面図、第２図は本発明
の基礎となる特性図、第３図は本シ自明の一実施例によ
るガス遮断器の断面図である。
１・・・絶縁ノズル、２・・・固定アーク接触子、３−
１．可動集電子、４・・・バッファシリンダ、５・・・
固定ピストン、６・・・可動アーク接触子、７・・固定
果電子、第７［Ｉ（］
第２図
’Ｊ／２．ｊ
第３図
〃
−６へFIG. 1 is a sectional view of a prior gas circuit breaker, FIG. 2 is a characteristic diagram which is the basis of the present invention, and FIG. 3 is a sectional view of a gas circuit breaker according to an obvious embodiment of the present invention. 1... Insulated nozzle, 2... Fixed arc contactor, 3-
1. Movable current collector, 4...Buffer cylinder, 5...
Fixed piston, 6... Movable arc contactor, 7... Fixed output electron, 7th [I(] Figure 2'J/2.j Figure 3 -6)
Claims (1)
するアークに、絶縁ノズルを介して消弧性ガスを吹きつ
けて消弧するガス遮断器において、絶縁ノズルのスロー
ト部下流側の末広部に逆テーパ部を有する周方向に連続
した突出部を設け、当該突出部と固定接触子で囲まれた
空間の最小断面恒がスロート部の空間の断面積の１．５
倍より小さくしたことを％徴とするガス遮断器。1. In a gas circuit breaker that blows arc-extinguishing gas through an insulated nozzle to extinguish the arc that occurs between the fixed contact and the movable contact in the arc-extinguishing chamber when the arc is interrupted, the downstream side of the throat part of the insulated nozzle A protrusion continuous in the circumferential direction having a reverse tapered part is provided at the wide end of the spacer, and the minimum cross-sectional area of the space surrounded by the protrusion and the fixed contact is 1.5 of the cross-sectional area of the space of the throat part.
A gas circuit breaker whose % characteristic is that it is smaller than twice the size.
Priority Applications (6)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15323483A JPS6047315A (en) | 1983-08-24 | 1983-08-24 | Gas breaker |
| CA000460992A CA1243342A (en) | 1983-08-24 | 1984-08-14 | Gas-insulated circuit breaker |
| US06/640,580 US4667072A (en) | 1983-08-24 | 1984-08-14 | Gas-insulated circuit breaker |
| EP84109801A EP0135158B1 (en) | 1983-08-24 | 1984-08-17 | Gas-insulated circuit breaker |
| KR1019840004953A KR890002474B1 (en) | 1983-08-24 | 1984-08-17 | Gas-insulated circuit breaker |
| DE8484109801T DE3480364D1 (en) | 1983-08-24 | 1984-08-17 | Gas-insulated circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15323483A JPS6047315A (en) | 1983-08-24 | 1983-08-24 | Gas breaker |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6047315A true JPS6047315A (en) | 1985-03-14 |
| JPH0435857B2 JPH0435857B2 (en) | 1992-06-12 |
Family
ID=15557982
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15323483A Granted JPS6047315A (en) | 1983-08-24 | 1983-08-24 | Gas breaker |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6047315A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01261479A (en) * | 1988-04-12 | 1989-10-18 | Nitto Denko Corp | Pressure-sensitive adhesive |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS528505A (en) * | 1975-07-09 | 1977-01-22 | Hitachi Ltd | Manufacturing method, pipe material crush formed silencer |
-
1983
- 1983-08-24 JP JP15323483A patent/JPS6047315A/en active Granted
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS528505A (en) * | 1975-07-09 | 1977-01-22 | Hitachi Ltd | Manufacturing method, pipe material crush formed silencer |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01261479A (en) * | 1988-04-12 | 1989-10-18 | Nitto Denko Corp | Pressure-sensitive adhesive |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0435857B2 (en) | 1992-06-12 |
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